One night, a twin-engine puddle jumper was flying somewhere above New Jersey. There were five people on board: the pilot, Michael Jordan, Bill Gates, the Dali Lama, and a hippie. Suddenly, an illegal oxygen generator exploded loudly in the luggage compartment, and the passenger cabin began to fill with smoke. The cockpit door opened, and the pilot burst into the compartment. “Gentlemen,” he began, “I have good news and bad news. The bad news is that we're about to crash. The good news is...