Dunbar Number

Dunbar number in graphic form

Robin Dunbar Explains Why His ‘Number’ Still Counts

Exactly 30 years ago, Robin Dunbar 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 his calculations gave was 150.
2 years ago
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