Descrição
This illustration is from Robin Dunbar’s recent book, Friends: Understanding the Power of Our Most Important Relationships. You might recall the author’s name from his concept of Dunbar’s number: that on average people can maintain about 150 friendships with others, a limit that is determined by human brain size and function. The chart is a more detailed version of the concept: it shows, roughly, the number of people we can have meaningful relationships with at various levels of intimacy.
