The no-miracles argument for realism and the pessimistic meta-induction for anti-realism pull in opposite directions. Structural Realism---the position that the mathematical structure of mature science reflects reality---relieves this tension.

SummaryenThe main argument for scientific realism is that our present theories in science are so successful empirically that they can't have got that way by chance - instead they must somehow have latched onto the blueprint of the universe. The main argument against scientific realism is that there have been enormously successful theories which were once accepted but are now regarded as false. The central question addressed in this paper is whether there is some reasonable way to have the best (...) of both worlds: to give the argument from scientific revolutions its full weight and yet still adopt some sort of realist attitude towards presently accepted theories in physics and elsewhere. I argue that there is such a way - through structural realism, a position adopted by Poincare, and here elaborated and defended. (shrink)

Most scholars think not. But in this pioneering book, John H. Zammito challenges that view by revealing a precritical Kant who was immensely more influential than the one philosophers think they know.

In a world plagued by disagreement and conflict one might expect that the exact sciences of logic and mathematics would provide a safe harbor. In fact these disciplines are rife with internal divisions between different, often incompatible, systems. Do these disagreements admit of resolution? Can such resolution be achieved without disturbing assumptions that the theorems of logic and mathematics state objective truths about the real world? In this original and historically rich book John Woods explores apparently intractable disagreements in (...) logic and the foundations of mathematics and sets out conflict resolution strategies that evade or disarm these stalemates. An important sub-theme of the book is the extent to which pluralism in logic and the philosophy of mathematics undermines realist assumptions. This book makes an important contribution to such areas of philosophy as logic, philosophy of language and argumentation theory. It will also be of interest to mathematicians and computer scientists. (shrink)

We are sceptical of concerns over the opacity of algorithmic decision tools. While transparency and explainability are certainly important desiderata in algorithmic governance, we worry that automated decision-making is being held to an unrealistically high standard, possibly owing to an unrealistically high estimate of the degree of transparency attainable from human decision-makers. In this paper, we review evidence demonstrating that much human decision-making is fraught with transparency problems, show in what respects AI fares little worse or better and argue that (...) at least some regulatory proposals for explainable AI could end up setting the bar higher than is necessary or indeed helpful. The demands of practical reason require the justification of action to be pitched at the level of practical reason. Decision tools that support or supplant practical reasoning should not be expected to aim higher than this. We cast this desideratum in terms of Daniel Dennett’s theory of the “intentional stance” and argue that since the justification of action for human purposes takes the form of intentional stance explanation, the justification of algorithmic decisions should take the same form. In practice, this means that the sorts of explanations for algorithmic decisions that are analogous to intentional stance explanations should be preferred over ones that aim at the architectural innards of a decision tool. (shrink)

Introduction A brief look at the competing present-day interpretations of Hume's philosophy will leave the uninitiated reader completely baffled. On the one hand , Hume is seen as a philosopher who attempted to analyse concepts with ...

Evidence-Based Medicine is a relatively new movement that seeks to put clinical med- icine on a firmer scientific footing. I take it as uncontroversial that medical practice should be based on best evidence-the interesting questions concern the details. This paper tries to move towards a coherent and unified account of best evidence in medicine, by exploring in particular the EBM position on RCTs (randomized controlled trials).

Evidence-Based Medicine is a relatively new movement that seeks to put clinical medicine on a firmer scientific footing. I take it as uncontroversial that medical practice should be based on best evidence—the interesting questions concern the details. This paper tries to move towards a coherent and unified account of best evidence in medicine, by exploring in particular the EBM position on RCTs.

The evidence from randomized controlled trials (RCTs) is widely regarded as supplying the ‘gold standard’ in medicine—we may sometimes have to settle for other forms of evidence, but this is always epistemically second-best. But how well justified is the epistemic claim about the superiority of RCTs? This paper adds to my earlier (predominantly negative) analyses of the claims produced in favour of the idea that randomization plays a uniquely privileged epistemic role, by closely inspecting three related arguments from leading contributors (...) to the burgeoning field of probabilistic causality—Papineau, Cartwright and Pearl. It concludes that none of these further arguments supplies any practical reason for thinking of randomization as having unique epistemic power. IntroductionWhy the issue is of great practical importance—the ECMO casePapineau on the ‘virtues of randomization’Cartwright on causality and the ‘ideal’ randomized experimentPearl on randomization, nets and causesConclusion. (shrink)

