I’m new to Obsidian so maybe there is a way to do this.
A powerful feature for any knowledge management system would be to enable linking at different levels of abstraction/granularity.
A map is a higher level abstraction of a territory. Navigation is a mix of operating at the higher level map level and the lower level territory level.
The same seems to be true for any knowledge system. There is the whole and the parts and zooming in and out of both is important.
As best as I can tell, Obsidian organizes notes into titled pages. A page aggregates linked and unlinked contet. Links help to form connections between other pages. So when you look at the graph, you see the pages and the links between pages. But what if you want to get more meta? What if, for example you want to create categories of pages and link the page categories rather than the pages themselves? Imagine changing the level of abstraction so you can briskly move between knowledge areas where each knowledge area contains many pages.
Put differently, imagine creating abstraction layers on your data with each layer capable of linking between the other entities at that layer.
One implementation might be extending the functionality of tags. Right now, tags help to group multiple notes. But how cool would it be if you could create a graph of your tags and create links between the tags. Then you could zoom between aggregations and see their connection and also zoom into any given set of aggregations.
So, best I understand, Obsidian enables lower level linking but there is an opportunity for linking at a higher level of abstraction (e.g. at the tag level).
What do people think?