Skimmable. That could be really important given attention spans. Funny thing is reading your comment made me think back to radio. It was possibly second thing to be skimmable. You just keep changing channels listening a few seconds until you hit something interesting. Many people do the same thing with current stations in their car for discovery of interesting & popular content. It would seem an audio, social network could similarly be skimmable if people could tune across channels like that with ease. Would have to be fast with no wait time just like a knob.

I don't know if this does it or the author has looked into the concept. Just jumped out at me when I read your comment as I almost never listen to radio but was skimming it past, two days just to see what caught my attention.