Conservation, discontinuous time, andcausal continuity

William Vallicella poses a dilemma for continuous-creation accounts ofconservation, which he attempts to solve by conjoining presentism andfour-dimensionalism. I claim that presentist four-dimensionalism fails toappreciate the real problem behind continuous creation and persistence, whichis a presumption of the discontinuity of time. I will argue that if we assume thattime is discontinuous, then, (1) presentist four-dimensionalism cannot aloneaccount for persistence, and (2) created entities are also not in clear need ofconservation in Vallicella’s solution. Lastly, I conclude by suggesting that theworry over persistence for continuous creation is a problem only if persistencerequires causal continuity