"I was working on commercial GPS technology. I’d gotten into that because I’d thought I wanted to be an astronomer, and I’d gotten fascinated with satellites. The most interesting ways of looking at the GPS grid, what it is, what we do with it, what we might be able to do with it, all seemed to be being put forward by artists. Artists or the military. That’s something that tends to happen with new technologies generally: the most interesting applications turn up on the battlefield, or in a gallery."