Persistence

In the museum context, curators and conservators often play a role in shaping the nature of contemporary artworks. Before, during and after the acquisition of an art object, curators and conservators engage in dialogue with the artist about how the object should be exhibited and conserved. As a part of this dialogue, the artist may express specifications for the display and conservation of the object, thereby fixing characteristics of the artwork that were previously left open. This process can make a (...) significant difference to the visual appearance of the work, the nature of the audience's experience, and how the work should be interpreted. I present several case studies in which the nature of the artwork has been shaped by such dialogues, and discuss principles for resolving cases in which there is a conflict between instructions specified by the artist and those adopted by the museum. (shrink)

Virtually everyone who has advanced an ontology of art has accepted a constraint to the effect that claims about ontology should cohere with the sort of appreciative claims made about artworks within a mature and reflective version of critical practice. I argue that such a constraint, which I agree is appropriate, rules out a one-size-fits-all ontology of contemporary visual art (and thus of visual art in general). Mature critical practice with respect to contemporary art accords artists a significant degree of (...) stipulative authority regarding the features and boundaries of their works. This results in ontological variation among visual artworks. Any claim to the effect that all works belong to the same ontological category will thus come out false or uninformative. Interesting, substantive claims about ontological status can be made only in relation to specific works; that is, we must consider the ontological status of each contemporary artwork individually. The only general ontological claim that can be made about visual artworks (and also about artworks in other forms) is that they belong to the sort of thing that artists create. But this is not a substantive ontological claim. (shrink)

I argue that in Plato’s Parmenides 141a6–c4, things in time come to be simultaneously older and younger than themselves because a thing’s past and present selves are both real. As a result, whatever temporal relation is predicated of any of these past and present selves is true of the thing in question. Unlike other interpretations, this reading neither assumes that things in time have to replace their parts, nor that time is circular. I conclude that the passage is committed to (...) a conception of the ongoing present and a rejection of presentism and endurantism in favour of a growing universe theory and perdurantism. (shrink)

The grounding problem is related to the puzzle of numerically distinct spatiotemporally coincident objects. Suppose Lumpl –a lump of clay– and Goliath – the statue – are created and later destroyed, simultaneously. They would share all of their physical and spatiotemporal properties and relations. But, Goliath and Lumpl have different modal and sortal properties, which would suggest they are distinct entities, while at the same time entirely co-located. This issue creates a puzzle and raises the question of how two distinct (...) objects can be entirely colocated. Thus, on the one hand, monists (opponents of coincident objects) argue that even though we have given that thing two different names, we should keep in mind that Lumpl and Goliath, for as long as they exist, are entirely similar in terms of their physical and spatiotemporal structures. On the other hand, however, the lump and the statue have different properties. So, pluralists claim that based on Leibniz‘s law, Lumpl and Goliath would be distinct coincident objects. Monists have challenged the possibility and plausibility of the occurrence of coincident objects by the grounding problem: they think that if we accept pluralism, we have to deal with the thorny problem of what grounds the alleged modal differences between Lumpl and Goliath, given that they are similar in all their physical and spatiotemporal aspects. Some monists suspect that pluralists will not be able to find plausible grounds by means of which to explain Lumpl and Goliath‘s modal (and other) differences, and therefore conclude that the grounding problem is a compelling reason to reject pluralism as an untenable approach towards the puzzle of coincident objects. In this thesis, I attempt to show that the grounding problem, contrary to the false advertisement of some monists, does not seriously threaten the possibility and plausibility of the pluralism concerning the existence of numerically distinct spatiotemporally coincident objects. Underlining the plausibility and possibility of the pluralists‘ position, I specify most parts of this thesis as an investigation into how the grounding problem can be solved in support of pluralism. Various solutions to this problem have been proposed by pluralists from different standpoints. In general, most of these significant solutions, based upon general strategies they follow, can be classified into these two categories: the solutions which appeal to the supervenience relations (supervenience-based solutions), and the solutions which take primitivist approaches (primitivist strategies). My research proposes to take up the validity of the aforementioned strategies, and I assess them in relation to the pluralists‘ ability to solve the grounding problem. I argue that both supervenience-based solutions and the some of primitivist strategies – including the modal plenitude, sortal, and identity-based primitivism – are not winning strategies to settle the grounding problem. Considering the point mentioned, I put forward a new account of the primitivist solution to the grounding problem based on the Aristotelian notion of essence which I call ‗essential primitivism‘. I argue that the primitive essences of coincident objects can properly ground the modal and sortal properties making coincident objects distinct. (shrink)

