His major book Technics and Time investigates the essence of technical objects. In Echographies of Television, Stiegler and Jacques Derrida discuss the growth of teletechnologies and their implications for law, privacy and citizenship. Stiegler has led several research programmes in the domain of digital technologies applied to text, image, and sound, and he conceived and organised the exhibition Mémoires du Futur, presented at the Centre Pompidou in 1987. He is the Director of the Institut de Recherche et Coordination Acoustique/Musique (IRCAM) in Paris. Discussion chaired by Charlie Gere (Birkbeck College, author of Digital Culture).