In this case, that's NVDA
Crypto's over, gaming isn't a large enough market to fill the hole, the only customers that could fill the demand would be military projects. Considering the arms race with China, and the many military applications of AI, that seems the most likely to me. That's not a pleasant thought, of course.
The alternative is a massive crash of the stock price, and considering the fact that NVIDIA makes up 8% of everyone's favorite index, that's not a very pleasant alternative either.
It seems to me that an ultra-financialized economy has trouble with controlled deceleration, once the hypetrain is on it's full-throttle until you hit a wall.
Data centers might, but then they'll need something else to compute, and if AI fails to deliver on the big disruptive promises it seems unlikely that other technologies will fill those shoes.
I'm just saying that something big will have to change, either Nvidias story or share price. And the story is most likely to pivot to military applications.