According to A-theories of time, the metaphysical ground of change and dynamicity is provided by a continuous shifting in which events are past, present and future (A-determinations). It is often claimed that these theories make better sense of our experience of dynamicity than their rival, the B-theories; according to the latter, dynamicity is grounded solely in the irreducible earlier-than relations (B-relations) which obtain between events or states of affairs. In this paper, I argue that the experience of time's dynamicity, on (...) the contrary, cannot be accounted for solely in terms of representations of irreducible A-determinations, because any representation which is adequate to ground these experiences must itself involve representation of irreducible B-relations, while it needs not involve representation of A-determinations. Even if, as a matter of contingent fact, our experiences of dynamicity consisted of representations of successions of A-determinations, what would account for them being experiences of dynamicity would be solely the B-theoretic relations of succession, rather than the irrelevant A-theoretic nature of the relata. (shrink)

The arena of the philosophy of time has been largely concerned with deciding whether tense distinctions reflect absolute metaphysical distinctions or not. After bringing the debate over the metaphysical status of instantaneous velocity to bear on the debate over the nature of temporal passage, I argue that we should further investigate whether aspectual distinctions reflect objective and absolute metaphysical distinctions too. I conclude that those who think that being realist about tense uniquely makes room for the idea that time passes (...) should be realist about the progressive too. (shrink)

Temporal ersatzism is the view that past entities exist, but are not concrete. The view is analogous to modal ersatzism, according to which merely possible worlds exist, but are not concrete. The goal of this paper is to give the reader a sense of the scope of available temporal ersatzist views, the ways in which the analogy with modal ersatzism may be helpful in characterizing and defending those views, and the sorts of considerations that are relevant when evaluating particular versions (...) of temporal ersatzism. (shrink)

ABSTRACT This essay is an introduction to Time and Reality I, the first part of a special issue dedicated to the philosophy of time. Here I outline a number of new trends in philosophical theorizing about time, detailing how the various contributions fit into the picture. I argue that there has been a potentially misleading tendency to separate the debate over the passage of time from the debate over the reality of tense. This has obscured a number of interesting philosophical (...) questions. One of the aims of this volume is to bring these two issues together, where they belong. I argue that many contributions to it go in the right direction. The contributions to this volume also establish uncharted philosophical junctures between Metaphysics, Aesthetics, Morality, and the Philosophy of Mind. (shrink)

Presentists claim that only presently existing objects exist. One version of presentism is ersatzer presentism, according to which times are a kind of abstract object. Such a view is appealing because it affords the presentist an answer to the grounding objection—a potentially lethal objection to presentism. Despite this advantage, available versions of ersatzer presentism suffer from a heretofore unappreciated shortcoming: they cannot account for the truth of certain counterfactual claims about the past. We argue for this claim by considering two (...) views representative of ersatzer presentism—those of Thomas Crisp and Craig Bourne. After presenting our arguments against their views, we defend two crucial assumptions in those arguments. Finally, we offer a novel version of ersatzer presentism that appropriates the metaphysics of constitution in order to avoid the difficulty that current ersatzer presentist views face. (shrink)

There are two no-change objections that can be raised against the B-theory of time. One stems from the observation that in a B-theoretic scenario changes of determinations can only be represented by propositions which have eternal truth values. The other derives from the principle that nothing can vary over a period of time if it doesn’t instantiate a state of change at all the instants of time which compose it. Here I argue that both objections apply to all comparative conceptions (...) of change, regardless of whether they take tense seriously or not. It follows that, contrary to what is widely believed, A-theoretic accounts of time are not immune to no-change objections, just in virtue of being realist about tense. A-theorists must either accept the conclusion that time, according to their account, does not flow, or put forward an account of flow that is not comparative. A number of difficulties with both of these options are discussed. (shrink)

Philosophers of time say that if presentism is true (i.e. if reality is comprised solely of presently existing things), then a complete description of reality must contain tensed terms, such as ‘was’, ‘presently is’ and ‘will be’. I counter this viewpoint by explaining how the presentist may de-tense our talk about times. I argue, furthermore, that, since the A-theory of time denies the success of any such de-tensing strategy, presentism is not a version of the A-theory – contrary to the (...) popular opinion. (shrink)

Dynamic events such as a rolling ball moving from one place to another involve change and time intervals and thus presumably successions of static events occurring one after the other, e.g., the ball’s being at a certain place and then at another place during the interval in question. When dynamic events are experienced they should count as present and thus as existent from a presentist point of view. But this seems to imply the existence of the static events involved in (...) them. This in turn seems to imply that there exist past and perhaps even future static events. Therefore, there is a problem for presentism. A possible way out for the presentist is proposed, based on allowing for time-indexed past-oriented and future-oriented properties. One may raise objections regarding the ontological status of these properties and the commitment to past and future objects and times that they seem to bring with them, but these objections can be put to rest. (shrink)

Typical presentism asserts that whatever exists is present. Moderate presentism more modestly claims that all events are present and thus acknowledges past and future times understood in a substantivalist sense, and past objects understood, following Williamson, as “ex-concrete.” It is argued that moderate presentism retains the most valuable features of typical presentism, while having considerable advantages in dealing with its most prominent difficulties.

Early commentators on David Lewis's account of counterfactuals noted that certain examples suggest that some counterfactuals with true antecedents and true consequents are false. Lewis's account has the consequence that all such counterfactuals are true, leaving us to choose between explaining away our intuitions about the examples in question or offering an alternative to Lewis's account. Here I argue that a simple modification of the familiar Lewisian truth conditions yields the intuitively correct verdicts about these examples, and so we can (...) take our intuitions about these examples at face value without any major departure from Lewis's approach to counterfactuals. (shrink)