Cities are mysteriously attractive. The more we get used to being citizens of the world, the more we feel the need to identify ourselves with a city. Moreover, this need seems in no way distressed by the fact that the urban landscape around us changes continuously: new buildings rise, new restaurants open, new stores, new parks, new infrastructures… Cities seem to vindicate Heraclitus’s dictum: you cannot step twice into the same river; you cannot walk twice through the same city. But, (...) as with the river, we want and need to say that it is the same city we are walking through every day. It is always different, but numerically self-identical. How is that possible? What sort of mysterious thing is a city? The answer, I submit, is that cities aren’t things. They are processes. Like rivers, cities unfold in time just as they extend in space, by having different temporal parts for each time at which they exist. And walking though one part and then again through another is, literally, walking through the same whole. (shrink)

As a growing area of research, the philosophy of time is increasingly relevant to different areas of philosophy and even other disciplines. This book describes and evaluates the most important debates in philosophy of time, under several subject areas: metaphysics, epistemology, physics, philosophy of language, philosophy of mind, cognitive science, rationality, and art. -/- Questions this book investigates include: Can we know what time really is? Is time possible, especially given modern physics? Must there be time because we cannot think (...) without it? What do we experience of time? How might philosophy of time be relevant to understanding the mind-body relationship or evidence in cognitive science? Can the philosophy of time help us understand biases toward the future and the fear of death? How is time relevant to art – and is art relevant to philosophical debates about time? Finally, what exactly could time travel be? And could time travel satisfy emotions such as nostalgia and regret? -/- Through asking such questions, and showing how they might be best answered, the book demonstrates the importance philosophy of time has in contemporary thought. Each of the book’s 10 chapters begins with a helpful introduction and ends with study questions and an annotated list of further readings. This and a comprehensive bibliography at the end of the book prepare the reader to go further in their study of the philosophy of time. (shrink)

In this paper, I assess the analysis of vagueness of objects in terms of the theory of constitution with respect to the notion of vague identity. Some proponents of the constitution theory see it as an advantage of their account that analysing the spatial and temporal vagueness of objects in terms of the relation of vague constitution avoids commitment to vague identity, which is seen as a controversial notion. I argue that even though the constitution theory may plausibly be applied (...) to the phenomenon of vague boundaries, it fails to account fully for other cases of spatial and temporal vagueness. There are what I call ‘mid-extension’ vagueness cases, in which the tools of the constitution theory applied in the analysis of boundary vagueness are insufficient to avoid commitment to vague identity. (shrink)

Prior left us with a problem which he stated in the following way: ‘Very roughly, it would seem that countable “things” are made or grow from bits of stuff, or from other countable “things”, that are already there. The precise logic of this process hasn’t been worked out yet, and until it has been, it seems likely that any tensed predicate logic can only be provisional in character.’ Although I disagree with much of the philosophy of time underlying Priorean tense (...) logic, the problem of presenting a coherent view of ‘countable things’ and ‘bits of stuff’ within a framework accommodating temporal reference and modal expressions along broadly the lines Prior proposed remains an interesting one. The present paper sketches a general framework within which more specific questions raised by this general issue can be addressed, and makes a number of tentative suggestions without, however, proceeding so far as to settle on and develop a definite logical theory. (shrink)

The life-long correspondence of David K. Lewis, one of the most influential philosophers of the twentieth century, reveals the development, breadth, and depth of his philosophy in its historical context. The first of this two volume collection of letters focuses on his contributions to metaphysics, arguably where he made his greatest impact.

