Songdo is a smart city in South-Korea it is the biggest private city development in history. It was designed by the New York office of Kohn Pedersen Fox. Gale International, holds 61%, Posco 30%, and the remaining 9% is owned by Morgan Stanley Real Estate.
Songdo is awesome but look for yourself in the following video and see other ideas how cities of the future could look like:
Arcologies are buildings that are designed to lessen the impact of human habitation on any given ecosystem. The word itself is a portmanteau of “architecture” and “ecology”. The idea is to build self sustaining buildings or self sustaining cities. The following video by Isaac Arthur explores this concept:
Study of census results in England and Wales since 1871 finds rise of machines has been a job creator rather than making working humans obsolete