Monthly Archives: February 2021

Is there an angry baby neutron star in the middle of Supernova 1987A? – SYFY WIRE

Posted: February 25, 2021 at 1:19 am

Where the heck is the neutron star that should be in the middle of the debris from Supernova 1987A?

It's one of the bigger mysteries of modern astronomical times. On the night of February 23/24, 1987 (essentially 34 years ago today, so happy anniversary!) the light from an exploding star reached Earth. Dubbed Supernova 1987A, it came from the Large Magellanic Cloud, a satellite galaxy of the Milky Way just 160,000 light years away. That's close enough that the supernova was visible to the naked eye, and it became one of the most well studied astronomical objects in history*.

The star that blew up was massive, probably about 20 times the mass of the Sun. When a star like that reaches the end of its life it blows a series of powerful winds of gas that surround it. Some tens of thousands of years later the core of the star collapses, setting up an immense explosion that blasts away its outer layers: Supernova.

The collapsing core of a massive star can become either a black hole or an incredibly dense neutron star. In this case, it should've formed the latter.

Newborn neutron stars have powerful magnetic fields and spin rapidly. They blast out beams of high-energy radiation like sweep around like a lighthouse beam, which we see when they pass over us. We get blips of radiation like pulses, so these young neutron stars are called pulsars. They're usually pretty obvious (like a baby screaming on an airplane; the source isn't too tough to spot). But in this case, despite intense searches for over three decades, no neutron star has been found.

However, in the past couple of years evidence is starting to come in. A blob of radio emission was seen recently that could be from the baby neutron star, but it's not 100% certain. Now, astronomers have gone over some archived X-ray observations taken from 2012 2014 and find that they too point toward the X-rays coming from the neutron star.

X-rays are a form of light, like the light we see but with far higher energies. It takes powerful events to create them. In a young supernova they could be from the blast wave generated by the expanding debris from the explosion slamming into the gas outside it, or they could be from a seriously strong wave of particles, called the pulsar wind nebula, accelerated by the neutron star's ridiculously fierce magnetic field.

The astronomers looked at the X-ray observations from two space-based observatories, the Chandra X-ray Observatory and NuSTAR. Chandra sees relatively low energy X-rays, and NuSTAR much higher energy ones.

What they found is that the X-ray spectrum the brightness of the X-rays versus their energy from the two observatories combined showed that the low-energy X-rays were consistent with the blast wave idea. But if that were the case they'd expect very few high-energy X-rays. However the spectrum clearly shows more high-energy ones than expected.

That leans more toward the idea these X-rays are coming from the pulsar wind, which emits far more high-energy X-rays. The spectrum by itself isn't conclusive. However, we also have a grasp of what's going on physically inside the supernova, and it's much easier to match the spectrum to the physics of a pulsar wind than a blast wave. That's also not conclusive, but it gives a lot more credence to the existence of a neutron star in the middle of all that junk.

There's a way to know better too. All the dense material surrounding the center of the explosion is blocking our view somewhat. Over time that material expands and gets less dense. Like a fog clearing, that should allow more high-energy X-rays through. If we see the higher energy X-rays get brighter, that would strongly favor the pulsar wind model. If instead they get fainter that favors the blast wave idea (which should fade more rapidly over time). Hopefully future NuSTAR observations can settle this question.

We see neutron star pulsars in the centers of many supernova remnants (like the famous Crab Nebula pulsar, or the one in the Vela supernova remnant), and they are an important factor in the shaping and evolution of the rapidly expanding debris from the explosion. The gas around Supernova 1987A, blown by the star before it died, is a bit bizarre, shaped like a huge hourglass with a dense ring in the middle. The actual stellar debris is in the middle of all that, and will slam into this gas over the next few centuries.

If there's a pulsar in there, its vast stores of energy will accelerate that material in the collision like hitting the gas in a car. If we want to understand how this interaction will occur and oh my we do, since it's the closest such supernova in centuries then we need to know if there's a neutron star in the middle of all that and what's its doing to add to the chaos. Hopefully soon we'll find out.