When we think about ethics, we normally focus on a particular sort of agent: the individual person. Some philosophers have argued that we should rethink the limits of what counts as an ethically relevant unit of agency by expanding outward, and claiming that groups of people can have normative reasons for action. In this paper, I explore whether we can go in the other direction. Are there sub‐personal beings who count as agents with their own reasons for action? In particular, (...) might the temporal parts of persons, beings like “me‐in‐my‐twenties,” be thought of as normative agents? This idea, I argue, has deep attractions, and deep, but surmountable, challenges. And if we do accept this idea, I argue, this can indirectly help to support the case for thinking that groups can have reasons for action. (shrink)

Nel nostro universo, qualunque cosa, dalla più piccola particella alla più smisurata galassia, esiste in un qualche tempo e in un qualche luogo. Ma cosa significa esistere in un qualche tempo? Il fenomeno dell’esistenza temporale gioca un ruolo fondamentale nella comprensione dell’universo e di noi stessi quali creature temporali. Eppure è un fenomeno profondamente misterioso. L’esistenza temporale è da intendersi come una relazione? Che legami ha con l’esistenza dell’ontologia? L’esistenza temporale e la localizzazione spaziale sono due fenomeni essenzialmente differenti o (...) due istanze di un’unica relazione? Tutto ciò che esiste nel tempo esiste nel tempo nello stesso modo? Tutto ciò che è nel tempo è anche nello spazio? (shrink)

Stephen Mumford has argued that dispositionalists ought to be endurantists because perdurantism, by breaking down persisting objects in sequences of static discrete existents, is at odds with a powers metaphysics. This has been contested by Neil Williams who offers his own version of ‘powerful’ perdurance where powers function as links between the temporal parts of persisting objects. Weighing up the arguments given by both sides, I show that the profile of ‘powerful’ persistence crucially depends on how one conceptualises the processes (...) involved in the manifestation of powers. As this turns out not to be determined per se by subscribing to some view labelled ‘powers view’, further discussion is needed as to what processes are and to what kind of process theory a powers metaphysics should commit itself in order to be convincing. I defend the claim that dispositionalism is best combined with a version of process ontology that is indeed incompatible with a perdurantist analysis of persistence. However, I argue that this does not imply that dispositionalists ought to be endurantists. (shrink)

This book is about matter. It involves our ordinary concept of matter in so far as this deals with enduring continuants that stand in contrast to the occurrents or processes in which they are involved, and concerns the macroscopic realm of middle-sized objects of the kind familiar to us on the surface of the earth and their participation in medium term processes. The emphasis will be on what science rather than philosophical intuition tells us about the world, and on chemistry (...) rather than the physics that is more usually encountered in philosophical discussions. It is the everyday science of matter characterised by differences of chemical substance that constitutes individuated macroscopic bodies of geological and biological complexity—the continuous matter of macroscopic theory and described by mass terms. -/- The discussion might be characterised as descriptive metaphysics, being content, to paraphrase Strawson’s use of the term, to describe the structure of our scientific thought about the actual world. The method in the central chapters dealing with the nature of matter will be to pursue key steps in the historical development of scientific thought about chemical substance and related concepts with a view to tracing the emergence of a systematic ontological interpretation. Aristotle’s and the Stoics’ discussions of elements and mixtures, based on a continuous view of matter, bear some resemblance to modern, macroscopic conceptions and therefore have some interest as precursors to modern views as well as being of conceptual interest in their own right. Some of the issues they raised are still reflected in modern discussions, despite the considerable increase in complexity of the subject. Other ideas, such as the intimate connection between what modern science distinguishes as substance and phase, maintained their grip on the understanding of matter until the end of the eighteenth century. These are some of the important aspects of the properties of matter that have been neglected by linguistic concerns that have dominated the recent study of mass terms and which the present study seeks to redress. It will be of interest to see how the bounds of possibility are delimited by the laws governing the appropriate use of concepts refined for the purpose of describing the behaviour of matter. But the concern with modality will not stretch to venturing into the realms of metaphysical possibility governed by philosophical speculation about individual essences and underlying natures. -/- Like many contemporary discussions of material objects, this one relies heavily on mereology. Unlike several such discussions, this one adheres to the classical principles of mereology governing the usual dyadic relations of part, overlapping, etc. and the operations of sum, product and difference. These principles apply to the mereological structure of regions of space, intervals of time, processes and quantities of matter. Material objects that gain and lose matter are not understood to gain and lose parts and don’t call for a modification of the classic dyadic mereological relations to triadic relations with the introduction of a third term referring to time. Rather, a distinction is drawn between quantities of matter, which don’t gain or lose parts over time, and individuals, which are typically constituted of different quantities of matter at different times. The proper treatment of the temporal aspect of the features of material objects is a central issue in this book. The topics falling under this heading are addressed by investigating the conditions governing the application of predicates relating time and other entities. Of particular interest here are relations between quantities of matter and times expressing substance kind, phase and mixture. (shrink)

