The human brain is powerful, yes. But it's a highly specialized type of powerful.
Running DOOM on a human brain would be like trying to hamfist the ISS into running Pong instead of life support.
you could easily get the ISS's main computer system running pong. It's still a computer you could logically load a super simple program onto, its got all the architecture for it already, youd just need to find a copy of pong either emulated for the OS or made for the OS
Running DOOM on a human brain would be like trying to hamfist the ISS into running Pong instead of life support.