The magic number 150 "seems to represent the maximum number of individuals with whom we can have a genuinely social relationship" -- perhaps (for example) it's the tipping point between a band and a tribe (one having formal leadership, the other tending not) in Jared Diamond's Types of Societies. Anyway, this number could arise from the cost of maintaining the network versus its complexity. An interesting thought.
The magic number 150 "seems to represent the maximum number of individuals with whom we can have a genuinely social relationship" -- perhaps (for example) it's the tipping point between a band and a tribe (one having formal leadership, the other tending not) in Jared Diamond's Types of Societies. Anyway, this number could arise from the cost of maintaining the network versus its complexity. An interesting thought.