[jancurn]

You sent me down a rabbit hole: https://esolangs.org/wiki/APGsembly is mentioned in the book

[falcor84]

And for a related rabbit hole where people actually went all the to the bottom, there's of course the full implementation of Tetris in GoL which was nerd-sniped by a CodeGolf challenge

https://codegolf.stackexchange.com/questions/11880/build-a-w...

[idiotsecant]

Sometimes you see something that makes you wonder how it is that you get to exist in the same world as people with the drive and intelligence to do truly awesome ( in the original sense) thing like this. I am proud of myself when the compiler works on the first try.