It's a fixer-upper of a planet but we could make it work.

A battery by definition is a collection of cells. So the cell is a little can of chemicals. And the challenge is taking a very high-energy cell, and a large number of them, and combining them safely into a large battery.

It's important that we attempt to extend life beyond Earth now. It is the first time in the four billion-year history of Earth that it's been possible, and that window could be open for a long time - hopefully it is - or it could be open for a short time. We should err on the side of caution and do something now.

I think it matters whether someone has a good heart.

Selling an electric sports car creates an opportunity to fundamentally change the way America drives.

Actively seek out and listen carefully to negative feedback.

I'm extremely confident that solar will be at least a plurality of power, and most likely a majority... in less than 20 years.