I've actually made a prediction that within 30 years a majority of new cars made in the United States will be electric. And I don't mean hybrid, I mean fully electric.

America is the spirit of human exploration distilled.

I'm extremely confident that solar will be at least a plurality of power, and most likely a majority... in less than 20 years.

You could power the entire United States with about 150 to 200 square kilometers of solar panels, the entire United States. Take a corner of Utah... there's not much going on there, I've been there. There's not even radio stations.

We have a strict 'no a-hole policy' at SpaceX. And we fire people they are. I mean, we give them a little bit of warning. But if they continue to be an a-hole, then they're fired.

I'd like to dial it back 5% or 10% and try to have a vacation that's not just e-mail with a view.

Land on Mars, a round-trip ticket - half a million dollars. It can be done.