I suppose that's true superficially, but how many of us utilize 100 percent of our CPU and GPU power.

AI datacenters, absolutely. People? Nah we probably use 10 percent for 90 percent of the time.

But when I need to compile MAME, oh boy is it nice having a fast CPU.

Right -- in the details this is heavily task dependent. If we're talking about word processing, then computing has mostly gotten worse in the past 20 years.

If we're talking about video game graphics it's a bit of a mixed bag.

If we're talking about local LLM models then you need all the power you can get.

Etc, etc.