If the floor is really strong and you put cement board below it for fireproofing, it is possible. (You are in luck, my husband is sitting right here, or I would be telling you "I don't know.")
We are playing with permaculture techniques at this point, anticipating a total transformation after we get our "survival dot" finished (the AP dome.) I had started to work on a yard we were living in a few years ago, but that was the "show me the note" fight that we lost. That may be what you are thinking of.
This is the article that got my posting privileges revoked:
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