*Three years later the newly launched Hubble Space Telescope made SN1987A one of its very first targets; I used those and subsequent observations to get my PhD in astronomy, so this topic is close to me.

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Planetary defense plan activated: astronomers appeal to observe Apophis asteroid, which will graze Earth in… – Business Insider

Posted: at 1:19 am

This is an automated machine translation of an article published by Business Insider in a different language. Machine translations can generate errors or inaccuracies; we will continue the work to improve these translations. You can find the original version here.

Astronomy wants to become a field open to the whole of society, not only to observe stars and planets but also to prevent the destruction of the planet itself due to an unplanned impact.

This is the goal of Unistellar Optics, the company that has developed the eVscope home telescope, so that, from the comfort of one's home, anyone can look up at the vast universe that looms over humanity.

In a compelling tone, the company launched a challenge to observe the trajectory of Apophis on February 21, the day it was hidden behind a star, so it could be observed; moreover, it will pass dangerously close to the Earth and the Moon by the year 2029, 2036 and 2068, the latter being the one with the highest risk of impact.

To do so, they launched the challenge of observing the "infamous" Asteroid 99942 Apophis. They wonder if it would be capable of destroying orbital satellites or directly impacting the Earth's atmosphere.

Thus, Apophis has been classified as a Potentially Hazardous Asteroid -PHA-, since, in 2029, it is expected to pass 31,860 kilometers away from the Earth's surface.

By 2029, Apophis' orbit is expected to change due to its approach to Earth and the Moon.

These predictions have been joined by the latest ones made by NASA's CNEOS center, in charge of cataloging objects at risk of impact, which has observed how this has decreased thanks to the so-called Yarkovsky effect, by which the orbit of a small object in the Solar System is modified due to the absorption of solar radiation.

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"One of the great mysteries about Apophis is how its orbit changes when the asteroid is illuminated by the Sun; this Yarkovsky effect is very difficult to simulate, so direct observation of an occultation - the asteroid passes in front of a star - will give us greater precision of the asteroid's position," explained Franck Marchis, senior astronomer at the SETI Institute (USA) and chief scientist at Unistellar, in a statement.

This effect has been observed by astronomers at the University of Hawaii (United States), who update almost daily the data on the risk probabilities, as well as the danger of a possible collision in 2068, the expected date of impact.

Observing Apophis, the "god of chaos," is a vitally important action for the Earth, as the asteroid belongs to the subgroup of those that pass dangerously close to the planet, known as Aton asteroids.

In addition, many of them are categorized as potentially hazardous and, specifically, Apophis has a diameter of 340 meters, which poses a greater risk.

Since its discovery in 2004 by Dave Tholen and astronomers at the University of Hawaii, thanks to the Subaru telescope on Maunakea, Apophis has been closely followed, including these recent changes due to the Yarkovsky effect.

Unfortunately, astronomers used the Arecibo telescope (Puerto Rico) to observe objects like these, although it was dismantled in 2020, after several technical failures in its structure.

For this reason, Unistellar asked for help from the public and, in particular, from amateur astronomers, so that no details would be missed by the official Apophis researchers.

On the other hand, although the asteroid could be observed last February 21 across the United States, help from the public is still welcome, as the risk of Apophis impact remains active for the next few years.

Only the collaboration of all the people will be able to really defend the terrestrial citizens, who have their first enemy in this asteroid, the most dangerous that has ever grazed the Earth.

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Elon Musk no longer worlds richest person as Tesla shares fall | Elon Musk | The Guardian

Posted: at 1:17 am

Elon Musk, the maverick boss of Tesla, is no longer the worlds richest person after shares in the electric car company dropped 8.6% on Monday, wiping $15.2bn (10.8bn) off his fortune.

