> But I think the top game of the 2030s will be something like AI Minecraft or AI Steam, where everything, including the very rules of the game, is generated from a structured data set optimized for the player.

Steam and Minecraft are both social by nature. People very often want to play with other people. It's like the joke I do all the time about AI feeds on Netflix: they recommand the same thing to everyone because the AI realized that everyone want to talk about the thing they saw more than they want to enjoy seeing the thing. Humans are socials creatures.