Atheism – creation.com

Some atheists apparently dont like this video, A Fool's Heart, but you can view it here. It recaps some of the effects of anti-Christian atheistic/evolutionary thinking in recent times, beginning with Robespierre, a leader of the French Revolution.

byKen Ammi

For many other articles on this topic, seeAtheism, agnosticism and humanism: godless religionsQuestions and Answers

There is confusion and debate about the term atheism and its definition.

The term atheism finds its etymology in the Greek combination of a and theos. What atheos means is, as with any term, subject to context (and perhaps personal interpretation). Note that if an atheist states, I do not believe in God, this is technically not a statement about Gods existence or lack thereof. Does atheos mean no God, without God, lack God belief or God does not exist?

References

EarlyChristians were referred to as atheists because they did not believe in the Greek or Roman gods. Yet, while they positively affirmed the non-existence of those gods they likely believed that those gods were deceptive demons whom they did believe existed (1Corinthians 8:46).

Let us consider other Greek-derived a words:

Generally, as popularized by the New Atheist movement, atheists prefer the definition of atheism as lacking belief in god(s). Thus, by applying the term atheist to themselves, such atheists are not technically making a statement about Gods existence or lack thereof.

This definition has been popularized, at least, since Charles Bradlaugh (circa 1876). It appears to be preferred so as to escape the philosophic difficulty of proving a negativeGod does not existand in order to shift the burden of proof to the theist, since the theist is making the positive affirmation that God exists.

On a polemical note there are two things to consider:

In reference to the above mentioned term agnostic, note that Thomas Henry Huxley coined this term in 1869.1 He explained that he noted two extremes: one was the atheist who positively affirmed Gods non-existence (claiming to know that God did not exist) and the other was the theists who positively affirmed Gods existence (claiming to know that God exists). Huxley said that he did not possess enough evidence to affirm positively either position. Thus, he coined a term which he saw as a middle position, which was that of lacking knowledge to decide either way (whether such knowledge actually exists outside of his personal knowledge or may someday be discovered is another issue).

As we will see next, there are various sects of atheism. There is a vast difference between the friendly atheist next door and the activists. Generally, even the activist types who are typified by the New Atheist movement will define atheism as a mere lack of belief in God. However, it is important to note that their activism demonstrates that their atheism is anything but mere lack: it is an anti-religion, anti-faith and anti-God movement.

1.1 Variations of Atheism

Atheists may be categorized under various technical terms as well as sociopolitical and cultural ones, which may overlap depending on the individual atheists preferences:

Some atheists claim that atheism is a religion3 and others have attempted to establish secular/civic/atheistic religions which we will elucidate below.

Michael Shermer, editor of The Skeptic magazine, draws a distinction between the atheist who claims, there is no God and the non-theist who claims to have no belief in God.4

As to the sociopolitical and/or cultural terms, these abound and some are: Brights, Freethinkers, Humanists, Naturalists, Rationalists, Skeptics, Secular Humanists andMaterialists.

Some atheists squabble about terminology. For example, American Atheists webmaster wrote, Atheists are NOT secular humanists, freethinkers, rationalists or ethical culturalists Often, people who are Atheists find it useful to masquerade behind such labels5 while the Freedom from Religion Foundation, claims that, Freethinkers include atheists, agnostics and rationalists.6

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By nature worship and neo-paganism I refer to the atheists tendency to replace a sense of awe of God and seeking transcendence by relating to God with seeking awe and transcendence in nature. This natural high, as it were, is not merely enjoyed but it is enjoined and said to be holier than theism.

Referring to our ability to step off the Earth and look back at ourselves, as was done in Voyager 2, Carl Sagan stated,

The very first episode of his televised series entitled Cosmos, began with Carl Sagan stating,

Presupposing a God-free reality, why atheists seek transcendent experiences remains unanswered.

Michael Shermer stated that his study of evolution was, far more enlightening and transcendent, spiritual, than anything I had experienced in seven years of being a born again Christian.8

Michael Shermer made reference to the spiritual side of science, which he referred to as sciensuality:

Michael Ruse; philosophy professor (University of Guelph), ardent evolutionist and professedly an ex-Christian who has argued for the ACLU against the balanced treatment (of creation and evolution in schools) bill in the USA, wrote:

Evolution is promoted by its practitioners as more than mere science. Evolution is promulgated as an ideology, a secular religiona full-fledged alternative to Christianity, with meaning and morality This was true of evolution in the beginning, and it is true of evolution still today

"As a social reformer therefore, Huxley, known in the papers as Pope Huxley, was determined to find a substitute for Christianity. Evolution, with its stress on unbroken lawwhich could be used to reflect messages of social progresswas the perfect candidate. Life is on an upwardly moving escalator

Indeed, recognizing that a good religion needs a moral message as well as a history and promise of future reward, Huxley increasingly turned from Darwin (who was not very good at providing these things) toward another English evolutionist. Herbert Spencerprolific writer and immensely popular philosopher to the massesshared Huxleys vision of evolution as a kind of metaphysics rather than a straight science

Evolution now has its mystical visionary, its Saint John of the Cross. Harvard entomologist and sociobiologist Edward O. Wilson tells us that we now have an alternative mythology to defeat traditional religion If people want to make a religion of evolution, that is their business The important point is that we should recognize when people are going beyond the strict science, moving into moral and social claims, thinking of their theory as an all-embracing world picture.10

Addressing fellow atheist Jonathan Miller, Richard Dawkins stated:

you and I probably do have feelings that may very well be akin to a kind of mystical wonder when we contemplate the stars, when we contemplate the galaxies, when we contemplate life, the sheer expanse of geological time. I experience, and I expect you experience, internal feelings which sound pretty much like um, what mystics feel, and they call it God. Ifand Ive been called a very religious person for that reasonif I am called a religious person, then my retort to that is, Well, youre playing with words, because what the vast majority of people mean by religious is something utterly different from this sort of transcendent, mystical experience [ ]

The transcendent sense the transcendent, mystic sense, that people who are both religious and non-religious in my usage of the term, is something very very different. In that sense, I probably am a religious person. You probably are a religious person. But that doesnt mean we think that there is a supernatural being that interferes with the world, that does anything, that manipulates anything, or by the way, that its worth praying to or asking forgiveness of sins from, etc. [ ]

I prefer to use words like religion, like God, in the way that the vast majority of people in the world would understand them, and to reserve a different kind of language for the feeling that we share with possibly your clergyman [ ] the sense of wonder that one gets as a scientist contemplating the cosmos, or contemplating mitochondria is actually much grander than anything that you will get by contemplating the traditional objects of religious mysticism.11 [the un-bracketed ellipses appear in the original transcript denoting Richard Dawkins halting way of speaking, the bracketed ones were added]

Richard Dawkins, in Is Science a Religion? said,

science does have some of religions virtues All the great religions have a place for awe, for ecstatic transport at the wonder and beauty of creation. And its exactly this feeling of spine-shivering, breath-catching awealmost worshipthis flooding of the chest with ecstatic wonder, that modern science can provide. And it does so beyond the wildest dreams of saints and mystics

Science can offer a vision of life and the universe which, as Ive already remarked, for humbling poetic inspiration far outclasses any of the mutually contradictory faiths and disappointingly recent traditions of the worlds religions

The universe at large couldnt possibly be anything other than indifferent to Christ, his birth, his passion, and his death I want to return now to the charge that science is just a faith. The more extreme version of that chargeand one that I often encounter as both a scientist and a rationalistis an accusation of zealotry and bigotry in scientists themselves as great as that found in religious people. Sometimes there may be a little bit of justice in this accusation; but as zealous bigots, we scientists are mere amateurs at the game. Were content to argue with those who disagree with us. We dont kill them.

Stephen S. Hall, in Darwins Rottweiler Sir Richard Dawkins: Evolutions Fiercest Champion, Far Too Fierce, said:

Einsteinian religion is a kind of spirituality which is nonsupernatural And that doesnt mean that its somehow less than supernatural religion. Quite the contrary .Einstein was adamant in rejecting all ideas of a personal god. It is something bigger, something grander, something that I believe any scientist can subscribe to, including those scientists whom I would call atheists. Einstein, in my terms, was an atheist, although Einstein of course was very fond of using the word God. When Einstein would use the word God, he was using it as a kind of figure of speech. When he said things like God is subtle but hes not malicious, or He does not play dice, or Did God have a choice in creating the universe? what he meant was things like randomness do not lie at the heart of all things. Could the universe have been any other way than the way it is? Einstein chose to use the word God to phrase such profound, deep questions. That, it seems to me, is the good part of religion which we can all subscribe to

What I cant understand is why we are expected to show respect for good scientists, even great scientists, who at the same time believe in a god who does things like listen to our prayers, forgive our sins, perform cheap miracles which go against, presumably, everything that the god of the physicist, the divine cosmologist, set up when he set up his great laws of nature. So I dont understand a scientist who says, I am a Roman Catholic or I am a Baptist

I suppose my hope would be that sciencethe best kind of science, the sort of science which approaches the best sort of religion, the Einsteinian spirituality that I was talking aboutis so inspiring, so exciting that it should be sellable to everybody

We have something far better to offer Why are we freethinking secular scientists not getting into that same marketplace and selling what weve got to sell? Because its a far better product, and all weve got to do is hone our salesmanship to the level that they are already doing it. [italics in original]

Such sentiments appear to be fulfillments of the Apostle Pauls reference to:

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2.1 Atheist religion

Let us consider the atheists from the 18th to the 21stcenturies who express desires to establish an atheistic religion. Perhaps we should begin with Jean-Jacques Rousseau (17121778), who conceived of a civil religion:

Two other notable 18th century attempts are Claude Henri de Rouvroy, Comte de Saint-Simon (17601825) who conceived of a new Christianity which would be founded upon Humanism and scientific socialism. The secular priesthood would consist of scientists, philosophers and engineers. Lastly, Auguste Comte (17981857) conceived of a religion of humanity.

Forwarding to the 21stcentury we will consider Gary Wolfs interview with Sam Harris:

Gary Wolfs interview with Daniel Dennett:

Sam Harris, Selfless Consciousness without Faith:

Sam Harris, A Contemplative Science:

ABC Radio National, Stephen Crittenden interviews Sam Harris:

Sam Harris, Science Must Destroy Religion:

Sam Harris, Rational Mysticism:

Humanist Manifesto I (1933) states,

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There may be as many reasons that people choose atheism as there are individuals who make that choice. These range from philosophy or science to emotion or rebellion and various combinations of such factors.

