The original trigger for the Loyalty foundation is anything that tells you who is a team player and who is a traitor, particularly when your team is fighting with other teams. But because we love tribalism so much, we seek out ways to form groups and teams that can compete just for the fun of competing. Much of the psychology of sports is about expanding the current triggers of the Loyalty foundation so that people can have the pleasures of binding themselves together to pursue harmless trophies.
