I can take credit for ruining him on this.
Since this is a custom game engine for TempleOS you can't just use video drivers from nvidia so he rolled his own. There was an issue in his system he could not fix. I tasked Claude to fix after Opus 4.8 came out and it was able to solve it in a day. He was shocked because TempleOS doesn't have traditional memory management but Claude was able to understand his custom garbage collection and build on it. After that I don't think he had any more reservations about AI.
Btw I have no idea how to write code in C. The only time I ever did anything in C directly was when I wrote a very, very small add-on for nginx. So someone with zero experience in either game dev or C was able to fix an esoteric video rendering issue for a custom game engine he'd never touched before on an esoteric operating system written by one dead man.