Never call a man happy until he is dead. Also I don’t think your argument generalizes well - there are plenty of private research investment bubbles that have popped and not reached their original peaks (e.g. VR).
> I don't think there will be any more AI winters.
This isn't enough to qualify as a testable prediction, in the eyes of people that care about such things, because there is no good way to formulate a resolution criteria for a claim that extends indefinitely into the future. See [1] for a great introduction.