They are big on water re-use, greywater and such. The arcology idea is islands of self container cities that are self sustainable isolated ecosystems that recyc

They are big on water re-use, greywater and such. The arcology idea is islands of self container cities that are self sustainable isolated ecosystems that recycle water etc. These are islands in a new wilderness around. Some arcologies are in space, some are in jungles, some in deserts. Like noas ark. However much i like the visuals of solieris vision, concrete, hippie and brutalist architecture in general, i find the idea of life a city that cannot grow but inwards pretty grim.