For me it’s time signatures in music. I grew up playing instruments, played in several orchestras, etc. But no matter how many times someone tries to explain time signatures to me, it makes no sense. I don’t understand why people place such importance on it. To me, notes have a pitch and a duration, maybe some dynamics. That’s it. I don’t understand why people try to needlessly complicate it. It doesn’t give you anything.
My wife will hear a song and go “Oh neat, it’s in 5/8.” And I’m like “How tf do you know that, and why does it matter?”
I can completely relate. Additionally my specific standards also make it very bad.
I found out that I’m an Autist so for me it at least explains things but is also totally not helping to know.
Nevertheless I do not know for sure if all of this isn’t totally normal, as in the regular human experience. The older you get the more difficult it is to find and hold friends.