There far too many railways, amusement parks, housing developments and other bubble ventures that were either never even completed after wasting a lot of money or went bust soon after opening.

No reason the same can't happen now - especially for something as expensive and faily easily re-sellable as a datacenter & the hardware insite. Just rip it all out and sell it for parts where they are actually needed.

The data centers have already been financed, they’re not going to stop halfway through because they’ve run out of money. Whether or not they’ll make money on completion is a different story, but that’s 2-3 years away at least. Then you might see RAM prices drop, but not before.