We consider the problem of measurement using the Lindblad equation, which allows the introduction of time in the interaction between the measured system and the measurement apparatus. We use analytic results, valid for weak system-environment coupling, obtained for a two-level system in contact with a measurer (Markovian interaction) and a thermal bath (non-Markovian interaction), where the measured observable may or may not commute with the system-environment interaction. Analysing the behavior of the coherence, which tends to a value asymptotically close (...) to zero, we obtain an expression for the time of measurement which depends only on the system-measurer coupling, and which does not depend on whether the observable commutes with the system-bath interaction. The behavior of the coherences in the case of strong system-environment coupling, found numerically, indicates that an increase in this coupling decreases the measurement time, thus allowing our expression to be considered the upper limit for the duration of the process. (shrink)
We investigate the thesis of Aharonov, Bergmann, and Lebowitz that time-symmetry holds in ensembles defined by both an initial and a final condition, called preand postselected ensembles. We distinguish two senses of time symmetry and show that the first one, concerning forward directed and time reversed measurements, holds if the measurement process is ideal, but fails if the measurement process is non-ideal, i.e., violates Lüders's rule. The second kind of time symmetry, concerning the interchange of (...) initial and final conditions, fails even in the case of ideal measurements. Bayes's theorem is used as a primary tool for calculating the relevant probabilities. We are critical of the concept that a pair of vectors in Hilbert space, characterizing the initial and final conditions, can be considered to constitute a generalized quantum state. (shrink)
The formal time symmetry of the quantum measurement process is extensively discussed. Then, the origin of the alleged association between a fixed temporal direction and quantum measurements is investigated. It is shown that some features of such an association might arise from epistemological rather than purely physical assumptions. In particular, it is brought out that a sequence of statements bearing on quantum measurements may display intrinsic asymmetric properties, irrespective of the location of corresponding measurements in (...) class='Hi'>time t of the Schrodinger equation. The situation of an observer performing two measurements in two opposite directions of t is eventually investigated. Essential differences are found between two descriptions of this situation: the internal one (taking only into account what is recorded in the observer's memory) and the external one (whereby the observer is considered as a quantum system ruled by the Schrodinger equation). Finally, a method allowing several observers to establish a correspondence between their memory sizes is analyzed. The most important facts that usually lead to the associating of a preferential temporal direction with quantum measurements may be inferred from this correspondence. (shrink)
Presenting the history of space-time physics, from Newton to Einstein, as a philosophical development DiSalle reflects our increasing understanding of the connections between ideas of space and time and our physical knowledge. He suggests that philosophy's greatest impact on physics has come about, less by the influence of philosophical hypotheses, than by the philosophical analysis of concepts of space, time, and motion and the roles they play in our assumptions about physical objects and physical measurements. This (...) way of thinking leads to new interpretations of the work of Newton and Einstein and the connections between them. It also offers new ways of looking at old questions about a priori knowledge, the physical interpretation of mathematics, and the nature of conceptual change. Understanding Space-Time will interest readers in philosophy, history and philosophy of science, and physics, as well as readers interested in the relations between physics and philosophy. (shrink)
Hunt asks a series of related questions about time in history. Why is time now again on the agenda, for historians and more generally in Western culture?
In this article I investigate several possibilities to define the concept of “temporal non-locality” within the standard framework of quantum theory. In particular, I analyze the notions of “temporally non-local states”, “temporally non-local events” and “temporally non-local observables”. The idea of temporally non-local events is already inherent in the standard formalism of quantum mechanics, and Basil Hiley recently defined an operator in order to measure the degree of such a temporal non-locality. The concept of temporally non-local states enters as soon (...) as “clock-representing states” are introduced in the context of special and general relativity. It is discussed in which way temporally non-local measurements may find an interesting application for experiments which test temporal versions of Bell inequalities. (shrink)
In the present paper the relation between objective and subjective time is studied from a neutral non-dualist perspective Adoption of the relational concept of time leads to fundamental problems of time measurement of the uniformity of time measures, and of a native measure of duration in subjective experience. Experimental data on discrimination and reproduction of time intervals are reviewed and relevant models of internal time representations are discussed. Special attention is given to the 'dual (...) klepsydra model' (DKM)and to the outstanding properties of the reproduction func- tion yielded by the DKM Time scales generated by a DKM-based reproduction mechanisms are studied It is shown that such 'klepsydraic clocks' generate time measures which are non-uniform with respect to objective time yet internally consistent within an ensemble of such clocks and in this sense 'quasi-uniform' . Competing concepts of subjective time and modeling principles of internal time representation are briefly discussed Some interesting parallels be- tween our psychophysical approach and E.A. Milne's treatment of the problem of uniform time are drawn in the Appendix. (shrink)
In a crucial passage of the second-edition Transcendental Deduction, Kant claims that the concept of motion is central to our understanding of change and temporal order. I show that this seemingly idle claim is really integral to the Deduction, understood as a replacement for Locke’s “physiological” epistemology (cf. A86-7/B119). Béatrice Longuenesse has shown that Kant’s notion of distinctively inner receptivity derives from Locke. To explain the a priori application of concepts such as succession to this mode of sensibility, Kant construes (...) the mind as receptive to its own activity. As Longuenesse understands Kant’s response to Locke, “motion” becomes little more than a metaphor for the action of understanding on inner sense. For Michael Friedman, in contrast, this passage evidences Kant’s deep concern with the foundations of Newtonian science. He reads it as a reference to inertial motion, the standard by which temporal intervals are measured. I show that Longuenesse’s and Friedman’s interpretations are in fact complementary. Both Locke and Kant are deeply concerned with the quantification of time. So Longuenesse is right that §24 is meant to supplant Locke’s account, and Friedman correctly takes it as the foundation of Kant’s account of the application of quantitative concepts to time. Kant aims, specifically, to explain cognition of time as continuous magnitude. However, Longuenesse leaves Kant without an answer to Locke’s challenge that continuous magnitude cannot be understood on the basis of discrete magnitude. And on Friedman’s view Kant’s account of the understanding’s activity presupposes, and thus cannot explain, the achievements of the mathematical sciences (such as the representation of temporal continuity). On my reading, Kant’s key contention is that we must regard the segregation of temporally ordered representation into units as the work of the understanding, rather than (as Locke views it) of sensibility. By giving the understanding this role, Kant succeeds where he takes Locke to fail. I show how the power to unify temporal representation can be ascribed to the understanding on the basis, not of assumed mathematical or scientific knowledge, but of its characterization as the power of judgment. (shrink)
In economics, the concept of time discounting introduces weights on future goods to make these less valuable. Yet, both the conceptual motivation for time discounting and its specic functional form remain contested. To address these problems, this paper provides a measurement-theoretic framework of representation for time discounting. The representation theorem characterises time discounting factors by representations of time dierences. This general result can be interpreted with existing theories of time discounting to clarify their formal (...) and conceptual assumptions. It also provides a conceptually neutral framework for comparing the descriptive and normative merits of those theories. (shrink)
Studies of implicit learning have shown that individuals exposed to a rule-governed environment often learn to exploit 'rules' which describe the structural relationship between environmental events. While some authors have interpreted such demonstrations as evidence for functionally separate implicit learning systems, others have argued that the observed changes in performance result from explicit knowledge which has been inadequately assessed. In this paper we illustrate this issue by considering one commonly used implicit learning task, the Serial reaction time task, and (...) outline what we see as an important problem associated with each of the commonly used methods used to assess explicit knowledge. This is that each measure requires a form of response which is dependent on the subjects having some knowledge of the serial-order of the sequence. We argue that such methods, or more specifically their analyses, seriously underestimate other sources of knowledge, which may be available to subjects during their performance of the SRT task. In support of this argument we demonstrate that subjects' serial-order knowledge can, in principle, be independent of subjects' knowledge of the statistical structure of the sequence, and we propose an alternative method for analysing performance on the Generate task which avoids this problem. (shrink)
The 'Reaction experiment with Hipp chronoscope' is one of the classical experiments of modern psychology. This paper investigates the technological contexts of this experiment. It argues that the development of time measurement and communication in other areas of science and technology (astronomy, the clock industry) were decisive for shaping the material culture of experimental in psychology. The chronoscope was constructed by Matthaus Hipp (1813-1893) in the late 1840s. In 1861, Adolphe Hirsch (1830-1901) introduced the chronoscope for measuring the 'physiological (...)time' of astronomical observers. Hirsch's observatory at Neuchatel (Switzerland) served to control the quality of clocks produced in the nearby Jura mountains. Hipp provided the observatory with a telegraphic system that sent time signals to the centers of clock production. Time telegraphy constituted the stable surroundings of the reaction time experiments carried out by both astronomers and psychologists. This technology permitted precise measurements of short time intervals and offered to Hirsch, as well as to Wilhelm Wundt (1832-1920), a useful metaphor for conceptualizing their respective 'epistemic objects'. But time telegraphy also limited the possibilities of the experimental work conducted within its framework. In particular, noise from outside and inside the research sites at Neuchatel, Leipzig and elsewhere disturbed the precise communication of time. (shrink)
I distinguish paradoxes and hypodoxes among the conundrums of time travel. I introduce ‘hypodoxes’ as a term for seemingly consistent conundrums that seem to be related to various paradoxes, as the Truth-teller is related to the Liar. In this article, I briefly compare paradoxes and hypodoxes of time travel with Liar paradoxes and Truth-teller hypodoxes. I also discuss Lewis’ treatment of time travel paradoxes, which I characterise as a Laissez Faire theory of time travel. Time (...) travel paradoxes are impossible according to Laissez Faire theories, while it seems hypodoxes are possible. (shrink)
Bergson argues for free will by showing that the arguments against it come from a confusion of different conceptions of time. As opposed to physicists' idea of measurable time, in human experience life is perceived as a continuous and unmeasurable flow rather than as a succession of marked-off states of consciousness--something that can be measured not quantitatively, but only qualitatively. His conclusion is that free will is an observable fact.
