Well put. What a treat to find such great writing on HN. Here's one more thought on why Facebook, Twitter, and even MySpace feel so much more natural than Google+: perhaps it has to do with the fact that large, functioning communities cannot be master-planned. The must grow naturally and organically out of small communities, in ways unforeseen and unplanned. Facebook did. Google+ was master-planned as the next full-scale social network. I have the sinking feeling it will suffer the fate of California City:

http://en.wikipedia.org/wiki/California_City,_California#Tow...