411 REFERENCE · Wiktionary
Dunbar's number
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Alternative forms
en Dunbar number
Etymology
Proposed in the 1990s by British anthropologist Robin Dunbar, who found a correlation between primate brain size and average social group size.
Proper noun
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.
en 2020 https://books.google.com/books?id=nnmtDwAAQBAJ&pg=PT152&dq=%22Dunbar%27s+number%22&hl=&cd=12&source=gbs_api#v=onepage&q=%22Dunbar's%20number%22&f=false Michael Wooldridge The Road to Conscious Machines: The Story of AI Penguin UK 9780241333914 Dunbar's number might have remained a curiosity but for the fact that subsequent research found that this number has arisen repeatedly, across the planet, in terms of actual human social group sizes.
en eponyms