The important switch from the so-called old B-theory to the new tenseless theory of time (NTT), which had significant implications for the field of tense and indexicals, occurred after Carnap’s era. Against this new background, Carnap’s original inter-translatability thesis can no longer be upheld. The most natural way out would be to modify Carnap’s position according to the NTT; but this is not compatible with Carnap’s metaphysical neutrality thesis. Even worse, Carnap’s work on measurement theory (...) can be used to develop an argument in favour of the A-theory. I argue that there are tensed basic sentences which are needed in order to construct a tenseless system and thus cannot be translated without loss of meaning into tenseless ones (old B-theory) or made true by tenseless facts (NTT). (shrink)

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. (shrink)

In the debate between those who hold the tensed theory and those who hold the tenseless theory of time, Arthur Prior’s famous “Thank Goodness Argument” has had a special place. Initially designed to help tensers, it has seen its fortune change many times. In this paper the focus is on a methodological aspect of the argument. The purpose is to defend the “new reading” of the argument, which is intended to resolve an ontological issue by focusing on (...) an epistemic fact, against a recent charge by Nathan Oaklander that such an argument can be valid only if it is trivial, i.e., if “ceases to exist” contained in one of the premises had been already understood in the tensed sense. However, whether the argument is trivial or not depends also on whether the tensed reading is directly invoked or obtained only through the substitution of an extensional equivalent whose truth is not based on the presupposed truth of the tensed account. A possible extensional equivalent needed for the intended substitution is offered. It is based on the concept of in-the-world-inherent-modalities. (shrink)

Contrary to our immediate and vivid sensation of past, present, and future as continually shifting non-relational modalities, time remains as tenseless and relational as space in all of the established theories of fundamental physics. Here an empirically adequate generalized theory of the inertial structure is discussed in which proper time is causally compelled to be tensed within both spacetime and dynamics. This is accomplished by introducing the inverse of the Planck time at the conjunction of special relativity and (...) Hamiltonian mechanics, which necessitates energies and momenta to be invariantly bounded from above, and lengths and durations similarly bounded from below, by their respective Planck scale values. The resulting theory abhors any form of preferred structure, and yet captures the transience of now along timelike worldlines by causally necessitating a genuinely becoming universe. This is quite unlike the scenario in Minkowski spacetime, which is prone to a block universe interpretation. The minute deviations from the special relativistic effects such as dispersion relations and Doppler shifts predicted by the generalized theory remain quadratically suppressed by the Planck energy, but may nevertheless be testable in the near future, for example via observations of oscillating flavor ratios of ultrahigh energy cosmic neutrinos, or of altering pulse rates of extreme energy binary pulsars. (shrink)

The co-reporting theory holds that for every A-sentence-token there is a B-sentence that differs in sense but reports the same event orstate of affairs. Thus, if it is now t7, what is reported by now tokening “It is t7 now” is identical with what is reported by tokening “It is t7 at t7.” Quentin Smith has argued that the fact that the sentence-tokens differ in sense but are co-reporting is compatible with the A-theory supposition that their difference in (...) sense consists in the fact that the A-sentence-token alone conveys the information that t7 has an irreducible A-property of presentness. I counter argue that every time the indexical “now” is tokened it expresses, not an irreducible A-property, but a unique individual essence of a moment of time which can be apprehended only at that time. (shrink)

It is a common claim that one concept of time, tenseless theory, is in greater conflict with how the world seems to us than the competing theories of tense theory and presentism. This paper offers at least one counter-example to that claim. Here, it is argued that tenseless theory fares better than its competitors in capturing the phenomenology in particular cases of perception. These cases are where the visual phenomenology is of events occurring together (...) which must be occurring at different times. The commitments of matching such phenomenology in one’s ontology undermine tense theory and presentism and support tenseless theory. (shrink)