Prominent Argentinean hyperrealism artist, Helmut Ditsch, retells part of his upbringing:

Joe Orso, writing on the origin of beliefs, interviewed atheist Ira Glass, who said:

I find that I dont seem to have a choice over whether or not I believe in God, I simply find that I do not. Either you have faith or you dont. Either you believe or you dont.

Orso: I was once talking with a Chinese friend. She asked whether I believed in God. I told her I did. I returned the question. She said no, and I asked her why not. Her father, she explained, had told her there was no God when she was a child. She hadnt really thought about it much since then.16 [emphasis added]

Note carefully the words of Thomas Nagel (B.Phil., Oxford; Ph.D., Harvard), Professor of Philosophy and Law, University Professor, and Fiorello La Guardia Professor of Law. He specializes in Political Philosophy, Ethics, Epistemology, and Philosophy of Mind. He is a Fellow of the American Academy of Arts and Sciences and a Fellow of the British Academy, and has held fellowships from the Guggenheim Foundation, the National Science Foundation, and the National Endowment for the Humanities:

Consider the following words of Isaac Asimov, one of the most prolific scientific writers of the last century:

Gary Wolf , contributing editor to Wired magazine, includes himself in the following description: we lax agnostics, we noncommittal nonbelievers, we vague deists who would be embarrassed to defend antique absurdities like the Virgin Birth or the notion that Mary rose into heaven without dying, or any other blatant myth. He wrote:

At dinner parties or over drinks, I ask people to declare themselves. Who here is an atheist? I ask.

Usually, the first response is silence, accompanied by glances all around in the hope that somebody else will speak first. Then, after a moment, somebody does, almost always a man, almost always with a defiant smile and a tone of enthusiasm. He says happily, I am!

But it is the next comment that is telling. Somebody turns to him and says: You would be.

Why? Because you enjoy [irritating] people . Well, thats true.

This type of conversation takes place not in central Ohio, where I was born, or in Utah, where I was a teenager, but on the West Coast, among technical and scientific people, possibly the social group that is least likely among all Americans to be religious.13

Thus, we find various motivating factors which lead to atheism and have absolutely nothing to do with science or intellect.

Paul Vitz, Professor of Psychology at New York University, made a fascinating study of the lives of some of the most influential atheists. In his book Faith of the Fatherless: the Psychology of Atheism he concluded that these persons rejected God because they rejected their own fathers. This was due to their poor relationships with their fathers, or due to their fathers absence, or due to their rebellion against their fathers.20 Along this line of research, it would be interesting to consider the effect that the death of friends and family has had on the rejection of God. From Charles Darwin to Ted Turner the death of friends and family has played a part.

Gary Wolf noted,

The Associated Press reported on an interview with Ted Turner published in The New Yorker:

CNN founder Ted Turner was suicidal after the breakup of his marriage to Jane Fonda and his loss of control of Turner Broadcasting his marriage to Fonda broke up partly because of her decision to become a practicing Christian

Turner is a strident non-believer, having lost his faith after his sister, Mary Jane, died of a painful disease called systemic lupus erythematosus. I was taught that God was love and God was powerful, Turner said. And I couldnt understand how someone so innocent should be made or allowed to suffer so.

Tony Snow, who was the White House Press Secretary in 2006/2007, and was a Christian, died of cancer in July 2008. He wrote an essay entitled, Cancers Unexpected Blessings.23 Consider, in contrast, how a God-centered person dealt with his own impending death:

In contrast, consider the words of atheist William Provine, professor of the history of science at Cornell University:

With regards to his own cancer, a brain tumor, Provine has stated that he would shoot himself in the head if his brain tumor returned.25 Apparently, one less bio-organism is irrelevant in an absolutely materialistic world.

3.1 Natural born Atheist

Another reason for rejecting God (choosing atheism), is a willing acceptance of satanic deception.

The angel Lucifer (luminous one) fell and became Satan (adversary) due to his desire to supplant God. This was Lucifers single-minded obsession.

He not only rejected God by attempting to supplant Him, but he urged humans to do likewise. Satan urged Eve to choose against God for her own self-fulfilment:

He said to the woman, Did God actually say, You shall not eat of any tree in the garden? And the woman said to the serpent, We may eat of the fruit of the trees in the garden, but God said, You shall not eat of the fruit of the tree that is in the midst of the garden, neither shall you touch it, lest you die. But the serpent said to the woman, You will not surely die. For God knows that when you eat of it your eyes will be opened, and you will be like God, knowing good and evil. (Genesis 3:1-5 ESV).

The tactic is clear: firstly, question Gods statements, then, contradict Gods statements and, finally, urge rebellion in seeking equality with God.

This manifests in atheists as

This satanic deception appeals strongly to atheists as it bolsters two of their desired delusions: 1) absolute autonomybeing free to do as they please, and 2) the lack of ultimate accountabilitythere are no eternal consequences for doing as they please.

A subset of the question of why some people choose atheism is the atheist claim that we are all natural born atheists. In part this is incumbent upon which definition of atheism we are employing. Obviously, we are not born positively asserting Gods non-existence. Thus, the claim is that we are all born lacking a belief in God. Logically, this claim is accurate only at this point and is actually not successfully applicable beyond this point.

Atheists who make this argument claim that this argument demonstrates that man is not God-made but that God is man-made. In other words, they claim that we only believe in God because someone taught us to believe in God, often during childhood before we were able to consider the claim rationally. Yet, this claim is faulty on many levels, for example:

We are born knowing nothing at all and must be taught, and later take it upon ourselves to learn, anything and everything that we will ever know or believe, including atheism.

We are natural-born bed wetters but that does not mean that we should remain that way.

This is ultimately a form of the logically fallacious ad hominem (to the man). This fallacy occurs when what is supposed to be a counterargument attacks the person, the source of the original argument, while leaving the argument unanswered. Thus, just because belief in God is something that is taught does not discredit belief in God. It would be fallacious to claim that God does not exist because human beings invented the idea of Gods existenceGod wants us to discover His existence: you will seek Me and find Me, when you search for Me with all your heart (Jeremiah 29:13).

Furthermore, this claim does not consider that many people came to believe in God in adulthood and having come from a completely secular (atheistic) upbringing.

Although, perhaps we could grant the claim: if atheists want to argue that atheism requires no more intellect than that which an infant can muster, why should we argue?

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Here is a video debate between an atheist and the author of this article: Morality: natural or supernatural?

Technically, ethics refers to what should be and morals to what is or; prescription and description. Atheists differ on the issue of ethics and morality; some claim that there are absolutes and some do not. As to the question of whether atheists can make absolute moral statements, this is tantamount to the first year theology student who, when asked, Do you believe in infant baptism? responded, Sure I do; Ive seen it done. Yes, atheists can make any statements about anything at allthe question is: are the statements viable?

Atheists make epistemic statements about morality but do not provide an ontological premise for ethics.26 That is to say that they can muse upon issues of morality and come to any conclusion that they please. However, these turn out to be arbitrary personal preferences that are expressed as dogmatic assertions.

Some atheists do make attempts at providing an ontological basis for ethics. These range quite widelyfrom considering the behavior of apes to Game Theory.

Continued here:

Atheism - creation.com

New Atheism – Wikipedia

New Atheism is a term coined in 2006 by the agnostic journalist Gary Wolf to describe the positions promoted by some atheists of the twenty-first century.[1][2] This modern-day atheism is advanced by a group of thinkers and writers who advocate the view that superstition, religion and irrationalism should not simply be tolerated but should be countered, criticized, and exposed by rational argument wherever their influence arises in government, education, and politics.[3][4] According to Richard Ostling, Bertrand Russell, in his 1927 essay Why I Am Not a Christian, put forward similar positions as those espoused by the New Atheists, suggesting that there are no substantive differences between traditional atheism and New Atheism.[5]

New Atheism lends itself to and often overlaps with secular humanism and antitheism, particularly in its criticism of what many New Atheists regard as the indoctrination of children and the perpetuation of ideologies founded on belief in the supernatural. Some critics of the movement characterise it pejoratively as "militant atheism" or "fundamentalist atheism".[a][6][7][8][9]

The Harvard botanist Asa Gray, a believing Christian and one of the first supporters of Charles Darwin's theory of evolution, commented in 1868 that the more worldly Darwinists in England had "the English-materialistic-positivistic line of thought".[10] Darwin's supporter Thomas Huxley was openly skeptical, as the biographer Janet Browne describes:

Huxley was rampaging on miracles and the existence of the soul. A few months later, he was to coin the word "agnostic" to describe his own position as neither a believer nor a disbeliever, but one who considered himself free to inquire rationally into the basis of knowledge, a philosopher of pure reason [...] The term fitted him well [...] and it caught the attention of the other free thinking, rational doubters in Huxley's ambit, and came to signify a particularly active form of scientific rationalism during the final decades of the 19th century. [...] In his hands, agnosticism became as doctrinaire as anything else--a religion of skepticism. Huxley used it as a creed that would place him on a higher moral plane than even bishops and archbishops. All the evidence would nevertheless suggest that Huxley was sincere in his rejection of the charge of outright atheism against himself. He refused to be "a liar". To inquire rigorously into the spiritual domain, he asserted, was a more elevated undertaking than slavishly to believe or disbelieve. "A deep sense of religion is compatible with the entire absence of theology," he had told [Anglican clergyman] Charles Kingsley back in 1860. "Pope Huxley", the [magazine] Spectator dubbed him. The label stuck." Janet Browne[11]

The 2004 publication of The End of Faith: Religion, Terror, and the Future of Reason by Sam Harris, a bestseller in the United States, was joined over the next couple years by a series of popular best-sellers by atheist authors.[12] Harris was motivated by the events of 11 September 2001, which he laid directly at the feet of Islam, while also directly criticizing Christianity and Judaism.[13] Two years later Harris followed up with Letter to a Christian Nation, which was also a severe criticism of Christianity.[14] Also in 2006, following his television documentary series The Root of All Evil?, Richard Dawkins published The God Delusion, which was on the New York Times best-seller list for 51 weeks.[15]

In a 2010 column entitled "Why I Don't Believe in the New Atheism", Tom Flynn contends that what has been called "New Atheism" is neither a movement nor new, and that what was new was the publication of atheist material by big-name publishers, read by millions, and appearing on bestseller lists.[16]

On 6 November 2015, the New Republic published an article entitled, Is the New Atheism dead?[17] The atheist and evolutionary biologist David Sloan Wilson wrote, "The world appears to be tiring of the New Atheism movement.."[18] In 2017, PZ Myers who formerly considered himself a new atheist, publicly renounced the New Atheism movement.[19]

On 30 September 2007, four prominent atheists (Richard Dawkins, Sam Harris, Christopher Hitchens and Daniel Dennett) met at Hitchens' residence in Washington, D.C., for a private two-hour unmoderated discussion. The event was videotaped and titled "The Four Horsemen".[21] During "The God Debate" in 2010 featuring Christopher Hitchens versus Dinesh D'Souza, the men were collectively referred to as the "Four Horsemen of the Non-Apocalypse",[22] an allusion to the biblical Four Horsemen of the Apocalypse from the Book of Revelation.[23] The four have been described disparagingly as "evangelical atheists".[24]

Sam Harris is the author of the bestselling non-fiction books The End of Faith, Letter to a Christian Nation, The Moral Landscape, and Waking Up: A Guide to Spirituality Without Religion, as well as two shorter works, initially published as e-books, Free Will[25] and Lying.[26] Harris is a co-founder of the Reason Project.

