The Human Swarm: How Our Societies Arise, Thrive, and Fall by Mark W. Moffett (2019)

If a chimpanzee ventures into the territory of a different group, it will almost certainly be killed. But a New Yorker can fly to Los Angeles–or Borneo–with very little fear. Psychologists have done little to explain this: for years, they have held that our biology puts a hard upper limit–about 150 people–on the size of … Continue reading The Human Swarm: How Our Societies Arise, Thrive, and Fall by Mark W. Moffett (2019)