The two books make a notable contribution in drawing together many of the philosophical problems about time, and the associated literature. The expositions are also valuable for their interdisciplinary strengths, especially in the history and philosophy of science and (to a lesser extent) in theology, and for the clarity and thoroughness of Craig's approach. However, the two books do not present, as might at first appear, a side by side exposition of the respective strengths and weaknesses of the A-series and (...) the B-series views of time. They are, rather, one interconnected defence of the A-series view. Some of the strengths and weaknesses of Craig's exposition and defence of the A-series view are noted. (shrink)

William Lane Craig is Research Professor of Philosophy at Talbot School of Theology. Quentin Smith considers him “one of the leading philosophers of time,” and his impressive, exhaustive three volume series on God, time, relativity, and eternity clearly demonstrates this. As the first two volumes are devoted to the problem of time—examining whether a dynamic/tensed or static/tenseless view of time is correct—I review them back-to-back.

In this book and the companion volume The Tenseless Theory of Time: A Critical Examination, Craig undertakes the first thorough appraisal of the arguments for and against the tensed and tenseless theories of time.

In this dissertation I provide a tenseless account of tensed sentences and tensed belief. I begin by distinguishing tensed theories of time from tenseless theories of time. Tensed theories of time hold that there is a time that is objectively present, and that the moment that is objectively present changes from one moment to the next. I reject tensed theories of time. I deny that there is a time that is objectively present that changes from one moment to (...) the next. Instead, time is in many ways analogous to space and 'now' is in many ways analogous to 'here'. Just as there is no one location that is objectively here, there is no one moment that is objectively now. Nothing metaphysically distinguishes the present moment from past and future moments. ^ There are two major challenges facing the tenseless theory of time. The first challenge is: can a tenseless theory of time provide a plausible account of the truth-conditions for tensed sentences? Tensed sentences such as 'The meeting is now!' provide a prima facie reason in favor of irreducibly tensed properties: the sentence is true if and only if the meeting has the tensed property of being now. I examine existing attempts by tenseless theorists for providing tenseless truth-conditions for tensed sentences. I argue that they are unable to provide a complete account of what makes tensed sentences true. I formulate and defend a new tenseless account of the truth-conditions for tensed sentences, the type-context theory, which makes use of David Kaplan's theory of indexicals. ^ The second challenge facing the tenseless theory of time is: can a tenseless theory of time provide a plausible account of our tensed psychological attitudes? Most of our psychological attitudes such as belief, desire, relief, regret and anticipation are irreducibly tensed: we cannot adequate describe such attitudes without appealing to tensed language. I do not take relief in the tenseless fact that I got my wisdom teeth out in 1998. I take relief in the tensed fact that my wisdom teeth were extracted in the past. I do not run to the bus stop merely because I believe that the bus arrives at 8:45. I run to the bus stop because I believe that the bus is arriving now. How can the tenseless theory of time explain the central role that tense plays in our psychological attitudes? I claim that the objects of tensed beliefs are properties. The account I defend is a version of the self-ascription accounts defended by Roderick Chisholm and David Lewis. I argue that such a view can provide a plausible tenseless account of tensed belief. ^. (shrink)

If, as the new B-theory of time maintains, tensed sentences have tenseless truth conditions, it follows that it is possible for two sentence-tokens to have the sametruth conditions but different meanings. This conclusion forces a rethink of the traditional identification of truth conditions with meaning. There is an aspect of the meanings of tensed sentences that is not captured by their truth conditions, and that has so far eluded explanation. In this paper I intend to locate, examine, and (...) explain this feature of tensed meaning. (shrink)

Tenseless theories of time entail that the only temporal properties exemplified by events are earlier than, simultaneous with, and later than. Such an account seems to conflict with our common experience of time, which suggests that the present moment is ontologically unique and that time flows. Some have argued that only a tensed account of time, one in which past, present and future are objective properties, can do justice to our experience. Any theory that claims that the world (...) is different from how we experience it must nonetheless be consistent with the having of that experience. Accordingly, in this essay I defend the tenseless theory by arguing that it can indeed account for certain key features of our experience of time without recourse to tensed properties. (shrink)

