The job of a mathematician just shifts from proving to inventing new theories and finding new conjectures with the help of AI, which should be even more fun.
If a conjecture can be one-shotted by OpenAI Astra, I have a hard time believing it is interesting.
For example, here are two topics that came up during my time solving combinatorics problems in the past:
https://en.wikipedia.org/wiki/Parking_function
https://www.sciencedirect.com/science/article/pii/S0012365X0...
This is exactly the activity Tao and others worry will be hollowed out by instant "true/false" responses to novel questions.
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.