You know how a three-panel art piece is a triptych? A nine-panel piece is an "enneaptych." Here's an enneaptych of some CA random walks in a 64x64 grid.
And a couple images of earlier iterations:
I was working on a different thing that involved random walks and thought they looked neat, so I started layering a bunch of them on top of each other and ended up with what you see above.
