You’ll probably get a variety of answers here, from “No tree! That’s what links are for!”, to “Johnny Decimal: each layer should have at most ten leaves”, to “No rules! Let it evolve naturally.” I’ve tended to go with a combination of limiting leaves and letting things evolve.
But I think the most important consideration is to think about whether the structure makes sense to you today, and more importantly, will it make sense to future you? Sometime down the road, you’re going to want to find your note on Gender Performativity, either to refresh yourself on the key ideas in the note or to link it to something else. I see a good PKM structure as one that maps to your brain and the way you would try to recall it:
- Just hit the search box?
- Start with Philosophy and poke through the layers below until you find it?
- Go to a Queer Theory MOC and read through the index you’ve created?
When you don’t have a ton of notes, these differences seem trivial, but over time you may find that you’ve actually got dozens of notes that all dance around the same topic, and you’re looking for that one particular thought, and you know it’s in there somewhere among all the rest. I see a MOC as a place where you create pointers to highlight your favorite notes, and in particular to leave a breadcrumb trail to your future self.
When I first started creating a tree a year ago, I struggled with getting it just right. Now that it has some structure, I see the structure itself as part of the magic of helping me know where everything is. I’m building and using the network, and if I can trust that it will be with me 10 or 20 years from now, the paths through the network will be easy for me to navigate.