- Jan 2022
Also, researchers have disputed the empirical observation of mean human group sizes approximately averaging around 150 persons, presenting empirical observations of group sizes indicating a wide variety of other numbers [46–53]. Thus, ecological research on primate sociality, the uniqueness of human thinking and empirical observations all indicate that there is no hard cognitive limit on human sociality. Our reanalysis provides the last piece of evidence needed to disregard Dunbar's number.
Even if Dunbar's number is disproved, the range of social network sizes seem to all be less than some upper bound, such as 1,000. This is aligned to common sense - we simply cannot invest meaningful time to maintain more than a group size of even 1,000.