Hours before his company, SpaceX, was set to launch a rocket to the International Space Station, Elon Musk gave thousands of eager fans the chance to pick his brain in a Reddit "Ask Me Anything" interview.

(Today's SpaceX flight was scrubbed due to rocket trouble. Musk said they'll try again Friday at 5 a.m. ET.)

During the interview, no topic was off limits, as Musk addressed everything from his favorite food and drink to his plan to send humans to Mars.

Here's what we learned:

Food and Drink

When inviting the billionaire futurist to a party, be sure to offer him whiskey, his drink of choice. The South African-born Musk also likes French food and BBQ.

Artificial Intelligence

Musk has already warned that machines with artificial intelligence may one day be more dangerous than nuclear weapons, however he doesn't believe we're set for a robot war just yet.

"The timeframe is not immediate, but we should be concerned," he wrote. "There needs to be a lot more work on AI safety."

Mission to Mars

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Elon Musk Reveals He Likes Robots and Whiskey