I think something like a Wikipedia graph of concepts but more directed and targted at an audience with a specific educational level (e.g. Calc I) could be usefu

I think something like a Wikipedia graph of concepts but more directed and targted at an audience with a specific educational level (e.g. Calc I) could be useful. I used to think this would be the future of education, but a major issue compared to the linear format is getting the right level of context and that it's dependency hell.