Und hier steht, woher die Zahl 150 kommt. Der Anthropologe Robin Dunbar hat die Zahl von 150 Freunden, die ein Mensch haben kann, berechnet.
Robin Dunbar has posed a theory that the number of individuals with whom a stable interpersonal relationship can be maintained (read: friends) is limited by the size of the human brain, specifically the neocortex. „Dunbar’s number,“ as this hypothesis has become known, is 150.