This paper outlines some key issues that arise when agency and temporality are considered jointly, from the perspective of psychology, cognitive neuroscience, phenomenology, and action theory. I address the difference between time simpliciter and time as represented as it figures in phenomena like intentional binding, goal-oriented action plans, emulation systems, and ‘temporal agency’. An examination of Husserl’s account of time consciousness highlights difficulties in generalizing his account to include a substantive notion of agency, a weakness inherited by (...) explanatory projects like neurophenomenology. I conclude by sketching a project analogous to the projects in neurophenomenology, based on Thompson’s naïve action theory. (shrink)
Thinking about time travel is an entertaining way to explore how to understand time and its location in the broad conceptual landscape that includes causation, fate, action, possibility, experience, and reality. It is uncontroversial that time travel towards the future exists, and time travel to the past is generally recognized as permitted by Einstein’s general theory of relativity, though no one knows yet whether nature truly allows it. Coherent time travel stories have added flair to (...) traditional debates over the metaphysical status of the past, the reality of temporal passage, and the existence of free will. Moreover, plausible models of time travel and time machines can be used to investigate the subtle relation between space-time structure and causality. -/- It surveys some philosophical issues concerning time travel and should serves as a quick introduction. It includes a new and improved way to define a time machine. (shrink)
McTaggart famously argued that time is unreal. Today, almost no one agrees with his conclusion. But his argument remains the locus classicus for both the A-theory and the B-theory of time. I show how McTaggart’s argument provided the impetus for both of these opposing views of the nature of time. I also present and defend what I take to be the correct view of the nature of time.
Heidegger claims in Being and Time that Bergson fails to overcome traditional ontology because his concept of time is fundamentally Aristotelian. On the basis of this hasty dismissal, it is tempting to conclude that Heidegger was not terribly interested in Bergson or that he only wanted to prevent readers from confusing his view of time with Bergson’s. To the contrary, a survey of Heidegger’s early lectures and writings on the issue of time reveals a strong interest (...) in Bergson and an acknowledgement of his importance as a pivotal thinker concerning time. In fact, Heidegger appropriates key aspects of Bergsonism, such as Bergson’s way of contrasting the measurement of time and its experiential origins, revealing that his ambivalence toward Bergson initially arises from concerns about his method and his concept of life rather than his understanding of time. (shrink)
Part I: Dimensions of time's enigma -- Is time real? -- Eleaticism, temporality, and time -- The makings of a temporal universe -- Pastness and futurity -- Synchronicity and synchronicity -- Temporal pace and measurement -- Presentness or the present -- Aristotle's real account of time -- Parmenidean time and the impossible now -- Cosmic motion and the speed of time -- Time as the motion of the cosmos -- Time as the (...) cosmos itself -- Time as motion and all change -- Temporal cognition and the return of the now -- Real temporality in an Aristotelian world -- Does Aristotle refute eleaticism? -- Bisection argument I -- Bisection argument II -- Bisection argument III -- Plotinus' vitalistic platonism and the real origins of time -- Temporality, eternality, and Plotinus' new metaphysic -- Plotinus' critique of Aristotelian motion -- Indefinite temporality and the measure of motion -- Plotinus' neoplatonic account of time. (shrink)
Weak measurements offer new insights into the behavior of quantum systems. Combined with post-selection, quantum mechanics predicts a range of new experimentally testable phenomena. In this paper I consider weak measurements performed on time-dependent pre- and post-selected ensembles, with emphasis on the decay of excited states. The results show that the standard exponential decay law is a limiting case of a more general law that depends on both the time of post-selection and the choice of final (...) state. The generalized law is illustrated for two interesting choices of post-selection. (shrink)
This article addresses the question whether supertasks are possible within the context of non-relativistic quantum mechanics. The supertask under consideration consists of performing an infinite number of quantum mechanical measurements in a finite amount of time. Recent arguments in the physics literature claim to show that continuous measurements, understood as N discrete measurements in the limit where N goes to infinity, are impossible. I show that there are certain kinds of measurements in quantum mechanics for (...) which these arguments break down. This suggests that there is a new context in which quantum mechanics, in principle, permits the performance of a supertask. (shrink)
It is proposed that the recent controversy over "time-symmetric quantum counterfactuals" (TSQCs), based on the Aharonov-Bergmann-Lebowitz Rule for measurements of pre- and post-selected systems, can be clarified by taking TSQCs to be counterfactuals with a specific type of compound antecedent. In that case, inconsistency proofs such as that of Sharp and Shanks (1993) are not applicable, and the main issue becomes not whether such statements are true, but whether they are nontrivial. The latter question is addressed and answered (...) in the negative. Thus it is concluded that TSQCs, understood as counterfactuals with a compound antecedent, are true but only trivially so, and provide no new contingent information about specific quantum systems (except in special cases already identified in literature). (shrink)
A research professor of nuclear physics explores the mysterious essence of time in its two aspects---one of accurate measurement, the other of human sensation-- ...