There is a common approach to metaphysical disputes, which takes language as its starting point, and leads to a view about the range of acceptable metaphysical positions in any such dispute. I argue that this approach rests on accepting what I call the Strong Linguistic Thesis (SLT). In the metaphysical debate about time I argue that the new B-theory has rejected SLT, and for good reasons. The metaphysical debate about modality parallels the early metaphysical debate about time. I argue (...) that a position analogous to the new B-theory of time is available in the modal debate, and has some advantages over its rivals. (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)

The main goal of Michael Tooley’s groundbreaking book is to establish a position intermediate between the tenseless theory of time and the standard tensed theory of time. Tooley argues for a novel version of the tensed theory of time, namely, that the future is unreal and the present and past real, and yet that reality consists only of tenseless facts. The question that naturally arises for the reader concerns an apparent paradox: how could the tensed (...) theory of time be true if reality consists only of tenseless facts? (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)

In a recent article entitled “Tensed Sentences and Free Repeatability” (The Philosophical Review,” 1973), Stephen E. Braude puts forward the following argument: (a) Nonsimultaneous replicas of tensed sentences have the same sense; (b) therefore, tensed sentences are not translatable into tenseless sentences. I point out that the plausibility of (a) depends on which theory of meaning is true. If the rules of use theory of meaning is true, then (a) is true, but if either the content or (...) reference theory of meaning is true, (a) is questionable. I also point out that some philosophers, such as Nelson Goodman and W. V. O. Quine, who deny (b) in order to make philosophical claims about the status of temporal becoming and perspicuous languages, do not state whether the equivalence of tensed and tenseless sentences is an equivalence of rules of use, content, or reference. Braude has shown that a rules of use version of (b) is true, but not that a content or reference version of (b) is true. (shrink)

Michael Tooley presents a major new philosophical theory of the nature of time, offering a powerful alternative to the traditional "tensed" and recent "tenseless" accounts of time. He argues for a dynamic conception of the universe, in which past, present, and future are not merely subjective features of experience. He claims that the past and the present are real, while the future is not. Tooley's approach accounts for time in terms of causation. He therefore claims that the key (...) to understanding the dynamic nature of the universe is to understand the nature of causation. Time, Tense, and Causation is a landmark treatment of one of the oldest and most perplexing intellectual problems, and will be fascinating reading for anyone interested in the character of time. (shrink)

It is argued that the assignment of truth values to future contingents is threatened not by a tensed metaphysics but by a temporally “local” notion of truth, i.e., by the assumption that whatever is true at a given time needs to be grounded in what exists at that time. If this assumption is accepted, tensed and tenseless metaphysics are equally vulnerable; if it is rejected, both can accommodate true future contingents. This means that semantic decisions are largely independent of (...) metaphysical considerations. The work of Correia and Rosenkranz (2018) is a clear example of how the tensed metaphysics of the growing block can incorporate true future contingents. Two potential worries are discussed in the context of their work: (a) that their grounding strategy overgeneralizes and admits true counterfactual contingents; and (b) that the growing block theory lacks sufficient resources to distinguish the unique possible future course of events that is relevant for the grounding of future contingents. (shrink)

The B-theory of time holds that McTaggart’s A-series of past, present, and future is reducible to the B-series of events running from earlier to later. According to the date-theory—originally put forth by J.J.C. Smart and later endorsed by by D.H. Mellor—the truth conditions of tensed or Asentence-tokens can be given in terms of tenseless or B-sentences and, therefore, A-sentence-tokens do not ascribe any A-determinations of pastness, presentness, or futurity. However, as Nathan Oaklander has argued, the date-theory (...) does not provide an adequate analysis of the ontological truth conditions of irreducible A-propositions. I show that the co-reporting theory—which holds that for every A-sentence-token there is a B-sentence that differs in sense but reports the same event or state of affairs—escapes the objections Oaklander has addressed against the date-theory. (shrink)

