Growing Block theorists are committed, roughly, to two theses: that past and present events exist and that future events do not, and that the present is dynamic and constantly changing. These two theses support a picture of the universe as growing, gaining in more and more things and events, as these recede into the past; but the two theses do not specify how the growth of the block is to be understood ; what status the past (...) is supposed to have compared to the present ; and what should be taken to be the fundamental constituents of the spatio-temporal reality. In my paper I argue that getting clearer on these three questions—Q1, Q2, and Q3—will give us very different metaphysical pictures. I distinguish between three variants of the growing block theory: the Fourdimensional Growing Block which goes back to C.D. Broad; the Dead Past Growing Block which is currently defended by Forrest and Forbes; and the Growing Events theory, which draws on some of Whitehead’s ideas on processes. I flesh out each of these variants of the GB view, examine the most urgent challenges to their respective metaphysical pictures, and offer suggestions as to how these challenges can be positively addressed. (shrink)

In this contribution, I explore the possibility of characterizing the emergence of time in causal set theory (CST) in terms of the growing block universe (GBU) metaphysics. I show that although GBU seems to be the most intuitive time metaphysics for CST, it leaves us with a number of interpretation problems, independently of which dynamics we choose to favor for the theory —here I shall consider the Classical Sequential Growth and the Covariant model. Discrete general covariance (...) of the CSG dynamics does not allow us to individuate a single history of the universe (defined by a causal history of different causal sets), thereby making the claim that ‘the past exists’ at best problematic. In addition, because the evolution of the universe in CSG dynamics leads to an outward branching causal tree, it becomes impossible to determine a proper ‘line of becoming’, thereby blurring the presentists’ claim that only the present exists. Similarly, the covariant approach runs into the same, if not even more severe problems, since each configuration of the universe would amount to a set of possible causal sets, thereby making the individuation of a single configuration of the universe —and thus the physical interpretation of the theory— implausible. (shrink)

This monograph is a detailed study, and systematic defence, of the Growing Block Theory of time (GBT), first conceived by C.D. Broad. The book offers a coherent, logically perspicuous and ideologically lean formulation of GBT, defends it against the most notorious objections to be found in the extant philosophical literature, and shows how it can be derived from a more general theory, consistent with relativistic spacetime, on the pre-relativistic assumption of an absolute and total temporal order. (...) -/- The authors devise axiomatizations of GBT and its competitors which, against the backdrop of a shared quantified tense logic, significantly improves the prospects of their comparative assessment. Importantly, neither of these axiomatizations involves commitment to properties of presentness, pastness or futurity. The authors proceed to address, and defuse, a number of objections that have been marshaled against GBT, including the so-called epistemic objection according to which the theory invites skepticism about our temporal location. The challenge posed by relativistic physics is met head-on, by replacing claims about temporal variation by claims about variation across spacetime. -/- The book aims to achieve the greatest possible rigor. The background logic is set out in detail, as are the principles governing the notions of precedence and temporal location. The authors likewise devise a novel spacetime logic suited for the articulation, and comparative assessment, of relativistic theories of time. The book comes with three technical appendices which include soundness and completeness proofs for the systems corresponding to GBT and its competitors, in both their pre-relativistic and relativistic forms. -/- The book is primarily directed at researchers and graduate students working on the philosophy of time or temporal logic, but is of interest to metaphysicians and philosophical logicians more generally. (shrink)

McTaggart's argument against the reality of the A series poses a serious problem for the moving-now block theory of time. A defender of MNBT can respond along lines suggested by Broad: by denying that we should understand ‘e was present’ as saying that e is present at some past moment t. There is, however, a serious—plausibly defeating—objection to this type of response: it implicitly denies a non-negotiable platitude about time. As a result, MNBT is not tenable. Growing (...) block theories are also defeated by a similar objection. (shrink)

Whatever its ultimate philosophical merits, it is often thought that the growing block theory presents an intuitive picture of reality that accords well with our pre-reflective or folk view of time, and of the past, present, and future. This is partly motivated by the idea that we find it intuitive that, in some sense, the future is open and the past closed, and that the growing block theory is particularly well suited to accommodate this (...) being so. In this paper, we empirically investigate three claims. First, that people's intuitive or pre-reflective sense that the future is open is at least partly captured by there being truth-gaps for future contingents: what we call alethic openness. Second, that people, perhaps tacitly, believe that the fact that the future is alethically open is a reason to endorse the growing block theory; and third, that part of what explains why people tend to naively represent our world as a growing block is that they represent the future as alethically open. We found evidence in support of the first two claims. We consider the implications of these findings for several debates in the philosophy of time. (shrink)

