What an amazing accomplishment! Bravo.
I find typography resists my attempts to wrap my head around it, because even though I can do basic analysis like serif vs sans serif, I get a sort of brain fog when it comes to telling fonts apart or intuiting which fonts to use in different situations.
It's really hard to wrap my head around the idea that one person could make 175 fonts and that they would each be meaningfully different from each other. Like, how does one not accidentally recreate the same font?