In this paper I will argue against a view that I call foundationalism about persistence-conditions. The core of this view is that composite physical objects have their specific persistence-conditions in virtue of these conditions being fulfilled by the object’s physical constituents at various times. I will provide two arguments – the argument from the possibility of instantaneous objects and the argument from the presence of persistence-conditions – which show that this view is untenable. These arguments will also point towards a (...) more adequate understanding of what it means for an object to have certain persistence-conditions. I will expound this understanding and suggest, on its basis, an unorthodox, hylomorphist account of the persistence-conditions of objects. (shrink)

Although they are continually compositionally reconstituted and reconfigured, organisms nonetheless persist as ontologically unified beings over time – but in virtue of what? A common answer is: in virtue of their continued possession of the capacity for morphological invariance which persists through, and in spite of, their mereological alteration. While we acknowledge that organisms‟ capacity for the “stability of form” – homeostasis - is an important aspect of their diachronic unity, we argue that this capacity is derived from, and grounded (...) in a more primitive one – namely, the homeodynamic capacity for the “specified variation of form”. In introducing a novel type of causal power – a „structural power‟ – we claim that it is the persistence of their dynamic potential to produce a specified series of structurally adaptive morphologies which grounds organisms‟ privileged status as metaphysically “one over many” over time. (shrink)

This chapter discusses the retroactivity problem and how it arises when the idea that events occurring after a person’s life can harm that person is pursued. The common objection to this dilemma is the “no subject” type of response. The retroactivity problem is the result of making several assumptions jointly, many of which are initially plausible but none of which are actually defended. The first of these assumptions is referred to as Worse-Off, which states that an event harms a person (...) only if it makes him worse off than he would have been if the event had not occurred. The second assumption, implied by the first, is referred to as Welfare, which states that an event harms a person only if it makes it the case that his welfare is lower than it would have been if the event had not occurred. (shrink)

The thesis revolves around the following questions. What is time? Is time tensed or tenseless? Do things endure or perdure, i.e. do things persist by being wholly present at many times, or do they persist by having temporal parts? Do causes bring their effects into existence, or are they only correlated with each other? Within a realist approach to metaphysics, the author claims that the tensed view of time, the endurance view of persistence, and the production view of causality naturally (...) combine into what is called the dynamic view of temporal reality, and that the tenseless view of time, the perdurance view of persistence, and the correlation view of causality naturally combine into what is called the static view of temporal reality. The author argues in favour of a dynamic view. During the discussion a number of metaphysical problems are addressed. First, it is argued that the charges that the dynamic view is contradictory, made by J.M.E. McTaggart and David Lewis, are viciously circular. Secondly, it is argued that the static view cannot account for change, and deprives metaphysics of essential means to provide natural explanations to empirical phenomena. Thirdly, the author presents a novel account of the nature of necessary causal production. He suggests that the traditional conception of causes as essentially being external to the effects should be abandoned, and that causal production instead should be explicated in terms of reciprocal interactions between coexistent substances. (shrink)

