Burning Man is a 50,000-person event in the middle of the desert filled with music, strange outfits and drugs. It's also a favorite event for many important people in Silicon Valley: CEOs Elon Musk, Jeff Bezos, and Larry Page have all attended. Mark Zuckerberg helicoptered in once, too. Now, some of the tech elite have decided they don't want to fry in a normal tent without air conditioning.