They didn't measure memory, they measured how busy each processing unit was. It's like going into Activity Monitor, Tops, Task Manager, seeing all CPUs at 100%

They didn't measure memory, they measured how busy each processing unit was. It's like going into Activity Monitor, Tops, Task Manager, seeing all CPUs at 100% from your app and thinking "We've reach peak perf by utilizing all the processing power" People still do that today. They run some LLM or gen AI type app. See all the numbers reach high percentages, and wrongly think "this app is using all of my machine's potential"