4/4. The Final Frontier. In the early 20th century, modernism set out to change the world: now it's on a mission to save it. Dan Cruickshank goes skiing in the desert, controls the world with the flicker of an eye, marvels at buildings that are knitted rather than built - and even pushes back the boundaries of outer space.
Producer Ian Leese ; Exec producer Basil Comely Living with Modernism follows on BBC4 at 10pm