I don't think Twitter is analogous to yelling in a town square. It's more like talking at a bar, where others can overhear you. Twitter can of course start thr

I don't think Twitter is analogous to yelling in a town square. It's more like talking at a bar, where others can overhear you. Twitter can of course start throwing people out, but then it turns into a clique and will probably be eventually subsumed by the larger society that it ignores.