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

Fabrice Correia and Sven Rosenkranz’s book Nothing to Come: a Defence of the Growing Block Theory of Time offers an incredibly rich and skillful defense of the growing block theory (GBT), a view of time that arguably has much intuitive appeal, and which has been under attack from many sides. Nonetheless, I have to report that the book’s tense-logical course of treatment has not worked for me; I still struggle with making sense of the (...) GBT. This article begins by drawing out some implications of the book’s set up. First, the notion of existence in play here is not interpretable on the basis of ordinary usage. Second, it would be a mistake to take the tense-logical framework to have any metaphysical significance. I then articulate two main worries about their version of the GBT. The first worry takes a familiar shape: it is just hard to see how their view is dynamic in the relevant sense. The second worry is that the topic seems to have been changed. C&R’s logical system helps itself to key notions whose intended interpretation includes a solution to every metaphysical puzzle about the GBT, so that these puzzles are not so much addressed as enshrined in a formal system. That is, their view seems to answer the question of how language should behave, if the GBT were (somehow) true. (shrink)

The causal set programme towards a quantum theory of gravity is situated vis-à-vis the long-standing debate between eternalism (block theory) and past-presentism or possibilism (growing block theory) in the philosophy of time. It is argued that despite 'appearances' and declarations to the contrary, the programme does not side with growing block theorists when it comes to harboring a robust notion of Becoming - at least, not more than familiar relativistic theories on continuous (...) spacetime manifolds. The problem stems mainly from the postulate of discrete general covariance - a requirement imposed upon the only fully worked out kind of dynamics for causal sets to date, a dynamics of a classical stochastic process. (shrink)

I present a ‘stage-theoretical’ interpretation of the supervaluationist semantics for the growing-block theory of time according to which the ‘nodes’ on the branching tree of historical possibilities are taken to be possible stages of the growth of the growing-block. As I will argue, the resulting interpretation (i) is very intuitive, (ii) can easily ward off an objection to supervaluationist treatments of the growing-block theory presented by Fabrice Correia and Sven Rosenkranz, and (iii) (...) is also not saddled by the problems affecting the supervaluationist version of the growing-block theory defended by R. A. Briggs and Graeme A. Forbes. (shrink)

To be fair to Robinson, it is worth mentioning that he does offer a number of qualifications to his thesis. He tries to avoid excessive determinism and at one point suggests:A satisfactory account should not imply an evolutionary notion and should leave open the possibility of historic discontinuities and of contingencies that generate alternative pathways of development, including alternative futures.In other words, maybe this embryonic TNS will never progress beyond its current stage or perhaps it will continue to grow but (...) it will never become a real state. But the main thrust of Robinson’s account is strongly deterministic. In fact, he does not consider a single factor that might impede the unity of the global bourgoisie or derail transnational state formation.In a sense, Robinson’s mistake is that he has tried to derive a theoretical solution to a concrete problem that global capitalism has not yet solved in practice. While it might well be a logical step for capitalist elites to create a Transnational State, it is always risky to attribute too much rationality to an order that is notorious for its contradictions. (shrink)

There is a feeling of dissatisfaction with the traditional way of defining the A-theories of time. One reason is that these definitions rest on an ontological question—‘Do the future and the past exist?’—to which no non-speculative answer can be provided. Another reason is that these definitions fail to distinguish between various A-theories of time at all times and, therefore, cannot be regarded as essential to them. In the present paper, I make a fresh start in the debate, by introducing two (...) questions whose specific answers allow one to get a comprehensive categorization of the A-theories of time. This alternative way of defining the A-theories of time addresses the two above-mentioned issues and reveals the metaphysical singularity of underrated theories, such as the growing block theory. (shrink)

Chris Heathwood requires the sentence 'Caesar was conscious when he crossed the Rubicon' to be made true in much the same way as 'Caesar was wet when he crossed the Rubicon'. Yet because the Growing Block theorist is committed to the zombiedom of the past,the former is not made true by past objects, although the latter is. Heathwood demands a uniform account of the grounding of truths and he will be given a uniform account. But we should exercise (...) care in deciding just what sort of uniformity is appropriate. As Russell so famously pointed out a century ago the subject/predicate form of a sentence can be misleading. Likewise although the two sentences 'Caesar is conscious' and 'Caesar is wet' have similar subject/predicate forms they have, I say, different kinds of truth-conditions and hence their past tense transformations also have different kinds of truth-conditions. The uniformity I endorse is that in both cases the grounds for the past tense transformation are the same as the grounds the present tense versions used to have when they were true. (shrink)

The growing block view of time holds that the past and present are real whilst the future is unreal; as future events become present and real, they are added on to the growing block of reality. Surprisingly, given the recent interest in this view, there is very little literature on its origins. This paper explores those origins, and advances two theses. First, I show that although C. D. Broad’s Scientific Thought provides the first defence of the (...) growing block theory, the theory receives its first articulation in Samuel Alexander’s Space, Time, and Deity. Further, Alexander’s account of deity inclines towards the growing block view. Second, I argue that Broad shifted towards the growing block theory as a result of his newfound conviction that time has a direction. By way of tying these theses together, I argue that Broad’s views on the direction of time – and possibly even his growing block theory – are sourced in Alexander. (shrink)

