Camera Feedback Loop Effect Creates Portal Into The Depths Of Time

What happens if you point a camera at a TV broadcasting live footage from that same camera?

You can see into the depths of time itself.

Or some really weird camera effects.

Anyway, while interesting (and in the case of this video, latterly viral) this is hardly new - it's been used as a simple camera effect for everything from the Doctor Who opening credits to the video for Bohemian Rhapsody.