Apparently because they think AI is still a good bet?
From a purely short-term economic standpoint, it is VIOLENTLY more profitable to go whole-hog with AI right now. Once the bubble pops though, they will regret it.
There's already talk about opening up private AI companies to retail investors (aka regular people). Once that happens and people get fleeced one last time, then it's going to end.
We are close to the final stage but not yet.
Currently we're at the peak NFT stage when everyone was generating their own slightly different monkey.