I don't want to put down your sense of self-reliance here, but it seems to me that you are severely underestimating how much society will change in the coming 100 years - barring any great upheaval, that is. You might be tempted to look back 100 years to help in making such a comparison, but that's likely not enough; perhaps 200 or 300 years would be more accurate.
You might call it a free voluntarist society on the surface, but underneath, you will probably have but a tenuous grasp of the culture and social norms of the time. How would you even interact with other people, when most would see you as a lunatic from another age? Further, technology will certainly have advanced far beyond our expectations: Facebook mark III? Try global telepathic messaging systems, or whatever.
And even if things like genetic engineering haven't become commonplace by then, you would still be far removed from it all. In other words, a poor, destitute person of that period, having at least been born and experienced beforehand a portion of such a society, would have far better chances at a decent life than you, or most any person from this period, I'd think.
Also, even in an anarcho-capitalist society, land would still be owned by someone - at least the developed portions. So, if you actually found someone willing to deal with you, and you somehow had something they'd be interested in, wouldn't you still have some form of rent associated with your use of the land to sell fish, services, or what have you, as well as for accommodation? Perhaps not state imposed, perhaps better, but taxes by another name, nonetheless?
Nah thats too far ahead, I don't think you will find any telepathic technology by than, I`m not even sure if that technology is even possible considering the laws of physics.
Maybe in 3000, but definitely not in 2100, i mean there hasnt been much change since 1700, the language surely didnt changes much, we had technological and scientific changes, but thats all. The average life of the average people is still exactly the same. They are born, they are indoctrinated, then they work all their life, and then they die.
It is the same as in 1700, the culture is exactly the same, with some minor "trend" changes like from bookreading to MMO games and such, but really if you look into it, there wasnt any major change.
So I`m sure in 2100,if we survive the collapse and dont nuke ourselfs, the society will still be the same, even if we would live in an an-cap society. Sure life would be easier, with all the gadgets, but people will remain people.
Until we are human, and dont evolve into a drastically other species, we will remain the same. There will be always those who can't keep up with technology, I mean even now there are islands near India where people live like in the stone age without technology and electrcity, in the jungle. So in 2100 those primitive 2000-ers would make themselves an isolated place and live there , I would be just fine off with them, until I learn whats going on
