And then they would find a way to make that embedded Doom run the thing that they are building [1]. Possibly inside a cellular automaton.
[1] Can Doom Run It? An Adding Machine in Doom https://blog.otterstack.com/posts/202212-doom-calculator/
[1] Can Doom Run It? An Adding Machine in Doom https://blog.otterstack.com/posts/202212-doom-calculator/