It sometimes happens that advances in one area of philosophy can be applied to a quite different area of philosophy, and that the result is an unexpected significant advance. I think that this is true of the philosophy of time and meta-ethics. Developments in the philosophy of time have led to a new understanding of the relation between semantics and metaphysics. Applying these insights to the field of meta-ethics, I will argue, can suggest a new position with respect (...) to moral discourse and moral reality. This new position retains the advantages of theories like moral realism and naturalism, yet is immune to many of their difficulties. (shrink)
In the context of a discussion of time symmetry in the quantum mechanical measurement process, Aharonov et al. (1964) derived an expression concerning probabilities for the outcomes of measurements conducted on systems which have been pre- and postselected on the basis of both preceding and succeeding measurements. Recent literature has claimed that a resulting "time-symmetrized" interpretation of quantum mechanics has significant implications for some basic issues, such as contextuality and determinateness, in elementary, nonrelativistic quantum mechanics. Bub (...) and Brown (1986) have shown that under the standard interpretation of the aforementioned expression, these claims employ ensembles which are not well defined. It is argued here that under a counterfactual interpretation of the expression, these claims may be understood as employing well-defined ensembles; it is shown, however, that such an interpretation cannot be reconciled with the standard interpretation of quantum mechanics. (shrink)
This paper revisits some early applications of audio-visual imaging technologies used in physiology in a dialogue with reflections on Henri Bergson’s philosophy. It focuses on the aspects of time and memory in relation to spatial representations of movement measurements and critically discusses them from the perspective of the observing participant and the public exhibitions of scientific films. Departing from an audio-visual example, this paper is informed by a thick description of the philosophical implications and contemporary discourses surrounding the (...) scientific inventions, technologies and theories of moving image technologies, representations of time, and the measurement of bodies in motion such as those by the French physiologist Étienne-Jules Marey. The application of Bergson’s thinking will show how the scientific graphing and representations of the body through technologies inevitably stand in tension with the limits and potentials of the ‘human apparatus’ and its abilities, filters and internalised processes of perception, memory and consciousness. It proposes an ontological approach to scientific imaging technologies and a critical engagement with the ‘realism’ debate in the discourse of audio-visual media. (shrink)
The paper extends the framework of outcomes in branching space-time (Kowalski and Placek [1999]) by assigning probabilities to outcomes of events, where these probabilities are interpreted either epistemically or as weighted possibilities. In resulting models I define the notion of common cause of correlated outcomes of a single event, and investigate which setups allow for the introduction of common causes. It turns out that a deterministic common cause can always be introduced, but (surprisingly) only special setups permit the introduction (...) of truly stochastic common causes. I analyse next the Bell-Aspect experiment and derive the Bell-CH inequalities. I observe that we postulate there not a common cause for outcomes of a single event but rather a common common cause that accounts for outcomes of many events, where 'events' mean 'measurements with (different) directions of polarization'. Since the inequalities are violated, I claim that no causal story can be told about the Bell correlations, where causality is subliminal and restricted by screening-off condition. Similarly, given certain intuitive principles, no deterministic story can be told about these correlations. (shrink)
If it is possible to think that human life is temporal as a whole, and we can make sense of Wittgenstein’s claim that the psychological phenomena called ‘dispositions’ do not have genuine temporal duration on the basis of a distinction between dispositions and other mental processes, we need a compelling account of how time applies to these dispositions. I undertake this here by examining the concept of expectation, a disposition with a clear nexus to time by the temporal (...) point at which the expectation is satisfied. However, it seems that we cannot always identify the beginning of an expectation, and in a few cases, its end. If so, the reduction of expectations to neural events or accompanying feelings which spread over time in the usual way seems a hard enterprise, because these processes, much as other physical processes, have a definite and largely measurable time span. Only at a higher level, that is, as part of human life, expectation can be said to be temporal. (shrink)
Of the many proposals for inferring genetic regulatory structure from microarray measurements of mRNA transcript hybridization, several aim to estimate regulatory structure from the associations of gene expression levels measured in repeated samples. The repeated samples may be from a single experimental condition, or from several distinct experimental conditions; they may be “equilibrium” measurements or time series; the associations may be estimated by correlation coefficients or by conditional frequencies (for discretized measurements) or by some other statistic. (...) This paper describes two elementary statistical difficulties for all such procedures, no matter whether based on Bayesian updating, conditional independence testing, or other machine learning procedures such as simulated annealing or neural net pruning. One difficulty obtains if large numbers of cells are aggregated in a measurement of expression levels from a common population of cells; the other obtains if small numbers of cells are aggregated or if samples are separately aggregated over different populations of cells. (shrink)
Of the many proposals for inferring genetic regulatory structure from microarray measurements of mRNA transcript hybridization, several aim to estimate regulatory structure from the associations of gene expression levels measured in repeated samples. The repeated samples may be from a single experimental condition, or from several distinct experimental conditions; they may be “equilibrium” measurements or time series; the associations may be estimated by correlation coefficients or by conditional frequencies (for discretized measurements) or by some other statistic. (...) This paper describes two elementary statistical difficulties for all such procedures, no matter whether based on Bayesian updating, conditional independence testing, or other machine learning procedures such as simulated annealing or neural net pruning. One difficulty obtains if large numbers of cells are aggregated in a measurement of expression levels from a common population of cells; the other obtains if small numbers of cells are aggregated or if samples are separately aggregated over different populations of cells. (shrink)
While experience tells us that time flows from the past to the present and into the future, a number of philosophical and physical objections exist to this commonsense view of dynamic time. In an attempt to make sense of this conundrum, philosophers and physicists are forced to confront fascinating questions, such as: Can effects precede causes? Can one travel in time? Can the expansion of the Universe or the process of measurement in quantum mechanics define a direction (...) in time? In this book, researchers from both physics and philosophy attempt to answer these issues in an interesting, yet rigorous way. This fascinating book will be of interest to physicists and philosophers of science and educated general readers interested in the direction of time. (shrink)
Presentism is the view that only present entities exist. Recently, several authors have asked the question whether presentism is able to account for cross-time relations, i.e., roughly, relations between entities existing at different times. In this paper I claim that this question is to be answered in the affirmative. To make this claim plausible, I consider four types of cross-time relation and show how each can be accommodated without difficulty within the metaphysical framework of presentism.
I take up Kant's remarks about a "transcendental deduction" of the "concepts of space and time" (A87/B119-120). I argue for the need to make a clearer assessment of the philosophical resources of the Aesthetic in order to account for this transcendental deduction. Special attention needs to be given to the fact that the central task of the Aesthetic is simply the "exposition" of these concepts. The Metaphysical Exposition reflects upon facts about our usage to reveal our commitment to the (...) idea that these concepts refer to pure intuitions. But the legitimacy of these concepts still hangs in the balance: these concepts may turn out to refer to nothing real at all. The subsequent Transcendental Exposition addresses this issue. The objective validity of the concepts of space and time, and hence their transcendental deduction, hinges on careful treatment of this last point. (shrink)
Extending on an earlier paper [Found. Phys. Ltt., 16(4) 343–355, (2003)], it is argued that instants of time and the instantaneous (including instantaneous relative position) do not actually exist. This conclusion, one which is also argued to represent the correct solution to Zeno’s motion paradoxes, has several implications for modern physics and for our philosophical view of time, including that time and space cannot be quantized; that contrary to common interpretation, motion and change are compatible with the (...) “block” universe and relativity; and that time, space, and space-time too, cannot exist. Instead, motion and change become the major players. (shrink)
In the present paper, I offer a new argument to show that presentism about time is incompatible with time travel. Time travel requires leaving the present, which, under presentism, contains all of reality. Therefore to leave the present moment is to leave reality entirely; i.e. to go out of existence. Presentist “time travel” is therefore best seen as a form of suicide, not as a mode of transportation. Eternalists about time do not face the same (...) difficulty, and time travel is compossible with eternalism. (shrink)
The issue of time-awareness presents a critical challenge for empiricism: if temporal properties are not directly perceived, how do we become aware of them? A unique empiricist account of time-awareness suggested by Hume's comments on time in the Treatise avoids the problems characteristic of other empiricist accounts. Hume's theory, however, has some counter-intuitive consequences. The failure of empiricists to come up with a defensible theory of time-awareness lends prima facie support to a non-empiricist theory of ideas.
