the reason for the Lucky Twist’s endurance. It wires our brains for optimism. The existence of true luck tells us that good things can happen, not that they will or won’t based on certain criteria but simply that they might at any moment for no reason at all. “That creates durable optimism,” Fletcher explains. “If something bad happens to you, you just say, ‘Well, bad things can happen but that doesn’t mean a good thing couldn’t happen tomorrow.’ That keeps alive your optimism.”

