This in-group out-group distinction also meant that those outside our group were seen as a threat to our resources. The modern evolution of in-group out-group bias has been codified into our political, economic, and social systems. It has organized our world into a matrix of oppressive structures. But it doesn’t have to stay that way. Ultimately we are wired to recognize difference and maybe even distrust it. However, we were also wired to eat bugs and to poop in a hole in the ground. The point being, we are capable of change.