We could definitely make a flying car - but that's not the hard part. The hard part is, how do you make a flying car that's super safe and quiet? Because if it's a howler, you're going to make people very unhappy.

It is definitely true that the fundamental enabling technology for electric cars is lithium-ion as a cell chemistry technology. In the absence of that, I don't think it's possible to make an electric car that is competitive with a gasoline car.

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better. I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

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 think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.