Saved by Ian Vanagas
The Dunbar Number as a Limit to Group Sizes
So Dunbar proposed a novel idea: the size of a species’ brain determines the optimal size of their social groups. Maintaining relationships, argued Dunbar, requires brain power. More relationships require more neurons. Extrapolating his straight line from primate brains to human brains, he found that the optimal human group size, if this hypothesis
... See moreSafi Bahcall • Loonshots: How to Nurture the Crazy Ideas That Win Wars, Cure Diseases, and Transform Industries
We hit a hard limit on human interaction at about 150 people, both psychologically and logistically.
Large-Group Leadership - Gained InSite: philosophical things for normal people
it was the size of the community that was nearest to 150.
Robin Dunbar • Friends: Understanding the Power of our Most Important Relationships
scaling ratio of 3.3.