

The same reason mensa is a thing. People like to toot their own horn.
Fair enough, I’ve also at one point been 13 and done a bunch of useless online IQ tests. Never studied for them, they seemed like mostly simple pattern recognition and general logic questions, which I’ve never really thought you could even study for.
To a certain extent yes, but no one can be an expert at everything. There just isn’t enough time, and expertise is really what society rewards people for at the end of the day.
Absolutely. But general intellect, as far as I can tell (and maybe my understanding of it is wrong), is what influences your ability to shift to a new field and gain expertise in that. Years alone don’t cut it. In my own field, I’ve seen software engineers who can’t program for shit, let alone make any architectural decisions after a decade - and ones that are pretty competent after 2-3 years. Now imagine you’re 10 years into a career and it starts becoming less and less relevant due to changes in society. If you’re naturally intelligent, you’re both 1) more likely to have learned more from your 10 years than others have, so more valuable for longer, and 2) more likely to be able to switch to an unrelated or semi-related career path and become useful in a shorter amount of time.
Of course it gets more complex than that because general intellect doesn’t span ALL skills. In fact, it’s more like ranges of aptitudes. I have great aptitude for STEM, pretty decent aptitude for languages, and absolutely none for arts. No drawing, no singing, etc. No matter how much practice I get and how much practice I got in my childhood. There’s just skills I won’t learn in 10 years of practice, and skills I pick up rapidly, and it’s been that way since childhood.
Hell, maybe general intellect isn’t a thing after all.
I think IQ in particular unfairly prioritizes understanding of language and logic, over artful skills and, e.g emotional intelligence (which is measured by EQ I guess). It’s a pointless measure. My main point that I wanted to make was that some people are naturally more gifted, and just faster learners, than others. There’s people from good families who have never suffered from malnutrition or emotional abuse and went to good schools, who aren’t all that smart, and people from far worse backgrounds who are geniuses. Something must be contributing to that. If not genetics, then what? At the same time, yes, people from emotionally healthy families with no financial issues, are more likely to be successful in school as well as life in general.
It’s on Windows too, no need to download an emulator or support Nintendo. Only need Proton or just Wine.