The Growing Block Theory of time asserts that temporal reality encompasses all present and past things. The world grows as things come to be present. When something becomes past it does not cease to be, it simply moves away from the growing edge of reality. Thus past things are just like present ones, except not present. But if past things are just as real as present ones, and qualitatively just like them, how can I tell if (...) what is happening is present and not past? It seems everything would look the same to me whether I was past or present. And so I don’t know that I am present. To avoid this intolerable result, I argue on behalf of the Growing Block Theorist that the present does not look the same as the past. Experiences exemplify the property of presentness when they are present, and I can be directly acquainted with that fact. My direct acquaintance enables me to be justified in believing my experiences are present and to know the same. I develop this view and conclude by responding to objections. (shrink)

In this paper we critically review Correia’s and Rosenkranz’s Nothing to Come. A Defence of the Growing Block Theory of Time, published by Springer in 2018. By taking into account the essential reliance of the book on tense logic, we bring out the existence of a conflict between their logical axioms, that presuppose truth bivalence even for statements concerning future contingents, and the principle of groundedness that they also advocate. According to this principle, a proposition Q is (...) now groundedly true as long as sometimes in the future it will be the case that there exists something that makes Q true. However, if the events that occur in 2060 do not exist unrestrictedly (for us, here in 2021), what, in reality, can possibly ground the truth (or falsity) of Q? In the second part of the paper, we concentrate on some conceptual difficulties raised by their brilliant attempt to adapt the growing block view of reality to a relativistic setting, based on what they call bow-tie presentism, according to which for each spacetime point s only s plus the spacelike-related region with respect to s exists. By extending temporal logic into a relativity-friendly spatiotemporal logic, we conclude by noting that Correia and Rosenkranz’s Nothing to Come makes very important strides in showing that there are technical ways to develop the growing block of reality into an ontology that coheres with relativity theories perfectly well, while retaining most of the distinctive content of classical growing block theory. (shrink)

I argue that the growing-block theory of time and truthmaker maximalism jointly entail that some truthmakers undergo mereological change as time passes. Central to my argument is a grounding-based account of what I call the “purely incremental” nature of the growing-block theory of time. As I will show, the argument presented in this paper suggests that growing-block theorists endorsing truthmaker maximalism have reasons to take composition to be restricted and the “block” (...) of reality to literally grow as time goes by. (shrink)

In this paper, we clarify what proponents of the Growing Block Theory (GBT) should and what they should not say, and what they consistently can say. Once all the central tenets of the view are on the table, we address both David Braddon-Mitchell’s and Trenton Merricks’ recent eulogies for GBT, based on what is representative of a certain type of argument meant to show that GBT is internally incoherent. We argue that this type of argument proceeds from (...) a mistaken assumption about GBT’s core, viz. that GBT works with an untensed notion of what, in the metaphysically most fundamental sense, there is. We conclude that this type of argument accordingly misfires and that for all we know, we might be living on the brink of reality. (shrink)

The Dead Past Growing Block theory of time—DPGB-theory—is the metaphysical view that the past and the present tenselessly exist, whereas the future does not, and that only the present hosts mentality, whereas the past lacks it and is, in this sense, dead. One main reason in favour of this view is that it is immune to the now-now objection or epistemic objection (which aims at undermining the certainty, within an A-theoretical universe, of being currently experiencing the (...) objective present time). In this paper, I examine the additional arguments offered by P. Forrest and G. A. Forbes to back the DPGB-theory and show that they do not work. I also examine a proposal to rescue the DPGB-theory suggested by an anonymous reviewer for this journal and argue that it does not work either. Moreover, in line with D. Braddon-Mitchell and against Forbes, I argue that the DPGB-theory is indeed committed to the existence of zombies in the past. Being ad hoc and burdened by a very odd and counterintuitive ontological commitment, the DPGB-theory turns out to be rather unpalatable. (shrink)

This paper investigates ‘exterminous hypertime’, a model of time travel in which time travellers can change the past in virtue of there being two dimensions of time. This paper has three parts. Part one discusses the laws which might govern the connection between different ‘hypertimes’, showing that there are no problems with overdetermination. Part two examines a set of laws that mean changes to history take a period of hypertime to propagate through to the present. Those laws are of interest (...) because: (i) at such worlds, a particular problem for non-Ludovician time travel (‘the multiple time travellers’ problem) is avoided; and (ii) they allow us to make sense of certain fictional narratives. Part three discusses how to understand expectations and rational decision making in a world with two dimensions of time. I end with an appendix discussing how the different theories in the metaphysics of time (e.g., tensed/tenseless theories and presentism/eternalism/growing block theory) marry up with exterminous hypertime. (shrink)

Since J. McTaggart’s paper on “The Unreality of Time” the opposition of “A-theorists” and “B-theorists” establishes a focal point in the modern debate on the metaphysics of time: While “A-theorists” claim the existence of an objective present, moving along time positions, “B-theorists” maintain that time is just a set of ontologically equivalent coordinates, “now” being merely the indexical of the speaker’s position. Contemporary attempts to resolve the issue by resorting to the analysis of language or to the theory of (...) science seem to deliver no definite results. By contrast, practical and existential aspects of the two models promise to be more univocal guides in deciding between them. Particularly, C. D. Broad’s hybrid conception of a “growing block theory” attains special attractiveness in this regard. (shrink)

