[m12k]

And here's a couple videos about a technique that was inspired by the Obra Dinn's dither, but making it surface stable:

https://www.youtube.com/watch?v=HPqGaIMVuLs (explanation)

https://www.youtube.com/watch?v=EzjWBmhO_1E (demo)

[kragen]

These are absolutely amazing, thank you! I had wondered whether something like this was possible because I have this 1-bit-deep screen here, and now I'm delighted to see that it is. I'm just not sure if my machine has enough CPU to manage it.