Throughout the video and while appreciating this unbelievable feat I kept thinking "how could someone have the motivation necessary to tackle such an insurmount

Throughout the video and while appreciating this unbelievable feat I kept thinking "how could someone have the motivation necessary to tackle such an insurmountable undertaking" ? And then he said it: "All I wanted was the specific reason DOOM can't run in a type system but every time I hit a roadblock I always came up with some ridiculous workaround. I clung to that belief that it couldn't work and that doubt fuelled me the whole time." Beautiful. I wonder if I can trick myself to one time attempt the impossible.