In Nothing to Come, Fabrice Correia and Sven Rosenkranz provide a sophisticated, compelling, and thoroughly defended account of the growing block theory. This note critically evaluates two aspects of this account. First, it evaluates Correia and Rosenkranz’s attempt at providing a grounding principle for future truths and argues that this principle fails to make progress in explaining why future truths are true. Second, it evaluates Correia and Rosenkranz’s construal of the open future arguing that the asymmetry in (...) openness with respect to the past and future is not plausibly understood in terms of determinism and indeterminism, and in the final section, it evaluates their claim that a growing block theorist is able to maintain that the future is open in a stronger sense than the block theorist. (shrink)

This piece is a contribution to a book symposium on Fabrice Correia and Sven Rosenkranz's _Nothing to Come: A Defense of the Growing Block Theory of Time_. I start by considering one of the main objections that has been raised against the Growing Block Theory, namely, the Epistemic Objection, together with Correia and Rosenkranz's response to that objection. This leads to a question about whether Correia and Rosenkranz’s view is a Four-Dimensionalist version of the (...) Growing Block Theory or a Three-Dimensionalist version of the theory. I argue that there are three possible ways Correia and Rosenkranz might respond to this question, and I raise several worries for each of those ways. Then I offer some free advice about how I think Correia and Rosenkranz ought to respond to the question. (shrink)

ABSTRACTThe ability of providing an adequate supervenience base for tensed truths may seem to be one of the main theoretical advantages of both the growing-block and the moving-spotlight theory of time over presentism. However, in this paper I will argue that some propositions appear to be as problematic for growing-block theorists as past-directed propositions are for presentists, namely propositions stating that nothing will be the case in the future. Furthermore, I will show that the moving-spotlight (...) theory can adequately address all the main supervenience challenges that can be levelled against A-theories of time. I will, thus, conclude that, at least as far as the supervenience principle is concerned, the moving-spotlight theory should be preferred over both presentism and the growing-block theory. (shrink)

In this paper I argue that the growing block theory of time has rather surprising, and hitherto unexplored, explanatory benefits when it comes to certain enduring philosophical puzzles concerning death. In particular, I claim the growing block theorist has readily available and convincing answers to the following questions: Why is it an evil to be dead but not an evil to be not yet born? How can death be an evil for the dead if they (...) no longer exist to suffer it? When is death an evil for the one who dies? The ability to give such answers is a significant, but by no means decisive, advantage for the growing block view of time. (shrink)

While sharing some features in common with presentist accounts of time, Hegel’s theory of time fundamentally offers an alternative to standard A-Theories, B-Theories, and C-Theories of time. While compatible with Kantian ideality of time on the one hand and spacetime in the theory of general relativity on the other, Hegel’s theory of time reaches beyond both a transcendental form of sensibility on the one hand and a paradigm for material motion in physics, on the other. Further, while (...) Hegel’s theory of time provides reason to reject such theories of time as the Moving Spotlight, Growing and Shrinking Block, and a range of others, my interest here is in making comprehensible Hegel’s theory of time itself. I will argue that according to Hegel’s theory, the past and the future exist as constitutive of the now, and the now is not separable from space, but rather is itself spatial becoming. Stemming from his underlying logic of actuality and becoming, Hegel espouses the view that history (the past) and future possibility are present and constitutive of the “now.” Understanding his theory of time will also help shed some light on a systematic feature found across his philosophy of nature and mind. Additionally, while his theory presents an elegant notion of time within his philosophy, it also offers an intuitive and productive solution for a traditional identity problem of concrete particulars across time and intervenes in contemporary philosophy of time. (shrink)

This paper aims to support the claim that analytic metaphysics should be more cautious regarding the constraints that truthmaking considerations impose on metaphysical theories. To this end, I reply to Briggs and Forbes (2017), whoargue that certain truthmaking commitments are incurred by a Humean metaphysics and by the Growing-Block theory. First, I argue that Humean Supervenience does not need to endorse a standard version of truthmaker maximalism. This undermines Briggs and Forbes’s conclusion that Humean Supervenience and the (...) Growing-Block theory are incompatible. Second, I argue that the Growing-Block theory does not commit us to any weaker version of truthmaker maximalism, which also undermines Briggs and Forbes’s conclusion. Finally, I point out other reasons to think that any version of truthmaker maximalism is disputable, undermining a fortiori Briggs and Forbes’s conclusion and supporting the moral that metaphysical theories—or at least Humean Supervenience, the Growing-Block theory, and presentism—are little constrained by truthmaking commitments. (shrink)

A recently published hypothesis on the nature of time by physicist Richard A. Muller seeks to provide an objective account of the present moment and the ‘flow’ of time. Muller also claims that his hypothesis makes testable predictions. It is shown that the predictions offered cannot be used to test Muller’s hypothesis, that the hypothesis does not rate scientific status, has a number of questionable metaphysical premises, and is merely a re-fashioning of the Growing Block theory of (...) time. (shrink)

What is the proper punishment from the perspective of the libertarian philosophy? More specifically, in what way, if at all, may a thief benefit from his robbery? The present essay attempts to wrestle with these challenging questions.

