Remember the days before digital copying? Every copy introduced small errors; a copy was always a degraded, inferior version of its parent. But entropy has a beauty of its own, as in this beautiful film By Alexander Stewart (it’s not embeddable, so you have to follow this link):
Errata is an animation made by photocopying copies of copies. Starting with a blank sheet of paper, each successive copy becomes a frame of animation, meaning that each on-screen image is a copy of the last. All movements, pans and zooms in the film were accomplished using standard zoom and shrink features on copy machines; the animation camera used to shoot the copies onto 16mm film was not used to manipulate or direct the film’s motion. Comprising thousands of copies made on a dozen copiers, the resulting imagery is a moving Rorschach test of analog textures, bleeding ink spots and pareidolic cloud formations.
In contrast, digital copies are perfect – indistinguishable from their “originals.” Compression, however, retains that exciting element of entropy, as artist hadto demonstrates:
Granted he intentionally increased the compression from frame to frame; the discussion on the video page is enlightening (and led me to Errata in the first place).