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- Joshua M. Mozersky (2000). Tense and Temporal Semantics. Synthese 124 (2):257-279.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.
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This paper contributes to the debate about ‘tenseless languages’ by defending a tensed analysis of a superficially tenseless language. The language investigated is St’át’imcets (Lillooet Salish). I argue that although St’át’imcets lacks overt tense morphology, every finite clause in the language possesses a phonologically covert tense morpheme; this tense morpheme restricts the reference time to being non-future. Future interpretations, as well as ‘past future’ would-readings, are obtained by the combination of covert tense with an operator analogous to Abusch’s (1985) WOLL. I offer St’át’imcets-internal evidence (of a kind not previously adduced) that the WOLL-like operator is modal in nature. It follows from the analysis presented here that there are only two (probably related) differences between St’át’imcets and English in the area of tense. The first is that St’át’imcets lacks tense morphemes which are pronounced. The second is that the St’át’imcets tense morpheme is semantically underspecified compared to English ones. In each of these respects, the St’át’imcets tense morpheme displays similar properties to pronouns, which may be covert and which may fail to distinguish person, number or gender. Along the way, I point out several striking and subtle similarities in the interpretive possibilities of St’át’imcets and English. I suggest that these similarities may reveal non-accidental properties of tense systems in natural language. I conclude with discussion of the implications of the analysis for cross-linguistic variation, learnability and the possible existence of tenseless languages.
In this paper I argue that the debate between the so-called “presentists” – according to whom only the present is real – and the “eternalists”, according to whom past present and future are equally real, has no ontological significance. In particular, once we carefully distinguish between a tensed and a tenseless sense of existence, it is difficult to find a single ontological claim on which the two parties could disagree. Since the choice of using a tense or a tenseless language is dictated by purely pragmatic reasons, we should abstain from bringing to bear pseudo-debates generated by the “tensed” or the “tenseless theories” of time on the question of understanding the philosophical implications of contemporary spacetime theories, or notions like becoming, change and persistence in time.
The debate about the reality of tense descends from an argument of McTaggart's,whichwas designed to prove the unreality of time.The argument has two constituent theses: firstly that time is intrinsically tensed, and secondly, that the notion of tense is inherently self-contradictory. If both of these theses are true, it follows that time does not exist. The debate that has emerged from this argument centres around the truth or falsity of each of these theses. A-theorists accept the first and reject the second thesis, drawing the conclusion that, since there is no contradiction in the notion of tense, time exists and is intrinsically tensed. B-theorists accept the second and reject the first thesis, concluding that the notion of tense is inherently self-contradictory, but since time is not intrinsically tensed, time exists and is tenseless. I think the argument against tense is sound, but time is not intrinsically tensed, so time exists and is tenseless. However, this argument, which has come to be known as McTaggart's paradox, is obscure, which has tended to blunt its force. In this paper I recast McTaggart's paradox in my own terms. The notion of tense has two components: an observer-independent distinction between past, present and future, and a flow of time. Totake tense seriously is to suppose that these two features of tense are also features of time. I argue that they are inherently incompatible with each other, generating a contradiction at the heart of the notion of tense, thus proving that tense is unreal. The contradiction arises no matter how one construes the notion of tense, and I illustrate this by revealing essentially the same contradiction in a number of different accounts of tensed time.
One of the most serious obstacles to accepting a tenseless view of time is the challenge posed by our experience of tense. A particularly striking example of such experience, pointed out by Schlesinger but largely overlooked in the literature, is the wish felt by probably all of us at some time or other that it were now some other time. Such a wish seems evidently rational to hold, and yet on a tenseless theory of time such a wish must be regarded as irrational, since it is logically impossible for the now to be located at some other time, there being no such thing as an objective now or present. In order to accommodate rationally such a belief, most protagonists of tenseless time twist the evident meaning of the wish. Oaklander, for example, misconstrues the wish in terms of my wanting to have different perceptions. Others, like Coburn, admit frankly that such a wish is rational only on a tensed theory of time but mistakenly reject that theory on grounds that at best constitute a defeater of an argument for a tensed view of time, rather than a defeater of the tensed view itself. The argument for a tensed view of time from the experience of tense remains undefeated.
This paper contributes data from Paraguayan Guaraní (Tupí-Guaraní) to the discussion of how temporal reference is determined in tenseless languages. The empirical focus of this study is on finite clauses headed by verbs inflected only for person/number information, which are compatible only with non-future temporal reference in most matrix clause contexts. The paper first explores the possibility of accounting for the temporal reference of such clauses with a phonologically empty non-future tense morpheme, along the lines of Matthewson’s (Linguist Philos 29:673–713, 2006 ) analysis of a similar phenomenon in St’át’imcets (Salish). This analysis is then contrasted with one according to which temporal reference is not constrained by tense in Paraguayan Guaraní, but only by context and temporal adverbials. A comparison of the two analyses, both of which are couched in a dynamic semantic framework, suggests empirical and theoretical advantages of the tenseless analysis over the tensed one. The paper concludes with a discussion of cross-linguistic variation of temporal reference in tensed and tenseless languages.
The impression is frequently given that the static description of the 4-dimensional world given by a tenseless theory of time adequately accounts for the world and that a tensed theory of time has nothing to offer. In fact, the tenseless theory of time leaves us incapable of specifying the direction of time, whereas a tensed theory of time enables us to do so. Thus, the tensed theory enjoys a considerable advantage over the tenseless view.
McTaggart's famous argument that the A-series is contradictory is vitiated by an unsatisfactory conceptualization of tenses which can be corrected by making explicit their relational structure. This leads into a much sharper formulation of his apparent contradiction, and defusing this apparent contradiction requires a careful distinction between tensed and tenseless descriptions of thoughts. As a result the ‘unreality’ of tense turns out to rest on the fact that tensed descriptions of temporal facts do not capture their identity. This ‘metaphysical’ priority of tenseless over tensed descriptions of time is, however, counterbalanced by an ‘epistemological’ priority of tensed thoughts over tenseless thoughts: a conception of tense which requires a form of self-consciousness turns out to be an essential ingredient of rational thought.
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 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.
In response to a recent challenge that the New B-theory of Time argues invalidly from the claim that tensed sentences have tenseless truth conditions to the conclusion that temporal reality is tenseless, I argue that while early B-theorists may have relied on some such inference, New B-theorists do not. Giving tenseless truth conditions for tensed sentences is not intended to prove that temporal reality is tenseless. Rather, it is intended to undermine the A-theorist’s move from claims about the irreducibility of tensed language to the conclusion that temporal reality must be tensed. I then examine how A-theorists have used facts about language in attempting to establish their conclusions about the nature of temporal reality. I take the recent work of William Lane Craig and argue that he implicitly and illicitly moves from facts about temporal language to his conclusion that temporal reality is tensed.
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.
Discussion of Joshua M. Mozersky, Tense and temporal semantics
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