More a sequence of potential events than a timeframe.

High-end GPUs are already useless for gaming (a low-end GPU is enough), their traditional source of demand. They're floating on artificial demand for a while now.

There are two markets that currently could use them: LLMs and Augmented Reality. Both of these are currently useless, and getting more useless by the day.

CPUs are just piggybacking on all of this.

So, lots of things hanging on unrealized promises. It will pop when there is no next use for super high-end GPUs.

War is a potential user of such devices, and I predict it could be the next thing after LLMs and AR. But then if war breaks out in such a scale to drive silicon prices up, lots of things are going to pop, and food and fuel will boom to such a magnitude that will make silicon look silly.

I think it will pop before it comes to the point of war driving it, and it will happen within our lifetimes (so, not a Nostradamus-style prediction that will only be realized long-after I'm dead).