There's nothing - I've bought everything I want. I don't like yachts or anything; you know, I'm not a yacht person, and I've got pretty much the nicest plane I'd want to have.

We polled Tesla owners, do you want autopilot disabled or not. Not one person wanted it disabled. That's pretty telling.

People should pursue what they're passionate about. That will make them happier than pretty much anything else.

If you had to buy a new plane every time you flew somewhere, it would be incredibly expensive.

To make an embarrassing admission, I like video games. That's what got me into software engineering when I was a kid. I wanted to make money so I could buy a better computer to play better video games - nothing like saving the world.

You need to live in a dome initially, but over time you could terraform Mars to look like Earth and eventually walk around outside without anything on... So it's a fixer-upper of a planet.