American government is not dominated by engineers, it is dominated by lawyers. Engineers are interested in substance and building things; lawyers are interested in process and rights and getting the ideology correctly blended. And so there is sort of no really concrete plan for the future.

One of the reasons I think people are increasingly nervous about U.S. debt is because they think that we are not actually digging ourselves out of the hole, but instead are digging ourselves into a deeper and deeper hole and will not be able to pay it back because we're not actually creating the new technologies that will enable us to pay back and the money somehow is not really being invested in the future or in progress.

A company does better the less it pays the CEO.

I think that markets classically fail in cases where there are public goods that provide benefits that people cannot capture. The big debate is how big these public goods are, where they exist, things of that sort.

If you think your initial market might be too big, it almost certainly is.

In the U.S., we fundamentally need to do new things, which I think is harder for the government to do. And moreover, it is not something our government actually is inclined to particularly do.

What valuable company is nobody building?