You would not be wrong. It was really just a short project to reproduce something I was very nostalgic for. Which I definitely did not expect to rank highly on HN! But I guess it touched on a nostalgia vibe for some other people too. This was something I thought about for a long time, ended up being a few hours twiddling at a bar. But... there was something I remembered that I wanted to get back and see again.
It just looks like hardly visible lines of single pixels randomly bouncing around.