Frege taught us how to understand one form of predication: an atemporal one. There is also a different, temporal form of predication, which I briefly introduce. Accordingly, there are two fundamentally different approaches to time: a reductive one, aiming to account for time in terms of Frege’s atemporal predication, and a non-reductive one, insisting that the temporal form of predication is sui generis, and that time is to be understood in its terms. I do not directly argue for or against (...) reductionism in this paper. Rather, by evaluating the debates on endurantism–perdurantism, A-theory–B-theory, and presentism–eternalism, I argue that these debates, although aiming to be fundamental, largely boil down to mere quarrels between alternative reductive approaches. We should take notice of this fact and reorient ourselves within the debate on time accordingly: the real issue is whether we should reduce or not. I briefly sketch in what sense endurantism, A-theory, and presentism may be developed on a properly anti-reductionist basis. (shrink)

I am happy to report that serious metaphysics is alive and well in the work of Jonathan Lowe. His recent book The Possibility of Metaphysics: Substance, Identity, and Time is a major contribution to analytical metaphysics; it confirms Lowe’s standing as a leading figure in the field.

Despite changeability of the world, the human mind also ponders on those quantities that remain constant over time. This was the case in ancient times, in the middle ages, and the same applies in modern physics. This paper discusses i.a. Zenon paradoxes, the principle of inertia, and the Emma Noether theorem, ending with the modern, so-called Zeno’s quantum effect. The foot-notes concern the ancient “Achilles” paradox, spot speed, as well as some of the facts taken out of the life-history of (...) Emma Noether, as well as the example of applying her theorem. (shrink)

This is an attempt to sort out what is it that makes many of us uncomfortable with the perdurantist solution to the problem of change. Lewis argues that only perdurantism can reconcile change with persistence over time, while neither presentism nor endurantism can. So, first, I defend the endurantist solution to the problem of change, by arguing that what is relative to time are not properties, but their possession. Second, I explore the anti-perdurantist strategy of arguing that Lewis cannot solve (...) the problem of change, for he cannot account for how some properties are possessed by objects in time. However, I argue that this strategy fails, for if by saying that objects in time can have properties ‘timelessly’ we mean “at no particular time” and “tenselessly”, only objects outside time can have properties in that way; but if we mean “for all the time they exist”, or “essentially”, perdurantists can account for this. Finally, I argue that actually perdurantism cannot solve the problem, but for different reasons: for either it sweeps the problem under the carpet, denying change, and in general subverting our conceptual scheme in a dangerous way, or it becomes equivalent to the endurantist picture that properties are had at times. Nor perdurantism is justified by the Relativity Theory or the B-theory of time, because while endurantism is certainly comfortable with presentism, it need not be committed to it; and even if it were, presentism need not be refuted by the Relativity Theory. (shrink)

This paper investigates the use of theories of mechanics to provide answers to questions in the metaphysics of spatial location and persistence. Investigating spatial location, I find that in classical physics bodies pertend the region of space at which they are exactly located, while a quantum system spans a region at which it is exactly located. Following this analysis, I present a ‘no-go’ result which shows that quantum mechanics restricts the available options for locational persistence theories in an interesting way: (...) it demonstrates that the spatiotemporal path of a persisting thing is discrete in time. This leads to unpalatable consequences for both perdurantists and endurantists. In particular, I argue that Butterfield's ‘anti-pointilliste’ perdurantism is ruled out, and show that endurantists relying on immanent causation run into trouble. I conclude by suggesting the revival of Whitehead's alternative mode of persistence called ‘reiteration.’. (shrink)

According to David Lewis, the argument from temporary intrinsics is ‘the principal and decisive objection against endurance’. I focus on eternalist endurantism, discussing three different ways the eternalist endurantist can try to avoid treating temporary intrinsics as relational. Two of them, generally known as ‘adverbialism’ and ‘SOFism’, are familiar and controversial. I scrutinize them and argue that Lewis’ scepticism about them is well founded. Then, I sketch a further, to some extent new, version of eternalist endurantism, where the key idea (...) is that intrinsic monadic properties had simpliciter by objects are eternal, time-transcendent properties in Fine’s sense, i.e., properties had by objects regardless of time. Eternal properties of an object are ipso facto sempiternal. When something is P at one time and not P at another, it is radically indeterminate whether it is Psimpliciter or not. I argue that an account along these lines is better placed to treat intrinsic monadic properties of changing objects than any other known alternatives insofar as it recognizes that something is Psimpliciter ; it is able to account for x’s being P at a time in terms of something’s being P simpliciter; it has an answer to the question ‘is \simpliciter?’ when x is P at one time and not P at another. I conclude that endurantism is no less at ease with intrinsics than perdurantism is. (shrink)

