Revisiting Dunbar’s Number (and the rule of 150 relationships)

Today, it’s easier to find out what long-lost friends are doing when they post pictures of their trip to South America on Facebook than keeping up with a trusted buddy in the same town. The power of social networks to keep us close to people with whom we have weak ties can sometimes feel like…

How many people can I connect with, really? (Dunbar + friends?)

If you’ve read any network theory, you’re probably familiar with Dunbar’s Number, or the idea that groups tend to fall off quickly in effectiveness and cohesiveness once they exceed approximately 150. The finding came from some anthropological research originally, and leading companies such as W.L. Gore have used Dunbar’s number as the ceiling for work…