: I offer a new approach to the increasingly convoluted debate between the A- and B-theories of time, the ‘tensed’ and ‘tenseless’ theories. It is often assumed that the B-theory faces more difficulties than the A-theory in explaining the apparently tensed features of temporal experience. I argue that the A-theory cannot explain these features at all, because on any physicalist or supervenience theory of the mind, in which the nature of experience is fixed by the (...) physical state of the world, the tensed properties of time posited by the A-theory could play no role in shaping temporal experience. It follows that the A-theory is false; even a priori arguments for it fail, because they still require the tensed vocabulary which is used to describe temporal experience. (shrink)

It was once held to be a virtue of the growing block theory that it combines temporal dynamism with a straightforward account of in virtue of what past-tensed propositions are true, and an explanation for why some future-tensed propositions are not true (assuming they are not). This put the growing block theory ahead of its principal dynamist rival: presentism. Recently, new growing block theorists have suggested that what makes true, past-tensed propositions, is not the same kind of thing (...) as what makes true, present-tensed propositions. They have done so in an attempt to defuse a particular epistemic objection to their view. In this paper it is argued that the new growing block theorist faces a dilemma. The more unified a strategy is for responding to the epistemic objection, the more that strategy results in the new growing block model positing truthmakers that are similar to those posited by the presentist, which erodes the purported advantage of the growing block theory over presentism. On the other hand, versions of the new growing block theory that embrace disunified strategies are better able to differentiate themselves from presentism, but are unattractive because of their disunity. (shrink)

The paper argues that metaphysics depends upon science when it comes to claims about the constitution of the real world. That thesis is illustrated by considering the examples of global supervenience, the tenseless vs. the tensed theory of time and existence, events vs. substances, and relations vs. intrinsic properties. An argument is sketched out for a metaphysics of a four-dimensional block universe whose content are events and their sequences, events consisting in physical properties instantiated at space-time points, these (...) properties being relations rather than intrinsic properties. (shrink)

Human beings seem to capture time and the temporal properties of events and things in thought by having beliefs usually expressed with statements using tense, or notions such as ‘now’, ‘past’ or ‘future’. Tensed beliefs like these seem indispensable for correct reasoning and timely action. For instance, my belief that my root canal is over seems inexpressible with a statement that does not use tense or a temporal indexical. However, the dominant view on the nature of time is (...) that it forms, with space, a four-dimensional continuum where time does not encompass private perspectives or an absolute, fixed present. This ‘tenseless’ theory of time encounters a challenge in integrating tensed belief, because it cannot easily explain what constitutes a tensed belief in a tenseless world and how such a belief works inside our cognitive network to bring about the actions it does. Providing such an account is the main goal of this dissertation. -/- I argue here that the correct way to proceed would be to utilize philosophical theories dealing with indexicality, as the puzzling features of tensed belief are shared with beliefs expressed by first-person or spatial indexicals. In chapters II and III I expand the dominant theories about indexicality (Lewis, Perry, Kaplan) and apply them to tensed belief. I show that each is in certain respects incomplete or inadequate. -/- My preferred account critiques the preceding theories as mis-attributing the indexicality involved to a fully conceptual element in the way people think about time. I argue that we should instead connect tensed belief to not fully conceptual elements thought. For support I turn to work in perceptual psychology that connects beliefs about space to perceptions of spatial features. In chapter IV I develop an analogous argument about temporal thought and discuss how mental representations involved in perceptions are constitutively related to the formation and preservation of tensed beliefs. Combining this story with a tenseless theory of time should give us a complete, metaphysically uncontroversial, account of the way a tensed belief functions in reasoning and produces timely action. (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)