Musk, who last month leapfrogged Amazon founder Jeff Bezos to take the title of the worlds wealthiest person, dropped back into second place with a $183bn estimated fortune behind Bezos $186.3bn.

The 8.5% drop in Teslas share price on Monday the sharpest one-day fall since September was partly fuelled by Musk tweeting that the prices of bitcoin and other cryptocurrencies do seem high. Teslas shares were down a further 6% in pre-market trading on Tuesday.

His comments came just two weeks after Tesla bought $1.5bn of bitcoin, which sent the price of the cryptocurrency to fresh highs. Bitcoin, which reached a high of $58,000 on Sunday, has since fallen to $47,500 on Tuesday morning. The price is still up more than 500% over the past year.

Replying on Twitter to Peter Schiff, a stockbroker and gold investor, Musk said: Money is just data that allows us to avoid the inconvenience of barter. That data, like all data, is subject to latency and error. The system will evolve to that which minimises both. That said, bitcoin and ethereum [another cryptocurrency] do seem high.

Scottish Mortgage Investment Trust, which is managed by Tesla shareholder Baillie Gifford, was the biggest faller on the FTSE 100 on Tuesday, down 11%. Baillie Gifford was the biggest faller on the FTSE 250, down 8%.

Musk had last week said Teslas decision to buy $1.5bn in bitcoin was a company decision not driven by him. Teslas action is not directly reflective of my opinion, Musk said, again on Twitter.

Having some bitcoin, which is simply a less dumb form of liquidity than cash, is adventurous enough for an S&P 500 company ... When fiat [government-issued] currency has negative real interest, only a fool wouldnt look elsewhere. Bitcoin is almost as bs [bullshit] as fiat money. The key word is almost.

Tesla disclosed the bitcoin holding in a filing with the US Securities and Exchange Commission last month. The company said it had updated our investment policy to provide us with more flexibility to further diversify and maximise returns to allow it to invest cash reserve in alternative reserve assets including digital assets.

It said that since the decision was approved by its audit committee it had invested an aggregate $1.5bn in bitcoin under this policy and may acquire and hold digital assets from time to time or long term.

Musk has previously helped to drive the popularity of cryptocurrencies, including bitcoin and dogecoin, by regularly tweeting that he is a supporter of the cryptocurrencies. He has also joked that bitcoin is his safeword.

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Last month, the price of bitcoin soared after Musk said he was a supporter of the cryptocurrency in an interview carried on Clubhouse, a new social media app designed for wealthy people. I do think at this point bitcoin is a good thing, he said. And, so, I am a supporter of bitcoin. Like I said, I was late to the party, but I am a supporter of bitcoin. And I think, bitcoin is really on the verge of getting broad acceptance by conventional finance people.

He has previously changed his Twitter biography to #bitcoin.

Musk also tweeted on Monday that Teslas Model Y Standard Range SUV would still be available off the menu, following reports from electric vehicle newsite Electrek that the model had been removed as an option online.

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"Give My Regards to Your Puppet Master" – Elon Musk to Washington Post Reporter

Posted: at 1:17 am

The Daily Caller reported:

Tesla CEO Elon Musk quipped back at The Washington Posts request for comment regarding an article about his future with the company, telling a reporter to give his regards to your puppet master.

The Posts piece wondered if Tesla can run on Autopilot and declared that Musk moved to Texas and embraced celebrity. The article elaborated on critics who have concerns that Musks schedule and public personality are beginning to show in the car company he runs.

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The company in question, Tesla, didnt respond to The Posts request for comment, the article notes. Musk, however, did with just one sentence presumably aimed at The Posts owner, Amazon CEO Jeff Bezos.

