There is a lot of room for development before the exponential curve can be carried by the next paradigm: at least for desktop computers we are still decades away from case filling 3D "compute cubes".

It's quite possible that kind of thing has hard limits set by cooling.

sure but usually before hard limits are reached a new paradigm is ready to take over

The wafer scale computing folks would disagree...

This is insane.

https://www.eetimes.com/powering-and-cooling-a-wafer-scale-d...