reply to IvanCyb at https://www.reddit.com/r/antinet/comments/1587onp/comment/jt8zbu4/?utm_source=reddit&utm_medium=web2x&context=3 Asking broadly about indexing methods in zettelkasten

When you begin you'll find yourself creating lots of index entries to start, in part because you have none, but you'll find with time that you need to do less and less because index entries already exist for most of what you would add. More importantly most of the entries you might consider duplicating are likely to be very near cards that already have those index entries.

As an example if you have twenty cards on cultural anthropology, the first one will be indexed with "cultural anthropology" to give you a pointer of where to start. Then when you need to add a new card to that section, you'll look up "cultural anthropology" and skim through what you've got to find the closest related card and place it. You likely won't need to create a new index entry for it at all.

But for argument's sake, let's say you intend to do some work at the intersection of "cultural anthropology" and "writing" and this card is also about "writing". Then you might want to add an index entry for "writing" from which you'll branch off in the future. This will tend to keep your index very sparse. As an example you can look at Niklas Luhmann's digitized collection to notice that he spent his career in the area of "sociology" but there are only just a few pointers from his index into his collection under that keyword. If he had tagged every single card related to "sociology" as "sociology" in his index, the index entry for it would have been wholly unusable in just a few months. Broadly speaking his entire zettelkasten is about sociology, so you need to delve a few layers in and see which subtopics, sub-subtopics, sub-sub-subtopics, etc. exist. As you go deeper into specific topics you'll notice that you branch down and out into more specific subareas as you begin to cover all the bases within that topic. If you like, for fun, you can see this happening in my digital zettelkasten on the topic of "zettelkasten" at https://hypothes.is/users/chrisaldrich?q=tag%3A%22zettelkasten%22. The tool only shows the top 50 tags for that subject in the side bar, but you can slowly dig down into subtopics to see what they look like and a bit of how they begin to overlap.

Incidentally, this is one of the problems with those who tag everything with top level topic headings in digital contexts—you do a search for something important and find so much that it becomes a useless task to try to sift through it all. As a result, users need better tools to give them the ability to do more fine-grained searching, filtering, and methods of discovery.

The classification is anything but indifferent. The manner of shelving the books is meant to impart certain suggestions to the reader, who, looking on the shelves for one book, is attracted by the kindred ones next to it, glances at the sections above and below, and finds himself involved in a new trend of thought which may lend to additional interests to the one he was pursuing.<br /> —Claudia Wedepohl on the design of Warburg's library, [00:44:19] in Aby Warburg: Metamorphosis and Memory

Provides a similar sort of description of the push towards serendipity and discovery found in one's zettelkasten as well as that in Melvil Dewey's library classification and arrangements.

Beatrice Webb sees the primary uses of notes as a memory device and a discovery device.