Peter Thiel on Elon Musk: “When Elon was building Tesla and SpaceX in the 2000s, people—even PayPal alumni—thought he was really crazy. We planned a book where his chapter was titled ‘The Man Who Knew Nothing About Risk.’ If one succeeded, you’d call it luck. But when both harebrained ideas triumph, you have to reassess: Maybe the rest of us are too risk-averse, or Elon knows something about risk we don’t.”