Dunbar’s Number: Why the Theory That Humans Can Only Maintain 150 Friendships Has Withstood 30 Years of Scrutiny

This is a drawing of peopleThirty years ago, Robin Dunbar theorized humans can maintain a friendship group of 150 people, with five intimate friendships. Despite many attempts to challenge the theory, Dunbar’s Number has stood the test of time. Backed by neuroscience and statistics, Robin Dunbar explains why his theory still prevails.