With artificial intelligence we are summoning the demon.

I think long term you can see Tesla establishing factories in Europe, in other parts of the U.S. and in Asia.

You could warm Mars up, over time, with greenhouse gases.

My background educationally is physics and economics, and I grew up in sort of an engineering environment - my father is an electromechanical engineer. And so there were lots of engineery things around me.

The space shuttle was often used as an example of why you shouldn't even attempt to make something reusable. But one failed experiment does not invalidate the greater goal. If that was the case, we'd never have had the light bulb.

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.

If humanity doesn't land on Mars in my lifetime, I would be very disappointed.