 Whether we are talking about alethic rigidity (designation of the same individual with respect to other possible worlds) or temporal rigidity (designation of the same individual with respect to other times), a commitment to rigidity will be attended by similar sorts of metaphysical and epistemic commitments. Here it will do to indicate briefly some ontological commitments. Just as recognition of alethically rigid designation carries with it a commitment to some sort of transworld identity (discussed later), so the recognition of temporally rigid designation carries with it a commitment to some sort of “transtime” or transtemporal identity. Similar alternatives to rigidity are available to theorists who oppose rigidity. Hence, if we adopt the ontological position that individuals are instantaneous so that we find it natural to think in terms of the “stages” of you since, although the stages are not identical, they’re similar and ordered in relation to one another spatiotemporally or causally, then we might naturally take names like yours to range over different instantaneously-lasting individuals, and so conclude with Varzi (2003, p. 387), that “the rigidity claim can’t be right and a counterpart-theoretic semantics seems required.”