AI can only learn from what has been created. So far, humans created all stuff is used to train AI.

Thought experiment : If humans stop to create/innovate and delegate everything to AI, AI will be left with no more training data except than the one it itself created (+ all digitalized data created from humans before they stopped). Which will be condensed in statistical weights, again and again. Over the years, no more innovation, just tuning a statistical model, and humans hoping for something new and unseen that works, because AI has all knowledge.

I just hope humanity won't end up like this.