A Zettelkasten is not PKM, it's a "tool for thinking"
I read Niklas Luhmann's article, "Communicating with Slip Boxes", for about the 50th time. I finally came to this simple revelation.
Here's why it matters in how you organize your "notes".
He wanted his slip box to surprise him.
He wanted his slip box to be independent.
He wanted his slip box to be a communication partner.
He wanted his slip box to provide patterns of thoughts he didn't plan for.
To do this, he opted for a more chaotic, open-organization approach. He organized his 90,000 only through Sequencing, Linking, and Indexing.
He felt that thematic structures will only get in the way of his goal.
Here are 3 reasons why.
Top-down structures are useful in mapping out knowledge. But, it's not useful in generating new knowledge (or surprises).
He'd rather read his notes like a choose-your-adventure book, not a book he already knew the ending to.
He didn't love the complexity of a high-level structure, as it'd be a nightmare to maintain in the long haul. (i.e. What happens when a note breaks a category?)
To sum up: this technique guarantees that its order which is merely formal does not become a hindrance but adapts to the conceptual development. - Niklas Luhmann (transl. Manfred Kuehn)