WaPo reporter Josh Dawsey tweeted about Musks response:

Tesla did not respond to repeated requests for comment. In response to emails seeking comment, Musk replied only: Give my regards to your puppet master. https://t.co/pGF1cr0IgP

Josh Dawsey (@jdawsey1) February 23, 2021

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Bitcoin price bobs on comments from Elon Musk and Cathie Wood – Quartz

Posted: at 1:17 am

A question that has long bedeviled bitcoin observers is how to value it. Lately the answer to its worth has been whatever influential people like Elon Musk and star stock picker Cathie Wood say it is.

The original crypto asset bounced around this month as influencers weighed in. Bitcoin shot to a record high after Tesla revealed that the electric car company had converted $1.5 billion of its cash holdings into it. Then bitcoin got sucked into a downdraft when Tesla chief Musk suggested prices seem high. Prices lurched upward again after Wood, the investing rockstar and founder of ARK Investment Management, told Bloomberg she was very positive on bitcoin and glad to see a price correction.

Woods interview came after Square said it bought $170 million worth of bitcoin this month, and reported that about half of its revenue last quarter came from bitcoin. The payment company reiterated earlier comments founder Jack Dorsey made in an interview with Quartz that crypto asset has the potential to become the internets native currency. ARK has major stakes in Tesla, Square, and bitcoin in the funds it manages.

The difficulty in valuing bitcoin is, in some ways, a strength when it comes to speculation. The original crypto asset doesnt generate cashflows, a key metric for figuring the worth of a company. It isnt linked to a government, whose currency would typically fluctuate based on interest rates, economic growth, and inflation. Bitcoin hasnt caught on as a means of payment, but it has, throughout its dozen-year history, been a speculative object extraordinaire, and theres a case to be made that bitcoins price has bobbed around based on the trajectory of its sensational story. As Nobel prize winner Robert Shiller told Quartz during an earlier bitcoin boom in 2017, big things happen if someone invents the right story and promulgates it.

Wood, whose flagship fund has soared more than 140% in the past year, is dismissive of the bitcoin pessimists and says ARK sees many uses for it. The crypto assets supply is fixed, unlike fiat currencies, and she told Bloomberg that bitcoin is an even better bulwark against inflation than gold. She pointed out that its also resistant to confiscation, as bitcoin is decentralized and transactions take place outside the banking system. Often called digital gold, we believe bitcoin not only shares many of golds characteristics but also improves upon them, ARK analyst Yassine Elmandjra wrote in June.

Much, then, may hinge on whether bitcoin, created in 2009, can earn the kind of reputation for value protection that gold has developed over millennia. On Squares Cash App alone, more than 3 million customers bought or sold bitcoin last year; in January, more than 1 million of them bought bitcoin for the first time. Tesla, Square, and MicroStrategy have committed a chunk of their companies cash holdings to bitcoin. But other CFOs may not think its such a smart idea. Naresh Aggarwal of the Association of Corporate Treasurers in London told DealBook that doing so is more like putting money on a horse race than being prudent with cash reserves.

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Elon Musk wants to remove carbon. What is he talking about? – CNET

Posted: at 1:17 am

In late January, Elon Musk said on Twitter that he'd donate $100 million toward a prize for best carbon capture technology. The announcement immediately brought attention to technologies that aren't new but remain relatively unknown.

Carbon capture at the source refers to a process where the carbon dioxide released from burning fossil fuels gets captured and stored. In carbon removal, the CO2 typically comes from the air, in what's called direct air capture, but it can also come from biomass. There are still very few companies working in the field, and the market is very small. Critics say that trying to remove carbon will always be less effective than simply transitioning to renewable energy. Proponents reply that this transition, while essential, won't be enough and that these technologies will be necessary to meet climate change reduction goals.

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Carbon is not the only greenhouse gas emission contributing to global warming, but it's the largest single one. That's why reducing its levels in the atmosphere is so important. Musk is not the only prominent supporter of these technologies. Bill Gates, who has a new book out, How to Avoid a Climate Disaster, has endorsed them as well.

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Elon Musk explains what happened to Tesla Model Y Standard Range – CNET

Posted: at 1:17 am

It's just Tesla being Tesla again.

