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robertogreco : grooming   1

actually (27 Oct., 2003, at Interconnected)
"Dunbar contends that humans evolved vocal grooming (language) as a more efficient form of bonding. Assuming that our closest ancester, the chimpanzee, has hit the time budget limiting factor, and that our extra efficiency has all come about with the transition to vocal grooming, this means language is 2.8 times more efficient for bonding than the mechanism nonhuman primates use. That is, "a speaker should be able to interact with 2.8 times as many other individuals as a groomer can. Since the number of grooming partners is necessarily limited to one, this means that the limit on the number of listeners should be about 2.8. In other words, human conversation group sizes should be limited to about 3.8 in size (one speaker plus 2.8 listeners)." (Which makes sense if you think about the different qualities of a conversation with three versus four participants. A study is quoted to back this up.)"
mattwebb  2003  dunbar  dunbarnumber  grooming  primates  humans  groups  groupsize  conversation  speaking  interaction 
october 2015 by robertogreco

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