This post is part of a Webinar debating Dunbar’s Number.<\/p>\n
Part 1 \u2014 Part 2<\/a> \u2014 Part 3<\/a><\/p>\n
Some months ago, an article<\/a> by Jan de Ruiter, Gavin Weston and Stephen Lyon appeared in American Anthropologist. The paper’s target is Robin Dunbar’s Social brain hypothesis<\/a>. The hypothesis comes in many varieties; one might sum it up as the view that our cognitive capacities keep the amount of friends we can have under a fixed threshold, and constrain the size of primate societies. (This summary is inadequate in many ways, as I hope this debate will show.)<\/p>\n