Richard Dawkins is the author of The God Delusion,[27] which was preceded by a Channel 4 television documentary titled The Root of All Evil?. He is the founder of the Richard Dawkins Foundation for Reason and Science. He wrote: "I don't object to the horseman label, by the way. I'm less keen on 'new atheist': it isn't clear to me how we differ from old atheists."[28]

Christopher Hitchens was the author of God Is Not Great[29] and was named among the "Top 100 Public Intellectuals" by Foreign Policy and Prospect magazines. In addition, Hitchens served on the advisory board of the Secular Coalition for America. In 2010 Hitchens published his memoir Hitch-22 (a nickname provided by close personal friend Salman Rushdie, whom Hitchens always supported during and following The Satanic Verses controversy).[30] Shortly after its publication, Hitchens was diagnosed with esophageal cancer, which led to his death in December 2011.[31] Before his death, Hitchens published a collection of essays and articles in his book Arguably;[32] a short edition Mortality[33] was published posthumously in 2012. These publications and numerous public appearances provided Hitchens with a platform to remain an astute atheist during his illness, even speaking specifically on the culture of deathbed conversions and condemning attempts to convert the terminally ill, which he opposed as "bad taste".[34][35]

Daniel Dennett, author of Darwin's Dangerous Idea,[36] Breaking the Spell[37] and many others, has also been a vocal supporter of The Clergy Project,[38] an organization that provides support for clergy in the US who no longer believe in God and cannot fully participate in their communities any longer.[39]

After the death of Hitchens, Ayaan Hirsi Ali (who attended the 2012 Global Atheist Convention, which Hitchens was scheduled to attend) was referred to as the "plus one horse-woman", since she was originally invited to the 2007 meeting of the "Horsemen" atheists but had to cancel at the last minute.[40] Hirsi Ali was born in Mogadishu, Somalia, fleeing in 1992 to the Netherlands in order to escape an arranged marriage.[41] She became involved in Dutch politics, rejected faith, and became vocal in opposing Islamic ideology, especially concerning women, as exemplified by her books Infidel and The Caged Virgin.[42] Hirsi Ali was later involved in the production of the film Submission, for which her friend Theo Van Gogh was murdered with a death threat to Hirsi Ali pinned to his chest.[43] This event resulted in Hirsi Ali's hiding and later immigration to the United States, where she now resides and remains a prolific critic of Islam.[44] She regularly speaks out against the treatment of women in Islamic doctrine and society[45] and is a proponent of free speech and the freedom to offend.[46][47]

Many contemporary atheists write from a scientific perspective. Unlike previous writers, many of whom thought that science was indifferent or even incapable of dealing with the "God" concept, Dawkins argues to the contrary, claiming the "God Hypothesis" is a valid scientific hypothesis,[69] having effects in the physical universe, and like any other hypothesis can be tested and falsified. The late Victor Stenger proposed that the personal Abrahamic God is a scientific hypothesis that can be tested by standard methods of science. Both Dawkins and Stenger conclude that the hypothesis fails any such tests,[70] and argue that naturalism is sufficient to explain everything we observe in the universe, from the most distant galaxies to the origin of life, the existence of different species, and the inner workings of the brain and consciousness. Nowhere, they argue, is it necessary to introduce God or the supernatural to understand reality. New Atheists reject Jesus' divinity.[71]

Non-believers (in religion and the supernatural) assert that many religious or supernatural claims (such as the virgin birth of Jesus and the afterlife) are scientific claims in nature. They argue, as do deists and Progressive Christians, for instance, that the issue of Jesus' supposed parentage is not a question of "values" or "morals" but a question of scientific inquiry.[72] Rational thinkers believe science is capable of investigating at least some, if not all, supernatural claims.[73] Institutions such as the Mayo Clinic and Duke University are attempting to find empirical support for the healing power of intercessory prayer.[74] According to Stenger, these experiments have thus far found no evidence that intercessory prayer works.[75]

Stenger also argues in his book, God: The Failed Hypothesis, that a God having omniscient, omnibenevolent and omnipotent attributes, which he termed a 3O God, cannot logically exist.[76] A similar series of logical disproofs of the existence of a God with various attributes can be found in Michael Martin and Ricki Monnier's The Impossibility of God,[77] or Theodore M. Drange's article, "Incompatible-Properties Arguments".[78]

Richard Dawkins has been particularly critical of the conciliatory view that science and religion are not in conflict, noting, for example, that the Abrahamic religions constantly deal in scientific matters. In a 1998 article published in Free Inquiry magazine[72] and later in his 2006 book The God Delusion, Dawkins expresses disagreement with the view advocated by Stephen Jay Gould that science and religion are two non-overlapping magisteria (NOMA), each existing in a "domain where one form of teaching holds the appropriate tools for meaningful discourse and resolution". In Gould's proposal, science and religion should be confined to distinct non-overlapping domains: science would be limited to the empirical realm, including theories developed to describe observations, while religion would deal with questions of ultimate meaning and moral value. Dawkins contends that NOMA does not describe empirical facts about the intersection of science and religion: "It is completely unrealistic to claim, as Gould and many others do, that religion keeps itself away from science's turf, restricting itself to morals and values. A universe with a supernatural presence would be a fundamentally and qualitatively different kind of universe from one without. The difference is, inescapably, a scientific difference. Religions make existence claims, and this means scientific claims."

Popularized by Sam Harris is the view that science and thereby currently unknown objective facts may instruct human morality in a globally comparable way. Harris' book The Moral Landscape[79] and accompanying TED Talk How Science can Determine Moral Values[80] propose that human well-being and conversely suffering may be thought of as a landscape with peaks and valleys representing numerous ways to achieve extremes in human experience, and that there are objective states of well-being.

New Atheism is politically engaged in a variety of ways. These include campaigns to draw attention to the biased privileged position religion has and to reduce the influence of religion in the public sphere, attempts to promote cultural change (centering, in the United States, on the mainstream acceptance of atheism), and efforts to promote the idea of an "atheist identity". Internal strategic divisions over these issues have also been notable, as are questions about the diversity of the movement in terms of its gender and racial balance.[81]

The theologians Jeffrey Robbins and Christopher Rodkey take issue with what they regard as "the evangelical nature of the New Atheism, which assumes that it has a Good News to share, at all cost, for the ultimate future of humanity by the conversion of as many people as possible." They believe they have found similarities between New Atheism and evangelical Christianity and conclude that the all-consuming nature of both "encourages endless conflict without progress" between both extremities.[82]

Sociologist William Stahl said, "What is striking about the current debate is the frequency with which the New Atheists are portrayed as mirror images of religious fundamentalists."[83]

The atheist philosopher of science Michael Ruse has made the claim that Richard Dawkins would fail "introductory" courses on the study of "philosophy or religion" (such as courses on the philosophy of religion), courses which are offered, for example, at many educational institutions such as colleges and universities around the world.[84][85] Ruse also claims that the movement of New Atheismwhich is perceived, by him, to be a "bloody disaster"makes him ashamed, as a professional philosopher of science, to be among those holding to an atheist position, particularly as New Atheism does science a "grave disservice" and does a "disservice to scholarship" at more general level.[84][85]

Paul Kurtz, editor in chief of Free Inquiry, founder of Prometheus Books, was critical of many of the new atheists.[8] He said, "I consider them atheist fundamentalists... They're anti-religious, and they're mean-spirited, unfortunately. Now, they're very good atheists and very dedicated people who do not believe in God. But you have this aggressive and militant phase of atheism, and that does more damage than good".[9]

Jonathan Sacks, author of The Great Partnership: Science, Religion, and the Search for Meaning, feels the new atheists miss the target by believing the "cure for bad religion is no religion, as opposed to good religion". He wrote:

Atheism deserves better than the new atheists whose methodology consists of criticizing religion without understanding it, quoting texts without contexts, taking exceptions as the rule, confusing folk belief with reflective theology, abusing, mocking, ridiculing, caricaturing, and demonizing religious faith and holding it responsible for the great crimes against humanity. Religion has done harm; I acknowledge that. But the cure for bad religion is good religion, not no religion, just as the cure for bad science is good science, not the abandonment of science.[86]

The philosopher Massimo Pigliucci contends that the new atheist movement overlaps with scientism, which he finds to be philosophically unsound. He writes: "What I do object to is the tendency, found among many New Atheists, to expand the definition of science to pretty much encompassing anything that deals with 'facts', loosely conceived..., it seems clear to me that most of the New Atheists (except for the professional philosophers among them) pontificate about philosophy very likely without having read a single professional paper in that field.... I would actually go so far as to charge many of the leaders of the New Atheism movement (and, by implication, a good number of their followers) with anti-intellectualism, one mark of which is a lack of respect for the proper significance, value, and methods of another field of intellectual endeavor."[87]

Atheist professor Jacques Berlinerblau has criticised the New Atheists' mocking of religion as being inimical to their goals and claims that they haven't achieved anything politically.[88]

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New Atheism - Wikipedia

Time travel – Wikipedia

Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically using a hypothetical device known as a time machine. Time travel is a widely-recognized concept in philosophy and fiction. The idea of a time machine was popularized by H. G. Wells' 1895 novel The Time Machine.