If, as the new B-theory of time maintains, tensed sentences have tenseless truth conditions, it follows that it is possible for two sentence-tokens to have the sametruth conditions but different meanings. This conclusion forces a rethink of the traditional identification of truth conditions with meaning. There is an aspect of the meanings of tensed sentences that is not captured by their truth conditions, and that has so far eluded explanation. In this paper I intend to locate, examine, and (...) explain this feature of tensed meaning. (shrink)

Quentin Smith has argued that the new tenseless theory of time is faced with insurmountable problems and should be abandoned in favour of the tensed theory of time. Smith;s main argument attacks the fundamental premise of the tenseless theory: that tenseless truth conditions for tokens of tensed sentences adequately capture the meaning of tensed sentences. His position is that tenseless truth conditions cannot explain the logical relations between tensed sentences, thus the tensed (...) class='Hi'>theory must be accepted. Against Smith, this paper adopts an alternative approach to the explanation of the entailment relations between sentences which contain indexicals. The approach drops the reliance upon tokens and instead relies on the evaluation of sentence types with respect to a context rather than upon actual or possible utterances of tokens of the types. This (new) version of the tenseless theory of time can adequately explain the relevant entailment relations between tensed sentences. (shrink)

I defend the A Theory of Time that there are tensed (and other indexical) facts, e.g., about what has happened, as well as tenseless facts, e.g., about what happened in the nineteenth century. I reject arguments of McTaggart and Grunbaum, but concentrate on Mellor’s argument that tenseless truth-conditions can be given for the truth of every tensed sentence. My rebuttal of this argument depends on a distinction between the ’proposition’ and the ’statement’ expressed by a sentence. Statements (...) have changeless truth-value, while propositions may change truth-value; but there is more to be known than knowledge of true statements can capture. (shrink)

Advocates of the A-Theory of time argue that pastness, presentness and futurity are mind-independent properties of events on the grounds that tensed and tenseless sentences are not semantically equivalent. However, their arguments for semantic nonequivalence do not entail state of affairs nonequivalence, and this latter nonequivalence must also obtain in order for the A-Theory to be true. The situation is like arguing that hereness and thisness are extra, mind-independent properties of places and objects on the grounds that (...) sentences in which "here" and "this" are used do not mean the same as their referential counterparts. Since we are not tempted to say that hereness is an extra property of places because of this semantic nonequivalence, we should not be tempted to say that presentness is an extra property of events because of the semantic nonequivalence of tensed and tenseless sentences. (shrink)

I consider whether the self-ascription theory can succeed in providing a tenseless (B-theoretic) account of tensed belief and timely action. I evaluate an argument given by William Lane Craig for the conclusion that the self-ascription account of tensed belief entails a tensed theory (A-theory) of time. I claim that how one formulates the selfascription account of tensed belief depends upon whether one takes the subject of selfascription to be a momentary person-stage or an enduring person. I (...) provide two different formulations of the self-ascription account of tensed belief, one that is compatible with a perdurantist account of persons and the other that is compatible with an endurantist account of persons. I argue that a self-ascription account of tensed beliefs for enduring subjects most plausibly involves the self-ascription of relations rather than properties. I argue that whether one takes the subject of self-ascription to be a momentary personstage or an enduring person, the self-ascription theory provides a plausible B-theoretic account of how tensed belief and timely action are possible. (shrink)

In this paper, we argue against eternalism on the basis of certain phenomenological considerations regarding our experiential life in a relatively novel way. Contrary to well-known phenomenological arguments that attempt to refute tenseless theories of time, our argument that we call the Transcendental Phenomenological Argument against Eternalism is against both tenseless and tensed versions of eternalism. The argument is based on the fact that one experiences a phenomenologicalsuccessionof experiences, and it shows that perdurantist forms of eternalism have to (...) either deny this fact or should embracead hocand metaphysically implausible assumptions about the nature of the mind. As we argue, neither of these options seems to be too promising. (shrink)

