"Move fast, break things" is great when you want to create a social networking app and the worst thing that can happen is that somebody isn't reminded to congra

"Move fast, break things" is great when you want to create a social networking app and the worst thing that can happen is that somebody isn't reminded to congratulate your friends on their birthdays. With payments systems people can lose lots of real money and there are literally millions of people always looking for ways to game the system - that's why regulation and moving slowly enough is a painful necessity.