what they could not do on their own? And he shared interests in other topics that were a key part of the story: altruism and goodness, both of which are essential for social networks to grow and endure.
assembled. One cannot, for example, be friends with absolutely anybody. People are constrained by geography, socioeconomic status, technology, and
Note: not necessairly true any more . . .the technology is cheaper and more ubiquitous and that removes geography as a barrier.
differently. But what is it about combining people into groups with particular configurations that makes them able to do more things and different things than the individuals themselves?