You can be smarter than you are now. Effort will reward you. Take a peek at the growth mindset. I think Hubberman did a podcast on it, and his content is usually of good tier.

Fortunately containers can get bigger =)

While we aren't all the same, there's a difference between things that require holding 8 complicated things in mind at once, and things that require a little language learning and the intelligence to solve a crossword. This is closer to the latter - like doing a crossword in Spanish. You need to know a bunch of little things, but learning them is basically all tedium and not brilliant insights. (Taking these puzzles, creating a dozen new variants, and solving all of those probably does require managing a lot of complexity. But to understand the work of others, is not so bad)