On Start the Week Tom Sutcliffe delves into the world of transhumanism, a movement whose aim is to use technology to transform the human condition. The writer Mark O'Connell has explored this world of cyborgs, utopians and the futurists looking to live forever. Raymond Tallis seeks to wrest the mysteries of time away from the scientists in his reflections on the nature of transience and mortality. Laura Tunbridge listens to the late works of Beethoven, Schumann and Mahler to ask whether intimations of mortality shape these pieces, while the mortician Carla Valentine uncovers what the dead reveal about their past life.