It is uncertain if time travel to the past is physically possible. Forward time travel, outside the usual sense of the perception of time, is an extensively-observed phenomenon and well-understood within the framework of special relativity and general relativity. However, making one body advance or delay more than a few milliseconds compared to another body is not feasible with current technology.[1] As for backwards time travel, it is possible to find solutions in general relativity that allow for it, but the solutions require conditions that may not be physically possible. Traveling to an arbitrary point in spacetime has a very limited support in theoretical physics, and usually only connected with quantum mechanics or wormholes, also known as Einstein-Rosen bridges.

Some ancient myths depict a character skipping forward in time. In Hindu mythology, the Mahabharata mentions the story of King Raivata Kakudmi, who travels to heaven to meet the creator Brahma and is surprised to learn when he returns to Earth that many ages have passed.[2] The Buddhist Pli Canon mentions the relativity of time. The Payasi Sutta tells of one of the Buddha's chief disciples, Kumara Kassapa, who explains to the skeptic Payasi that time in the Heavens passes differently than on Earth.[3] The Japanese tale of "Urashima Tar",[4] first described in the Nihongi (720) tells of a young fisherman named Urashima Taro who visits an undersea palace. After three days, he returns home to his village and finds himself 300 years in the future, where he has been forgotten, his house is in ruins, and his family has died.[5] In Jewish tradition, the 1st-century BC scholar Honi ha-M'agel is said to have fallen asleep and slept for seventy years. When waking up he returned home but found none of the people he knew, and no one believed his claims of who he was.[6]

Early science fiction stories feature characters who sleep for years and awaken in a changed society, or are transported to the past through supernatural means. Among them L'An 2440, rve s'il en ft jamais (1770) by Louis-Sbastien Mercier, Rip Van Winkle (1819) by Washington Irving, Looking Backward (1888) by Edward Bellamy, and When the Sleeper Awakes (1899) by H.G. Wells. Prolonged sleep, like the more familiar time machine, is used as a means of time travel in these stories.[7]

The earliest work about backwards time travel is uncertain. Samuel Madden's Memoirs of the Twentieth Century (1733) is a series of letters from British ambassadors in 1997 and 1998 to diplomats in the past, conveying the political and religious conditions of the future.[8]:9596 Because the narrator receives these letters from his guardian angel, Paul Alkon suggests in his book Origins of Futuristic Fiction that "the first time-traveler in English literature is a guardian angel."[8]:85 Madden does not explain how the angel obtains these documents, but Alkon asserts that Madden "deserves recognition as the first to toy with the rich idea of time-travel in the form of an artifact sent backward from the future to be discovered in the present."[8]:9596 In the science fiction anthology Far Boundaries (1951), editor August Derleth claims that an early short story about time travel is Missing One's Coach: An Anachronism, written for the Dublin Literary Magazine[9] by an anonymous author in 1838.[10]:3 While the narrator waits under a tree for a coach to take him out of Newcastle, he is transported back in time over a thousand years. He encounters the Venerable Bede in a monastery and explains to him the developments of the coming centuries. However, the story never makes it clear whether these events are real or a dream.[10]:1138 Another early work about time travel is The Forebears of Kalimeros: Alexander, son of Philip of Macedon by Alexander Veltman published in 1836.[11]

Charles Dickens's A Christmas Carol (1843) has early depictions of time travel in both directions, as the protagonist, Ebenezer Scrooge, is transported to Christmases past and future. Other stories employ the same template, where a character naturally goes to sleep, and upon waking up find themselves in a different time.[12] A clearer example of backward time travel is found in the popular 1861 book Paris avant les hommes (Paris before Men) by the French botanist and geologist Pierre Boitard, published posthumously. In this story, the protagonist is transported to the prehistoric past by the magic of a "lame demon" (a French pun on Boitard's name), where he encounters a Plesiosaur and an apelike ancestor and is able to interact with ancient creatures.[13] Edward Everett Hale's "Hands Off" (1881) tells the story of an unnamed being, possibly the soul of a person who has recently died, who interferes with ancient Egyptian history by preventing Joseph's enslavement. This may have been the first story to feature an alternate history created as a result of time travel.[14]:54

One of the first stories to feature time travel by means of a machine is "The Clock that Went Backward" by Edward Page Mitchell,[15] which appeared in the New York Sun in 1881. However, the mechanism borders on fantasy. An unusual clock, when wound, runs backwards and transports people nearby back in time. The author does not explain the origin or properties of the clock.[14]:55 Enrique Gaspar y Rimbau's El Anacronpete (1887) may have been the first story to feature a vessel engineered to travel through time.[16][17] Andrew Sawyer has commented that the story "does seem to be the first literary description of a time machine noted so far", adding that "Edward Page Mitchell's story 'The Clock That Went Backward' (1881) is usually described as the first time-machine story, but I'm not sure that a clock quite counts."[18] H. G. Wells's The Time Machine (1895) popularized the concept of time travel by mechanical means.[19]

Some theories, most notably special and general relativity, suggest that suitable geometries of spacetime or specific types of motion in space might allow time travel into the past and future if these geometries or motions were possible.[20]:499 In technical papers, physicists discuss the possibility of closed timelike curves, which are world lines that form closed loops in spacetime, allowing objects to return to their own past. There are known to be solutions to the equations of general relativity that describe spacetimes which contain closed timelike curves, such as Gdel spacetime, but the physical plausibility of these solutions is uncertain.

Many in the scientific community believe that backward time travel is highly unlikely. Any theory that would allow time travel would introduce potential problems of causality.[21] The classic example of a problem involving causality is the "grandfather paradox": what if one were to go back in time and kill one's own grandfather before one's father was conceived? Some physicists, such as Novikov and Deutsch, suggested that these sorts of temporal paradoxes can be avoided through the Novikov self-consistency principle or to a variation of the many-worlds interpretation with interacting worlds.[22]

Time travel to the past is theoretically possible in certain general relativity spacetime geometries that permit traveling faster than the speed of light, such as cosmic strings, transversable wormholes, and Alcubierre drive.[23][24]:33130 The theory of general relativity does suggest a scientific basis for the possibility of backward time travel in certain unusual scenarios, although arguments from semiclassical gravity suggest that when quantum effects are incorporated into general relativity, these loopholes may be closed.[25] These semiclassical arguments led Stephen Hawking to formulate the chronology protection conjecture, suggesting that the fundamental laws of nature prevent time travel,[26] but physicists cannot come to a definite judgment on the issue without a theory of quantum gravity to join quantum mechanics and general relativity into a completely unified theory.[27][28]:150

The theory of general relativity describes the universe under a system of field equations that determine the metric, or distance function, of spacetime. There exist exact solutions to these equations that include closed time-like curves, which are world lines that intersect themselves; some point in the causal future of the world line is also in its causal past, a situation which is akin to time travel. Such a solution was first proposed by Kurt Gdel, a solution known as the Gdel metric, but his (and others') solution requires the universe to have physical characteristics that it does not appear to have,[20]:499 such as rotation and lack of Hubble expansion. Whether general relativity forbids closed time-like curves for all realistic conditions is still being researched.[29]

Wormholes are a hypothetical warped spacetime which are permitted by the Einstein field equations of general relativity.[30]:100 A proposed time-travel machine using a traversable wormhole would hypothetically work in the following way: One end of the wormhole is accelerated to some significant fraction of the speed of light, perhaps with some advanced propulsion system, and then brought back to the point of origin. Alternatively, another way is to take one entrance of the wormhole and move it to within the gravitational field of an object that has higher gravity than the other entrance, and then return it to a position near the other entrance. For both of these methods, time dilation causes the end of the wormhole that has been moved to have aged less, or become "younger", than the stationary end as seen by an external observer; however, time connects differently through the wormhole than outside it, so that synchronized clocks at either end of the wormhole will always remain synchronized as seen by an observer passing through the wormhole, no matter how the two ends move around.[20]:502 This means that an observer entering the "younger" end would exit the "older" end at a time when it was the same age as the "younger" end, effectively going back in time as seen by an observer from the outside. One significant limitation of such a time machine is that it is only possible to go as far back in time as the initial creation of the machine;[20]:503 in essence, it is more of a path through time than it is a device that itself moves through time, and it would not allow the technology itself to be moved backward in time.

According to current theories on the nature of wormholes, construction of a traversable wormhole would require the existence of a substance with negative energy, often referred to as "exotic matter". More technically, the wormhole spacetime requires a distribution of energy that violates various energy conditions, such as the null energy condition along with the weak, strong, and dominant energy conditions. However, it is known that quantum effects can lead to small measurable violations of the null energy condition,[30]:101 and many physicists believe that the required negative energy may actually be possible due to the Casimir effect in quantum physics.[31] Although early calculations suggested a very large amount of negative energy would be required, later calculations showed that the amount of negative energy can be made arbitrarily small.[32]

In 1993, Matt Visser argued that the two mouths of a wormhole with such an induced clock difference could not be brought together without inducing quantum field and gravitational effects that would either make the wormhole collapse or the two mouths repel each other.[33] Because of this, the two mouths could not be brought close enough for causality violation to take place. However, in a 1997 paper, Visser hypothesized that a complex "Roman ring" (named after Tom Roman) configuration of an N number of wormholes arranged in a symmetric polygon could still act as a time machine, although he concludes that this is more likely a flaw in classical quantum gravity theory rather than proof that causality violation is possible.[34]

Another approach involves a dense spinning cylinder usually referred to as a Tipler cylinder, a GR solution discovered by Willem Jacob van Stockum[35] in 1936 and Kornel Lanczos[36] in 1924, but not recognized as allowing closed timelike curves[37]:21 until an analysis by Frank Tipler[38] in 1974. If a cylinder is infinitely long and spins fast enough about its long axis, then a spaceship flying around the cylinder on a spiral path could travel back in time (or forward, depending on the direction of its spiral). However, the density and speed required is so great that ordinary matter is not strong enough to construct it. A similar device might be built from a cosmic string, but none are known to exist, and it does not seem to be possible to create a new cosmic string. Physicist Ronald Mallett is attempting to recreate the conditions of a rotating black hole with ring lasers, in order to bend spacetime and allow for time travel.[39]

A more fundamental objection to time travel schemes based on rotating cylinders or cosmic strings has been put forward by Stephen Hawking, who proved a theorem showing that according to general relativity it is impossible to build a time machine of a special type (a "time machine with the compactly generated Cauchy horizon") in a region where the weak energy condition is satisfied, meaning that the region contains no matter with negative energy density (exotic matter). Solutions such as Tipler's assume cylinders of infinite length, which are easier to analyze mathematically, and although Tipler suggested that a finite cylinder might produce closed timelike curves if the rotation rate were fast enough,[37]:169 he did not prove this. But Hawking points out that because of his theorem, "it can't be done with positive energy density everywhere! I can prove that to build a finite time machine, you need negative energy."[28]:96 This result comes from Hawking's 1992 paper on the chronology protection conjecture, where he examines "the case that the causality violations appear in a finite region of spacetime without curvature singularities" and proves that "there will be a Cauchy horizon that is compactly generated and that in general contains one or more closed null geodesics which will be incomplete. One can define geometrical quantities that measure the Lorentz boost and area increase on going round these closed null geodesics. If the causality violation developed from a noncompact initial surface, the averaged weak energy condition must be violated on the Cauchy horizon."[26] This theorem does not rule out the possibility of time travel by means of time machines with the non-compactly generated Cauchy horizons (such as the Deutsch-Politzer time machine) or in regions which contain exotic matter, which would be used for traversable wormholes or the Alcubierre drive.

