Did you mean to leave a footnote to Luhmann's Zettelkasten system?
I had never heard of it, but I found this article about it: https://medium.com/emvi/luhmanns-zettelkasten-a-productivity...
I had never heard of it, but I found this article about it: https://medium.com/emvi/luhmanns-zettelkasten-a-productivity...
This post is quite good aswell: https://www.lesswrong.com/posts/NfdHG6oHBJ8Qxc26s/the-zettel...