Folk Taxonomy

Roles: specimen, kind, marker, pedigree, classifier, false-positive, identification

The everyday practice of sorting things into natural kinds based on observable characteristics rather than formal genealogy or declared membership. Folk taxonomy identifies a specimen as belonging to a kind when it exhibits the expected behavioral or perceptual markers: if it walks and quacks, call it a duck. Pedigree (lineage, formal declaration, ancestry) is bypassed in favor of observable fit. The frame is structurally interesting because it makes identification an abductive inference — the classifier works backward from observed markers to the most plausible kind — and because it creates a characteristic failure mode where false positives pass the behavioral test while differing in ways the markers do not capture.

As Source Frame (1)