A Zettel is one atomic note or index card in a Zettelkasten, holding a single idea. Think of it as separation of concerns for knowledge: one thought per card. section 2.4.2
Zettels become useful through their connections:
- Numbered links support continuation, such as 32 followed by 33. section 2.4.2
- Branching adds related detail without changing the original note, such as 32a or 45/7a/21b. section 2.4.2
- Keyword index cards point toward larger themes and help reconstruct an idea by following trails. section 2.4.2
From filing cabinet to fuzzy search
A physical Zettel might sit in a drawer among handwritten cards. In Obsidian or Zettlr, a unique filename can replace its number, while fuzzy search helps retrieve it. section 2.4.2
Figure 2.6 An example of the linking capabilities of Luhmann’s method. Zettel 1,5A2b, as seen in https://niklas-luhmann-archiv.de/bestand/zettelkasten/zettel/ZK_1_NB_1-5A2b_V.
Inspect how an unusual identifier demonstrates branching and linked continuation. section 2.4.2
