I don’t mean to be rude, but this is like talking about the second coming. The archeological evidence does not suggest that pre-historical cities were anarchic utopias. Whether or not some anarchic utopia is possible in the future is certainly an interesting question to speculate about, but that speculation can’t be a meaningful guide as to a plan for near-term improvement of our culture, for exactly the reason you state: we have never seen such a system, and don’t know how it could work.
It does seem clear to me though that it would require every citizen of such a utopia to have a strong ethical model that they follow, and to be actively involved in keeping things working. And that’s also a recipe for fixing a broken central government. So that is something that we can start doing now—we don’t have to wait until the second coming.
