Michael Vassar makes some observations about this in this chat from about 37:50-40:30. He begins describing something called a "hexayurt tridome", some kind of portable desert structure, and finishes saying "for the cost of engineering the 2016 Toyota Corolla and with the level of engineering skill required to engineer the 2016 Toyota Corolla it would probably be possible to engineer a house that would cost less than a Toyota Corolla and that could be deployed more easily and be adequate for any climate pretty much anywhere in the world where there's a reasonable amount of free space".
I think most places where people want to live don't fulfill the criteria of their being "a reasonable amount of free space".
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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