[exmadscientist]

Have you ever been a teacher? Even a teaching assistant?

I have. Some people are dumb.

You try teaching these people (anecdotally they're less than 1% of the population, with no obvious markers, so you have to actually find one first) and then come back and tell me how it's like "getting algebra to run on someone with less working memory". If I wanted to continue that analogy, I might say that the task is like getting algebra to run on someone whose brain has a power supply that randomly shorts out and spends half its time browned out.

Because some people out there are just not easy to teach.