There were no smartphones in 2000, so the Web
was overvalued at that point in time... until we all started carrying the Web in our pockets in the form of a portable rectangle.
Given that this is the case, why can't this be analogously true of “AI” as well? There's plenty of reason to believe that we're hitting a wall, such that, to progress further, said wall must be overcome by means of one or more breakthroughs.