[lukan]

It seems we are not talking about the same thing. You seem to be talking about strict isolationists. Those are usually of the cult type and no doubt they will all create their version of nationalism likely within the 1. Generation.

But all the other self sustainable projects that I know, are far from the idea of wanting to shut themself of the world.

The main idea is just to not be so dependent on the crazyness of this world. But still be connected to the world. Trade, travel, exchange, ..

[vasco]

How many of those projects have been going for more than 3 generations? Why do you think all the last times it was attempted it turns to that? Most of the undisturbed tribes kill intruders on sight. Most countries that ever turned to isolationism have their population suffer vs their neighbours when enough time passes. I said nothing about the intentions of who starts these communities, that barely matters, what matters is the system they put in place after a few generations. If the system is flawed good intentions go nowhere because after a few generations you don't have a group of idealists anymore, you have random people operating in an isolationist system and they'll act according to their incentives.

We should maximize cooperation between communities, not restrict it. It's the best way to avoid war long term.