What it is, and who made it
PARA is the organising scheme Tiago Forte introduced on his blog in 2017 and canonised in Building a Second Brain (2022): four top-level folders, Projects, Areas, Resources, Archives, applied identically across every tool you use. The insight is the sort key. Filing by topic asks a question with no urgent answer (“where does this belong in the tree of knowledge?”); filing by actionability asks the only question that matters at speed: how soon will I act on this? A project has an end date and current momentum; an area is a standard you maintain indefinitely; a resource is interest without obligation; the archive is everything cooled. The canonical write-up is at fortelabs.com.