Video feedback is made by pointing a video camera at a screen which is displaying it’s own output.
You see spirals and circles which pulsate like a phantasmagoric mirror.
If you introduce a reflector which splits the camera image in half (in this case a CD) bifurcation patterns occur and if you get the angle right a myriad of geometric fractal flower patterns become apparent.
Additionally labyrinthine patterns that resemble fingerprints or zebrafish patterns self organise onto the screen.
A second experiment involved pointing the camera at two monitors. True fractal patterns emerged with Sierpinski triangles, ferns, crystals, infinite cityscapes, cauliflowers and shells.
Making the monitor into the negative brought on angry stripy patterns like an infinite zebra crossing.