I get more spam than anyone I know.

I don't think you're as capable of handling lack of sleep or whatever challenges you throw at your body as you get older. However, I never missed a day of work.

In my parents I saw a model where they were really always communicating, doing things together. They were really kind of a team. I wanted some of that magic myself.

Other paths would include making nuclear fission cheap enough and safe enough that people broadly embrace it, so that could be scaled up.

I actually thought that it would be a little confusing during the same period of your life to be in one meeting when you're trying to make money, and then go to another meeting where you're giving it away. I mean is it gonna erode your ability, you know, to make money? Are you gonna somehow get confused about what you're trying to do?

Part of the magic of economic growth is how you educate people, and the leading economies have to stay in front of that. From an economic point of view, it affects competitiveness and creates jobs. Or from a social justice point of view, you can take someone in the bottom tier of income and let him compete to be a doctor or lawyer. The education system is the only reason the dream of equal opportunity has a chance of being delivered - and we're not running a good education system.

In programming when you're making a change you have to know all the affected places, and you have to be able to model in your head what the performance impact will be.