Apple's fastest new MacBook Pro is slowed down by heat

I said “a” reason not “the” reason.

But when 90% of the market is at a maximum of 4 cores there’s no real reason to do the hard thing. Particularly for low draw program that aren’t likely going to Max out a single core to begin with.

Otherwise exactly many weak cores hasn’t worked. Even in servers where many low clocked cores is normal, they want those low clocked cores to be powerful at a given clock. That seems to be what’s holding back the ARM cores and its what killed AMD with their last architecture. Strong cores and more of them would appear to be the thing.