Evergreen notes are written to evolve, not to file

Most notes are write-once. You jot a meeting summary or a book quote, file it under a date, and never open it again. It captured a moment, not an idea, so it can't grow — and a year later it's archaeology, not knowledge. The format guaranteed it would rot.

Evergreen notes are built the other way. The term comes from Andy Matuschak: each note holds one concept, carries a title that states a claim, and gets rewritten as your understanding improves rather than frozen at first draft. Because each one is atomic and concept-titled, it can be linked to anything else it touches — which is exactly why Knowledge compounds when it's linked, not just stored. And because you revise instead of restart, the note sharpens toward A good explanation is hard to vary over time.

This very collection is built that way. Every note here is meant to be reopened and improved, not entombed — that's what makes it the notes web rather than an archive.

Next: shape your thinking so a machine can check it, because Structure beats freeform text for working with AI.