Why does aristotle say that the common sensibles are susceptible to error while the specific sensibles are not? various solutions of this problem are discussed and finally it is concluded that aristotle's meaning here is teleological. The specific senses were fashioned by nature to perceive the specific sensibles but not the common sensibles and so error sometimes (often) creeps in. The common sense is really not a sense faculty as the eye, The ear etc.

Libertarian punishment theory was initially articulated by Murray N. Rothbard and Walter E. Block. It was broken down into four separate stages. To a great degree, this theory was accepted by Eduardo Blasco and Davie Marcos. However, they maintain it is in need of some slight adjustments and improvements, mainly dealing with the interest rate. The present paper claims their suggestion while valid, is unnecessary, since this theory already incorporates that element, at least implicitly.

Comment: This translation contains a correction of an argument in the original English edition, a correction that was subsequently made in the 1999 English Paperback edition, The correction is described below in the final paragraph. Differences in language can seriously restrict one's access to, and knowledge of, the philosophical work that's being done in other countries, and before the publication in 1997 of my book Time, Tense, and Causation, I was not aware of the depth of interest, in Italy, in (...) analytical philosophy in general, and metaphysics in particular. Since that time, however, I've had the opportunity of talking to, and corresponding with, Italian philosophers who are currently working very intensely on problems in the philosophy of time. I very much enjoyed those discussions, and so I'm very pleased indeed that my book has now been translated into Italian. -/- The introduction to the book will provide readers with quite a detailed overview of my approach to the philosophy of time, and of the main theses that I am defending. But perhaps it will be helpful here if I try to sketch, very briefly, the big picture. -/- The central issue in the philosophy of time concerns the choice between tensed and tenseless accounts of the nature of time – or, as I prefer to express it, between dynamic and static conceptions of reality. According to tensed (or dynamic) accounts, there are significant ontological differences between the past, the present, and the future – either because the world contains intrinsic tensed properties of passiveness, presentness, and futurity, or else because the past, the present, and the future are not all equally real. In contrast, according to tenseless (or static) views of the nature of time, there are no intrinsic tensed properties, and the past, the present, and the future are all equally real. In this book, I defend a dynamic view of time dash specifically, one according to which, while the past and the present are now real, the future is not. This view has, of course, a very long history, with a version of it having been defended by Aristotle in his famous discussion of the sea battle tomorrow, in which he argued that, although it is now true – indeed necessarily so – that either there will be a sea battle tomorrow or there will not be one, it is not now true that there will be a sea battle tomorrow, and not now true that there will not be one. Only when tomorrow comes will the world contain states of affairs that make one of these propositions true, and the other false. -/- But while this general view of the nature of time has a very long and distinguished history – and also seems, intuitively, quite appealing – it has become clear, especially in this century, that it is exposed to very strong objections – objections moreover, that come not merely from philosophy, but also from contemporary physics, and especially from Einstein's special theory of relativity. One of the main challenges accordingly, for any defense of a tensed or dynamic view of time, is to show that those objections can be answered. -/- In grappling with those objections, however, one thing that emerged very clearly was that some theses that defenders of tensed approaches to time have traditionally viewed as absolutely essential must be abandoned as unsound. The result is that. I was led to a view of the nature of time that is, in many respects, intermediate between tenseless views of time and traditional tensed approaches. In particular, advocates of traditional tensed views almost always maintain that the simplest temporal facts are themselves inherently tensed: they consist of facts such as, for example, that is certain apple is now red. But I maintain that, on the contrary, the simplest temporal facts, rather than being intrinsically tensed, are facts to the effect, for example, that a certain apple is now red at time t. On this fundamental issue, then, I agree with those who accept a tenseless or static view of time, since they too hold that the simplest tensed facts ¬– and indeed all tensed facts – are not tensed facts. How, then, does my approach to the nature time differ from a tenseless or static approach? The answer is that I also maintain that, although basic tensed facts are not inherently tensed, the world is nevertheless a dynamic one, since every present moment is a point at which things come into existence. Events, therefore, are not merely actual or nonactual – as is maintained by advocates of tenseless approaches to time. Rather an event is actual as of some time, and not actual as of other times. One needs, therefore, a temporally indexed notion of actuality, according to which an event is not actual until the time at which it occurs, and given that notion, one can explain, in a straightforward fashion, what it is for events to lie in the past, the present, and the future, and in the way that entails that the past and the present are real, but the future is not. -/- One task, as I have said, is to show that the many objections that have been advanced against dynamic conceptions of the world dash by philosophers – such as McTaggart, Quine, Smart, Putnam, and Mellor – can be answered. But even if, as I claim, this can be done, one is still left, of course, with the question of what positive reason there is, if any, for accepting a tensed or dynamic view of the world. -/- The argument that I develop in response to this question centers upon the concept of causation, and here I argue, first, that there are decisive objections to reductionist approaches to causation; secondly, that it is possible to set out a very plausible realistic account of the nature of causation; and, thirdly, that the crucial postulates that are involved in that account can only be satisfied in a dynamic world – indeed only in a dynamic world in which the past and the present are real, but the future is not. -/- This way of defending the view that our world is a dynamic one also has implications for some other issues – in particular, issues connected with the subtle and very difficult metaphysical question of the relation between time and causation. Thus, after setting out the above argument, I attempt to show that if causation can exist only in a dynamic world, then one can both demonstrate that backward causation is logically impossible and defend the view that the direction of time is to be defined in terms of the direction of causation, rather than vice versa. -/- Finally, a comment on the text. It involves one major change from the original English edition – namely in sections 4. 6.2 and 4.7. The change in those sections involves the crucial part in my argument both for the claim that our world is one where the past and present are real, but the future is not, and for the claim that backward causation is logically impossible. It was pointed out to me by Kenji Murota, a graduate student of philosophy at Keio University, that there was a problem in my original formulation of that argument. I'm grateful to him for his incisive criticism, and I'm pleased that I've had the opportunity of correcting that argument in the present edition. (shrink)

