All you need is links
Summary
Using only links, its possible to reconstruct all other forms of structure in the tools of thought space.
A folder is just a list of links. A tag is just a list of links. Comments can be links. Triplets can be links. Everything can be a link.
Thoughts
Simple systems that come together to create complex behavior are generally more resillient than complex systems that create complex behavior.
This plays out a lot in technology. RISC vs BASIC, C++ vs Go, etc.
Sometimes though, complexity is needed (eg. Rust). Sometimes it is not (eg. Angular).
There's always a balance to be struck but when in doubt, favor simple systems that be composed to create more complicated behavior.
It would be interesting to see how far we could build a system that was just links. And what the limits are.
CSS3 and Rust are both turing complete - I would not want to do coding with CSS3