Unlike all the other times I'd tried where it quickly ended up with black or white dominating and then filling the whole area (except once when it became all white except for a single black pixel) this ended up with the whole area filled with a checkerboard pattern except for a jagged fault line running from top to bottom. The waves of filling would cause small changes to the fault line, and occasionally a small island of black or white would form and then be taken over by the checkerboard.

I was going to let it go for a lot longer but accidentally did the "back" gesture on my mouse bringing me back here. I've tried several times since then but that is the only time I got something that was long running.

Anyone else get any interesting long running ones?

These screenshots look awesome. Definitely checking this one out. Thanks for this!