While it’s hard to imagine now, when we started Google Maps, people thought that our goal of mapping the entire world, including photographing every street, would prove impossible. So if the past is any indicator of our future, today’s big bets won’t seem so wild in a few years’ time. These are some of the principles that I think are important, and there are more in the pages that follow. Hopefully you can take these ideas and do some impossible things of your own!