P.T. Geach has maintained (see, e.g., Geach (1967/1968)) that identity (as well as dissimilarity) is always relative to a general term. According to him, the notion of absolute identity has to be abandoned and replaced by a multiplicity of relative identity relations for which Leibniz's Law - which says that if two objects are identical they have the same properties - does not hold. For Geach relative identity is at least as good as Frege's cardinality thesis which he takes to (...) be strictly connected with relative identity - according to which an ascription of cardinality is always relative to a concept which specifies what, in any particular case, counts as a unit. The idea that there is a close connection between relative identity and Frege's cardinality thesis has been issued again quite recently by Alston and Bennett in (1984). In their opinion, Frege's cardinality thesis is not only similar to relative identity - as Geach maintains - but it implies it. Moreover, they agree with Geach in claiming that a commitment to Frege's cardinality thesis forces a parallel commitment to relative identity. Against Geach, Alston and Bennett we will claim that (Tl): "Frege's cardinality thesis is similar to relative identity" is false and that therefore (T2) "Frege's cardinality thesis implies relative identity" is false as well. (shrink)

André Gallois argues that individuals that undergo fission are on some occasions identical, but on others distinct. Occasional identity however, is metaphysically costly. I argue that we can get all the benefits of occasional identity without the metaphysical costs. On the proposed account, the names of ordinary material objects refer indeterminately to stages that belong to reference classes determined by the context of utterance or temporal adverbs. In addition, temporal markers indicating the perspective from which we count objects and assign (...) properties to them determine how many count and what is true of them. So, as Gallois holds, the truth value of claims about what is true at a time may change over time and, where fission or fusion occur, does change. The current account, however, secures this result without commitment to occasional identity: reference, predication and counting are “occasional”; identity is not. (shrink)

Jonathan Lowe argues that metaphysics should be restored to a central position in philosophy, as the most fundamental form of inquiry, whose findings underpin those of all other disciplines. He portrays metaphysics as charting the possibilities of existence, by identifying the categories of being and the relations between them. He sets out his own original metaphysical system, within which he seeks to answer many of the deepest questions in philosophy. 'a very rich book... deserves to be read carefully by anyone (...) interested in any of the many subjects he discusses.' Katherine Hawley, British Journal of the Philosophy of Science. (shrink)

The concepts of time and identity seem at once unproblematic and frustratingly difficult. Time is an intricate part of our experience -- it would seem that the passage of time is a prerequisite for having any experience at all -- and yet recalcitrant questions about time remain. Is time real? Does time flow? Do past and future moments exist? Philosophers face similarly stubborn questions about identity, particularly about the persistence of identical entities through change. Indeed, questions about the metaphysics of (...) persistence take on many of the complexities inherent in philosophical considerations of time. This volume of original essays brings together these two essentially related concepts in a way not reflected in the available literature, making it required reading for philosophers working in metaphysics and students interested in these topics. The contributors, distinguished authors and rising scholars, first consider the nature of time and then turn to the relation of identity, focusing on the metaphysical connections between the two, with a special emphasis on personal identity. The volume concludes with essays on the metaphysics of death, issues in which time and identity play a significant role. This groundbreaking collection offers both cutting-edge epistemological analysis and historical perspectives on contemporary topics. Contributors:_ _Harriet Baber, Lynne Rudder Baker, Ben Bradley, John W. Carroll, Reinaldo Elugardo, Geoffrey Gorham, Mark Hinchliff, Jenann Ismael, Barbara Levenbook, Andrew Light, Lawrence B. Lombard, Ned Markosian, Harold Noonan, John Perry, Harry S. Silverstein, Matthew H. Slater, Robert J. Stainton, Neil A. Tognazzini The hardcover edition does not include a dust jacket. (shrink)

