It seems intuitively obvious that what I am doing right now is more real than what I did just one second ago, and it seems intuitively obvious that what I did just one second ago is more real than what I did forty years ago. And yet, remarkably, every philosopher of time today, except for the author, denies this obvious fact about reality. What went wrong? How could philosophers get so far away from what is the most experientially evident fact (...) about reality? (shrink)

The question I want to explore is whether experience supports an antireductionist ontology of time, that is, whether we should take it to support an ontology that includes a primitive, monadic property of nowness responsible for the special feel of events in the present, and a relation of passage that events instantiate in virtue of literally passing from the future, to the present, and then into the past.

On-line English translation of this summary of Epicurus' ethics.

The new tenseless theory of time, Developed primarily by j j c smart and d h mellor, States that tensed sentence-Utterances cannot be translated by tenseless ones but nevertheless have tenseless truth conditions. Smart and mellor infer from this that the tenseless theory of time is true. The author argues, However, That the rules of use of tensed sentence-Utterances entail that these utterances also have tensed truth conditions. This implies that the tensed theory of time is true.

In "How Do We Know It Is Now Now?" David Braddon-Mitchell (Analysis 2004) develops an objection to the thesis that the past is real but the future is not. He notes my response to this, namely that the past, although real, is lifeless and (a fortiori?) lacking in sentience. He argues, however, that this response, which I call 'the past is dead hypothesis', is not tenable if combined with 'special relativity'. My purpose in this reply is to argue that, on (...) the contrary, 'special relativity' supports the thesis that the future is unreal. (shrink)

The only obligatory temporal expression in English is tense, yet Hans Reichenbach (1947) has argued convincingly that the simplest sentence is understood in terms of three temporal notions. Additional possibilities for a simple sentence are limited: English sentences have one time adverbial each. It is not immediately clear how to resolve these matters, that is, how (if at all) Reichenbach's account can be reconciled with the facts of English. This paper attempts to show that they can be reconciled, and presents (...) an analysis of temporal specification that is based directly on Reichenbach's account.Part I is devoted to a study of the way the three times—speech time, reference time, event time—are realized and interpreted. The relevant syntactic structures and their interaction and interpretation are examined in detail. Part II discusses how a grammar should deal with time specification, and proposes a set of interpretive rules. The study offers an analysis of simple sentences, sentences with complements, and habitual sentences. It is shown that tense and adverbials function differently, depending on the structure in which they appear. The temporal system is relational: the orientation and values of temporal expressions are not fixed, but their relational values are consistent. This consistency allows the statement of principles of interpretation. (shrink)

The paper begins by considering David Armstrong's beautiful paper 'The Headless Woman Illusion and the Defence of Materialism', which conjectures how we get the illusion that there are non-physical qualia. There are discussions of other metaphysical illusions, that there is a passage of time, that we have libertarian free will, and that consciousness is ineffable (which last also relates to Armstrong), and of their possible explanations. Moral: avoid appeal to so called intuition or phenomenology.

A theory of temporal passage is put forward which is "objective" in the sense that time flow characterizes the universe independently of the existence of conscious beings. The theory differs from Grunbaum's "mind-dependence" theory, and is designed to avoid Grunbaum's criticisms of an earlier theory of Reichenbach's. The representation of temporal becoming is accomplished by the introduction of indeterministic universe-models; each model representing the universe at a time. The models depict the past as a single four-dimensional manifold, and the future (...) as a branched structure of such manifolds. Time flow is relativistic in that it manifests itself in a frame-dependent (but not observer-dependent) way. The indeterministic character of the universe-models is mirrored in a "temporal" theory of truth which rejects the principle of bivalence, and suitable semantics are provided for this theory. Finally, an account of physical law is given which defines it in terms of physical possibility, rather than vice versa. (shrink)

I first distinguish several notions that have traditionally been conflated (or otherwise neglected) in discussions of the metaphysics of time. Thus, for example, I distinguish between the passage of time and temporal becoming. The former is, I maintain, a confused notion that does not represent a feature of the world; whereas a proper understanding of the latter provides the key for a plausible and comprehensive account of the nature of temporal reality. There are two general classes of views of the (...) nature of temporal reality; proponents of particular views in both classes attempt to account for the phenomenon of temporal becoming in terms of qualitative change. I argue that any such account – in terms of change – is irredeemably problematic. And so I propound a different account of temporal becoming, based on the notion that temporal reality is transient, which provides the means to characterize intuitively and vividly the significant effects of time on the metaphysical nature of the world. (shrink)

Perry argues that certain sorts of indexicals are 'essential', in the sense that they cannot be eliminated in favor of descriptions. This paper also introduces the influential idea that certain sorts of indexicals play a special role in thought, and have a special connection to action.

This is an expanded and revised discussion of the argument briefly put forward in my 'A New Problem for the A-Theory of Time', where it is claimed that it is impossible to experience real temporal passage and that no such phenomenon exists. In the first half of the paper the premises of the argument are discussed in more detail than before. In the second half responses are given to several possible objections, none of which were addressed in the earlier paper. (...) There is also some discussion of some related epistemic arguments against the passage of time given by Huw Price and David Braddon-Mitchell along with objections raised against them recently by Tim Maudlin and Peter Forrest respectively. (shrink)

On the B-theory of time, the experiences we have throughout our conscious lives have the same ontological status: they all tenselessly occur at their respective dates. But we do not seem to experience all of them on the same footing. In fact, we tend to believe that only our present experiences are real, to the exclusion of the past and future ones. The B-theorist has to maintain that this belief is an illusion and explain the origin of the illusion. The (...) paper argues that this cannot be properly done unless one rejects endurantism in favor of the stage view of persistence. (shrink)

