@neauoire are you by any chance aware of some work doing “useful” computation with cellular automatons?
@aartaka Probably not really what you meant, but have you already seen Conway’s Game of Tetris? Does it count as “useful”? https://codegolf.stackexchange.com/questions/11880/build-a-working-game-of-tetris-in-conways-game-of-life
Build a working game of Tetris in Conway's Game of Life

Here is a theoretical question - one that doesn't afford an easy answer in any case, not even the trivial one. In Conway's Game of Life, there exist constructs such as the metapixel which allow th...

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@normalmode I’ve also seen Turing machine built in GoL! And yeah, that does fall under “useful” to me!