These days, the biggest fun brands in the world, like CrossFit, Pokémon Go, and Tinder, have figured out exactly how to make people come back every single day. They don’t just sell something cool. They build a whole world that feels hard to leave. You see athletes who can’t start the day without their CrossFit box, players walking miles in the rain for a rare Pokémon, or someone checking Tinder notifications at 2 a.m. again. It’s not normal loyalty anymore. It feels more like a friendly trap that people actually enjoy.