The debate over gun control has taken place in complete isolation from geographical considerations. It focuses on, for the most part, whether legalization would bring about more or fewer accidental deaths, and murders of innocents, than prohibition, and in the USA on the precise meaning of the second amendment to the Constitution. However, these deliberations, argue the authors of the present paper, can be enriched by incorporating into them a spatial context. When this is done, and they are combined with (...) the property rights philosophy of libertarianism, some very different conclusions are drawn. (shrink)

... PHILOSOPHY OF PSYCHOLOGY is the study of conceptual issues in psychology. For the most part, these issues fall equally well in psychology as in..

According to Conceptual Role Semantics, the meaning of a representation is the role of that representation in the cognitive life of the agent, e.g. in perception, thought and decision-making. It is an extension of the well known "use" theory of meaning, according to which the meaning of a word is its use in communication and more generally, in social interaction. CRS supplements external use by including the role of a symbol inside a computer or a brain. The uses appealed (...) to are not just actual, but also counterfactual: not only what effects a thought does have, but what effects it would have had if stimuli or other states had differed. The view has arisen separately in philosophy and in cognitive science. The source of the view is Wittgenstein and Sellars, but the source in contemporary philosophy is a series of papers by Harman and Field. Other proponents in philosophy have included Block, Horwich, Loar, McGinn and Peacocke. In cognitive science, they include Woods and Miller and Johnson-Laird. (shrink)

This volume of Ned Block's writings collects his papers on consciousness, functionalism, and representationism. A number of these papers treat the significance of the multiple realizability of mental states for the mind-body problem -- a theme that has concerned Block since the 1960s. One paper on this topic considers the upshot for the mind-body problem of the possibility of a robot that is functionally like us but physically different -- as is Commander Data of _Star Trek's_ second generation. (...) The papers on consciousness treat such conceptual issues as phenomenal versus access consciousness, Dennett's theory of consciousness, and the function of consciousness, as well as such empirical matters as "How Not to Find the Neural Correlate of Consciousness," and an argument that there are distinct neural correlates for access consciousness and phenomenal consciousness. Turning to the mind-body problem, Block defends physicalism against Max Black's argument concerning phenomenal modes of presentation. The papers on representationism consider "mental paint" as well as the "Inverted Earth" thought experiment -- a world in which colors are reversed but there is a compensating reversal in the words that are used to describe them. _Consciousness, Function, and Representation_, bringing together papers that have appeared primarily in journals and conference proceedings, can be regarded as Block's most complete statement of his positions on consciousness. (shrink)

Necessity and sufficiency are the building blocks of all successful explanations. Yet despite their importance, these notions have been conceptually underdeveloped and inconsistently applied in explainable artificial intelligence, a fast-growing research area that is so far lacking in firm theoretical foundations. In this article, an expanded version of a paper originally presented at the 37th Conference on Uncertainty in Artificial Intelligence, we attempt to fill this gap. Building on work in logic, probability, and causality, we establish the central role (...) of necessity and sufficiency in XAI, unifying seemingly disparate methods in a single formal framework. We propose a novel formulation of these concepts, and demonstrate its advantages over leading alternatives. We present a sound and complete algorithm for computing explanatory factors with respect to a given context and set of agentive preferences, allowing users to identify necessary and sufficient conditions for desired outcomes at minimal cost. Experiments on real and simulated data confirm our method’s competitive performance against state of the art XAI tools on a diverse array of tasks. (shrink)