When a signal is sent from one location and received at another location, then as long as the signal is moving at the speed of light or slower, the mathematics of simultaneity in the theory of relativity show that all reference frames agree that the transmission-event happened before the reception-event. When the signal travels faster than light, it is received before it is sent, in all reference frames.[40] The signal could be said to have moved backward in time. This hypothetical scenario is sometimes referred to as a tachyonic antitelephone.[41]

Quantum-mechanical phenomena such as quantum teleportation, the EPR paradox, or quantum entanglement might appear to create a mechanism that allows for faster-than-light (FTL) communication or time travel, and in fact some interpretations of quantum mechanics such as the Bohm interpretation presume that some information is being exchanged between particles instantaneously in order to maintain correlations between particles.[42] This effect was referred to as "spooky action at a distance" by Einstein.

Nevertheless, the fact that causality is preserved in quantum mechanics is a rigorous result in modern quantum field theories, and therefore modern theories do not allow for time travel or FTL communication. In any specific instance where FTL has been claimed, more detailed analysis has proven that to get a signal, some form of classical communication must also be used.[43] The no-communication theorem also gives a general proof that quantum entanglement cannot be used to transmit information faster than classical signals.

A variation of Everett's many-worlds interpretation (MWI) of quantum mechanics provides a resolution to the grandfather paradox that involves the time traveler arriving in a different universe than the one they came from; it's been argued that since the traveler arrives in a different universe's history and not their own history, this is not "genuine" time travel.[44] The accepted many-worlds interpretation suggests that all possible quantum events can occur in mutually exclusive histories.[45] However, some variations allow different universes to interact. This concept is most often used in science-fiction, but some physicists such as David Deutsch have suggested that a time traveler should end up in a different history than the one he started from.[46][47] On the other hand, Stephen Hawking has argued that even if the MWI is correct, we should expect each time traveler to experience a single self-consistent history, so that time travelers remain within their own world rather than traveling to a different one.[48] The physicist Allen Everett argued that Deutsch's approach "involves modifying fundamental principles of quantum mechanics; it certainly goes beyond simply adopting the MWI". Everett also argues that even if Deutsch's approach is correct, it would imply that any macroscopic object composed of multiple particles would be split apart when traveling back in time through a wormhole, with different particles emerging in different worlds.[22]

Certain experiments carried out give the impression of reversed causality, but fail to show it under closer examination.

The delayed choice quantum eraser experiment performed by Marlan Scully involves pairs of entangled photons that are divided into "signal photons" and "idler photons", with the signal photons emerging from one of two locations and their position later measured as in the double-slit experiment. Depending on how the idler photon is measured, the experimenter can either learn which of the two locations the signal photon emerged from or "erase" that information. Even though the signal photons can be measured before the choice has been made about the idler photons, the choice seems to retroactively determine whether or not an interference pattern is observed when one correlates measurements of idler photons to the corresponding signal photons. However, since interference can only be observed after the idler photons are measured and they are correlated with the signal photons, there is no way for experimenters to tell what choice will be made in advance just by looking at the signal photons, only by gathering classical information from the entire system; thus causality is preserved.[49]

The experiment of Lijun Wang might also show causality violation since it made it possible to send packages of waves through a bulb of caesium gas in such a way that the package appeared to exit the bulb 62 nanoseconds before its entry, but a wave package is not a single well-defined object but rather a sum of multiple waves of different frequencies (see Fourier analysis), and the package can appear to move faster than light or even backward in time even if none of the pure waves in the sum do so. This effect cannot be used to send any matter, energy, or information faster than light,[50] so this experiment is understood not to violate causality either.

The physicists Gnter Nimtz and Alfons Stahlhofen, of the University of Koblenz, claim to have violated Einstein's theory of relativity by transmitting photons faster than the speed of light. They say they have conducted an experiment in which microwave photons traveled "instantaneously" between a pair of prisms that had been moved up to 3ft (0.91m) apart, using a phenomenon known as quantum tunneling. Nimtz told New Scientist magazine: "For the time being, this is the only violation of special relativity that I know of." However, other physicists say that this phenomenon does not allow information to be transmitted faster than light. Aephraim Steinberg, a quantum optics expert at the University of Toronto, Canada, uses the analogy of a train traveling from Chicago to New York, but dropping off train cars at each station along the way, so that the center of the train moves forward at each stop; in this way, the speed of the center of the train exceeds the speed of any of the individual cars.[51]

Shengwang Du claims in a peer-reviewed journal to have observed single photons' precursors, saying that they travel no faster than c in a vacuum. His experiment involved slow light as well as passing light through a vacuum. He generated two single photons, passing one through rubidium atoms that had been cooled with a laser (thus slowing the light) and passing one through a vacuum. Both times, apparently, the precursors preceded the photons' main bodies, and the precursor traveled at c in a vacuum. According to Du, this implies that there is no possibility of light traveling faster than c and, thus, no possibility of violating causality.[52]

The absence of time travelers from the future is a variation of the Fermi paradox. As the absence of extraterrestrial visitors does not prove they do not exist, so the absence of time travelers fails to prove time travel is physically impossible; it might be that time travel is physically possible but is never developed or is cautiously used. Carl Sagan once suggested the possibility that time travelers could be here but are disguising their existence or are not recognized as time travelers.[27] Some versions of general relativity suggest that time travel might only be possible in a region of spacetime that is warped a certain way, and hence time travelers would not be able to travel back to earlier regions in spacetime, before this region existed. Stephen Hawking stated that this would explain why the world has not already been overrun by "tourists from the future."[48]

Several experiments have been carried out to try to entice future humans, who might invent time travel technology, to come back and demonstrate it to people of the present time. Events such as Perth's Destination Day or MIT's Time Traveler Convention heavily publicized permanent "advertisements" of a meeting time and place for future time travelers to meet.[53] In 1982, a group in Baltimore, Maryland, identifying itself as the Krononauts, hosted an event of this type welcoming visitors from the future.[54][55] These experiments only stood the possibility of generating a positive result demonstrating the existence of time travel, but have failed so farno time travelers are known to have attended either event. Some versions of the many-worlds interpretation can be used to suggest that future humans have traveled back in time, but have traveled back to the meeting time and place in a parallel universe.[56]

There is a great deal of observable evidence for time dilation in special relativity[57] and gravitational time dilation in general relativity,[58][59][60] for example in the famous and easy-to-replicate observation of atmospheric muon decay.[61][62][63] The theory of relativity states that the speed of light is invariant for all observers in any frame of reference; that is, it is always the same. Time dilation is a direct consequence of the invariance of the speed of light.[63] Time dilation may be regarded in a limited sense as "time travel into the future": a person may use time dilation so that a small amount of proper time passes for them, while a large amount of proper time passes elsewhere. This can be achieved by traveling at relativistic speeds or through the effects of gravity.[64]

For two identical clocks moving relative to each other without accelerating, each clock measures the other to be ticking slower. This is possible due to the relativity of simultaneity. However, the symmetry is broken if one clock accelerates, allowing for less proper time to pass for one clock than the other. The twin paradox describes this: one twin remains on Earth, while the other undergoes acceleration to relativistic speed as they travel into space, turn around, and travel back to Earth; the traveling twin ages less than the twin who stayed on Earth, because of the time dilation experienced during their acceleration. General relativity treats the effects of acceleration and the effects of gravity as equivalent, and shows that time dilation also occurs in gravity wells, with a clock deeper in the well ticking more slowly; this effect is taken into account when calibrating the clocks on the satellites of the Global Positioning System, and it could lead to significant differences in rates of aging for observers at different distances from a large gravity well such as a black hole.[24]:33130

A time machine that utilizes this principle might be, for instance, a spherical shell with a diameter of 5 meters and the mass of Jupiter. A person at its center will travel forward in time at a rate four times that of distant observers. Squeezing the mass of a large planet into such a small structure is not expected to be within humanity's technological capabilities in the near future.[24]:76140 With current technologies, it is only possible to cause a human traveler to age less than companions on Earth by a very small fraction of a second, the current record being about one-fiftieth of a second for the cosmonaut Sergei Krikalev.[65]

Philosophers have discussed the nature of time since at least the time of ancient Greece; for example, Parmenides presented the view that time is an illusion. Centuries later, Isaac Newton supported the idea of absolute time, while his contemporary Gottfried Wilhelm Leibniz maintained that time is only a relation between events and it cannot be expressed independently. The latter approach eventually gave rise to the spacetime of relativity.[66]

Many philosophers have argued that relativity implies eternalism, the idea that the past and future exist in a real sense, not only as changes that occurred or will occur to the present.[67] Philosopher of science Dean Rickles disagrees with some qualifications, but notes that "the consensus among philosophers seems to be that special and general relativity are incompatible with presentism."[68] Some philosophers view time as a dimension equal to spatial dimensions, that future events are "already there" in the same sense different places exist, and that there is no objective flow of time; however, this view is disputed.[69]

Presentism is a school of philosophy that holds that the future and the past exist only as changes that occurred or will occur to the present, and they have no real existence of their own. In this view, time travel is impossible because there is no future or past to travel to.[67] Keller and Nelson have argued that even if past and future objects do not exist, there can still be definite truths about past and future events, and thus it is possible that a future truth about a time traveler deciding to travel back to the present date could explain the time traveler's actual appearance in the present;[70] these views are contested by some authors.[71]

Presentism in classical spacetime deems that only the present exists; this is not reconcilable with special relativity, shown in the following example: Alice and Bob are simultaneous observers of event O. For Alice, some event E is simultaneous with O, but for Bob, event E is in the past or future. Therefore, Alice and Bob disagree about what exists in the present, which contradicts classical presentism. "Here-now presentism" attempts to reconcile this by only acknowledging the time and space of a single point; this is unsatisfactory because objects coming and going from the "here-now" alternate between real and unreal, in addition to the lack of a privileged "here-now" that would be the "real" present. "Relativized presentism" acknowledges that there are infinite frames of reference, each of them has a different set of simultaneous events, which makes it impossible to distinguish a single "real" present, and hence either all events in time are realblurring the difference between presentism and eternalismor each frame of reference exists in its own reality. Options for presentism in special relativity appear to be exhausted, but Gdel and others suspect presentism may be valid for some forms of general relativity.[72] Generally, the idea of absolute time and space is considered incompatible with general relativity; there is no universal truth about the absolute position of events which occur at different times, and thus no way to determine which point in space at one time is at the universal "same position" at another time,[73] and all coordinate systems are on equal footing as given by the principle of diffeomorphism invariance.[74]

A common objection to the idea of traveling back in time is put forth in the grandfather paradox or the argument of auto-infanticide.[75] If one were able to go back in time, inconsistencies and contradictions would ensue if the time traveler were to change anything; there is a contradiction if the past becomes different from the way it is.[76][77] The paradox is commonly described with a person who travels to the past and kills their own grandfather, prevents the existence of their father or mother, and therefore their own existence.[27] Philosophers question whether these paradoxes make time travel impossible. Some philosophers answer the paradoxes by arguing that it might be the case that backward time travel could be possible but that it would be impossible to actually change the past in any way,[78] an idea similar to the proposed Novikov self-consistency principle in physics.