The question of the existence and the properties of time has been subject to debate for thousands of years. This considered and complete study offers a contrastive analysis of phenomenologies of time from the perspective of the problematics of the visibility of time. Is time perceptible only through the veil of change? Or is there a naked presence of "time itself"? Or has time always effaced itself? McClure's new work also stages confrontations between phenomenology (...) of time and analytical philosophy of time. By doing so he explores ancient issues from a fresh perspective, such as whether time passes, whether experimental time is "real time," and whether the very concept of time is contradictory. (shrink)
For Vajrayana Buddhism, the now is an interval, a boundary, a point of tension and suspension with an atmosphere of uncertainty. It is a bifurcation point of variable length; its name is “bardo.” The bardo is immersed in the conventional, or “seeming” reality. It emerges from what is called the “unstained” ultimate or primordial emptiness or “basal clear light.” Further, the ultimate (basal clear light) is not the sphere of cognition. Cognition, including cognition of time, belongs to conventional (...) reality. Buddhahood, in contrast, is a condition of uncompounded knowledge where basic mind blossoms without temporal or other cognitive distinctions, unmade, unfabricated, luminous and pristine. -/- Cyclical existence involves both the ultimate and the conventional as it moves through six bardos—all of which are the effulgent of the basal clear light—until Buddhahood. The six are: the bardo of this life (or birth); the bardo of dream; the bardo of meditation; the bardo of dying; the bardo of dharmata (or reality); and the bardo of existence. Each realm is both ultimate and conventional, and has specific initiation-based yogas to investigate these differences. The process of transition from one to the next involves at least three bodies, one mind, and aspects of speech. -/- In each bardo, the character of the now as embodiment and temporal knowing varies yet a complete and consistent cross-bardo yogic wisdom leads to its total cessation in the basal clear light; the now is extinguished. -/- The author presents, from the viewpoint of a knowledgeable practitioner of over 30 years, an essay on Vajrayana Buddhist time, drawing implications for Fraser’s time typology. The essay will draw from English translations of significant older, tantric texts on dream yoga (Tsongkhapa, 1996), deity yoga (Fremantle, 2001), the Chod (Edou, 1996), tantric time (T. Gyatso, 1985; Prasad, 1991; Berzin,1997; Lamrimpa, 1999; and K. Gyatso, 2004), the bardo of death (Fremantil 2001), and empowerment (Rangdrol, 1993). Useful practices that can be applied by the audience to test the tradition and author’s assertions will be suggested (Tulku, 1977). (shrink)
Argues that standard interpretations of Merleau-Ponty's criticisms of Sartrean freedom fail and presents an alternative interpretation that argues that the fundamental issue concerns their different theories of time.
Time is the only book that offers a comprehensive history of the philosophy of time in western philosophy from the Greeks through the 20th century. Philip Turetzky explores theories in ancient and modern philosophy chronologically, from Aristotle to Nietzsche. He then describes the philosophy of time in three 20th century philosophical traditions: analytic philosophy, phenomenology and the distaff tradition. The book compares and contrasts the way these traditions treat time in regard to appearances, empiricism, existence, privileged (...) ontological relations, and pragmatic concerns. Time will be an intriguing and enlightening read for anyone who has wondered about the nature of time. (shrink)
How do ordinary objects persist through time and across possible worlds ? How do they manage to have their temporal and modal properties ? These are the questions adressed in this book which is a "guided tour of theories of persistence". The book is divided in two parts. In the first, the two traditional accounts of persistence through time (endurantism and perdurantism) are combined with presentism and eternalism to yield four different views, and their variants. The resulting views (...) are then examined in turn, in order to see which combinations are appealing and which are not. It is argued that the 'worm view' variant of eternalist perdurantism is superior to the other alternatives. In the second part of the book, the same strategy is applied to the combinations of views about persistence across possible worlds (trans-world identity, counterpart theory, modal perdurants) and views about the nature of worlds, mainly modal realism and abstractionism. Not only all the traditional and well-known views, but also some more original ones, are examined and their pros and cons are carefully weighted. Here again, it is argued that perdurance seems to be the best strategy available. (shrink)
Abstract The article is a reading, in conjunction with one-another, of Time and Being and What is metaphysics. Its scope is that of raising questions on certain Heideggerian topics that are here formulated as thesis. Namely, first that the turn in Heidegger’s thinking is not a change in his process of thinking, but rather an essential trait of what Heidegger calls the matter at hand (Sachverhalt). Secondly, that this turn of the matter at hand is in itself memory in (...) a twofold way: as metaphysics in its relation to being and time, and as questioning of this metaphysical relation. And finally, that this turn is a technical one, in the sense of technique as this latter is, in Heidegger’s thinking, the original determination of Being as Anwesenheit. (shrink)
This thesis is about the conceptualization of persistence of physical, middle-sized objects within the theoretical framework of the revisionary ‘B-theory’ of time. According to the B-theory, time does not flow, but is an extended and inherently directed fourth dimension along which the history of the universe is ‘laid out’ once and for all. It is a widespread view among philosophers that if we accept the B-theory, the commonsensical ‘endurance theory’ of persistence will have to be rejected. The endurance (...) theory says that objects persist through time by being wholly present at distinct times as numerically the same entity. Instead of endurantism, it has been argued, we have to adopt either ‘perdurantism’ or the ‘stage theory’. Perdurantism is the theory that objects are four-dimensional ‘space-time worms’ persisting through time by having distinct temporal parts at distinct times. The stage theory says that objects are instantaneous temporal parts (stages) of space-time worms, persisting by having distinct temporal counterparts at distinct times. In the thesis, it is argued that no good arguments have been provided for the conclusion that we are obliged to drop the endurance theory by acceptance of the B-theory. This conclusion stands even if the endurance theory incorporates the claim that objects endure through intrinsic change. It is also shown that perdurantism and the stage theory come with unwelcome consequences. -/- Paper I demonstrates that the main arguments for the view that objects cannot endure in B-time intrinsically unchanged fail. Papers II and III do the same with respect to the traditional arguments against endurance through intrinsic change in B-time. Paper III also contains a detailed account of the semantics of the tenseless copula, which occurs frequently in the debate. The contention of Paper IV is that four-dimensional space-time worms, as traditionally understood, are not suited to take dispositional predicates. In Paper V, it is shown that the stage theory needs to introduce an overabundance of persistence-concepts, many of which will have to be simultaneously applicable to a single object (qua falling under a single sortal), in order for the theory to be consistent. The final article, Paper VI, investigates the sense in which persistence can, as is sometimes suggested, be a ‘conventional matter’. It also asks whether alleged cases of ‘conventional persistence’ create trouble for the endurance theory. It is argued that conventions can only enter at a trivial semantic level, and that the endurance theory is no more threatened by such conventions than are its rivals. (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)
The theorist who denies the objective reality of non-relational temporal properties, or ‘A-series’ determinations, must explain our experience of the passage of time. D.H. Mellor, a prominent denier of the objective reality of temporal passage, draws, in part, on Kant in offering a theory according to which the experience of temporal passage is the result of the projection of change in belief. But Mellor has missed some important points Kant has to make about time-awareness. It turns out that (...) Kant's theory of time-awareness also involves projection – but for him, the projection of temporal passage is necessary to any coherent experience at all, and for this reason events in the world cannot be represented except as exhibiting real tensed change. Consequently we cannot intelligibly suppose the world we know to be without the passage of time. This fact would permit a modest transcendental argument the conclusion of which is that we are entitled to describe the world in terms of temporal passage. (shrink)
In Being and Time Heidegger gives an account of the distinctive features of human existence, in an attempt to answer the question of the meaning of being. He finds that underlying all of these features is what he calls 'original time'. In this clear and straightforward introduction to the text, Paul Gorner takes the reader through the work, examining its detail and explaining the sometimes difficult language which Heidegger uses. The topics which he covers include being-in-the-world, being-with, thrownness (...) and projection, truth, authenticity, time and being, and historicity. His book makes Being and Time accessible to students in a way that conveys the essence of Heidegger's project and remains true to what is distinctive about his thinking. (shrink)
