[mbesto]

> Sure, but that doesn't mean that Facebook will stay in business, let alone stay fashionable or popular.

Absolutely agreed. I was raising questions about the point for the absolute existence of a social network. I think what the originator of this discussion was saying is that any social network is a necessity to living (much like food and shelter). In other words there will always be a market for such a platform (as opposed to say something like selling iPods)

Also I'm interested in understanding why you think Facebook's concept of identity and privacy is naive? My identity is composed of the things I like and my privacy consists of the things that I like that I wish to share with people. Facebook gives me every opportunity to do exactly both in an extremely controlled manner.