A good title compresses an idea down to something you can use in argument without reopening the full note. When [[Accessibility is the first rule of functionality]] appears as a link, that claim travels with its full meaning attached. You don’t have to re-explain it every time you need it. The title becomes the abstraction for the note. [[UID are not needed in digital Zettelkasten]] because a claim-based title functions as a handle that slots into another note’s argument naturally, carrying meaning that a number never can.
[[Evergreen notes should be atomic]] is the precondition: titles can only function as precise references when the scope is narrow enough to make the claim specific. A note that holds too many ideas produces a title that’s either too broad to be useful or too narrow to be honest about what’s inside.