there’s no way to structurally collapse the terms into a hierarchy, so that one can just browse “self improvement”—which might include akrasia, health, and improving personal rationality skills as subtopics.
You could have a system where the tag “akrasia” is marked as a subtag of “self-improvement”, so that any article tagged with “akrasia” is implicitly tagged with “self-improvement”.
You could have a system where the tag “akrasia” is marked as a subtag of “self-improvement”, so that any article tagged with “akrasia” is implicitly tagged with “self-improvement”.