I don't think there will be such a unique event. There is no clear boundary. This is a continuous process. Modells get slightly better than before.
Also, another dimension is the inference cost to run those models. It has to be cheap enough to really take advantage of it.
Also, I wonder, what would be a good target to make profit, to develop new things? There is Isomorphic Labs, which seems like a good target. This company already exists now, and people are working on it. What else?