This week brought a new Tesla mystery, after the automaker quietly removed the Model Y Standard Range from its public configurator. The move came after the model was officially available for order via the website for less than two months, and got a $2,000 price drop last week. Needless to say, we joined prospective Tesla buyers in wondering what the hell happened.

CEO Elon Musk himself provided an explanation Monday evening after a Twitter user asked the Tesla boss what's going on. In Musk's words, "it's still available off menu." If that approach sounds familiar, it's because Tesla used it with the infamous "$35,000 Model 3." After some hoopla and fanfare welcoming the affordable EV's arrival, the electric sedan disappeared from the online configurator and became available for order by phone or in person. Effectively, Tesla didn't want to sell the particular version of the Model 3. Today, it's gone altogether.

Adding more context, Musk said in the same tweet, "I don't think the range, in many drive conditions, yet meets Tesla's standard of excellence." This seems to play back into Musk's thinking last year when he announced we weren't getting a Model Y Standard Range at all. Yet, this past January, the vehicle made a surprise debut online with a 244-mile estimated range. Musk in 2020 said the Model Y Standard Range would likely sport an "unacceptably low" 250-mile range, so he was on the money with that estimate. It sounds like Musk and friends had a change of heart. Or, it's another one of Tesla's epically creative no-money-spent marketing stunts.

If you're hoping for a reprieve in the form of a cheaper Model Y Long Range RWD, Musk shot that idea down in a followup tweet saying there's "too much product complexity" in Tesla's lineup as it stands. So, if you want a cheap Model Y, pick up the phone or head to a Tesla retail store. You won't see the company making any effort to sell the $39,990 electric SUV outright.

Tesla does not operate a public relations department to field requests for comment.

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Clubhouse won over Elon Musk, now its conquering the world – HT Tech

Posted: at 1:17 am

This is awesome. I didnt even know it existed a week ago. Thats how a lot of people are reacting to Clubhouse, the social-media startup thats becoming asensation. Except in this case, the new fan was Elon Musk, who had just made his first appearance on the app, a voice-and-audio driven platform that lets people hold live discussionsbased on any number of topics and interests, with thousands sometimes in attendance. Musk was aJan. 31 gueston Good Time,a talk showco-led by a panel of venture capitalists and a Facebook Inc. tech executive.Days later, Facebook Chief Executive OfficerMark Zuckerbergmade a surprise appearance on the same program.Last month, I wrote abouthow Clubhousewas poised to become the next big social media powerhouse, citing the doubling of its weekly active user base to 2 million over a couple of weeks in January asa sign of its booming popularity.This latest wave of influential new users fromtechnology titans such as Musk and Zuckerberg topolitical figures and leaders in entertainment is driving another wave of exponential growth for Clubhouse, not only in the U.S. but around the world.

On Sunday, co-founder Paul Davison said the service reached 10 million weekly active users, which means its user base has blossomed fivefoldin a month. These numbers are all the more impressive given that the app still requires an invitation from a current user and is available only on iPhones (an Android version is planned).Davison alsonoted that overseas markets were key contributors in the companyslatest surge, with the app rocketing to the top of the App Store charts in dozens of countries. There may be profound implications.

According to mobile-app analytics research firm App Annie, Clubhouse reached No. 1atApple Inc.s App Store in more than 30 countries this year, meaning it is now a more popular download than Instagram, TikTok, Zoom or WhatsApp in those markets. It is not just one geography either: Clubhouse is doing well across cultures, be it South Korea and Japan orGermany and Italy.

What is most striking is Clubhouses success in areas with more autocratic governments across the Middle East, Central Asia and Eastern Europe. This may be an important development as it shows the tremendous thirst for open audio-based social conversation inside more authoritarian countries. In recent weeks, I have spoken withseveral users based in the Middle East. They were all extremely curious abouthow the rest of the world works while also extollingthe vibrancy of Clubhouse discussion rooms in their respective countries. One person in Saudi Arabia said there were hundreds of rooms some with thousands of participants talking about political and social issues. These kinds of live gatherings would be difficult if not impossible to hold in person.

