When we were kids, we had no limits. We knew we could be anything we wanted in life. I assumed I’d be able to choose between being a football player, astronaut, railroad tycoon, or professional Nintendo player. It felt good to live in that world. I built a fort out of an extra pallet of bricks behind our house that faced an empty field. I single-handedly fended off battalions of invading soldiers, victorious every day, despite my many bullet hole wounds that only hurt when I pretended they did.