Mind, it has recently been argued1, is a thoroughly temporal phenomenon: so temporal, indeed, as to defy description and analysis using the traditional computational tools of cognitive scientific understanding. The proper explanatory tools, so the suggestion goes, are instead the geometric constructs and differential equations of Dynamical Systems Theory. I consider various aspects of the putative temporal challenge to computational understanding, and show that the root problem turns on the presence of a certain kind of causal web: a web that (...) involves multiple components (both inner and outer) linked by chains of continuous and reciprocal causal influence. There is, however, no compelling route from such facts about causal and temporal complexity to the radical anti- computationalist conclusion. This is because, interactive complexities notwithstanding, the computational approach provides a kind of explanatory understanding that cannot (I suggest) be recreated using the alternative resources of pure Dynamical Systems Theory. In particular, it provides a means of mapping information flow onto causal structure -- a mapping that is crucial to understanding the distinctive kinds of flexibility and control characteristic of truly mindful engagements with the world. Where we confront especially complex interactive causal webs, however, it does indeed become harder to isolate the syntactic vehicles required by the computational approach. Dynamical Systems Theory, I conclude, may play a vital role in recovering such vehicles from the burgeoning mass of real-time interactive complexity. (shrink)
ABSTRACT: For the most part, this paper is not a philosophical paper in any strict sense. Rather, it focuses on the numerous exegetical puzzles in Sextus Empiricus’ two main passages on time (M X.l69-247 and PH III.l36-50), which, once sorted, help to explain how Sextus works and what the views are which he examines. Thus the paper provides an improved base from which to put more specifically philosophical questions to the text. The paper has two main sections, which can, (...) by and large, be read independently. Each is about a topic which, to my knowledge, has so far not been treated in detail. The first section is concemed with the argument structures of the two main passages on time in Sextus, pointing out various irregularities in the overall argument in both passages, as well as parallels and differences, and asks the question what kinds of scepticism and sceptical methods We find in the various parts of each passage. The second section focuses on the doxographical accounts of time in the two passages: what they are, how they compare with surviving parallels, to what philosophers we can attribute those accounts for which Sextus himself provides either no, or more than one, possible ascriptions, and how Sextus treats the doxographical material. This discussion is inspired by the contributions Michael Frede offered on this topic the day before his untimely death. (shrink)
Introduction -- Fatalism, free will, and foreknowledge -- Mind, the metric, and conventionality -- Time travel and backward causation -- Time's origin, and relationism vs. substantivalism -- McTaggart, tensed facts, and time's flow -- Presentism, the block universe, and perduring objects -- The arrow of time -- Zeno's paradoxes and supertasks.
Francois Recanati has recently argued that each perceptual state has two distinct kinds of content, complete and explicit content. According to Recanati, the former is a function of the latter and the psychological mode of perception. Furthermore, he has argued that explicit content is temporally neutral and that time-consciousness is a feature of psychological mode. In this paper it is argued, pace Recanati, that explicit content is not temporally neutral. Recanati’s position is initially presented. Three desiderata for a theory (...) of time-consciousness are subsequently introduced. It is then argued that a theory locating time-consciousness as a feature of psychological mode will fail to satisfy these desiderata. In the last section the intentionality of memories is discussed. Using the notion of shiftable indexical, it is argued that memories have the same explicit content as perceptions, but that they nevertheless can have different conditions of satisfaction since they are entertained in different modes. (shrink)
The final work of a distinguished physicist, this remarkable volume examines the emotive significance of time, the time order of mechanics, the time direction of thermodynamics and microstatistics, the time direction of macrostatistics, and the time of quantum physics. Coherent discussions include accounts of analytic methods of scientific philosophy in the investigation of probability, quantum mechanics, the theory of relativity, and causality. "[Reichenbach’s] best by a good deal."—Physics Today. 1971 ed.
: We seem to directly perceive external things. But can we? According to the time-lag argument, we cannot. What we directly perceive happens now. There is a time-lag between our perceptions and the external things we seem to directly perceive; these external things happen in the past; thus, what we directly perceive must be something else, for example, sense-data, and we can only at best indirectly perceive other things. This paper examines the time-lag argument given contemporary metaphysics. (...) I argue that this argument is not as compelling as it may initially seem. First, it denies that what we directly perceive can ever be what it seems to be; second, it conflicts with the current physical conception of time, relativity theory. This latter point leads to a more general one: the argument's force depends on a particular metaphysical conception on time, presentism, which is controversial in contemporary metaphysics of time. Given the alternative conception, eternalism, the argument is much less compelling. The overall argument of this paper, then, is that, if one wishes to hold that we directly perceive external things, we should subscribe to the latter view of time, i.e., eternalism. (shrink)
In Book IV, Chapter 11 of the Physics, Aristotle claims that ‘the before and after’ exists in time because it also exists in change, and it exists in change because it also exists in magnitude, and, further, that ‘time follows change’ and ‘change follows magnitude’.1 This is usually taken to mean that moments of time correspond to momentary stages of changes, and that momentary stages of changes correspond to points in magnitudes, so that time derives its (...) ‘before and after’ from that of change, and change from that of magnitude.2 But this is widely thought to land Aristotle in the following diffi culty: If Socrates walks between points A and C, for instance, he can either proceed from point A to point.. (shrink)
Space and time are the most fundamental features of our experience of the world, and yet they are also the most perplexing. Does time really flow, or is that simply an illusion? Did time have a beginning? What does it mean to say that time has a direction? Does space have boundaries, or is it infinite? Is change really possible? Could space and time exist in the absence of any objects or events? What, in the (...) end, are space and time? Do they really exist, or are they simply the constructions of our minds? Robin Le Poidevin provides a clear, witty, and stimulating introduction to these deep questions and many other mind-boggling puzzles and paradoxes. He gives a vivid sense of the difficulties raised by our ordinary ideas about space and time, but he also gives us the basis to think about these problems independently, avoiding large amounts of jargon and technicality. His book is an invitation to think philosophically rather than a sustained argument for particular conclusions, but Le Poidevin does advance and defend a number of controversial views. He argues, for example, that time does not actually flow, that it is possible for space and time to be both finite and yet be without boundaries, and that causation is the key to an understanding of one of the deepest mysteries of time: its direction. Drawing on a variety of vivid examples from science, history, and literature, Travels in Four Dimensions brings to life some of the most profound questions imaginable. (shrink)
In what follows, I suggest that, against most theories of time, there really is an actual present, a now, but that such an eternal moment cannot be found before or after time. It may even be semantically incoherent to say that such an eternal present exists since “it” is changeless and formless (presumably a dynamic chaos without location or duration) yet with creative potential. Such a field of near-infinite potential energy could have had no beginning and will have (...) no end, yet within it stirs the desire to experience that brings forth singularities, like the one that exploded into the Big Bang (experiencing itself through relative and relational spacetime). From the perspective of the eternal now of near-infinite possibilities (if such a sentence can be semantically parsed at all), there is only the timeless creative present, so the Big Bang did not happen some 13 billion years ago. Inasmuch as there is neither time past nor time future nor any time at all at the null point of forever, we must understand the Big Bang (and all other events) as taking place right here and now. In terms of the eternal now, the beginning is happening now and we just appeared (and are always just appearing) to witness it. The rest is all conscious construction; time and experience are so entangled, they need each other to exist. (shrink)
