The old aphorism goes that "idle hands are the devil's playground."
Few seem to heed the spirit of this message like the founders, CEOs, and other inventive souls of the tech community.
Elon Musk famously runs SpaceX, his private rocket company, alongside Tesla, his electric car company. Two other notable technology figureheads each have their own private rocket companies as well, and you'll never guess who is trying to start a major league baseball team in Las Vegas.
In a veritable potpourri collection of folks from the tech industry, we've gathered some notable examples of the side projects that keep them busy.
Investor and entrepreneur Peter Thiel is aggressively investigating technologies that would — in theory — allow humans to literally live forever.
When he's not running Box.com, Aaron Levie is an accomplished magician practicing double-lifts and pinch vanishes.
He's probably best known for his electric car company, Tesla, but Elon Musk's SpaceX has a huge contract with NASA to help put people and cargo in orbit.
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