Returning to the first point about predicate-individuation, Davidson claims that “it is just the predicates which are projectible, the predicates that enter into valid inductions, that determine what counts as a change” (Davidson 1995a, 272). We know from Nelson Goodman’s ‘new riddle of induction’ (Goodman 1983) that we can invent predicates, such as ‘grue’ and ‘bleen’ (where an object is grue if it is green and examined before 2020 or otherwise blue, and an object is bleen if it is blue and exa