[D. H. Mellor] Kant's claim that our knowledge of time is transcendental in his sense, while false of time itself, is true of tenses, i.e. of the locations of events and other temporal entities in McTaggart's A series. This fact can easily, and I think only, be explained by taking time itself to be real but tenseless. /// [J. R. Lucas] Mellor's argument from Kant fails. The difficulties in his first Antinomy are due to topological confusions, not the tensed (...) nature of time. Nor are McTaggart' s difficulties due to the tensed nature of time. The ego-centricity of tensed discourse is an essential feature of communication between selves, each of whom refers himself as 'I', and is required for talking about time as well as experience and agency. Arguments based on the Special Theory are misconceived. Some rest on a confused notion of 'topological simultaneity'. In the General Theory a cosmic time is defined, as also in quantum mechanics, where a natural present is defined by a unique hyperplane of collapse into eigen-ness. (shrink)

Natural languages exhibit a great variety of grammatical paradigms. For instance, in English verbs are grammatically marked for tense, whereas in the tenseless Eskimo-Aleut language Kalaallisut they are marked for illocutionary mood. Although time is a universal dimension of the human experience and speaking is part of that experience, some languages encode reference to time without any grammatical tense morphology, or reference to speech acts without any illocutionary mood morphology. Nevertheless, different grammatical systems are semantically parallel in (...) certain respects. Specifically, I propose that English tenses form a temporal centering system, which monitors and updates topic times, whereas Kalaallisut moods form a modal centering system, which monitors and updates modal discourse referents. To formalize these centering parallels I define a dynamic logic that represents not only changing information but also changing focus of attention in discourse (Update with Centering, formalizing Grosz et al 1995). Different languages can be translated into this typed logic by directly compositional universal rules of Combinatory Categorial Grammar (CCG) The resulting centering theory of tense and illocutionary mood draws semantic parallels across different grammatical systems. The centering generalizations span the extremes of the typological spectrum, so they are likely to be universal. In addition, the theory accounts for the translation equivalence of tense and illocutionary mood in a given utterance context. Following Stalnaker (1978) I assume that the very act of speaking up has a ‘commonplace effect’ on the context. It focuses attention on the speech act and thereby introduces default modal and temporal topics. These universal defaults complement language-specific grammars, e.g. English tenses and Kalaallisut moods. In a given utterance context the universal discourse-initial defaults plus language-specific grammatical marking may add up to the same truth conditions.. (shrink)

We view things from a certain position in time: in our language, thought, feelings and actions, we draw distinctions between what has happened, is happening, and will happen. Frequently, approaches to this feature of our lives - those seen in disputes between tensed and tenseless theories, between realist and anti-realist treatments of past and future, and in accounts of historical knowledge - embody serious misunderstandings of the character of the issues; they misconstrue the relation between metaphysics and ethics, and (...) the way to characterize the kind of sense which tensed language has. David Cockburn argues that the notion of 'reasons for emotion' must have a central place in any account of meaning, and that the present should have no priority in our understanding of tense. This allows for a more satisfactory articulation of the place of past, present and future in our thought, and of the form which criticism of our thought might take. (shrink)

Different beliefs concerning the metaphysical status of tense divide philosophers into two camps. Those who embrace a tensed theory of time argue that past, present and future correspond to genuine ontological distinctions. Those who deny the reality of such distinctions espouse a tenseless theory of time . In this essay I defend a tenseless account. ;I begin with an examination of the most prominent ontological conceptions of tense, finding them to be incoherent at worst, (...) highly implausible at best. I then turn my attention to Einstein's Special Theory of Relativity, arguing that, properly understood, it demonstrates that tenses could not be physically realized. The upshot is that tense is not a philosophically viable notion. If time is real, it must be tenseless. ;Therefore, the choice is between tenseless time and some sort of temporal idealism. Defending the former alternative, I focus my efforts, in the second part of the essay, on responding to the most important objections to a tense-free ontology. I argue that tenseless time: can explain the semantics of tensed sentences; does not entail fatalism or determinism of any kind; and is consistent with our mental experience. These results indicate that tense is a feature of perception, not a property of time itself. ;In the third part of the essay I argue that theories that constrain truth epistemically are poorly motivated and implausible. Therefore, in considering the status of tense, ontological considerations can rightly take precedence over epistemic concerns. This defuses objections to tenseless time that are based on the obvious fact that the past, present and future differ with respect to their epistemic accessibility. It is, therefore, consistent to hold that time is epistemically asymmetric but ontologically symmetric. (shrink)

