Distribution may not matter in fictional worlds, but it matters in most. The Field of Dreams conceit is especially popular in Silicon Valley, where engineers are biased toward building cool stuff rather than selling it. But customers will not come just because you build it. You have to make this happen, and it's harder than it looks.

You want to be the last company in a category. Those are the ones that are really valuable.

Society is secretly driven by sales

For a new payment product, you always have to ask, how much better is it than the current solution? So when we started Paypal, for eBay micro merchants, it was much better than getting the 7 to 10 days process of cashing a check in the mail. When you look at stores or physical worlds, places, a lot of these places are already set up to take cash or credit card. Apple Pay may be an incremental improvement, maybe a little bit better. But when you have something that's pretty good and you go to something that's perfect, sometimes it's very hard to drive adoption because the delta is not that big.

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.

In the developed world, technological progress means that you can have a situation where there's growth, where there's a way in which everybody can be better off over time.

Now it’s either about technology that doesn’t work or about technology that’s used in bad ways. The anthology of the top twenty-five sci-fi stories in 1970 was, like, ‘Me and my friend the robot went for a walk on the moon,’ and in 2008 it was, like, ‘The galaxy is run by a fundamentalist Islamic confederacy, and there are people who are hunting planets and killing them for fun.’