[simiones]

If Google launches this tool, Google will make money off the answers this tool provides. The fact that this tool is trained on the content from SO will not mean SO gets any money. Also, if users just get the answers from Google Bard, they will not visit SO, and will not contribute to SO's community or revenue. So, the SO community will eventually die if Google Bard is good enough.

The whole premise of the economics of these LLMs is built on the assumption that the training data is (mostly) free. If you need to pay people to provide the training input, you will quickly find that you're spending more money on creating the training data than you're getting out of the finished model.

[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.