The aim of philosophy, abstractly formulated, is to understand how things in the broadest possible sense of the term hang together in the broadest possible sense of the term. Under 'things in the broadest possible sense' I include such radically different items as not only 'cabbages and kings', but numbers and duties, possibilities and finger snaps, aesthetic experience and death. To achieve success in philosophy would be, to use a contemporary turn of phrase, to 'know one's way around' with respect (...) to all these things, not in that unreflective way in which the centipede of the story knew its way around before it faced the question, 'how do I walk?', but in that reflective way which means that no intellectual holds are barred. (shrink)

This article discusses Robin Le Poidevin's proposal that a commitment to the B‐theory of time provides atheists with a reason to relinquish the fear of death. For the purposes of the article, I grant Le Poidevin's assertion that the B‐theory gives us a sense in which our lives are ‘eternally real’; but I deny that the B‐theorist is entitled to regard this as sufficient to furnish a reason to cease fearing death. This is because, according to the most prevalent B‐theoretic (...) conception of our emotional attitudes, A‐theoretic (and not B‐theoretic) beliefs are sufficient to ground these attitudes. I discuss this B‐theoretic account of our emotions, which I call the Mellor–MacBeath model, and explain how it relates to the fear of death. I argue that, according to this model, the fear of death – in so far as it is a fear of one's personal annihilation – is warranted, and hence that, if Le Poidevin's proposal is to stand, then we must be given either a new B‐theoretic account of the connection between beliefs and emotions, or an account of why the fear of death is unlike other emotional attitudes. (shrink)

There are two extant versions of the new tenseless theory of time: the date versionand the token-reflexive version. I ask whether they are equivalent, and if not, whichof them is to be preferred. I argue that they are not equivalent, that the date version isunsatisfactory, and that the token-reflexive version is correct. I defend the token-reflexive version against a string of objections from Quentin Smith. My defence involves a discussion of the ontological and semantic significance of truth conditions, and of (...) the connection between truth and reality on the one hand, and that between truth and meaning on the other. I argue that Smith's objections to the token-reflexive theory stem from his confusing these two aspects of the notion of truth. (shrink)

This is the text of The Lindley Lecture for 1962, given by Arthur N. Prior (1914-1969).

In this paper I shall focus on Castaneda's notion of quasi-indicators and I shall defend the following theses: (i) Essential indexicals (‘I’, ‘here’ and ‘now’) are intrinsically perspectival mechanisms of reference and, as such, they are not reducible to any other mechanism reference...

This paper presents an argument that the way we experience time is more consistent with our being instantaneous objects than with our being temporally extended throughout our entire lifetimes. By argument to the best explanation therefore, experiencing subjects persons are stages, rather than worms.

I argue that our experience of time supports the B-Theory of time and not the A-Theory of time. We do not experience pastness, presentness, and futurity as mind-independent properties of events. My method in supporting this experiential claim is to show that our experience of presentness is like our experience of hereness--in neither case are we aware of a mind-independent property over and above the events or objects to which we ascribe the presentness or hereness.

: Consider mental states of the type that relate a subject to a content expressed by a sentence. I propose that some of these states necessarily include as constituents of their contents the states themselves. These reflexive states arise when one locates a content as belonging, for example, to one's own present or past. That content is then a tense% thought, ordering one's present state with respect to the content. Anaphoric cross‐reference between an event or state and a constituent of (...) its own content is responsible, I argue, for the phenomenon of sequence of tense in English. Conversely, the fact that some states are necessarily reflexive supports the view that the elaborations of logical form that account for sequence of tense are no mere artefact of semantics, but even intrinsic to some of our utterances and thoughts. (shrink)

New B-Theorists of language, while conceding the untranslatability of tensed sentences by tenseless sentences, deny that the ineliminability of tense implies the reality of tensed facts. Thus, New BTheorist Nathan Oaklander explains, For a variety of reasons, ... recent defenders of the tenseless view have come to embrace the thesis that tensed sentences cannot be translated by tenseless ones without loss of meaning. Nevertheless, recent detensers have denied that the ineliminability of tensed language and thought entails the reality of temporal (...) properties. ... Tensed discourse is indeed necessary for timely action, but tensed facts are not, since the truth conditions of tensed sentences can be expressed in a tenseless meta-language that describes unchanging temporal relations between and among events. (shrink)

The apparent 'flow' of time is one of its most mysterious features, and one which discomforts both scientists and philosophers. One of the most striking assaults upon it is McTaggart's argument that the idea of temporal flow is demonstratively incoherent. In this paper I first urge that the idea of temporal flow is an important part of our intuitive understanding of time, underpinning several of our notions about rationality and time. Second, I try to undercut McTaggart's argument by showing that (...) it is not temporal flow which is illusory but rather the vicious regress McTaggart saw in that idea. A steadfast clinging to the notion of now, along with an analysis of McTaggart's argument reveals that the regress halts after but two steps. (shrink)

Tenseless theories of time entail that earlierthan, later than and simultaneous with (i.e.,McTaggart's `B-series') are the only temporalproperties exemplified by events. Such theories oftencome under attack for being unable to satisfactorilyaccount for tensed language. In this essay I arguethat tenseless theories of time are capable of twofeats that critics, such as Quentin Smith, argue arebeyond their grasp: (1) They can coherently explainthe impossibility of translating all tensed sentencesby tenseless counterparts; (2) They can account forcertain obviously valid entailment relations betweentensed sentence (...) types. In analyzing tensed entailmentrelations tenselessly, I favor a date analysis oftensed language over a token-reflexive theory. Theupshot is that tenseless theories of time are notundermined by the linguistic facts. (shrink)