They're simply making a bet that they can put the DRAM dies to more valuable use than any of the existing alternatives, including e.g. average folks playing the latest videogames on their gaming rig. At this kind of scale, they had better be right or they are toast: they have essentially gone all-in on their bet that this whole AI thing is not going to 'pop' anytime soon.
> They're simply making a bet that they can put the DRAM dies to more valuable use than any of the existing alternatives
They can't. They know they can't. We all know they can't. But they can just keep abusing the infinite money glitch to price everyone else out, so it doesn't matter.
When they find out that it is not, in fact, an infinite money glitch, they're going to have to eat that cost. It will work out great for everyone as long as they aren't bailed out.
It's more like a waste-infinite-money glitch, if that's what they're trying. There's no way that a simple speculative attack actually makes DRAM more valuable in the long term on its own, and that's the only win condition for that kind of play. People have tried to hoard all sorts of commodities as a mere speculative play on the market, and it never works.