You have! I think what is being discovered right now is whether DOOM itself is Turing complete, and if so, can you program DOOM inside of DOOM by making a comp

You have! I think what is being discovered right now is whether DOOM itself is Turing complete, and if so, can you program DOOM inside of DOOM by making a computer inside of DOOM composed of DOOM monsters and map features that, when ran, recognizably played DOOM. Sum up: creating a computer inside the game of DOOM and programming that computer to itself play DOOM would constitute DOOM running DOOM