I think the way our memory works shapes a lot of what we become. I can remember numbers, algorithms, weird words and 3D shapes. But struggle with music (piano),

I think the way our memory works shapes a lot of what we become. I can remember numbers, algorithms, weird words and 3D shapes. But struggle with music (piano), names, what I did a week ago, and what your birthday is. That shapes what I become interested in, because I can't progress my abilities if I can't remember. E.g. I could hit keys at the piano, but I could never remember ("have a feel for") the music I was playing. And I lost interest. Another example is chess. I always sucked at chess, because I can't remember opening books, prior games and other useful information. It both means I can't progress in games, and that I'm not fun in a social chess setting. What I'm proposing, I guess, is that IQ tests are really judging what type of information you can remember/recall. E.g. extending number series: you can solve them either by remembering rules you can apply, or instances of them you've seen before. If you can remember instances, you'll be named a prodigy because you can do it much faster than learning rules. If you tend to remember instances, you'll probably want to continue finding examples to learn, as a dopamine hit.