  Some scholars think that the Stranger extends his machinery to include negative predication, as well as non-identity, at the end of the section on great kinds. He appears to switch his focus from the subject-kind to the attribute, since he speaks of being and not-being “about” the subject. He sums up his conclusions about change and generalizes to other kinds saying: “And so necessarily not-being applies to (epi) change and to (kata) all the other kinds” (Sophist 256d); and then: “So about (peri) each of the forms the being is much and the not-being is unlimited in multitude” (Sophist 256e). Some scholars take the not-being applicable to change to include negative features (e.g., not quick) as well as kinds it differs from (e.g., rest) (for interpretations of this sentence, see McDowell 1982 and Frede 1992).