Dunbar's number
English
editAlternative forms
editEtymology
editProposed in the 1990s by British anthropologist Robin Dunbar, who found a correlation between primate brain size and average social group size.
Proper noun
edit- A suggested cognitive limit to the number of people with whom one can maintain stable social relationships. It has been proposed to lie between 100 and 250, with a commonly used value of 150.