There are some important differences between me and Tony Stark, like I have five kids, so I spend more time going to Disneyland than parties.

I've been to Disneyland, like, 10 times. I'm getting really tired of Disneyland.

I like the word 'autopilot' more than I like the word 'self-driving.' 'Self-driving' sounds like it's going to do something you don't want it to do. 'Autopilot' is a good thing to have in planes, and we should have it in cars.

I don't spend my time pontificating about high-concept things; I spend my time solving engineering and manufacturing problems.

Some people don't like change, but you need to embrace change if the alternative is disaster.

My vision is for a fully reusable rocket transport system between Earth and Mars that is able to re-fuel on Mars - this is very important - so you don't have to carry the return fuel when you go there.