Samuel Coleridge once noted that very short works of art ease the cognitive burden on poet and reader alike. Limiting the number of lines in a poem, he contends, allows the work 'to acquire, as it were, a Totality' which allows the reader's mind to 'rest satisfied'. Anyone who has strained to grasp the overall pattern of some massive novel, film, or musical work can readily appreciate Coleridge's point. And yet insofar as a film or poem is a temporal work (...) of art, the parts of which are manifested only consecutively, its Totality - be it an ever so small one - is never directly presented to us all at once, and its acquisition, as well as the satisfaction such an acquisition can provide, requires a feat of memory. A film, like a life, may have a brilliant, simple order and a deep and powerful unity, but the presentation and realization of such a totality is something that takes place in time, something that requires an experience of temporal unfolding - something that requires the work of a mind capable of thinking through and recollecting the temporal relations between the parts of the whole. So that while Marianne Olsen Ulrichsen's Come is a perfectly unified gem, a satisfying totality that presents itself to us in just four and a half minutes, we must nonetheless live through its unfolding to discover the coherence of its parts. One of this film's central themes is precisely this kind of process, namely, the constitution of personal identity and togetherness, in and through time and memory. What follows is just one story that may be told about an elusive process that no doubt takes very different forms for different viewers. (shrink)

First published in 1995. Routledge is an imprint of Taylor & Francis, an informa company.

There are famously two main metaphysics of persistence, namely three and four-dimensionalism. Both yield a particular solution to the so called puzzle of change. I argue that typical three-dimensionalist solutions to the puzzle face insurmountable difficulties even in the simplest relativistic setting, that of Minkowski spacetime.

The Importance of Time is a unique work that reveals the central role of the philosophy of time in major areas of philosophy. The first part of the book consists of symposia on two of the most important works in the philosophy of time over the past decade: Michael Tooley's Time, Tense, and Causation and D.H. Mellor's Real Time II. What characterizes these essays, and those that follow, are the interchanges between original papers, with original responses to them by commentators. (...) The wide range of interrelated topics covered in this book is one of its most distinctive features. The book is divided into six parts: I. Book Symposia, II. Temporal Becoming, III. The Phenomenology of Time, IV. God, Time and Foreknowledge, V. Time and Physical Objects, and VI. Time and Causation, and contains 24 essays by leading philosophers in the various areas: Laurie Paul, Quentin Smith, L. Nathan Oaklander, Hugh Mellor, John Perry, William Lane Craig, Brian Leftow, Ned Markosian, Ronald C. Hoy, Michael Tooley, Storrs McCall, David Hunt, Mark Hinchliff, Robin Le Poidevin, Iain Martel and Eric M. Rubenstein. (shrink)

Within the European history of ideas, at least three conceptions of metamorphosis can be distinguished. First, as celebrated in Ovid’s Metamorphoses, there is the vision of an open-ended flux of shapes in all directions, potentially with the ambiguous result of wavering identity. Secondly, at the centre of the synoptic gospels Jesus’s transfiguration is presented as a luminous elevation, rendering his true nature unambiguous. Thirdly, alchemy conceives of metamorphosis as contingent upon a meeting of polarities. The distinction is fit to disclose (...) crucial aspects of works of art, particularly of musical compositions. (shrink)

If persons persist from one time to another they do so, I claim, by perduring, that is by having temporal parts. First I argue that if persons endure, that is persist without having temporal parts, then they have time-dependent properties. Next, I argue that if enduring persons change by having time-dependent properties, then fatalism, or, more accurately, ontological determinism, holds. Hence those of us who consider that ontological determinism is incompatible with our own experience of responsibility have reason to reject (...) the thesis that persons endure. This is significant because endurance might otherwise be thought to cohere better with belief in responsibility than perdurance. (shrink)