By examining Dainton's account of the temporality of consciousness in the context of long-running debates about the specious present and time consciousness in both the Jamesian and the phenomenological traditions, I raise critical objections to his overlap model. Dainton's interpretations of Broad and Husserl are both insightful and problematic. In addition, there are unresolved problems in Dainton's own analysis of conscious experience. These problems involve ongoing content, lingering content, and a lack of phenomenological clarity concerning the central concept of (...) overlapping experiences. (shrink)
This paper aims to investigate the temporal content of perceptual experience. It argues that we must recognize the existence of temporal perceptions, i.e., perceptions the content of which cannot be spelled out simply by looking at what is the case at an isolated instant. Acts of apprehension can cover a succession of events. However, a subject who has such perceptions can fall short of having a concept of time. Similar arguments have been put forward to show that a subject (...) who has spatial perceptions can fall short of having a concept of space. In both cases, it is the fact that perception is from a point of view which stands in the way of it constituting an exercise of a concept of how things are objectively. However, the paper also shows that the way in which perception is perspectival takes a different form in each of the two cases. (shrink)
The literature on time perception is discussed. This is done with reference both to the ''cognitive-timer'' model for time estimation and to the subjective experience of apparent duration. Three assumptions underlying the model are scrutinized. I stress the strong interplay among attention, arousal, and time perception, which is at the base of the cognitive-timer model. It is suggested that a multiplicative function of two key components (the number of subjective time units and their size) should predict (...) apparent duration. Implications for other cognitive domains are drawn, and in particular an analogy is suggested between apparent duration and apparent movement. (shrink)
Time, Change and Freedom is the first introduction to metaphysics that uses the idea of time as a unifying principle. Time is used to relate the many issues involved in the complex study of metaphysics. Sections of the book are written in dialogue form which allows the reader to question the theories while they read and have those queries answered in the text. In addition, the authors provide glossaries of key terms as well as recommendations for further (...) reading at the conclusion of each chapter. Quentin Smith and L. Nathan Oaklander examine the tensions between determinism and freedom, temporality and historical change as well as an array of other issues fundamental to introductory metaphysics. (shrink)
This is a study of the nature of time. In it, redeploying an argument first presented by McTaggart, the author argues that although time itself is real, tense is not. He accounts for the appearance of the reality of tense - our sense of the passage of time, and the fact that our experience occurs in the present - by showing how time is indispensable as a condition of action. Time itself is further analysed, and (...) Dr Mellor gives answers to most of the metaphysical questions it provokes, concerning the relation of time to space, the dissection of time, and its relation to change and causation. (shrink)
Quantum field theory (QFT) combines quantum mechanics with Einstein's special theory of relativity and underlies elementary particle physics. This book presents a philosophical analysis of QFT. It is the first treatise in which the philosophies of space-time, quantum phenomena, and particle interactions are encompassed in a unified framework. Describing the physics in nontechnical terms, and schematically illustrating complex ideas, the book also serves as an introduction to fundamental physical theories. The philosophical interpretation both upholds the reality of the quantum (...) world and acknowledges the irreducible cognitive elements in its representation. The interpretation is based on an analysis of our ways of thinking as the are embedded in the logical structure of QFT. The author argues that philosophical categories are significant only if they play active and essential roles in our knowledge and hence constitute part of the theories in actual use. Thus she regards physical theories as primary, extracts their categorical structure, and uses it to rethink key philosophical questions. Among the questions this book tries to answer are: What are the quantum properties independent of measurements? How do we refer to individual things in a continuous field? How do theories relate to objects? What are the general conditions of the world and of our ways of thinking that make possible our knowledge of the microscopic realm, which is so intangible and counterintuitive? As a penetrating analysis of vital themes in contemporary science, the book will engage the interest of students and professionals in physics and philosophy alike. (shrink)
Evidence that led to the hypothesis of a backwards referral of conscious sensory experiences in time, and the experimental tests of its predictions, is summarized. Criticisms of the data and the conclusion by Churchland that this hypothesis is untenable are analysed and found to be based upon misconceptions and faulty evaluations of facts and theory. Subjective referral in time violates no neurophysiological principles or data and is compatible with the theory of "mental" and "physical" correspondence.
This paper examines Maurice Merleau-Ponty’s later philosophy of time in light of his critique and reconceptualization of Edmund Husserl’s early time-analyses. Drawing on The Visible and the Invisible and lecture courses, I elaborate Merleau-Ponty’s re-reading of Husserl’s time-analyses through the lens of Rudolf Bernet’s “Einleitung” to this work. My question is twofold: what becomes of the central Husserlian concepts of present and retention in Merleau-Ponty’s later work, and how do Husserl’s elisions, especially of the problem of forgetting, (...) become generative moments for Merleau-Ponty’s thought on time? The answer passes through the logic of institution as the “retrograde movement of the true” (Henri Bergson) and through unconsciousness as disarticulation of the perceptual field, as Merleau-Ponty attempts to detach Husserlian concepts from the philosophy of consciousness and rehabilitate them within an ontology of time. (shrink)
Informed by the philosophy of the virtual, Keith Ansell Pearson offers up one of the most lucid and original works on the central philosophical questions. He asks that if our basic concepts on what it means to be human are wrong then, what is this to mean for our ideas of time, being, consciousness? A critical examination ensues, one informed by a multitude of responses to a large number of philosophers. Under discussion is the mathematical limits as found in (...) Russell, questions on Relativity, Kant's notion of judgement, Popper, Dennett, Dawkins and Proust. He brings into the rapport the concepts of Bergson and their explosive insights into the idea of time. (shrink)
These nine essays address fundamental questions about time in philosophy, physics, linguistics, and psychology. Are there facts about the future? Could we affect the past? In physics, general relativity and quantum theory give contradictory treatments of time. So in the current search for a theory of quantum gravity, which should give way: general relativity or quantum theory? In linguistics and psychology, how does our language represent time, and how do our minds keep track of it?
Real Time II extends and evolves D.H. Mellor's classic exploration of the philosophy of time, Real Time . This wholly new book answers such basic metaphysical questions about time as: how do past, present and future differ, how are time and space related, what is change, is time travel possible? His Real Time dominated the philosophy of time for fifteen years. This book will do the same for the next twenty years.
The Principle of Alternative Possibilities is the intuitive idea that someone is morally responsible for an action only if she could have done otherwise. Harry Frankfurt has famously presented putative counterexamples to this intuitive principle. In this paper, I formulate a simple version of the Principle of Alternative Possibilities that invokes a course-grained notion of actions. After warming up with a Frankfurt-Style Counterexample to this principle, I introduce a new kind of counterexample based on the possibility of time travel. (...) At the end of the paper, I formulate a more sophisticated version of the Principle of Alternative Possibilities that invokes a certain fine grained notion of actions. I then explain how this new kind of counterexample can be augmented to show that even the more sophisticated principle is false. (shrink)
This paper explores the distinction between perceiving an object as extended in time, and experiencing a sequence of perceptions. I argue that this distinction cannot be adequately described by any present theory of time-consciousness and that in order to solve the puzzle, we need to consider perceptual content as having three distinct constituents: Explicit content, which has a particular phenomenal character, modal content, or the kind of content that is contributed by the psychological mode, and implicit content, which (...) lacks phenomenal character. These notions are then further clarified and related to each other. (shrink)
Miller (2005) and Miller (2008) argue that the branching picture of time is incompatible with the possibility of backwards time travel. In this paper I show that Miller’s conclusion is based on a hidden assumption which, while generally plausible, is unwarranted if time travel is possible. Branching time is, after all, compatible with time travel as Miller characterises it.
