Dunbar's Number: Why My Theory That Humans Can Only Maintain 150 Friendships Has Withstood 30 Years Of Scrutiny
from The Conversation
– this post authored by Robin Dunbar, University of Oxford
Exactly 30 years ago, I was pondering a graph of primate group sizes plotted against the size of their brains: the larger the brain, the larger the group size. I was curious to know what group size this relationship might predict for humans.
The number my calculations gave was 150. Since this seemed low, I hurried off to the library to look for data on natural human group sizes. Hunter-gatherers live in multilevel societies, with groupings of individuals forming a hierarchically layered structure – families within bands, bands within communities, communities within tribes.
Source: http://econintersect.com/pages/opinion/opinion.php?post=202105160154
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