"Sometimes it's not the answer to a question which matters but rather the lack of any answer. Asking questions would appear to be part of human nature regardless of the answers we get or the likelihood of us finding answers to them at all." (Jochen Gerz) Back in 1968 Jochen Gerz claimed at a performance in Italy that art corrupts. Thirty years on, that assertion appears to have turned into a question: does art corrupt? Or, to be more precise, it seems to have become one of a whole number of questions. Calling things into question is what links both the early and current interventions in the public space with the video tapes and video performances of the 70s and 80s. Gerz, meanwhile, is one of the few artists of his generation whose approach to co-operative processes natu rally incorporates the Internet. Gerz is a media thinker and artist. It is impossible to forge an image of him, however, and that is precisely what makes his work so intriguing, particularly for the transmediale.