Amazing Spaces

I came across this video randomly; a Chinese architect made a transforming house. It's pretty intriguing, especially it's claims to ecofriendliness.

http://www.megavideo.com/?v=RPYAEAI0

Okay, SURE, passive solar design is ecofriendly, but where is all the metal and glass that aids it coming from, especially because metal washes and metal production are incredibly environmentally destructive (although it's difficult to weigh the cost/benefit analysis externally; the pollution that goes into powering that many people in such a small area is a very different kind of pollution than the point source pollution of mining, etc.).

Anyway, if anyone is still around, it's a pretty amazing living space.