Bertrand Russell famously argued that causation is not part of the fundamental physical description of the world, describing the notion of cause as "a relic of a bygone age." This paper assesses one of Russell’s arguments for this conclusion: the ‘Directionality Argument’, which holds that the time symmetry of fundamental physics is inconsistent with the time asymmetry of causation. We claim that the coherence and success of the Directionality Argument crucially depends on the proper interpretation of the ‘ (...) class='Hi'>time symmetry’ of fundamental physics as it appears in the argument, and offer two alternative interpretations. We argue that: (1) if ‘time symmetry’ is understood as the time-reversal invariance of physical theories, then the crucial premise of the Directionality Argument should be rejected; and (2) if ‘time symmetry’ is understood as the temporally bidirectional nomic dependence relations of physical laws, then the crucial premise of the Directionality Argument is far more plausible. We defend the second reading as continuous with Russell’s writings, and consider the consequences of the bidirectionality of nomic dependence relations in physics for the metaphysics of causation. (shrink)
No-futurists ('growing block theorists') hold that that the past and the present are real, but that the future is not. The present moment is therefore privileged: it is the last moment of time. Craig Bourne (2002) and David Braddon-Mitchell (2004) have argued that this position is unmotivated, since the privilege of presentness comes apart from the indexicality of 'this moment'. I respond that no-futurists should treat 'x is real-as-of y' as a nonsymmetric relation. Then different moments are real-as-of different (...) times. This reunites privilege with indexicality, but entails that no-futurists must believe in ineliminably tensed facts. (shrink)
Drawing on findings in psychology, neuroscience, and utilising the perspective of cognitive linguistics, this work argues that our experience of time may...
Although considerations based on contemporary space-time theories, such as special and general relativity, seem highly relevant to the debate about persistence, their significance has not been duly appreciated. My goal in this paper is twofold: (1) to reformulate the rival positions in the debate (i.e., endurantism [three-dimensionalism] and perdurantism [four-dimensionalism, the doctrine of temporal parts]) in the framework of special relativistic space-time; and (2) to argue that, when so reformulated, perdurantism exhibits explanatory advantages over endurantism. The argument builds (...) on the fact that four-dimensional entities extended in space as well as time are relativistically invariant in a way three-dimensional entities are not. (shrink)
The philosophical relationship that obtains between the work of Merleau-Ponty and Derrida has continued to intrigue and preoccupy many of us despite, or perhaps even partly because of, the fact that Derrida did not accord the work of Merleau-Ponty much attention during his remarkably prolific career. Two relatively recent books of Derrida’s have addressed this gap: Memoirs of the Blind and, more recently, On Touching. However, although Derrida proposes an “entire re-reading” of the later Merleau-Ponty in Memoirs of the Blind, (...) with the clear implication that there are hitherto unaccessed and invaluable resources to be mined in this body of work, I will suggest that the actual reading of Merleau-Ponty propounded in On Touching falls well short of this ambition. While this chapter will raise some critical questions about the interpretation that Derrida offers of Merleau-Ponty in ‘Exemplary Stories of the Flesh: Tangent 3’, including the implication that his work on the senses and intersubjectivity remains mired in theological prejudices, it will also be concerned to examine the transcendental philosophy of time (or philosophy of the contretemps that breaks open time but nonetheless pertains to it) that undergirds and motivates Derrida’s engagement with the philosophies of touch. In this latter respect, I will argue that Derrida’s philosophy is itself ‘touched’ by time, in the peculiar sense of ‘touched’ that connotes affected and wounded. On my reading, his work instantiates an ethics of non-presentist time, an ethics of that time which is the transcendental condition of the present and any event of touch. I ask whether this prevarication on the issue of the transcendental and the ethical is reason to look for a different understanding of both time and the transcendental to Derrida’s, and I end this chapter by once more proposing a dialectic between the disjunctive and conjunctive aspects of time that does not accord any kind of a priori privilege to the one over the other. (shrink)
What is the relation between time and change? Does time depend on the mind? Is the present always the same or is it always different? Aristotle tackles these questions in the Physics. In the first book in English exclusively devoted to this discussion, Ursula Coope argues that Aristotle sees time as a universal order within which all changes are related to each other. This interpretation enables her to explain two striking Aristotelian claims: that the now is like (...) a moving thing, and that time depends for its existence on the mind. (shrink)
Introduction Ordinary experience seems both to take place in time and to concern things that happen in time. This seemingly simple fact is the starting ...
James argued that time is a sensation, and the main point of this paper is to deny that claim. The concept of the specious present is explained, indicating how it clarifies the concept of "the present moment." But neither it nor an argument used by Mach and James show time to be a sensation. The analysis presented here requires distinguishing concepts of sensation from concepts of temporal relations. James' view is really a theory that time-as-duration is sensed. (...) But this assumes that the description of time as sensed is also a description of time as an objective property of independent events. This is nowhere established, and making it plausible is a recurrent problem for philosophies like neutral monism and radical empiricism. (shrink)
This book brings together new essays on a major focus of debate in contemporary metaphysics: does time really pass, or is our ordinary experience of time as consisting of past, present, and future an illusion? The international contributors broaden this debate by demonstrating the importance of questions about the nature of time for philosophical issues in ethics, aesthetics, psychology, science, religion, and language.
Machine generated contents note: Preface; Introduction; Part I. Times New and Old: 1. McTaggart's systems; 2. Countenancing the Doxai; Part II. The Mater of Time: Motion: 3. Time is not motion; 4. Aristotelian motion (Kinesis); 5. 'The before and after in motion'; Part III. The Form of Time: Perception: 6. Number (Arithmos) and perception (Aisthesis); 7. On a moment's notice; 8. The role of imagination; 9. Time and the common perceptibles; 10. The hylomorphic interpretation illustrated; Part (...) IV. Simultaneity and Temporal Passage: 11. Simultaneity and other temporal relations; 12. Temporal passage; 13. Dissolving the puzzles of IV.10; 14. Concluding summary and historical significance; Bibliography. (shrink)
models of cognition are essentially incomplete because they fail to capture the temporal properties of mental processing. I present two possible interpretations of the dynamicists' argument from time and show that neither one is successful. The disagreement between dynamicists and symbolic theorists rests not on temporal considerations per se, but on differences over the multiple realizability of cognitive states and the proper explanatory goals of psychology. The negative arguments of dynamicists against symbolic models fail, and it is doubtful whether (...) pursuing dynamicists' explanatory goals will lead to a robust psychological theory. Introduction Elements of the symbolic theory Elements of dynamical systems theory The argument from time 4.1 First interpretation of the argument from time 4.2 Second interpretation of the argument from time Limits of dynamical systems theory. (shrink)
Shaun Gallagher's The Inordinance of Time develops an account of the experience of time at the intersection of three approaches: phenomenology, cognitive ...
Time and Memory throws new light on fundamental aspects of human cognition and consciousness by bringing together, for the first time, psychological and philosophical approaches dealing with the connection between the capacity to represent and think about time, and the capacity to recollect the past. Fifteen specially written essays offer insights into current theories of memory processes and of the mechanisms and cognitive abilities underlying temporal judgements, and draw out key issues concerning the phenomenology and epistemology of (...) memory and its role in our understanding of time. (shrink)
Looks at the history of the idea of time, the origins of the universe, relativity, life, the brain's perception of time, aging, death, memory, and time keeping ...
After discussing Kant's interpretation of time and Heidegger's productive misreading of Kant, Hoy examines the work of Hegel, Husserl, Heidegger, Merleau-Ponty, ...
