I really don't see his point. He says Facebook is too big to fail, and compares it to AOL. Yeah, AOL is still around, but it is no longer seen as a controlling force in the ISP industry. The goal of Diaspora has never been to wipe Facebook off the face (no pun intended) of the Earth - but to stop it from being such a controlling factor in social media. If Diaspora causes Facebook to become as popular as AIM is now (w…
Facebook beat MySpace ultimately by being easier to use, with a cleaner interface. It also struck at a time when social networking technology (and broadband access) had matured to the point necessary for mass public acceptance. The normal lifecycle for every major social network before Facebook was about 18 months -- that's about the span of time MySpace was king of the hill.
I in fact predict that Facebook will eventually fade to AOL-esque irrelevance. I just don't think Diaspora has the right value proposition to slay the Facebook dragon.