I read the article on Taylor series. I think the best evidence that it was a good explanation is that at the end, I thought, “Duh. This stuff is all obvious. When does he get to the hard part?” Note, I’d never heard of Taylor series, and I am not a savant.

Tangentially, I remember a woman explaining Fibonacci numbers in a youtube video with sunflowers and pineapples about 8 years ago. Her handle was something like “the nerd girl” or “mathchick”. I can’t seem to find it again. Does this ring bells for anyone?

Edit: I should have tried harder before asking. https://m.youtube.com/watch?v=ahXIMUkSXX0