I completely agree. Deep learning has been doing this most recently and I'd argue that the very existence of AI winters is really just deflated expectations tha

I completely agree. Deep learning has been doing this most recently and I'd argue that the very existence of AI winters is really just deflated expectations that always were overly ambitious. My own way to look at AI winters is as triumph of Scruffy pragmatism over Neat delusions. Intelligence is unimaginably complicated, there is no reason to believe that silver bullet algorithms even exist, let alone the probability that the latest fad is it.