Human behavior and thought often exhibit a familiar pattern of within group similarity and between group difference. Many of these patterns are attributed to cultural differences. For much of the history of its investigation into behavior and thought, however, cognitive science has been disproportionately focused on uncovering and explaining the more universal features of human minds—or the universal features of minds in general. -/- This entry charts out the ways in which this has changed over recent decades. It sketches the (...) motivation behind the cultural turn in cognitive science, and situates some of its central findings with respect to the questions that animate it and the debates that it has inspired. Woven throughout the entry are examples of how the cognitive science of culture, and especially its elevated concern with different forms of diversity and variation, continues to influence and be influenced by philosophers. -/- One cluster of philosophical work falls within the traditional subject matter of philosophy of science, in this case of the cognitive and social sciences. Philosophers have analyzed and assessed the methods and evidence central to the scientific study of cognition and culture, and have offered conceptual scrutiny, clarification, and synthesis. Research in a second vein sees philosophers themselves contributing more directly to cognitive scientific projects, (co)constructing theories, helping build computational models, even gathering empirical data. A third kind of work is naturalistic philosophy or philosophy of nature, wherein philosophers seek to use results from the cognitive science of culture to inform or transform debates over long-standing philosophical questions, including questions about the nature of philosophy and philosophical methodology itself. (shrink)

Maladapting Minds discusses a number of reasons why philosophers of psychiatry should take an interest in evolutionary explanations of mental disorders and, more generally, in evolutionary thinking. First of all, there is the nascent field of evolutionary psychiatry. Unlike other psychiatrists, evolutionary psychiatrists engage with ultimate, rather than proximate, questions about mental illnesses. Being a young and youthful new discipline, evolutionary psychiatry allows for a nice case study in the philosophy of science. Secondly, philosophers of psychiatry have engaged with evolutionary (...) theory because evolutionary considerations are often said to play a role in defining the concept of mental disorder. The basic question here is: Can the concept of mental disorder be given an objective definition, or is it rather a normative concept? Thirdly and finally, evolutionary thinking in psychiatry has often been a source of inspiration for a philosophical view on human nature. Thus evolutionary psychiatrists have suggested, for example, that man's vulnerability to mental disorders may well be one of the defining features of our species. -/- Written by leading authors in philosophy, psychiatry, biology and psychology, this volume illustrates that many debates in contemporary philosophy of psychiatry are profoundly influenced by evolutionary approaches to mental disorders. Conversely, it also reveals how philosophers can help contribute to the burgeoning field of evolutionary psychiatry. It is important reading for a wide range of readers interested in mental health care and philosophy. (shrink)

Usury, charging a higher interest rate than thought by some to be “fair,” has had and still has, a bad press. Historically, it was heavily punished. It was then, and all too often is now, thought to be exploitative. Yet, as even the most economically unsophisticated must realize, both sides of these transactions must necessarily gain at least in the ex ante sense, otherwise one or the other would refuse to enter into the deal in the first place. The present (...) paper is an attempt to justify the practice of charging interest on loans, at any rate agreeable to both borrowers and lenders. (shrink)

According to Conceptual Role Semantics ("CRS"), the meaning of a representation is the role of that representation in the cognitive life of the agent, e.g. in perception, thought and decision-making. It is an extension of the well known "use" theory of meaning, according to which the meaning of a word is its use in communication and more generally, in social interaction. CRS supplements external use by including the role of a symbol inside a computer or a brain. The uses (...) appealed to are not just actual, but also counterfactual: not only what effects a thought does have, but what effects it would have had if stimuli or other states had differed. The view has arisen separately in philosophy (where it is sometimes called "inferential," or "functional" role semantics) and in cognitive science (where it is sometimes called "procedural semantics"). The source of the view is Wittgenstein (1953) and Sellars, but the source in contemporary philosophy is a series of papers by Harman (see his 1987) and Field (1977). Other proponents in philosophy have included Block, Horwich, Loar, McGinn and Peacocke (1992). In cognitive science, they include Woods (1981) and Miller and Johnson-Laird (1976). (See references in Block, 1987.). (shrink)

Dehaene and Naccache, Dennett and Jack and Shallice “see convergence coming from many different quarters on a version of the neuronal global workspace model†(Dennett, p. 1). (Boldface references are to papers in this volume.) On the contrary, even within this volume, there are commitments to very different perspectives on consciousness. And these differing perspectives are based on tacit differences in philosophical starting places that should be made explicit.  Indeed, it is not clear that different uses of “consciousness†and (...) “awareness†in this volume can be taken to refer to the same phenomenon. More specifically, I think there are three different concepts of consciousness in play in this issue. The global workspace model makes much more sense on one of these than on the others. (shrink)

