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i've been researching how much land it takes for a person to be self sufficient. these guys http://thesietch.org/mysietch/greenspree/2007/07/17/self-sufficiency/ reckon it's about 0.1 acres per person, or about 400 square metres.

the secong image is from the artist rosalie gascoigne. this is one of her works that recycles road signs she'd found. i've been thinking about similar possibilies for cladding walls.