If anyone thinks they'd rather be in a different part of history, they're probably not a very good student of history. Life sucked in the old days. People knew very little, and you were likely to die at a young age of some horrible disease. You'd probably have no teeth by now. It would be particularly awful if you were a woman.

It's really incumbent upon us as life's agents to extend life to another planet. I think that being a multi-planet species will significantly increase the richness and scope of the human experience.

We need to be super careful with AI. Potentially more dangerous than nukes.

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

The only reason I was able to accomplish things is the great people willing to work with me. A company is a group of people organized to create a product or service, and that product or service is only as good as the people in the company - and how excited they are about creating it. I do want to recognize a ton of super-talented people. Without them, I would have accomplished very little. I just happen to be the face of the companies.

Persistence is very important. You should not give up unless you are forced to give up.

I tend to approach things from a physics framework. And physics teaches you to reason from first principles rather than by analogy.