[jononor]

Stack Of never paid anyone though, so it seems possible for Google to launch a service where people answer questions to feed the AI and give back similar tokens as SO.

I mean, they could make a game, where people have to try to beat the AI (and other humans) in making the best answers to questions.

[simiones]

Sure, they can try to essentially create and run a new SO - though that's still far more costly than what they did today. Especially when considering similar effects on other content sites.