[wav-part]

For my taste, though, both anarchism and libertarianism seem to be based on an overly optimistic view of human nature.

Democracy is too optimistic for some parts in the world as well. No system such as (Autocracy/Democracy/AnCap) can work without certain level of cooperation from everyone involved. True AnCap requires most and never-seen-before amount of cooperation but if possible, it does give/predict awesome results.

Maybe they'll become more realistic once we've either evolved or augmented ourselves to a much higher level of intelligence and conscience.

Some of us already have :).

[confounded]

By cooperation, do you not mean subordination?

[wav-part]

In autocracy, cooperation can be called subordination. But not otherwise.

[badosu]

Some of us already have :).

What do you mean by that?

[wav-part]

Its a jab. AnCap is next evolutionary stage of a society (atleast for some socities). Autocracy --> Democracy --> AnCap.

Not quite there ofcourse but they are getting there:

https://www.seasteading.org/floating-city-project/

https://www.freesociety.com/