The intimacy and back-and-forth nature of the voice-based mediumon Clubhouse may be a game-changer for political discourse. The one-on-one audio conversations fostered by the platform encouragerelationship-building in a way that text-based social networks such as Twitter and Facebook cant. And because there are no official records after discussions end, it will be more difficult for authorities to curb or censor specific topics.That may lead toeasier mobilization and coordination of new movements. In this way, its even possible that Clubhouse may finally help fulfill the promise of the Arab Spring demonstrations from a decade ago.

Thatpotential hasnt gone unnoticed. Earlier this month, users based in China noticed they could not access the service without using workarounds such asvirtual private networks to get around the countrys firewall. It suggests Chinahas decided to block access to Clubhouse.But asmy colleague Tim Culpan wrote, the generallycordial political discussion and sharing of viewpoints amongthousands of Chinese-speaking people around the world for a few weeks exemplified the best of what the platform could be.While similar restrictions may spring up elsewhere, Isuspect manycountries that allow Facebook and Twitter will keep the doors open for Clubhouse because of its rising popularity.

Clubhouses recent success does bring its own set of difficulties, includinggrowing pains as it builds outits infrastructure to serve its rapidly growing user base. Over the past week, the app frequently has become glitchy and unresponsive nearly every day.Davison has said the company hasslowed the development ofnew features to focus on keeping the service running and hiring new staff. And it is only a matter of time before Clubhouse will face serious trust and safety problems as it deals with the rising tide of charlatans and bad actorswho mayincreasingly try to inhabitthe platform.

I am optimistic that Clubhouse will become a platformof choice for healthier conversations compared withother social media platforms. The main problem with the traditional players such asFacebook and Twitter is that their advertising-focused business models incentivize the worst types of content. Because they generate more revenue from increased page views and ad impressions, they are more likely to turn a blind eye toconspiracy theories, harassment and misinformation that drive the most engagement on their platforms.Further, binary angry rants on Twitter and Facebook tend to getamplified over nuanced substantive discussions.

Clubhouse, on the other hand, is targeting a different model. From the beginning, the co-founders have said they wontpursue advertisingto generate revenue because it mightlower the quality of conversation and lead to bad behavior. Instead, the startup plans to pursue a transactional model whereusers can pay speakers directly through tipping, subscriptionsand event ticketing. Its the right move.

Many corners of the social-media world are toxic, especially wherepeople are able to fire off broadsides anonymously from behind their screens.But people tend to interact more politely in live conversation; Clubhouse may turn out to be the perfect antidote to the contentious climate. The startups game plan may be good for business, too. With its stunning emergence this year, Clubhouse has already become the biggest U.S. social-mediasuccess story in nine years after the Instagram, Twitter Inc. and Snap Inc. era. Theonly other new app to rival its recent ascendance is ByteDanceLtd.s TikTok which, notably,is alsoknown for its feel-good vibes. Clubhouse may surpass its U.S.-based peers over the next few years if it can truly perfect a better collegial environment on the internet.

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How Much of Warren Buffetts Empire is at Risk if Elon Musks Vision for the Future is Realized? – CleanTechnica

Posted: at 1:17 am

Warren Buffett recently invested billions into big oil with his $4.1 billion stake in Chevron, which leads us to think that he just not into clean energy any more. In 2014, he invested billions more into renewables, but one would think that if you really cared about making the world a cleaner place, youd go all-in on renewable energy. This includes Tesla.

In light of Buffetts investment, Gali Filche from Hyperchange reshared a 2017 video he made titled, Dear Mr. Buffett, Buy Tesla. Gali asked this question: How much of Warren Buffetts empire is at risk if Elon Musks vision for the future is realized?

