The artist, curator, philosopher, media theorist and long-time director of the ZKM | Zentrum für Kunst und Medien Karlsruhe died on 1 March a few days before his 79th birthday. He was featured at documenta 6 in 1977 with a selection of early video and television works. Twenty years later, as part of documenta X (1997), he was one of the speakers at the legendary "100 Days 100 Guests" event series in the documenta Halle.