When I was in college, I wanted to be involved in things that would change the world.

Even if there's a zombie apocalypse, you'll still be able to travel using the Tesla Supercharging system.

What I'm trying to do is to maximise the probability of the future being 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.

People work better when they know what the goal is and why. It is important that people look forward to coming to work in the morning and enjoy working.

And we need things in life that are exciting and inspiring. It can't just be about solving some awful problem. There have to be reasons to get up in the morning.

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