if money people say something is a dead duck, they probably have an upside in it but it's worth bearing in mind, making money by correctly predicting "its dead Jim" means .. it's dead Jim.
Contrariwise if people say something is "the ducks nuts", they probably have an upside in it but it's worth bearing in mind, making money by selling ducks nuts usually means you bought a handful of beans which are decidedly NOT magic.
One thing is for sure: a metric tonne of money is flowing into AI, and some of that money WILL turn out to have evaporated or burned in a giant potlach, and some of that money will continue to exist and will have made somebody ELSE fantastically rich.
My non-goldman-sachs prediction: most of the $1t of money poured into AI will be wasted in the bigger picture and very little of it will show any ROI but some fantastically wealthy people will exist because of this bubble.