There has been a growing worry that perdurantism—and similarly ontologically abundant views—is morally untenable. For perdurantism posits that, coinciding with persons, are person-like objects, and giving them their moral due seems to require giving up prudentially driven self-sacrifice. One way to avoid this charge is to adopt consequentialism. But Mark Johnston has argued that the marriage of consequentialism and perdurantism is in moral trouble. For, depending on the nature of time, consequentialist perdurantists either are unable to do more than one (...) good act or they are morally obliged to adopt a repugnant form of ageism. I argue both that perdurantist consequentialism doesn’t have the latter implication, and that there’s at least one plausible form of consequentialism that perdurantists can adopt to avoid the former implication. (shrink)

Material objects extend through space by having different spatial parts in different places. But how do they persist through time? According to some philosophers, things have temporal parts as well as spatial parts: accepting this is supposed to help us solve a whole bunch of metaphysical problems, and keep our philosophy in line with modern physics. Other philosophers disagree, arguing that neither metaphysics nor physics give us good reason to believe in temporal parts.

According to Perdurantism, persons are identical to maximal aggregates of appropriately interrelated temporal parts. Within the Perdurantist framework, an epistemic concern arises, targeting the perduring persons’ belief that they are persons, suggesting that, ultimately, they are not in a position to know that they are persons as opposed to temporal parts. Despite the consideration it has received over the years, this concern has not yet been converted into a full-fledged objection. This paper aims to address this gap by exploring the (...) possibility of formulating a coherent Epistemic Objection against Perdurantism. We shall examine several epistemological principles around which such an objection might be built, arguing that none of them, in the end, allows a plausible formulation of the objection. As a result, we shall conclude that the burden of proving that in a Perdurantist setting persons are not in a position to know that they are persons rests with the objectors. (shrink)