This is a card in Dave's Virtual Box of Cards.
Links as information
If cards (small, hyperlinked notes) are nodes on a graph, then the hyperlinks between them are the edges of that graph. This is not a novel idea.
But slightly less obvious is that these edges themselves contain informational value. Perhaps a lot of it.
In the context of a zettelkasten, from "Why You Should Set Links Manually and Not Rely on Search Alone":
The idea that makes you create a link is unique, and so is the resulting link.
You can annotate the link to remind your future self of the context.
I’m pretty sure I read something similar by Tim Berners-Lee in his book, Weaving the Web. But I’d have to track that down.