The pivot of the article is this, at the end: "There are no other hypergrowth markets left in tech."

That's the key.

Tech is, at the moment, the only growth engine for capitalism at this time, that sustains the whole world economy (before, it used to be "just" IT [2015], credit [2008], oil [1973], coal, which all have demonstrated their limits to sustain a continuous growth).

AI is the only growth engine left within tech at this moment, supported by GPU/TPU/parallelization hardware.

Given what's at stake, if/when the AI bubble bursts, if there's no alternative growth engine to jump to, the dominos effect will not be pretty.

EDIT: clarified.