A lot of what this guy is saying is out there and I don't agree with his spiritual points, but what he has made is pretty dang cool. He has constructed a small floating island out of trash, dirt, and plants. Check it out.
https://youtu.be/GnLhWpy_nqI
This guy basically lives like a hobbit (with less tea and refinement, maybe).
https://youtu.be/zdLAM-wChxY
These are quite amazing. Of course, they're completely impractical for me, but it's nice to see other people's work.
It's impractical for me to live in, also. But I can see myself trying to make them with my family for a project or something someday.
So, wanted to add another alternative lifestyle to this thread. Narrowboating in England. This is a subculture that has fascinated me. People live in narrow boats up to 50-60 ft. on the 2000 or so miles of canals throughtout England, Wales, and Scotland. Here is a link to someone talking about it: https://youtu.be/7CbpVVqidDo
Or a short documentary of various narrowboaters:
https://youtu.be/QuMYInmIuPw
So, I thought this was pretty interesting. This man is living in the abandoned Packard plant in Detroit.
https://youtu.be/OwKyXCy2LTc
Here's another great example of alternative living -- another floating island. This couple has built a more or less two person floating village in a cove on the west side of Vancouver island. Check it out:
https://youtu.be/z9WWzbzevTA