This essay examines Deleuze's account of time and the wound in The Logic of Sense and, to a lesser extent, in Difference and Repetition. As such, it will also explicate his understanding of the event, as well as the notoriously opaque ethics of counter-actualisation that are bound up with it, before raising certain problems that are associated with the transcendental and ethical priority that he accords to the event and what he calls the time of Aion. I will (...) conclude by proposing a dialectic between the two aspects of time that he counterposes (Aion and Chronos, roughly the disjunctive and the conjunctive) that does not instantiate any kind of a priori privilege of the one over the other. (shrink)
Is what could have happened but never did as real as what did happen? What did happen, but isn't happening now, happened at another time. Analogously, one can say that what could have happened happens in another possible world. Whatever their views about the reality of such things as possible worlds, philosophers need to take this analogy seriously. Adriane Rini and Max Cresswell exhibit, in an easy step-by-step manner, the logical structure of temporal and modal discourse, and show that (...) every temporal construction has an exact parallel that requires a language that can refer to worlds, and vice versa. They make precise, in a way which can be articulated and tested, the claim that the parallel is at work behind even ordinary talk about time and modality. The book gives metaphysicians a sturdy framework for the investigation of time and modality - one that does not presuppose any particular metaphysical view. (shrink)
Introduction : the course of the argument -- Substance poem versus function poem : two poems of Friedrich Hölderlin -- Entering the phenomenological school and discovering the color of shame -- Existence toward space : two "Rainbows" from around 1916 -- The problem of historical time : conversing with Scholem, criticizing Heidegger in 1916 -- Meaning in the proper sense of the word : "On language as such and on human language" and related logico-linguistic studies -- Pure knowledge and (...) the continuity of experience : "On the program of the coming philosophy" and its supplements -- The political counterpart to pure practical reason : from Kant's doctrine of right to Benjamin's category of justice -- Conclusion : the shape of time. (shrink)
Our world is full of composite objects that persist through time: dogs, persons, chairs and rocks. But in virtue of what do a bunch of little objects get to compose some bigger object, and how does that bigger object persist through time? This book aims to answer these questions, but it does so by looking at accounts of composition and persistence through a new methodological lens. It asks the question: what does it take for two theories to be (...) genuinely different, and how can we know whether what seems like metaphysical disagreement is really just semantic disagreement? By offering a framework within which to explore issues of theoretical diversity, this book provides a novel way of thinking about the inter-relationship between composition and persistence. Ultimately, it argues for a new way of thinking about these issues, a way that does not preserve the standard theoretical dichotomies between four-dimensionalist theories on the one hand, and three-dimensionalist theories on the other. (shrink)
Visit the author's Web site at www.11PicsOfTime.com Time is a mystery that has perplexed humankind since time immemorial. Resolving this mystery is of significance not only to philosophers and physicists but is also a very practical concern. Our perception of time shapes our values and way of life; it also mediates the interaction between science and religion both of which rest fundamentally on assumptions about the nature of time. C K Raju begins with a critical exposition (...) of various time-beliefs, ranging from the earliest times through Augustine, Newton and Einstein to Stephen Hawking and current notions of chaos and time travel. He traces the role of organised religion in subverting time beliefs for its political ends. The book points out how this resulted in a facile dichotomy between 'linear' and 'cyclic' time, thereby inaugurating a confusion which, according to the author, has handicapped Western thought ever since, eventually influencing the content of science itself. Thus, this book daringly asserts that physical theory, traditionally regarded as amoral and objective, has depended on cultural beliefs about time. The author points out that time beliefs are again being manipulated today as the credibility of science is being exploited to promote a picture of time and, hence, a pattern of human behaviour which is convenient to the agenda of globalisation of culture. The linkages between modern theology and this 'brave new physics' are traced against the wider context of the so-called 'clash of civilisations', and the attempts to remake the world order. The conclusions point to the need to de-theologise time. The author challenges Einstein's understanding of relativity theory and suggests that a 'tilt in the arrow of time', or a small tendency towards cyclicity, will help repair the prevalent confusion about time. A 'tilt' also enables a physics that permits both memory and creativity, so that purpose and spontaneous growth of order are returned to human life. The book ends with a vision of Man as Creator, surprising God. Extensive research in physics, the history of science, comparative religions, and sociology lend weight to the important and challenging conclusions reached by the author. Written as a rejoinder to Stephen Hawking's A Brief History of Time, this book goes much further and, unlike any previous book, it gives a critical exposition of various world religions-Buddhism, Christianity, Hinduism, Islam, and Jainism-while exploring their intricate links, through time beliefs, to current physics on the one hand, and to global political and economic trends, on the other. This book will appeal to scholars and laypersons equally. It will fascinate anyone who reads it and will teach its readers to question the unquestionable. (shrink)
Time belongs to a handful of categories (like form, symbol, cause) that are genuinely transdisciplinary. Time touches every dimension of our being, every object of our attention - including attention itself. It therefore can belong to no single field of study. Of course, this universalist view of time is not itself universal but rather is a product of the modern age, an age that conceived of itself as the 'new' time. Time has thus gained new (...) importance as a theme of general research with the 'post-modern turn' now manifest in many areas of intellectual endeavor, especially in the humanities and social sciences. 'Chronotypes' are models or patterns through which time assumes practical or conceptual significance. Time is not given but (as the subtitle indicates) fabricated in an ongoing process. Chronotypes are themselves temporal and plural, constantly being made and remade at multiple individual, social, and cultural levels. They interact, they change over time, and they have histories, whose construal is itself an act of temporal construction. This book - an interdisciplinary collaboration of philosophers, historians, literary critics, and anthropologists - examines the ways individuals, societies, and cultures make sense of time by constructing it in diverse patterns. Its title intentionally echoes a concept of narrative theory, Mikhail Bakhtin's 'chronotype', because narrative recurs as a chief form within which we build temporality. The topics treated by these essays range from story-telling to cross-cultural communication, from epistemological debates to concepts of historical periodization, from the construction of life stories to the stratification of social time. (shrink)
My main objective, in this paper, is to present at least a rough sketch of a new model for understanding time. Since many people are quite content with the model that they have, it will be worth while to show why a new model might be desirable, or even necessary. As it happens, looking at the problems involved in the more usual conception of time leads one naturally to look in certain directions for solutions, and such an introduction (...) can therefore explain why the new model looks the way it does. With all this in mind, then, this paper will be broken down into three parts. In the first part, I’ll try to show that no-one has ever experienced time as such. In the second part, I shall argue that one good reason for this is that there is no such thing as time proper. Finally, in the third part, I’ll try to reassemble what’s left of the conception of time after all this demolition, and I’ll offer a positive model (albeit rather vague) of what I prefer to call "temporality". (shrink)
Thomas Sattig develops a comprehensive framework for doing philosophy of time, and offers an original three-dimensionalist picture of the material world. He brings together a variety of different perspectives, linking our ordinary conception of time with the physicist's conception, and linking metaphysical questions about time with questions in the philosophy of language.
Does mere passage of time have causal powers ? Are properties like "being n days past" causally efficient ? A pervasive intuition among metaphysicians seems to be that they don't. Events and/or objects change, and they cause or are caused by other events and/or objects; but one does not see how just the mere passage of time could cause any difference in the world. In this paper, I shall discuss a case where it seems that mere passage of (...)time does have causal powers : Sydney Shoemaker's (1969) possible world where temporal vacua (allegedly) take place. I shall argue that Shoemaker's thought-experiment doesn't really aim at teaching us that there can be time without change, but rather that if such a scenario is plausible at all (as I think it is) it provides us with good reasons to think that mere passage of time can be directly causally efficient. (shrink)
We have, however, as the title of the book would suggest, dealt mainly with space and time, introducing mechanical and electromagnetic considerations only when ...
Unsurpassed among books on space and time in terms of its insights and clarity, this volume by a world-famous mathematician can be appreciated by lay readers as ...
Being in Time is a provocative and accessible essay on the fragmentation of the self as explored in philosophy and literature. This original study is unique in its focus on the literary aspects of philosophical writing and their interactions with philosophical content. It explores the emotional aspects of the human experience of time commonly neglected in philosophical investigation by looking at how narrative creates and treats the experience of the self as fragmented and the past as "lost." Genevieve (...) Lloyd demonstrates the continuities and the contrasts between modern philosophic discussions of the instability of the knowing subject, treatments of the fragmentation of the self in the modern novel, and older philosophical discussions of the unity of consciousness. Combining theoretical discussion with human experience, Being in Time will be important reading to anyone interested in the relationship between philosophy and literature, as well as to more general audience of readers who share Augustine's experience of time as making him a "problem to himself.". (shrink)
This volume provides a comprehensive historico-doctrinal analysis of the transformation of the concept of time in the transition from the medieval debate to ...
