Main complaint with Facebook is how rigid the friendships are. There are people I'm friends with on Facebook that I haven't spoken to in ten years. But it feels

Main complaint with Facebook is how rigid the friendships are. There are people I'm friends with on Facebook that I haven't spoken to in ten years. But it feels weird to delete them. For some reason it feels natural to add everyone you know, even if you've only ever spoken to them for a single evening. To put it another way the edges of the Facebook friend graph don't have weights where the IRL graph does.