Mental (or semantic) holism is the doctrine that the identity of a belief content (or the meaning of a sentence that expresses it) is determined by its place in the web of beliefs or sentences comprising a whole theory or group of theories. It can be contrasted with two other views: atomism and molecularism. Molecularism characterizes meaning and content in terms of relatively small parts of the web in a way that allows many different theories to share those parts. (...) For example, the meaning of 'chase' might be said by a molecularist to be try to catch. Atomism characterizes meaning and content in terms of none of the web; it says that sentences and beliefs have meaning or content independently of their relations to other sentences or beliefs. One major motivation for holism has come from reflections on the natures of confirmation and learning. As Quine (1953) observed, claims about the world are confirmed not individually, but only in conjunction with theories of which they are a part. And typically, one cannot come to understand scientific claims without understanding a significant chunk of the theory of which they are a part. For example, in learning the Newtonian concepts of 'force', 'mass', kinetic energy' and 'momentum', one doesn't learn any definitions of these terms in terms that are understood beforehand, for there are no such definitions. Rather, these theoretical terms were all learned together in conjunction with procedures for solving problems. The major problem with holism is that it threatens to make generalization in psychology virtually impossible. If the content of any state depends on all others, it would be extremely unlikely that any two believers would ever share a state with the same content. Moreover, holism would appear to conflict with our ordinary conception of reasoning. What sentences one accepts influence what one infers. if i accept a sentence and then later reject it, i thereby change the inferential role of that sentence, so the meaning of what i accept wouldn't be the same as what i later reject. but then it would be difficult to understand on this view how one could rationally --or even irrationally!-- change one's mind. and agreement and translation are also problematic for much the same reason. holists have responded (1) by proposing that we should think not in terms of "same/different" meaning but in terms of a gradient of similarity of meaning, (2) by proposing "two factor" theories or (3) by simply accepting the consequence that there is no real difference between changing meanings and changing beliefs. (shrink)

Representationism 1, as I use the term, says that the phenomenal character of an experience just is its representational content, where that representational content can itself be understood and characterized without appeal to phenomenal character. Representationists seem to have a harder time handling pain than visual experience. I will argue that Michael Tye's heroic attempt at a representationist theory of pain, although ingenious and enlightening, does not adequately come to terms with the root of this difference.

The Growing Block Theory of time says that the metaphysical openness of the future should be understood in terms of there not being any future objects or events. But in a series of works, Ross Cameron, Elizabeth Barnes, and Robbie Williams have developed a competing view that understands metaphysical openness in terms of it being indeterminate whether there exist future objects or events. I argue that the three reasons they give for preferring their account are not compelling. (...) And since the notion of “indeterminate existence” suffers conceptual problems, the Growing Block is the preferable view. (shrink)

This essay addresses two growing edges of the just war tradition. First, theorists have been accused of focusing narrowly on justifying war and governing its conduct, neglecting wider considerations that encompass justice during the years prior to and after war. Second, calling a war "just" allegedly makes it seem "good" so that it is easier to fight a war and to bend or set aside the rules. Based on "imperfect justice," we argue for a "justified" war theory, taking (...) all criteria and categories seriously, including jus ante bellum and jus post bellum. (shrink)

According to Conceptual Role Semantics ("CRS"), the meaning of a representation is the role of that representation in the cognitive life of the agent, e.g. in perception, thought and decision-making. It is an extension of the well known "use" theory of meaning, according to which the meaning of a word is its use in communication and more generally, in social interaction. CRS supplements external use by including the role of a symbol inside a computer or a brain. The uses (...) appealed to are not just actual, but also counterfactual: not only what effects a thought does have, but what effects it would have had if stimuli or other states had differed. The view has arisen separately in philosophy (where it is sometimes called "inferential," or "functional" role semantics) and in cognitive science (where it is sometimes called "procedural semantics"). The source of the view is Wittgenstein (1953) and Sellars, but the source in contemporary philosophy is a series of papers by Harman (see his 1987) and Field (1977). Other proponents in philosophy have included Block, Horwich, Loar, McGinn and Peacocke (1992). In cognitive science, they include Woods (1981) and Miller and Johnson-Laird (1976). (See references in Block, 1987.). (shrink)

Evolutionary psychology and human sociobiology often reject the mere possibility of symbolic causality. Conversely, theories in which symbolic causality plays a central role tend to be both anti-nativist and anti-evolutionary. This article sketches how these apparent scientific rivals can be reconciled in the study of disgust. First, we argue that there are no good philosophical or evolutionary reasons to assume that symbolic causality is impossible. Then, we examine to what extent symbolic causality can be part of the theoretical toolbox of (...) the evolutionary social sciences. This examination leads to the conclusion that it is possible to make evolutionary sense of Mary Douglas’s theory of disgust, and that her view of symbolic causality can and should inform evolutionary theories of (sociocultural) disgust. (shrink)

Heumer and I debate animal rights, utilitarianism, libertarianism, morality and philosophy. We agree that suffering is a problem, and diverge, widely, on how to deal with it. I maintain that this author’s reputation as a libertarian, let alone an intellectual leader of this movement, is problematic. Why? That is because libertarianism, properly understood, is a theory of intra-human rights; this philosophy says nothing about right from an extra-human perspective, Heumer to the contrary notwithstanding. That is to say, he is (...) improperly importing into the freedom philosophy considerations extraneous to it. (shrink)