Obviously medicine should be evidence-based. The issues lie in the details: what exactly counts as evidence? Do certain kinds of evidence carry more weight than others? (And if so why?) And how exactly should medicine be based on evidence? When it comes to these details, the evidence-based medicine (EBM) movement has got itself into a mess – or so it will be argued. In order to start to resolve this mess, we need to go 'back to basics'; and that means (...) turning to the philosophy of science. The theory of evidence, or rather the logic of the interrelations between theory and evidence, has always been central to the philosophy of science – sometimes under the alias of the 'theory of confirmation'. When taken together with a little philosophical commonsense, this logic can help us move towards a position on evidence in medicine that is more sophisticated and defensible than anything that EBM has been able so far to supply. (shrink)

It is surely obvious that medicine, like any other rational activity, must be based on evidence. The interest is in the details: how exactly are the general principles of the logic of evidence to be applied in medicine? Focussing on the development, and current claims of the ‘Evidence-Based Medicine’ movement, this article raises a number of difficulties with the rationales that have been supplied in particular for the ‘evidence hierarchy’ and for the very special role within that hierarchy of randomized (...) controlled trials (and meta-analyses of the results of randomized controlled trials). The point is not at all to question the application of a scientific approach to evidence in medicine, but, on the contrary, to indicate a number of areas where philosophers of science can contribute to a proper implementation of exactly that scientific-evidential approach. (shrink)

We address the question of whether it is possible to operate a time machine by manipulating matter and energy so as to manufacture closed timelike curves. This question has received a great deal of attention in the physics literature, with attempts to prove no- go theorems based on classical general relativity and various hybrid theories serving as steps along the way towards quantum gravity. Despite the effort put into these no-go theorems, there is no widely accepted definition of a time (...) machine. We explain the conundrum that must be faced in providing a satisfactory definition and propose a resolution. Roughly, we require that all extensions of the time machine region contain closed timelike curves; the actions of the time machine operator are then sufficiently "potent" to guarantee that closed timelike curves appear. We then review no-go theorems based on classical general relativity, semi-classical quantum gravity, quantum field theory on curved spacetime, and Euclidean quantum gravity. Our verdict on the question of our title is that no result of sufficient generality to underwrite a confident "yes" has been proven. Our review of the no-go results does, however, highlight several foundational problems at the intersection of general relativity and quantum physics that lend substance to the search for an answer. (shrink)

Are theories ‘underdetermined by the evidence’ in any way that should worry the scientific realist? I argue that no convincing reason has been given for thinking so. A crucial distinction is drawn between data equivalence and empirical equivalence. Duhem showed that it is always possible to produce a data equivalent rival to any accepted scientific theory. But there is no reason to regard such a rival as equally well empirically supported and hence no threat to realism. Two theories are empirically (...) equivalent if they share all consequences expressed in purely observational vocabulary. This is a much stronger requirement than has hitherto been recognised— two such ‘rival’ theories must in fact agree on many claims that are clearly theoretical in nature. Given this, it is unclear how much of an impact on realism a demonstration that there is always an empirically equivalent ‘rival’ to any accepted theory would have—even if such a demonstration could be produced. Certainly in the case of the version of realism that I defend—structural realism—such a demonstration would have precisely no impact: two empirically equivalent theories are, according to structural realism, cognitively indistinguishable. (shrink)

This essay criticizes John Norton's 2010 defense of the thesis that “all induction is local.” Norton's local inductions are bound, if cogent, to involve general principles, and the need to accredit these general principles threatens to lead to all the usual problems associated with the ‘problem of induction’. Norton, in fact, recognizes this threat, but his responses are inadequate. The right response involves not induction but a sophisticated version of hypothetico-deduction. Norton's secondary thesis—that if there is a general account (...) of cogent scientific reasoning, then it is certainly not the one supported by personalist Bayesians—is also criticized. (shrink)