I attempt to set the stage for a constructive analysis of the nature and function of tensed belief as a distinct psychological type. After introducing tensed beliefs, I describe the philosophical issues that implicate them, including Prior’s “ thank goodness it’s over ” argument against the B-theory of time. I proceed to flesh out, and then argue against, two traditional treatments of tensed belief from the philosophy of time: the A-theoretic view, which starts from present facts or properties, and (...) Hugh Mellor's B-theoretic reply, which starts from the tenseless properties of tensed belief tokens. The explanatory failure of the former shows that, pace Prior, the existence of tensed attitudes does not favor the A-theory, while the failure of both shows that there are still explanatory gaps that we need to fill. I conclude by offering a working definition of tensed belief and the ideal methodology for filling out these explanatory gaps in future study. (shrink)

According to a number of authors it is possible to give tenseless (B-series) truth conditions for tensed sentences by utilizing token indexicals in something like the following fashion. (1a) An utterance u of 'Past S' is true iff at some time earlier than u, S is true (1b) An utterance u of 'Pres S' is true iff at some time overlapping u, S is true This strategy has been challenged on the grounds that it will break down in cases (...) like (2). (2) There was no spoken language A number of strategies have been attempted to circumvent this difficult, including the introduction of possible utterances, etc. In this paper I argue that such moves are unnecessary — that the problem turns on scope interactions with hidden modals in the theorems of the T-theory. (shrink)

The syntactic domain of tense is the clause: tense appears in some form in every clause of a tensed language. Semantic interpretation of tense requires information from context, however. This has been clear at least since Partee's 1984 demonstration of the anaphoric properties of tense. In this talk I will show that the facts about context are quite complex, perhaps more so than has been appreciated. There are three patterns of tense interpretation, depending on the (...) type of discourse context in which a clause appears. I will introduce the notion of discourse mode to account for the different types of context.1 I offer an interpretation of tense in Discourse Representation Theory, a framework which is organized to deal with information from the context. I also show that a syntactically based theory can handle contextually-based tense interpretation. In §1 I set out the basic analysis of tense and show how it applies to sentences in isolation. §2 discusses types of discourse context and patterns of tense interpretation; §3 considers the formal analysis of tense; §4 concludes with a summary and a prediction about temporal interpretation in tenseless languages. (shrink)

In this essay I address the issue of whether Einstein's Special Theory of Relativity counts against a tensed or "A-series" understanding of time. Though this debate is an old one, it continues to be lively with many prominent authors recently arguing that a genuine A-series is compatible with a relativistic world view. My aim in what follows is to outline why Special Relativity is thought to count against a tensed understanding of time and then to address the philosophical attempts (...) to reconcile the two theories. I conclude that while modern physics on its own does not rule out the possibility of a real A-series, the combination of Einstein's theory and the philosophical arguments against tense is decisive. The upshot is that the tenseless or "B-series" view of time is the best one. (shrink)

