Each concept is read twice: whether the approach carries it, and whether the approach's own sources claim it. A concept that is absent and was never claimed is a gap in the field rather than a failure of the work, and is marked out of scope.
Norm entrepreneurs
AbsentNot claimed · out of scopeDefinition · Cass R. Sunstein, Social Norms and Social Roles (1996)
Individuals or groups who deliberately campaign to change a norm — making the previously unsayable sayable — and can trigger cascades in which the whole population flips.
Analysis
The bridging score asks whether raters who habitually disagree both call a note helpful, which is exactly the test a campaigner fails: a note pressing what one side is not yet willing to say gets no cross-camp endorsement and is never shown, and for 91% of posts with a proposed note nothing is displayed at all. Supernotes does introduce an authoring agent, but it is a model told to fuse existing notes into a text a diverse rater panel will approve — drafting toward what is already shared rather than making the previously unsayable sayable. The temporal proposal treats a population's movement as a quantity to re-estimate, with no actor inside the loop pushing for the change and nothing that registers a cascade or a population flip. No source asserts or implies norm entrepreneurship; the advertised benefit is broad acceptance, which does not depend on it.
Committed-minority tipping
AbsentNot claimed · out of scopeDefinition · Empirical norm dynamics
A small group that refuses to budge can, past a threshold, flip the majority's convention. Custom is not only majority rule: an unwavering minority is a live force in how norms move.
Analysis
Selection requires endorsement on both sides of the learned rater divide, so a note an unwavering faction stands firmly behind while the other side rejects it cannot surface however committed its backers are — the mechanism is built to screen that case out. What the design does hand a minority is the mirror image of tipping: a coherent dissenting group can withhold the endorsement a note needs, so numerical majority alone cannot get one shown. That is a veto over one post's annotation, not a threshold past which holdouts convert the majority, and the temporal proposal models change as gradual re-estimation of a moving target rather than as a flip. Nothing in these sources claims minority-driven tipping, and the bridging story does not entail it.
Prescription and desuetude
AbsentNot claimed · out of scopeDefinition · Edmund Burke (1790); civil-law doctrine
Customs gain authority from long usage (prescription) and lose it by falling out of use (desuetude). Age and practice — not enactment — are what make a custom binding, and what unmake it.
Analysis
Neither half of the mechanism appears: nothing here gains standing by having lasted, and nothing loses standing by going unused. A note's status is re-derived from the current cross-section of helpfulness ratings each time the factorization is refit, so age confers no privilege — recency does — and when a note loses its shown status it loses it to fresh adverse ratings, which is judgment on the merits rather than lapse through disuse. Supernotes' scorer consumes millions of historical ratings, but as training material for predicting present approval, not as authority earned over time; and because each note attaches to a single post, no practice persists long enough for either prescription or desuetude to operate. The proposal's contribution is that the target moves and must be re-measured — a temporal variable, not authority through duration — and no source reaches for the tradition's vocabulary.