According to the philosophical theory of compossibility, what can happen, for example in the context of time travel, must be weighed against the context of everything relating to the situation. If the past is a certain way, it's not possible for it to be any other way. What can happen when a time traveler visits the past is limited to what did happen, in order to prevent logical contradictions.[79]

The Novikov self-consistency principle, named after Igor Dmitrievich Novikov, states that any actions taken by a time traveler or by an object that travels back in time were part of history all along, and therefore it is impossible for the time traveler to "change" history in any way. The time traveler's actions may be the cause of events in their own past though, which leads to the potential for circular causation, sometimes called a predestination paradox,[80] ontological paradox,[81] or bootstrap paradox.[81][82] The term bootstrap paradox was popularized by Robert A. Heinlein's story "By His Bootstraps".[83] The Novikov self-consistency principle proposes that the local laws of physics in a region of spacetime containing time travelers cannot be any different from the local laws of physics in any other region of spacetime.[84]

The philosopher Kelley L. Ross argues in "Time Travel Paradoxes"[85] that in a scenario involving a physical object whose world-line or history forms a closed loop in time there can be a violation of the second law of thermodynamics. Ross uses "Somewhere in Time" as an example of such an ontological paradox, where a watch is given to a person, and 60 years later the same watch is brought back in time and given to the same character. Ross states that entropy of the watch will increase, and the watch carried back in time will be more worn with each repetition of its history. The second law of thermodynamics is understood by modern physicists to be a statistical law, so decreasing entropy or non-increasing entropy are not impossible, just improbable. Additionally, entropy statistically increases in systems which are isolated, so non-isolated systems, such as an object, that interact with the outside world, can become less worn and decrease in entropy, and it's possible for an object whose world-line forms a closed loop to be always in the same condition in the same point of its history.[24]:23

Daniel Greenberger and Karl Svozil proposed that quantum theory gives a model for time travel where the past must be self-consistent.[86][87]

Time travel themes in science fiction and the media can generally be grouped into three categories: immutable timeline; mutable timeline; and alternate histories, as in the interacting-many-worlds interpretation.[88][89][90] Frequently in fiction, timeline is used to refer to all physical events in history, so that in time travel stories where events can be changed, the time traveler is described as creating a new or altered timeline.[91] This usage is distinct from the use of the term timeline to refer to a type of chart that illustrates a particular series of events, and the concept is also distinct from a world line, a term from Einstein's theory of relativity which refers to the entire history of a single object.

Claims of time travel

Culture

Fiction

Science

Time perception

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Time travel - Wikipedia

Blockchain Wallet: Bitcoin on the App Store

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Blockchain Wallet: Bitcoin on the App Store

Upcoming Space Hotel to Be “Like a Small Cruise Ship”

Orion Span's proposed space hotel, the Aurora Space Station, might be ready within two years. But its cost jumped $3 million since April.

Remember to Write

Frank Bunger really wants to launch a hotel in space that’s affordable to the masses. But a future stay at his proposed Aurora Space Station keeps getting more expensive.

Bunger, founder and CEO of Orion Span, said in a new interview with the University of California that his orbital hotel will be “like a small cruise ship” where guests will take the role of citizen scientists.

“People want to feel what it’s like to be a professional astronaut. So they will spend a good part of it being citizen scientists,” said Bunger. “We want to grow food. And we’re also going to have just some fun activities. Even something as mundane as ping pong gets a lot more exciting in zero gravity because the ball goes everywhere, as does the paddle.”

Have Fun!

Bunger told the UC Berkeley newsroom that 26 people have already paid the $80,000 deposit to reserve their stay.

Now all they have to do is make it through the company’s customized and personalized training regiment, which Bunger said could take anywhere from two weeks to three months.

Oh, and they’ll also have to wait for the Aurora Space Station to actually get built and launched into space.

According to Bunger’s new interview, the company still needs to model, build, insure, test, launch, test a second time but in space, and finally book its orbital space hotel.

Call me When You Get There

All that will take years to accomplish, but Orion Span is currently in the process of raising millions of dollars to make it a reality. Bunger says he thinks they can get the orbital space station ready by 2021.

Previously, Futurism reported that a trip to the space hotel would cost only $9.5 million. Now the price has climbed up to $12.5 million for a 12-day trip, according to the new interview.

It’s no surprise that private space tourism is going to be hella expensive. But despite Bunger’s repeated statements that he wants Orion Span to drive down the cost of off-world vacations, they’ll likely remain a plaything of the rich for the foreseeable future.

READ MORE: Space dreams: Alum Frank Bunger’s quest to make space tourism a reality [Haas Newsroom]

More on space tourism: The First Luxury Hotel In Space Shows Affordable Space Tourism Is Still A Long Way Off

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Upcoming Space Hotel to Be “Like a Small Cruise Ship”

Just 41 Percent of Americans Support Advancing AI

A survey on AI development reveals that less than half of Americans are in support of the technology's advancement, worrying experts.

Split Decision

The United States is a nation divided.

In June, public opinion and data company YouGov surveyed 2,000 Americans to gauge their feelings about artificial intelligence (AI).

According to the newly released results of that survey, just 41 percent of Americans “somewhat support” or “strongly support” the advancement of AI. And experts fear that lack of consensus — combined with a lack of faith in AI developers — could prevent the tech from reaching its potential.

No Faith

YouGov conducted the survey on AI development on behalf of the University of Oxford’s Center for the Governance of AI, a research institute focused on guiding AI development in a way that maximizes the benefits for humanity while minimizing the risks.

In addition to asking whether respondents supported AI development, the survey also included questions designed to gauge their trust in various AI developers. The U.S. military and university researchers emerged as the most trusted and Facebook as the least. But according to a press release statement by Center director Allan Dafoe, there “is no organisation that is highly trusted to develop AI in the public interest.”

Win Them Over

With less than half of Americans in favor of AI development and no single organization emerging as a trusted leader in the field, the AI community could have a tough time drumming up the support it needs to realize AI’s potential

“It’s in the public interest to build AI well, but everyone has to be convinced,” Dafoe told Axios. “Consensus isn’t there, and there’s a real risk that there could be a political backlash against the development and deployment of AI.”

As he noted in the news release, “The public’s support for the development of AI cannot be taken for granted.”

READ MORE: America Is Split Over Advancing Artificial Intelligence [Axios]

More on AI: To Build Trust in Artificial Intelligence, IBM Wants Developers to Prove Their Algorithms Are Fair

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Former Senator Wants Congress to Listen to UFO Reports

In a public radio interview, former Senate Majority Leader Harry Reid called on Congress to spend more time listening to reports of unidentified aircraft.

Black Money

It’s been just over a year since the U.S. Defense Department officially declassified two videos that showed an encounter between two Navy F/A-18F fighter jets and an unidentified flying object (UFO).

Now, former Senate Majority Leader Harry Reid (D-NV) — a longtime proponent of UFO research — is calling on Congress to review reports like the Navy encounter, which the Defense Department has collected for years as part of a program dubbed “Black Money.”

“I personally don’t know if there exist little green men,” Reid told KNPR. “I kind of doubt that, but I do believe the information we have indicates we should do a lot more study.”

Alien Stigma

The interview took place, Reid said, just before a scheduled call with a Senator to discuss ways for Congress to listen to the Black Money reports.

But also to take them seriously. “What we found in the past is that these pilots, when they see something strange like this, they’re prone not to report it for fear that the bosses will think something’s wrong with them, and they don’t get the promotion,” Reid told KNPR. “So, many, many times they don’t say a word to anybody about these strange things.”

After all, one of the biggest reasons these sightings never actually surfaced or reported by service members is the stigma surrounding the subject of aliens and UFOs.

Reid may have retired back in 2017, but he still has powerful connections inside Congress. Service members deserve, he believes, to have their voices heard.

“Frankly, I think the federal government has done almost nothing to help us with this,” Reid said.

READ MORE: Harry Reid pushing for more UFO research [Roll Call]

More on UFOs: You’re Not Crazy if You Believe in UFOs. Let’s Discuss in Scientific Terms.

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Google Brain Built a Translator so AI Can Explain Itself

Show Your Work

A Google Brain scientist built a tool that can help artificial intelligence systems explain how they arrived at their conclusions — a notoriously tricky task for machine learning algorithms.

The tool, called Testing with Concept Activation Vectors or TCAV for short, can be plugged into machine learning algorithms to suss out how much they weighted different factors or types of data before churning out results, Quanta Magazine reports.

Transparency

Tools like TCAV are in high demand as AI finds itself under greater scrutiny for the racial and gender bias that plagues artificial intelligence and the training data used to develop it.

With TCAV, people using a facial recognition algorithm would be able to determine how much it factored in race when, say, matching up people against a database of known criminals or evaluating their job applications. This way, people will have the choice to question, reject, and maybe even fix a neural network’s conclusions rather than blindly trusting the machine to be objective and fair.

Good Enough!

