> One question I have is why have Kelvin sign that is distinct from Latin K and other indistinguishable symbols?

To allow round-tripping.

Unicode did not win by being better than all previously existing encodings, even though it clearly was.

It won by being able to coexist with all those other encodings for years (decades) while the world gradually transitioned. That required the ability to take text in any of those older encodings and transcode it to Unicode and back again without loss (or "gain"!).

Mostly because that's the part that had the best developed theory so that's what tended to be taught.

The rest of the f*cking owl is the interesting part.

Almost certainly not that old. Around 2500-2000 years old.

It's really an ML with type classes and a better syntax (and a non-stupid module sublanguage) that also just happens to be more C-like.

People move a lot between those "buckets" over their lives. It's not the same 1% decade after decade.

Can he build more advanced concepts on top of the ones he supposedly masters?

Can he do that well?

Is he likely to continue to be able to do that as he progresses to the stuff that is actually hard?

(My guess is that the answers are yes (so far), no, and definitely not.)

Take slow processing is a really good symptom of something that needs more practice time.

Speed is a remarkably good proxy for fluency.

An excellent way to git gud at something is to do timed practice again and again. Aim for 100% correct answers AND for fast answers. Answers that took to long should be identified and practiced again (and maybe some of the theory should be re-read or read from another textbook).

Don't settle for 100% correct during practice.

You didn't have both? Scrap for trying out ideas, double-checking, making mistakes and then "blue books" for the stuff you hand in (with the answers + all the steps you choose to show).

No need. I just X'd out failed approaches. There were always plenty of pages in the blue book.

I have a really bad episodic memory and my sense of hunger stopped working normally in my teens. It's got nothing to do with anything else.

The US is a ridiculously litigious country. It could end up being very, very expensive if they did their own assessments, even if they hired doctors to do so.

It is more litigious than the UK, but UK universities have Special Educational Needs specialists. It would be very very unusual for a family doctor (what we would call a General Practitioner) to be willing to make a diagnosis on this, they would insist on referring you to a specialist, although in many cases that may not be a medical doctor at all. ADHD, Nuerodiversity, Dyslexia are all assessed by specialists. In all professions it is considered unethical to act outside of your area of competence...