Thanks, much appreciated!
These are done using Adobe After Effects, it has a plugin called "Time Blend FX" which as far as I know pretty much nobody has ever found a use for before haha, it allows one to make a feedback/echo chain of other effects, albiet in a very clunky and awkward way. So you can make internal video feedback basically using most of the other fx that AE offers. Most of these i started with a tiny bit of noise (visual noise i mean) and then some trace edges etc and a very slight scale and rotation (with the centre point scripted to drift randomly) to give it these crazy infinite zooms. Very promising technique with endless possibilities since every slight tweak is amplified massively. Sometimes you get endless complexity and sometimes it just zooms to nothing. It's a lot like pedal chain feedback harsh noise really except I have to render it rather than any kind of realtime control.