John Collison

We hired extremely slowly at the beginning. It took us a year to get to four people. It's hard to hire as a very small company, and we wanted to make sure we found people who cared a lot about what Stripe was doing.

One of the really fascinating areas is marketplaces that take advantage of mobile devices. Ridesharing is the obvious example, but that's just the start of it, of selling goods and services with lightweight mobile apps.

It is only when you watch the dense mass of thousands of ants, crowded together around the Hill, blackening the ground, that you begin to see the whole beast, and now you observe it thinking, planning, calculating. It is an intelligence, a kind of live computer, with crawling bits for its wits.