> Even if the investors funding this construction all go bankrupt, the data centers don't just vanish: someone will buy them from the bankruptcy court and operate them.
There are really three questions to answer on the long term:
1. Is an arbitrary service profitable enough to cover opex AND burn down the massive capex financing? A few companies might have enough magic to survive, but I suspect a lot of them go to the bankruptcy fire sale you mention.
2. Is the service profitable enough to cover just opex? The second generation vendors may have a somewhat more favourable cost structure, but there's still a floor. Electricity and cooling on a datacentre scale aren't free, and we may find there are still services that can't even meet that threshold. I notice you see far less marketing for consumer video-gen these days...
3. We let those businesses fail. What does the long term market look like at that point? You have a snapshot in time of paid-for datacentres, but the market shock probably shot a huge torpedo into long-term R&D and planning. Vendors will scale back to refocus on markets that are more vital (maybe selling RAM and GPUs back to end users :) ), and create an era of stagnation. AI becomes a utility, in the sense of "boring, predictable industry that growth investors have very little enthusiasm for".
There is also the risk that the data centres could vanish. This is a very hype-dependent market: we've spent the last 5 years going from "novelty" to "productivity tool" to "weapon of mass destruction" to keep people excited.
Eventually there's a put-up-or-shut-up moment. What happens if we get to 2035, we've hit a plateau for 3 or 4 years, and they can't deliver Lieutenant Commander Data, or even Kryten? All we really have to show for the effort is a bunch of old GPUs, displaced workers, and the ugliest restaurant fliers you've ever seen. It's a big loud target for a bunch of frustrated and let-down people. We're already seeing moratoria getting political legs, could permit revocations or forced decommissioning be far behind?
I suspect this is part of the reason some players are happy enough to present AI leadership as a New Cold War/US v China thing-- pull the national security card to try to shut down a debate on the actual utility and desirability of the actual product.