What Do We Lose When We Don't Interact With Strangers?

When you don't have contact with other groups, it allows the luxury of inventing them in your own mind. If you're not talking to people who are different than you are, you lose access to things like a person who tells you that your idea is stupid. Hears why all this stuff is invaluable. It helps explain how one community becomes fearful of another community and explains how one individual is afraid of interacting with another. And what do we lose because of all this? What you lose is everything that we gain from learning to talk to strangers as a species.