The meeting of the machine and the body is an uneasy one. In the realm of performance, this uneasiness is reflected in the fact that, as technology has grown more and more sophisticated, the successful design of “instruments” that can be manipulated during performance with anything like the fluidity and intuition of conventional musical instruments has remained elusive. This failure, however, is not due to a lack of imagination on the part of artists, but a reflection in art of the uneasiness of the meeting of machine and body throughout culture today, which can be seen in every human activity: war, work, play, reproduction, and so on. How machines and bodies will co-exist is thus not a problem to be “solved,” but the central tension of our time in human history. Thus, it is a compelling terrain in which to locate art.