I think you're misunderstanding the definition. > Dunbar's number is a suggested cognitive limit to the number of people with whom one can maintain stable soci

I think you're misunderstanding the definition. > Dunbar's number is a suggested cognitive limit to the number of people with whom one can maintain stable social relationships—relationships in which an individual knows who each person is and how each person relates to every other person. When you're hearing "stable social relationship", you might think of the relationship to your parents, brothers, sisters, children or partner. However, the definition of "stable social relationship" also applies to your doctor, your boss, your coworkers, the lady next door who waters your flowers when you're on vacation, etc. Putting that number around 100-150 average sounds reasonable to me.