Gali mentioned that GEICO and BNSF Railway would have to compete with self-driving trucks. Gali also concluded that 48% of Berkshire Hathaways revenue was at risk of disruption due to Tesla. After looking over Berkshire Hathaways income statement from 2017, Gali noted that the first line of that statement was insurance premium earned.

These represent about $46 billion of Berkshires $233 billion of 2016 annual revenue. Approximately 21% of the total of Berkshires sales, and of that $46 billion of insurance premiums earned, about half of them 56% to be exact were related to GEICO, whose main business is car insurance. That means, in total, about 11% of the entire revenue of Berkshire is correlated to GEICO as insurance premiums earned, Gali said. This, Gali predicted, would be an issue due to self-driving cars.

He shared a clip from CNBC of Warren Buffett himself sharing how self-driving cars could hurt GEICOs business significantly.

Self-driving cars will be adopted if theyre safer. If theyre safer, theres less in the way of insurance costs. That brings down premiums significantly. So if the day comes when a significant portion of the cars on the road are autonomous, it will hurt GEICOs business very significantly, Buffett said. Gali pointed out that Buffett may think were 10 years away from full autonomy, but this will not be the start of the impact on GEICOs business model.

We think the impact is going to start happening right now. In fact, Teslas already begun offering its own insurance product. Because of their new Autopilot features, their cars are much safer than anything else on the road. Legacy insurance companies are slow to react to this and adjust the rates. Therefore, Tesla had to step in and create their own customized insurance product to accurately reflect the risks and safety of their vehicles. Teslas vehicles are only getting safer by the day as the company continues to invest in its Autopilot and autonomous driving software, and even if the car is never fully autonomous, even partial autonomy could result in as much as 90% improvement in safety, or 10, according to Elon Musk. This would be enough to flip the entire economics of insurance on their head, Gali said in the video.

Gali also believes that GEICO is at risk of losing almost the entirety of its business as the auto insurance market shrinks during the advent of self-driving cars.

This is just one example Gali gave as to why Warren Buffett should invest in Tesla. One key fact that Gali presented in his video was that two-thirds of Berkshires energy generation of the 30,000 megawatts that the company produced in 2016 were related to coal and natural gas. So, one-third was related to renewables, which is great, and I actually want to give Buffett a lot of credit for pushing renewables in his energy companies. Although, hes done it questionably with NV Energy in Nevada, kicking out SolarCity. Gali noted that was a different story for a different time.

If you think that Teslas solar roofs and their vision of a distributed energy system will take off, then thats going to pose an immediate threat to the entirety of your utility business, or at least compete with them to lower rates, Gali explained in the video.

In a much more recent video a few days ago Gali shared his thoughts on Buffetts investment into Chevron. You know Warren Buffett someone Ive said is an idol of mine, someone Ive looked up to, Ive recommended his book, The Snowball, on this channel. Hes what got me into investing, he said at the beginning of his video.

If Warren Buffet would have spent $5 billion on TSLA when it was $300 a share pre-split, his investment would have gone up more than 10, Gali pointed out. Ive been pounding the table Warren Buffett, buy Tesla, buy Tesla, buy Tesla! This is the future. Were all going electric. Its the next great American brand. And then next thing you know, he bought Chevron.

This hurt Galis heart simply because Gali believes in value investing in the companies you believe in that will change the world, whereas it seems that Buffett is value investing just to make money. Its as if Buffett doesnt care about the impact his billions will have on the rest of us.

Gali speaks of the mindset of investors in New York and why he left. They just live on a spreadsheet, I dont give a crap what business Im buying, I just want my investment to go up the most as possible. You know, its just about me, my perspective, not about whats good for the planet, not a systems approach, not thinking about other stakeholders, and I just think thats such a wrong mentality and I think everything about Buffett buying Chevron now leans into that mentality, and thats why its so frustrating.

