Supertall buildings have become just another part of the urban scenery. They are, writes science fiction writer Bruce Sterling, “stunningly factual, immediately obvious, impossible to overlook.” But what of the unbuilt towers of the future? What might *they* look like. With his customary lyricism, Sterling describes four classes of future skyscraper.
Who should go to Mars? Fancy growing a chair? Top creative thinkers share their thoughts on what the future might look like, in films shot at TED2015 by Jesse Dylan.