Temporary Safety Hazards

Abstract

TheEpistemic Objectionsays that certain theories of time (like the “growing block” and “moving spotlight”) imply that it is impossible to know which time is absolutely present. Standard presentations of the Epistemic Objection are elliptical—and some of the most natural premises one might fill in to complete the argument end up leading to radical skepticism. But there is a way of filling in the details which avoids this problem, using epistemic safety. The new version has two interesting upshots. First, while Ross Cameron alleges that the Epistemic Objection applies topresentismas much as to theories like the growing block, the safety version does not overgeneralize this way. Second, the Epistemic Objectiondoesgeneralize in a different, overlooked way. The safety objection is a serious problem for a widely held combination of views: “propositional temporalism” (objects of belief change truth‐value) together with “metaphysical eternalism” (the world does not objectively privilege any particular time).