While it only goes on around 10 minutes, it could go on forever. It's an excerpt of what could be.
This piece is intended for display in a gallery on a TV. It comprises two related videos that are running in parallel. What you see is the superposition. But, because the two videos are slightly out of phase, the image only repeats after a substantial duration (4 or 5 hours). That is, it only repeats 'exactly' after that time. Perceptually, it looks rather more repetitive than that. Maybe I should have called it Perceptual Motion.