Pierre Omidyar

Technologists come at a problem from the point of view that the system is working a certain way, and if I engage in that system and actually change the rules of the system, I can make it work a different way.

What a piece of garbage this smart car is. There's a commercial - the smart car has zero percent interest for six years. Well, good, I got zero percent in six years in buying this smart car. I'll tell you that much. I mean, it's ridiculous. My buddy has a smart car, totaled it. He hit a deer tick.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.