Google Brain scientist Been Kim told Quanta that she doesn’t need a tool that can totally explain AI’s decision-making process. Rather, it’s good enough for now to have something that can flag potential issues and give humans insight into where something may have gone wrong.

She likened the concept to reading the warning labels on a chainsaw before cutting down a tree.

“Now, I don’t fully understand how the chain saw works,” Kim told Quanta. “But the manual says, ‘These are the things you need to be careful of, so as to not cut your finger. So, given this manual, I’d much rather use the chainsaw than a handsaw, which is easier to understand but would make me spend five hours cutting down the tree.”

READ MORE: A New Approach to Understanding How Machines Think [Quanta Magazine]

More on algorithmic bias: To Build Trust In Artificial Intelligence, IBM Wants Developers To Prove Their Algorithms Are Fair

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Universal Internet Access Is at Least 30 Years Away, Say Experts

Experts predict we won't reach universal internet access until 2050, leaving many people in low-income regions without this basic human right.

Right Denied

In 2016, the United Nations declared that access to the internet is a human right — it affords a person the ability to express their opinion, access information, and communicate with the rest of the world.

In December, the planet hit an important milestone when news broke that 50 percent of the global population had internet access. But according to experts, getting the other 50 percent online is going to be more difficult and could take decades — further marginalizing some of the world’s most vulnerable populations.

Out of Reach

The U.N. defines universal internet access as getting 90 percent of the global population online, and according to a newly published piece by The Guardian, some experts think we won’t reach that milestone for at least another 30 years.

“Given the recent declining levels of growth in internet use and high costs of internet access to significant levels of low-income populations around the world, it is possible that we will only reach universal access in 2050 or later,” Sonia Jorge, executive director of the Alliance for Affordable Internet, told The Guardian.

“If there is any kind of faltering in the rate of people coming online, which it appears that there is, then we’ll have a real challenge in getting 70 [percent], 80 [percent] or 90 [percent] connected,” added Adrian Lovett, CEO of the World Wide Web Foundation.

Moonshots

A number of high-profile organizations are now trying to reach 100 percent connectivity in one fell swoop — Elon Musk’s SpaceX thinks its Starlink satellite constellation could do the trick, while Google believes a network of stratospheric balloons could beam the internet to all corners of the globe.

But according to Lovett, we can’t just hope that one of these plans works — we need to be proactive in spreading internet access.

“There should be no complacency that we will somehow magically progress towards everyone being online,” he told The Guardian. “If you are not connected when the majority of your fellow citizens in the world are, you become marginalised in a way that could be more dire and more challenging than perhaps anything we’ve seen before.”

READ MORE: Universal Internet Access Unlikely Until at Least 2050, Experts Say [The Guardian]

More on universal access: There’s a Growing Movement to Give Everyone in the World Internet Access

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Universal Internet Access Is at Least 30 Years Away, Say Experts

Astronomers May Have Just Spotted the Birth of a Black Hole

For the first time, astronomers observed the birth of a new, ultra-dense stellar corpse that could be either a black hole or a neutron star.

Rest in Peace

For the first time, astronomers have spotted the ultra-dense core of a star in its explosive death throes — and it might be turning into a new black hole.

On June 17, scientists at the Keck Observatory in Hawaii spotted an incredibly-bright stellar explosion, many times brighter than a supernova, that they nicknamed “the Cow.”

Now, further study has revealed that the Cow resulted in either an ultra-dense neutron star or a brand-new black hole — and in either case, spotting the cosmic event is a world first for Earthling scientists.

Welcome to the World!

According to Keck Observatory astronomers who spoke to The Verge about their work, which will soon be published in Astrophysical Journal, the massive explosion is a sign that a massive, dying star cast away its outer layers to leave behind a massive, dense core.

Regardless of whether it’s a black hole or neutron star, the Keck astronomers hope to measure how the new object grows, rotates, and changes over time.

“We’ve seen isolated neutron stars, neutron stars crashing into each other, and we’ve seen material falling into black holes,” physicist Duncan Brown, who didn’t work on the Keck research, told The Verge. “This observation could very well be these things being born. That’s pretty cool.”

READ MORE: For the first time, astronomers see the signatures of a newly birthed black hole or neutron star [The Verge]

More on stellar births: Ultra-Detailed New Image of Nearby Galaxy Shows Stars Being Born

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MIT Is Pouring Resources Into Commercializing Fusion Power

A collaboration between MIT and two energy companies is encouraging interdisciplinary research to fast-track the development of practical fusion power.

Fusion Power

A collaboration between the Massachusetts Institute of Technology and two energy companies is encouraging interdisciplinary research to fast-track the development of practical fusion power.

Mechanical engineer Caroline Sorensen told an MIT blogger about her work on a “liquid immersion blanket,” which is a pool of molten salt that converts fusion reactions into heat and protects the rest of the reactor from damage.

“I’m working on the blanket because for me that’s where the rubber meets the road,” Sorenson said. “We need to figure out this kind of technology in order to make fusion plants functional and economical.”

Interdisciplinary Research

MIT’s Plasma Science and Fusion Center is working with a private company called Commonwealth Fusion Systems to “carry out rapid, staged research leading to a new generation of fusion experiments and power plants based on advances in high-temperature superconductors,” according to the institute. The work is funded in part by an Italian energy company called Eni, which contributed $50 million.

Many researchers at the project are nuclear engineers and plasma physicists, according to the MIT blog post, but its leadership is also working to draw in specialists in other disciplines, like Sorenson.

“There are a lot of cool things to be done from a technical perspective,” Sorenson said. “Plus this work holds the possibility of making a huge impact on the world. This is exactly the kind of project that I came to MIT hoping to find.”

READ MORE: Tapping the MIT talent pool for the future of fusion [MIT]

More on fusion power: Experts: United States Should Build a Prototype Fusion Power Plant

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DARPA Wants to Build Conscious Robots Using Insect Brains

The Pentagon's emerging technologies unit put out a call last week for proposals that use insect brains to control robots.

Insect Brains

The Pentagon’s emerging technologies unit put out a call last week for proposals that use insect brains to control robots — because they could be used to create efficient new models for artificial intelligence, but also because they could be used to explore the meaning of consciousness.

“Nature has forced on these small insects drastic miniaturization and energy efficiency, some having only a few hundred neurons in a compact form-factor, while maintaining basic functionality,” reads a document in the proposal. “Furthermore, these organisms are possibly able to display increased subjectivity of experience.” It goes on to say that there’s evidence suggesting that “even small insects have subjective experiences, the first step towards a concept of ‘consciousness.'”

Bug Hunt

The Defense Advanced Research Projects Agency (DARPA) is famed for funding projects that led to the early internet. But it’s also a well-funded research arm for the U.S. military — and one of its key areas of interest, according to a riveting Atlantic feature this past autumn, is to create brain-computer interfaces that can “program soldiers’ brains.”

The feature suggested broad interest at DARPA in technologies that bridge the gap between computers and the brains of humans and animals.

“They could inject memory using the precise neural codes for certain skills,” Justin Sanchez, who directs work at DARPA about research on healing the mind and body, told the magazine about a project that had transplanted memories into the brains of rats. “If I know the neural codes in one individual, could I give that neural code to another person? I think you could.”

Moon Shot

DARPA is offering $1 million to the company it awards the insect brain proposal to. First the winning bidder will need to complete a feasibility study on mapping an insect’s central intelligence system. Then it will need to create a “proof of concept” platform that uses the insect brain architecture to create “more capable AI hardware.”

It sounds like a long shot — at least for now. But it’s another sign that DARPA is deeply interested in the mysteries of cognition and consciousness.

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Surprise Announcement: SpaceX to Lay off 10 Percent of Workforce

SpaceX said Friday that it plans to lay off 10 percent of its workforce — an eyebrow-raising move for a company emerging from a record-shattering year.

Fire Booster

Spacetech venture SpaceX said Friday that it plans to lay off 10 percent of its workforce — an eyebrow-raising move for a company emerging from a record-shattering year.

“To continue delivering for our customers and to succeed in developing interplanetary spacecraft and a global space-based Internet, SpaceX must become a leaner company,” a company spokesperson said in a statement that called the layoffs a “strategic realignment.”

Inflection Point

Space News reports that the layoffs are the first major workforce reduction since the company was founded in 2002, though it did fire a number of workers in 2014. This time, SpaceX is blaming the layoffs on an ambitious slate of projects.

“To continue delivering for our customers and to succeed in developing interplanetary spacecraft and a global space-based Internet, SpaceX must become a leaner company,” the company said, in reference to its Starship, Super Heavy, and Starlink constellation projects. “Either of these developments, even when attempted separately, have bankrupted other organizations.”

Brighter Tomorrow

The move comes just a day after CEO Elon Musk showed off the company’s recently-assembled Starship space vehicle, and a month before the company plans to test its  commercial crew launch vehicle in preparation for launching humans to the International Space Station.

But so far, the enigmatic CEO has yet to tweet about the layoffs.

READ MORE: SpaceX cutting 10 percent of its staff to become a leaner company [Ars Technica]

More on Elon Musk: Elon Musk Wanders Tesla Factory, Firing Workers in Wild Mood Swings

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Surprise Announcement: SpaceX to Lay off 10 Percent of Workforce

One of the Closest Exoplanets to Earth Could Support Alien Life

Barnard's Star b, a nearby exoplanet, could have 'life zones' under its frigid surface, according to a team of astrophysicists.

Icy Home

The exoplanet Barnard’s Star b might be frigid, but that doesn’t mean it couldn’t support life.

At least, that’s the claim of a team of astrophysicists from Villanova University. They say that while the surface temperature of Barnard’s Star b — the second-closest known exoplanet to Earth — is likely  around -170 degrees Celsius (-274 degrees Fahrenheit), it could still host primitive life — as long at it has the right kind of core.

Life Zones

The scientists presented their research during a press conference on Thursday at a meeting of the American Astronomy Society (AAS). They claim that a large, hot iron core could allow the planet to host life despite its frigid surface temperature.

“Geothermal heating could support ‘life zones’ under its surface, akin to subsurface lakes found in Antarctica,” researcher Edward Guinan said in a press release. “We note that the surface temperature on Jupiter’s icy moon Europa is similar to Barnard b but, because of tidal heating, Europa probably has liquid oceans under its icy surface.”

Looking Up

The researchers are hopeful that future telescopes, such as the James Webb Space Telescope, will provided astrophysicists with a better look at Barnard’s Star b.

“Such observations will shed light on the nature of the planet’s atmosphere, surface, and potential habitability,” Guinan said.

