Dream about the world, but start with your block. Big impact usually has a small address first.

Enormous goals are motivating and hard to act on, which is why so many stall at the inspiring stage. Anything that eventually reaches a lot of people started by working properly for a few. Your street, your school or your team is somewhere you can actually see whether the idea helps.

Take the biggest thing you want to fix and find its local version. Try it at a scale where you know people’s names. If it does not work there, it was never going to work bigger.