As a kid I felt algebra >> geometry (like I want to divide an angle by three and why waste my time with a system that can't! sure you can learn what a system can and can't do but that can be taught more directly with examples from computing) so as much as I read about Elements in math books by the likes of Martin Gardner it struck me as serious malpractice that "Great Books" advocates wanted kids to read it. (It's better than reading Newton's Principia if you want to learn physics or calculus though...)

I like what that site is trying to do but the upper levels don't communicate the affordances you would find if you drilled in. Also there is graph structure in Elements that I don't see visualized; also Elements uses a lot of weird vocabulary that would be a lot easier to deal with if it were hyperlinked to a glossary.

I've been interested in old Asian texts like the https://en.wikipedia.org/wiki/Kojiki and https://en.wikipedia.org/wiki/Romance_of_the_Three_Kingdoms where I have, charitably, 5% reading comprehension of the language but could get a lot with the graph structure materialized (like the chain of succession from Amaterasu to the Emperor) and also would like to see the original text, plus human-generated English translation if available, LLM-based translations, links to properly resolved characters and words in the dictionary, etc. (Right now I am digging into about 800,000 images with Chinese language metadata with some crude tools, really just getting out named entities makes me tickled pink.)