On the process of making MOCs

I’ve been following the nicely written Zettelkasten guide here by @lizardmenfromspace and it gave me a thought that helped clarify to me more the difference between indices, TOCs and MOCs. He mentions,

Adding to this @Meins understanding of MOC vs TOC being the fact that the former is a live document while the latter is finished. So it become more of a status based difference.

My present understanding of the concept of MOC was more like a perspective on existing info, much like perspectives in Omnifocus, which allows to narrow focus down to those notes (or sections of notes) which pertain only to the topic at hand. Another analogy might be creating custom maps in Google maps to plan for a trip. The existing myriad of information in google maps I see narrowed down to only the places pertinent to my trip. In that way, it offers me only actionable info whereas an index would give me all countries/cities.

I’m trying to bring it all together and form a coherent definition. So far, I think an Index is an alphabetically sorted comprehensive list. A TOC is thematically organised list which is finished (as is an index). And an MOC is a live, fluid list somewhere in between those two (leaning more towards themes) which can be used for specific purposes like a writing project or planning something. It exists to allow working with a subset of all KM by reorganising them to suit the purpose at hand but without taking away any existing structures inherent in the system.

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