Right now, the launch of the Webb is scheduled for 2021, so we might not have to wait too long to find out whether the exoplanet in our galactic backyard is home to life.

READ MORE: Conditions for Life Might Exist on the New Planet Discovered Around Barnard’s Star [Discover]

More on Barnard’s Star: Scientists Just Discovered the Second-Closest Exoplanet to Earth

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A Black Hole Inhaled a Star. Then It Started to Shrink

What happened next was weird, even by the standards of super-dense celestial objects from which not even light can escape: the black hole started to shrink.

Death Star

This past March, a NASA instrument on the International Space Station spotted a black hole, about 10,000 light-years away from Earth, in the process of devouring a star.

What happened next was weird, even by the standards of super-dense celestial objects from which not even light can escape: the black hole started to shrink.

Honey, I Shrunk The Black Holes

According to an MIT blog post about the finding, which was described in a recent paper in the journal Nature, the size of the black hole’s corona — that’s the ring of particles that surrounds its mouth — turned into a ghost of its former self.

It started with the length of about the width of Massachusetts, according to MIT, and ended up at about ten kilometers — the length of a moderate footrace. Bear in mind that this space monster weighs ten times as much as the Sun and was in the process of inhaling an entire star.

Corona Light

Jack Steiner, a research scientist in MIT’s Kavli Institute for Astrophysics and Space Research, told the MIT blogger that the observation is a major new finding in the nascent study of black holes.

“This is the first time that we’ve seen this kind of evidence that it’s the corona shrinking during this particular phase of outburst evolution,” Steiner said. “The corona is still pretty mysterious, and we still have a loose understanding of what it is. But we now have evidence that the thing that’s evolving in the system is the structure of the corona itself.”

READ MORE: NASA telescope spotted a black hole shrinking after it devoured a nearby star [Business Insider]

More on black holes: Physicist: Black Holes Could Be Portals for Hyperspace Travel

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A Black Hole Inhaled a Star. Then It Started to Shrink

Denmark Is Building Nine Gigantic Artificial Islands

Authorities in Denmark plan to build nine artificial islands off the coast of Copenhagen — a futuristic hub for sustainable business and commerce.

New Islands

Authorities in Denmark plan to build nine artificial islands off the coast of Copenhagen with a total area of more than 32 million square feet (3 million square meters.) The hope is that the new islands, which will be called “Holmene,” will become a futuristic hub for sustainable business and commerce.

“I think this could become a sort of European Silicon Valley,” said Brian Mikkelsen, the head of the Danish chamber of commerce, in an interview with The Guardian.

Plug and Chug

The artificial islands will be built with surplus soil from construction projects in the area — a flabbergasting 900 million cubic feet (26 million cubic meters) of material, according to New Atlas.

The vast undertaking is scheduled to kick off in 2022, with the first island being operational in about six years. On the current schedule, the entire project will be completed around 2040.

Green Space

The project will be built with reefs and islets to support wildlife, along with wind turbines for power generation.

Architectural consultant Arne Cermak Nielsen, who’s working on the project with firm Urban Power, told New Atlas that “the islands can be thematically developed, leaving the best conditions for the innovative industry and research within green tech, bio tech, life science and future yet unknown sectors. The quality of being by the water should not be underestimated, and the shores of the islands and the delta that emerge between them has a unique potential.”

READ MORE: Denmark embarks on ambitious plan to create new islands off Copenhagen coast [New Atlas]

More on artificial islands: China Just Released a Vessel That Creates Artificial Islands

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Scientists Are Building a Quantum Computer That “Acts Like a Brain”

A new research project aims to harness the power of the quantum computer to build a new type of neural network that

Quantum Computer

A new research project aims to harness the power of quantum computers to build a new type of neural network — work the researchers say could usher in the next generation of artificial intelligence.

“My colleagues and I instead hope to build the first dedicated neural network computer, using the latest ‘quantum’ technology rather than AI software,” wrote Michael Hartmann, a professor at Heriot-Watt University who’s leading the research, in a new essay for The Conversation. “By combining these two branches of computing, we hope to produce a breakthrough which leads to AI that operates at unprecedented speed, automatically making very complex decisions in a very short time.”

Brain Game

A neural network is a type of machine learning algorithm loosely modeled on a biological brain, which learns from examples in order to deal with new inputs. Quantum computers take advantage of subatomic particles that can exist in more than one state at a time to circumvent the limitations of old-fashioned binary computers.

By combining the two, Hartmann believes, his team will be able to jump-start a new era in AI research that could manage extraordinarily complex problems like directing traffic flow for an entire city in real-time.

 “Most Important Technology”

To date, quantum computers have struggled to solve problems that are a piece of cake for classical computers. But if they start to pull ahead, Hartmann and his team want to be prepared to leverage them for the next epoch of AI systems.

“To put the technology to its full use will involve creating larger devices, a process that may take ten years or more as many technical details need to be very precisely controlled to avoid computational errors,” Hartmann wrote. “But once we have shown that quantum neural networks can be more powerful than classical AI software in a real world application, it would very quickly become some of the most important technology out there.”

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Scientists Are Building a Quantum Computer That “Acts Like a Brain”

Scientists: Warming Oceans Will Lead to “Catastrophic” Future

A new study in the journal Science has found that climate change is warming oceans far faster than experts had previously predicted.

Climate Report

A new study in the journal Science has found that the Earth’s oceans are warming far faster than experts had previously predicted, leading to a bleak outlook among climate scientists who say the rapid environmental shifts will lead to international disputes, humanitarian crises and deadly freak weather events.

The New York Times, for instance, summarized researchers’ view of the findings as “catastrophic.”

“It’s spilling over far beyond just fish, it’s turned into trade wars,” Rutgers professor Malin Pinsky told the newspaper. “It’s turned into diplomatic disputes. It’s led to a breakdown in international relations in some cases.”

Warming Oceans

As the greenhouse effect has intensified, according to the new research, the oceans have born the brunt of global warming. Readings suggest that 2018 will be the hottest year on record for the planet’s seas, replacing 2017 and 2016 before it.

The effects for weather patterns and marine life are dire, experts warn — and food shortages and displacement will leak into geopolitics long before we scorch life above the waterline as well.

“If the ocean wasn’t absorbing as much heat, the surface of the land would heat up much faster than it is right now,” Pinsky told the Times. “In fact, the ocean is saving us from massive warming right now.”

READ MORE: Ocean Warming Is Accelerating Faster Than Thought, New Research Finds [The New York Times]

More on climate change: Scientists Want to Fight Climate Change by Dimming the Sun

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New Technique Makes Electricity-Producing Bacteria More Useful Than Ever

Electricity producing bacteria may one day play a big roll in producing the Earths energy

Germ Power

Deeps in mines, at the bottom of lakes, and even in your own gut, bacteria are hard at work producing electricity in order to survive in environments low in oxygen. These potent little power producers have been used in speculative experiments and one day may power everything from batteries to “biohomes.

There are many types of bacteria capable of producing electricity but some are better at it than others. The trouble with these bacteria is that they are difficult and expensive to grow in a lab setting, slowing down our ability to develop new technologies with them. A new technique developed by MIT engineers makes sorting and identifying electricity-producing bacteria easier than ever before which may make them more readily available for us in technological applications.

Dielectrophoresis who?

Electricity-producing bacteria are able to pull off the trick by producing electrons within their cells and releasing them through tiny channels in their cell membranes in a process called extracellular electron transfer, or EET. Current processes for identifying the electricity producing capabilities of bacteria involved measuring the activity of EET proteins but this is a daunting and time consuming process.

Researchers sometimes use a process called dielectrophoresis to separate two kinds of bacteria based on their electrical properties. They can use this process to differentiate between two different kinds of cells, such as cells from a frog and cells from a bird. But the MIT team’s study separated cells based on a much more minute difference, their ability to produce electricity. By applying small voltages to bacteria strains in an hourglass-shaped microfluidic channel the team was able to separate and measure the different kinds of closely related cells.

Amped Up

By noting the voltage required to manipulate bacteria and recording the cell’s size researchers were able to calculate each bacteria’s polarizability — how easy it is for a cell to produce electricity in an electric field. Their study concluded that bacteria with a higher polarizability were also more active electricity producers.

Next the team will begin testing bacteria already thought to be strong candidates for future power production. If their observations on polarizability hold true for these other bacteria, this new technique could make electricity-producing bacteria more accessible than ever before.

READ MORE: Technique identifies electricity-producing bacteria [MIT News]

More on power-producing bacteria: Living Ink Solar Panels Could Power Small Devices

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Researchers Found the Blueprint for Plant Immune Systems

Washington State University researchers studied plants to determine the blueprints for their immune system

Botany Bug

Even plants need to fend off infectious agents, now we know exactly how they do it.

Researchers from Washington State University have discovered how plants respond to disease-causing organisms and how they protect themselves. The results of their research, published in the journal Plant Physiology, could have major impacts on the way we breed plants to have resistances to certain diseases or pests.

Energy and Alarm

The key to plant immune system responses rests in ATP, adenosine 5-triphospate. Not only is ATP an essential part of cellular biology and metabolism inside of cells, the complex organic chemical may also act as a warning messenger outside of cells in plants. When ATP is outside of plant cells it behaves very differently than usual and becomes a sort of warning alarm, triggering the plants immune system response.

Mapping the ATP pathways in plants is no easy task. To do, the team would trigger an immune response in plants in order to trace the signal’s path all the way to chemical receptors.

“It was like following a single noodle in a huge bowl full of them,”said Jeremy Jewell, lead author of the study, “Extra-cellular ATP turns on defense responses partly through these major defense pathways, and partly independently of them, but all these strands work together.

Sick Schematic

Better understanding how plants defend themselves from disease will be particularly helpful for researchers and farmers trying to grow plants which are resistant to certain types of diseases or pests. Having the blueprint for plant defenses takes some of the guesswork out of this kind of research. WSU David Gang compared the process to fixing your car.

“If your car isn’t working right, you often have to take it to a mechanic because cars are so complex now,” he said. “They plug the car into a sensor and can see the problem quickly. If I did it, I’d have to guess and hope I get it right. That’s how traditional breeding is, much of their work is challenging because they have to work with so many complex potential solutions. Now they’ll have a schematic to eliminate a lot of that extensive effort.”

READ MORE: Blueprint for plant immune response found [Phys.org]

More on Plant Biology: Scientists Are Gene-Hacking Plants to Make Them Enormous

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