the definition is based around grade-level reading (what can you identify and synthesize from standardized text in English in a given time frame) and inclusive of a broader population. We’re talking about people who can’t pick up a copy of USA today and tell you the main idea of a front-page article.

Purely anecdotal, but I know someone who is a tenured professor at a university that will flat out refuse to answer any question that has too much supporting detail around it. As in, if you say “for this part of the assignment, I’m doing…” and proceed to describe your attempt at problem solving over four or five sentences, asking if what you’ve done is correct or close to it, and he will simply respond with “there’s too much here to unpack, sorry,” and refuse to answer the question. But if you do it in person, like verbally read out the same paragraph you wrote, he can understand and answer it. There’s other things, too. He can type out simple sentences, but has a very poor grasp of spelling, frequently getting very simple words wrong (think different versions of there, their, and they’re). It’s genuinely baffling how he got to that point, but he also hasn’t ever really published material and it kinda makes sense why. Dude has a doctorate in a STEM field and I think the reason for that is that he can understand mathematics, but literally can’t understand complex writing. Any idea that takes more than a single sentence to explicate just evaporates out of his head.