Whatever happened to One Building / One City?

Apparently not much.

My previous post:http://stevekingonsustainability.blogspot.com.au

Links:
http://www.dezeen.com/2015/07/20/foundations-planned-worlds-tallest-building-changsha-china-repurposed-fish-farm-skyscraper-broad-sustainable-building/

Small Sky City built prototype:
http://edition.cnn.com/2015/06/26/asia/china-skyscraper-prefabricated/