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 have it the other way around. I recognize the fuck out of people and can never remember their names. I can be like “Oh yeah, that’s the dude that so-and-so introduced me to at that BBQ in the park 10 years ago. It was cold that day for fall, he said he was good at the piano. His name? No fucking idea”
Like I can remember so many details about so many things. Names? In one ear and out the other. You could shake my hand and tell me your name and I wouldn’t remember it after a 3 minute conversation. But I could repeat everything else about the conversation directly back to you.