And who said "no rules"? Freedom is about no rulers, not no rules.
I'm going to read these links you sent, 'cos I really can't understand how you can have rules if there's no ruler to enforce them, *also* when it's a poly-centric system and adherence to any set of rules is voluntary. Thanks.
You can be happy in a cage, if they treat you very well... but you will still be in cage...
The middle class only evolved very recently, but, really, they're just in a cage with glass walls, right? The vast majority of people have lived in a cage for the vast majority of history. There's no clear reason to me why that's gonna change any time soon, bitcoin & anarcho-capitalism or not. The way humans are constructed, there will be, by default, few wealthy & powerful people, and many poor people. If the system is good, it will allow opportunities for poor people to display their skill, and become wealthy. But *not everyone can be wealthy*. That's the Great American Dream, and it's a pile of horse-manure.
Poly-centric law is where no one entity can dictate the law for everyone. An individual must agree to the law in order to be bound by it. If you want to see an example of how this can work in today's world, look at international law.
This is absurd. Everyone gets to choose which set of rules to obey? So if I decide not to be bound by any of them, then I can do whatever I like, right? And, what, can you change your mind when it's convenient for you? "Oh, you know what, today I'm not obeying those laws." And then, in order to transact with anyone, do you have to know which set of rules they adhere to? How many sets of rules will there be? You cite "international law" like as though international law is simple? It's a mess even when countries *want* to cooperate. The lawyers would have a field day.