The term "Dunbar's Number" refers to a particular hypothesis by primatologist Robin Dunbar. It is a very simple idea with rather complex implications, and it is one of those simple ideas that gets more complicated than ideal as we look into it more and more. Eventually, the idea is required by many who contemplate it to do more work than was ever intended, and in this way seems to fail, though it really doesn't. I personally think Dunbar's number is useful if it is properly understood, so I want you to give it a chance, and to help you do that I'd like to use an analogy.
I'm thinking of a…