> proving to inventing new theories and finding new conjectures with the help of AI

This is exactly the activity Tao and others worry will be hollowed out by instant "true/false" responses to novel questions.

inventing new theories is the interesting part.

finding new conjectures is the second interesting part

"instant "true/false" responses to novel questions."

Fair enough. Then we can add ordering and analyzing theorems with the help of AI as a third activity, admittedly the least interesting one.