8GHz CPUs don't exist because we went the multi-core path for the time being - I said that earlier, didn't I?

But the gains from adding cores will diminish.
Going from 1 to 2 cores realistically doubled the CPU performance for almost everyone. Going from 2 to 4 was great as well. 4 to 8 - not that obvious. 8 to 16 - almost unnoticeable for most. That's what I'm taking about.
So we'll have a very large group of consumers that doesn't benefit from 16, 32, ... cores.
But staying at 8 cores doesn't mean they want to stay at 2020-ish performance. They have money, they want faster CPUs. And that will hopefully convince CPU makers to work on faster cores.
I think there's a misunderstanding.
No one
needs more cores. We only need more performance.
Adding cores is an easy way to add performance, but it only benefits loads that can use more cores.
Increasing per-core performance is harder, but it benefits all loads.