 Reply: Similarity relations satisfy only restricted forms of LL. How then do we tell which properties are preserved by the same shape relation and which are not? It is no objection to the thesis that identity relations in general preserve some properties and not others to demand to know which are which. At best the objection points to a problem we must face anyway (for the case of similarity). In general, a property is preserved by an equivalence relation if it “spreads” in an equivalence class determined by the relation: If one member of the class has the property, then every member does. Every property spreads in a singleton, as absolute identity demands.