[D. H. Mellor] Kant's claim that our knowledge of time is transcendental in his sense, while false of time itself, is true of tenses, i.e. of the locations of events and other temporal entities in McTaggart's A series. This fact can easily, and I think only, be explained by taking time itself to be real but tenseless. /// [J. R. Lucas] Mellor's argument from Kant fails. The difficulties in his first Antinomy are due to topological confusions, not the tensed (...) nature of time. Nor are McTaggart' s difficulties due to the tensed nature of time. The ego-centricity of tensed discourse is an essential feature of communication between selves, each of whom refers himself as 'I', and is required for talking about time as well as experience and agency. Arguments based on the Special Theory are misconceived. Some rest on a confused notion of 'topological simultaneity'. In the General Theory a cosmic time is defined, as also in quantum mechanics, where a natural present is defined by a unique hyperplane of collapse into eigen-ness. (shrink)

It is customary in current philosophy of time to distinguish between an A- (or tensed) and a B- (or tenseless) theory of time. It is also customary to distinguish between an old B-theory of time, and a new B-theory of time. We may say that the former holds both semantic atensionalism and ontological atensionalism, whereas the latter gives up semantic atensionalism and retains ontological atensionalism. It is typically assumed that the B-theorists have been induced by advances (...) in the philosophy of language and related A-theorists’ criticisms to acknowledge that semantic atensionalism can hardly stand, but have also maintained that what is essential for the B-theory is ontological atensionalism, which can be independently defended. Here it is argued that the B-theorists have been too quick in abandoning semantic atensionalism: they can still cling to it. (shrink)

[D. H. Mellor] Kant's claim that our knowledge of time is transcendental in his sense, while false of time itself, is true of tenses, i.e. of the locations of events and other temporal entities in McTaggart's A series. This fact can easily, and I think only, be explained by taking time itself to be real but tenseless. /// [J. R. Lucas] Mellor's argument from Kant fails. The difficulties in his first Antinomy are due to topological confusions, not the tensed (...) nature of time. Nor are McTaggart' s difficulties due to the tensed nature of time. The ego-centricity of tensed discourse is an essential feature of communication between selves, each of whom refers himself as 'I', and is required for talking about time as well as experience and agency. Arguments based on the Special Theory are misconceived. Some rest on a confused notion of 'topological simultaneity'. In the General Theory a cosmic time is defined, as also in quantum mechanics, where a natural present is defined by a unique hyperplane of collapse into eigen-ness. (shrink)

This paper defends three theses: (i) that presentism is either trivial or untenable; (ii) that the debate between tensed and tenseless theories of time is not about the status of presentism; and (iii) that there is no temporal analogue of the modal thesis of actualism.

The most important argument against the B-theory of time is the paraphrase argument. The major defense against that argument is the “new” tenseless theory of time, which is built on what I will call the “indexical reply” to the paraphrase argument. The move from the “old” tenseless theory of time to the new is most centrally a change of viewpoint about the nature and determiners of ontological commitment. Ironically, though, the new tenseless theorists have (...) generally not paid enough sustained, direct attention to that notion. I will defend a general criterion of ontological commitment and apply it to generate a version of the new tenseless theory of time. I will argue that many of the extant versions of the new tenseless theory of time (specifically, all those which seek to identify tenseless truth-conditions of tensed sentences as a way out of apparent ontological commitment to tensed features of reality) are unsatisfactory because their general criterion of ontological commitment is inadequate. Those versions of the new tenseless theory which are adequate (specifically, those which identify tenseless truthmakers for tensed sentences) actually entail the criterion of ontological commitment that I defend, despite appearances to the contrary. (shrink)

This paper defends three theses: that presentism is either trivial or untenable; that the debate between tensed and tenseless theories of time is not about the status of presentism; and that there is no temporal analogue of the modal thesis of actualism.

Some philosophers hold that the tenseless theory of time entails the "temporal parts" theory of personal identity, that a person is a succession of distinct particulars. Some philosophers also believe that the tensed theory of time entails the "substance" or "continuant" theory of personal identity, that a person is a single particular that endures through time. I argue that these philosophers are mistaken. Both the tensed and tenseless theories of time are compatible with both (...) theories of personal identity. (shrink)