Friends: Understanding the Power of our Most Important Relationships
social interdependence breeds emotional interdependence, leading people to strongly identify with their in-groups and to make sharp in- group vs. out-group distinctions based on social interconnections.
Joseph Henrich • The WEIRDest People in the World: How the West Became Psychologically Peculiar and Particularly Prosperous
The result of selecting a fairly constant social environment during young adulthood is that we subsequently spend most of our time with a limited cast of familiar people. These people provide stability because they keep behaving