Patrick Smith, the author of Cockpit Confidential, answers every question we can throw at him about what really happens up in the air. Just don't get him started on pilotless planes -- or whether the autopilot is actually doing the flying.

Our Self-Improvement Month concludes with a man whose entire life and career are one big pile of self-improvement. Nutrition? Check. Bizarre physical activities? Check. Working less and earning more? Check. Tim Ferriss, creator of the Four-Hour universe, may at first glance look like a charlatan, but it seems more likely that he's a wizard -- and the kind of self-improvement ally we all want on our side.