This is a fun exercise. I'm still new to Zettelkasten with less than 100 notes in my Obsidian. One thing I learned while listening to Metamuse podcast episode with Andy Matuschak was the idea of using the Random Note plugin in Obsidian to generate two random notes side by side and try to make a connection. Since these are completely random, we may run into lot of noise where drawing a connection between those notes would not make any sense. There is, however, another plugin in Obsidian called Smart Random Note where you can apply filters (like, a random note in a particular folder, or a random note containing a particular tag, etc.) These can be a little more powerful to form connections where having two random notes of orthogonal topics side-by-side and then trying to form a connection.
As I've put a lot of time into thinking about note-taking systems over the last year, I love seeing the work you've been doing! It strikes me that this is essentially a brainstorming method (which isn't the only justification for using interlinked notes, but seems the most prominent).
It also occurs to me that the justification for the idea that Zettelkasten is a great brainstorming method is that some great thinkers used it, and credited it for their output, and so we might hope that it is the mechanism that produced their genius.
An alternative explanation, though, and one that I think is more plausible, is that Zettelkasten mediated their pre-existing genius, in conjunction with the context of their careers, in order to make their output possible. A (perhaps) necessary but probably not sufficient input for generating compelling writing in a handful of cases.
I like Obsidian and interlinked notes, in conjunction with a lot of other note-taking strategies I've developed, because it makes it vastly easier to extract and navigate relevant information from textbooks and articles. It's not exactly necessary, and it's certainly not sufficient, but I think it's been really helpful. Not only has it helped me learn individual topics, it's also helped me actually learn how to learn.
It certainly took an interesting intellect to develop a system like the Zettelkasten, though I'm not sure to what extent Luhmann credited the invention with his prolific success vs. having it attributed later as advertising hype. I would of course love to ape his success as a thinker, although I think another factor in that might be that my interests are spread further out, while his seemed to cluster around the social science he liked to write in.
And I'm not sure brainstorming is the right concept. I might brainstorm the solution to a specific problem I'm having, whereas with a Zettelkasten I'd build something shaped like a solution and then look for problems to use it on. There's an element of play to it, too, in making the ideas dance with each other. It's like seeing what kind of keys you could make with what's available vs. trying to get back in when you've locked yourself out of the house.
That said most of what I did in this post was brainstorm, so I think a lot of building those keys comes down to brainstorming anyway and that the system just gives you a bunch of starting points for doing that.
That's an interesting perspective. I would normally lump both those purposes (concrete problem-solving vs. playful solution-imagining) under the heading "brainstorming," but they really are quite different mental maneuvers. Since life forces concrete problem-solving upon us, it might be particularly valuable to name playful solution-imagining in order to highlight it as a thing you can do. If concrete problem-solving is "brainstorming," maybe this is "brainsplashing?"
Interesting!
My experience has been very different so far.
I want to see if I've hit diminishing returns or if original insights are still available with this method.
I am not sure what exactly you try to achieve by cutting down on the number of nodes. Are you dissatisfied with the number of connections you make between your notes or do you feel that the method is losing its novelty for you?
For me, coming up with connections is easy. Noticing connections between different ideas feels really rewarding, and this is the main reason it has stuck with me so far. Cutting down becomes the hard part. Principles/heuristics for note-taking, like "in what context do I want to see this again?", have helped me with that. But it might also be that this effect is mostly due to me using this method for only 3 months, and the novelty will wear off eventually.
I cut down the number of nodes because I felt like the project would be too tedious at scale, and having a handful of very fruitful nodes would make it harder to show if the rest of them weren't doing anything.
I'm not sure I would say the method's lost its novelty for me, since it's more of an afterthought to note-taking usually, but I've found it unrewarding to look at this web of concepts swimming together and not get any eurekas out of it. It's possible that cutting the chaff out might produce a tighter web that makes more meaningful connections, but this seems like a very daunting housekeeping project if I can really do it at all.
Drawing connections between Zettelkasten-style atomic ideas is better to me than full-throated complicated ones, and that's where I'd apply the virtue of narrowness - if you try to smash whole fields together you get new fields less often than smashing ideas together generates new ideas.
Motivation and Method
I read the book How to Take Smart Notes a couple years ago and have tried to keep my notes together in a Zettelkasten ever since. I currently use Obsidian, which contains 2500 individual notes collected over two or three years - some abstract to encourage being hooked up to anything and some as concrete as possible to attain specific insight.
However, despite the enjoyment of keeping my notes in one place and looking at all of them in a big network, very few of my additions have come from connections between notes. I want to see if I've hit diminishing returns or if original insights are still available with this method.
To that end I'm generating 25 random numbers between 1 and 2500, collecting the results to make a toy Zettelkasten a hundredth the size of the full one, and seeing how many meaningful ideas can be developed from it. Playing fast and loose with priors here, a graph with 25 vertices can have a maximum of 300 edges, and by Sturgeon's Revelation I'd expect only 10% of these to be good. So: if I find 30 worthwhile connections or products, I'll be satisfied.
Now to roll.
The 1%-Zettelkasten
Combinations
Verdict
I have 29 results, which is suspiciously in line with such an off-the-cuff prediction, so there's probably some motivated stopping here - take it as my having reached the finish line, not testing to see how much can be produced in total.
The prediction I made doesn't quite hold anyway, because a Zettelkasten in the wild would also include connections between these new results and the old ones. I didn't consider that at the start, but in hindsight I'd expect there to be further, diminishing growth from here.
The usefulness of these combinations might be questionable, as are the original 25, but I don't curate my notes very heavily and take them on many subjects. It might also be leveled that my connections are not fully connective, or that they introduce too much outside information, but I remain skeptical that trying to undergird extremely disparate fields will lead to anything other than statements of the obvious or category theory.
All in all, I'm surprised to see this working. At first I found almost no combinations at all, and it was only through specific effort that I produced most of these. It took probably two hours distributed across a couple of days to generate all 29, which implies that the kind of work I'm doing here takes more energy generally than reading off a list and being struck by inspiration. Mulling over connections this way isn't the best use of my time, typically, but I'm glad to see that it works roughly as advertised.