Carmack seems to be simulating a vtuber AI watching TV and playing video games.
If anyone here is doing that too, I would recommend taking a quick look at Neuro-sama on Twitch. They're using RL to play OSU, Minecraft, and Pokemon, and voice input + video image analysis to react to Twitch streams and documentaries. While being watched by 6.5K people.
The url is twitch.com/vedal