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Grumpy silicon and happy carbon – Chessbase News

Posted: at 1:15 am

A fortnight or so ago, my desktop computer started to get rather grumpy, making increasingly loud harrumphing sounds. A week later it began to go on strike, with the power cutting out completely, apparently at random.

Back in the day, I even once changed a disk drive in a computer, but nowadays Im rather phobic about playing with them. My wife heroically opened the case and took a (cold) hair dryer to the interior, clearing out a vast quantity of dust, but the problem persisted and the old codger its more than four years old which makes it heaven knows how ancient in human years is currently being ministered to by a nice man down the road, who has confirmed that it needs a new power supply and is testing for any other ailments.

In its absence, Im communing with an even oldercodger, my laptop, which is a nice machine but also not entirely ungrumpy (dont get me started on its wilful backspace key).Its not set up for streaming or recording and like the cats in this house not to mention me resistant to change, so theres no video version of todays column or at least wont be until I get the desktop back, with luck on Monday.

In contrast to grumpy computers, we focus today on happy people who have played nice games of chess and in particular on move selection and trusting yourself.

Playing chess is one of the few times in our lives when we are totally self-sufficientand self-reliant. Its the joy and horror of the game and of course other similar games like Go, Shogi and Draughts (Chequers) that you can take all the credit for your triumphs but have nobody else to blame for your mistakes.

Go,an abstract strategy board game invented in China

This applies to all players including children, and when Im teaching adults or kids I make a point of not telling them what types of position or openings they should play. Or rather not pressing the point. Certainly I will express an opinion, and if I think that a line is purulent nonsense then I will try gently to wean them off it.But while they are doing well with it, they should continue if they like, until they play stronger opponents who will prompt them to change their own minds.

Extreme Calculation Training

Special attention will be paid to Intermediate Moves, Quiet Moves, Sacrifices on Empty Squares, Mating Patterns, Ignoring Opponents Threat, Calculation in Defence and Method of Comparison. Plus 50 interactive examples to test your knowledge.

The same applies to move selection later on in the game. By the time that people become club players they will already have a fairly strong feeling of the moves they want to play and this will harden as they improve. For me, when Im in the zone and to work at its strongest this really means being at a chessboard faced with the danger of losing I have a visceral reaction to the choices available and normally know immediately what I want to play (or at least what I want to choose between) unless the position is very confusing. Indeed, one way I evaluate positions is by looking at the moves I want to play and seeing whether they are possible. If they seem okay, then all well and good, but if my top choices palpably lose then I may simply have a bad position.

One of the most important lessons in improving is to trust yourself (or, as I often think of it, trust your hand). If you like a move then you must check that it isnt a blunder, but you shouldnt talk yourself out of it, especially when playing stronger opponents when theres a tendency to believe that the great man or woman opposite you couldnt possibly have allowed such a strong move, so there must be something wrong with it.

So if you see a strong move and cant see a good reason not to play it then trust your hand, but equally you must look at possible refutations, and the higher the level of play the more important it is sometimes to rethink because, however good your hand, it isnt always right.

Vladimir Kramnik is one of the players who most trusts his hand, and this has led to some fantastic games, though occasionally, against really strong opponents, to disaster too. Today Im reprising one of his best games before his retirement from professionalplay, but also another game from the same tournament the Berlin Candidates of 2018 when he couldnt resist his hand and eventually lost.

Vladimir Kramnik at the 2018 Candidates in Berlin | Photo: World Chess

Im finishing with a game Ive given here before a couple of times, in which I really wanted to play a move but had a feeling of unease about it. I was right to do so and got splatted, though engines later told me that I could have got away with it.

Select an entry from the list to switch between games

Master Class Vol.11: Vladimir Kramnik

This DVD allows you to learn from the example of one of the best players in the history of chess and from the explanations of the authors (Pelletier, Marin, Mller and Reeh) how to successfully organise your games strategically, consequently how to keep y

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Grumpy silicon and happy carbon - Chessbase News

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