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

My opinion is it's a bridge too far to go to fully autonomous cars.

Physics is a good framework for thinking. ... Boil things down to their fundamental truths and reason up from there.

You could power the entire United States with about 150 to 200 square kilometers of solar panels, the entire United States. Take a corner of Utah... there's not much going on there, I've been there. There's not even radio stations.

I'm increasingly inclined to think there should be some regulatory oversight, maybe at the national and international level just to make sure that we don't do something very foolish.

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 there are more politicians in favor of electric cars than against. There are still some that are against, and I think the reasoning for that varies depending on the person, but in some cases, they just don't believe in climate change - they think oil will last forever.