there is the city near the Salton Sea called Slab City i was reading about not too long ago. and watching vids too. sounded like a very wild place and a bit too crazy for me to even consider it. still interesting to me as i ponder how to live near people, but not too near. i like my own space. communal living has some appeal to me, but not right in there like a big dorm room type of set up.
i do like the idea of living in a cave and had a friend who started making one for himself on his property, but i have no idea how that has turned out or what he is up to these days. i've lived in an attic so a small close space doesn't bother me, but i don't like it to be super dark as i would want some way of having enough light for plants. putting a place in along the edge of a cliff that was stable enough would be one approach i'd like, i've even designed places in my head to fit a few different scenarious.