John Martin Fischer is one of the leading proponents of semi-compatibilism, one of the ideas proposed in the debates on free will and determinism. According to him, even if it is not possible to make a free choice once determinism is accepted, persons can be held morally responsible for their actions. Thus, the ability to choose one of several alternatives, i.e. to act otherwise, is not necessary for moral responsibility. In his translated article Responsibility and Inevitability, Fischer sketches an (...) outline of a theory of moral responsibility that explains how persons are responsible for their actions, for the actions they do not perform (omissions), and for the consequences of their actions or omissions. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Philosophy after ChristJohn O'CallaghanConsider the words of Justin Martyr written in the middle of the second century after the birth of Christ and after Justin's conversion to Christianity:Philosophy is indeed one's greatest possession, and is most precious in the sight of God, to whom it alone leads us and to whom it unites us, and in truth they who have applied themselves to philosophy are holy men.1In addition to (...) the praise heaped upon the philosophers, among whom Justin had counted himself before his conversion,2 the text is one of the earliest pieces of evidence for the historical reality of Christian intellectual engagement with pagan or secular philosophy. Whether that engagement proved spiritually fruitful or sterile in any particular age or any particular tradition of philosophy, Christian intellectuals have often sought out engagement with philosophy as an inherent task of the intellectual life of the Church, in order to pursue and develop the understanding of Christian revelation and the mode of life informed by it. One lasting result of the impetus represented by Justin is to be found even now in the normative requirement in Catholic education that, at a certain stage of development, anyone who receives a [End Page 49] serious Catholic education must be introduced to serious philosophical reflection on where we came from, what we are, and where we are born to go.In addition, one of the general points John Henry Newman made in The Idea of a University is that the human mind looks for unity in the diversity of intellectual disciplines it pursues. In search of this unity, it seeks a kind of primary discipline that takes into account the truths discovered throughout the other disciplines as it seeks to understand what it can of the whole of reality, not just its parts. But Newman also pointed out that, in the absence of such a unifying discipline, practitioners of each particular discipline will often claim for their particular discipline the prize of being primary—of being the discipline by which all others must be understood and judged.3Take classical and modern physics. A familiar claim of some physicists, but even more so of non-physicist physicalists, is that physics is the fundamental intellectual discipline for understanding what is real. All reality, living reality, historical reality, moral reality, indeed perhaps even literary reality, must be reduced to reality as described by the physicists or rejected as unreal or epiphenomenal, or in a kinder, gentler vein, non-reductively emergent and supervenient. Whichever position is taken, whether reduction, non-reductive emergence, or epiphenomenalism, the thought is that the real work of the really real is done by reality as described by physics, either in its actual contemporary state or, more likely, in an idealized future state always on the horizon of where physics presently is. We are really atoms spinning ceaselessly in the void, mostly empty space, the warp and woof of a four-dimensional space-time manifold, or congeries of strings in an even more bizarre thirteen-dimensional manifold, or whatever was said most recently to surpass what was said before that by the leading physicists in California or Cambridge.However, anyone who has actually practiced physics knows that, even when uttered by a physicist, these are not claims of physics, but about physics. What prompts them is the sense that there is no intellectual discipline other than contemporary physics itself that can both understand the achievements of physics and integrate them into a larger intellectual comprehension of reality as a whole. These claims about physics nicely display Newman's point about the way in which a particular discipline, in the absence of a larger more comprehensive discipline, can take on an importance for its practitioners well beyond its disciplinary limits. [End Page 50]In the case of physics, if a more comprehensive unifying discipline is not to be found, this attitude is not entirely unjustified, for Newman's point is partly Aristotelian. Aristotle had pointed out that, if one cannot show that unchangeable, and thus non-physical beings, exist, then what Aristotle called "first philosophy" would just be physics as he understood it, the science of... (shrink)

This superb collection by the eminent physicist and critic John Ziman, opens with an album of portraits of scientists--Albert Einstein, Freeman Dyson, Lev Landau, Mark Azbel, Andrei Sakharov. Ziman takes readers into the world of the contemporary scientist, showing how discoveries are made and how claims are tested. He then travels into the minds of scientists as they are drawn into competing directions. Here Ziman exposes the path of discovery, which is strewn with complex human needs, governmental restrictions, the (...) desire for profits, and the exercise of technical virtuosity. (shrink)

In this book John Ziman seeks the answers to crucial questions facing scientists who need to change the direction of their careers.

The purpose of this book is to give a coherent account of the different perspectives on science and technology that are normally studied under various disciplinary heads such as philosophy of science, sociology of science and science policy. It is intended for students embarking on courses in these subjects and assumes no special knowledge of any science. It is written in a direct and simple style, and technical language is introduced very sparingly. As various perspectives are sketched out in this (...) book, the reader moves towards a consistent conception of contemporary science as a rapidly changing social institution that has already grown out of its traditional forms and plays a central role in society at large. It will appeal to students in a wide range of scientific disciplines and complement well Professor Ziman's earlier books. (shrink)

Kant’s philosophy of science takes on sharp contour in terms of his interaction with the practicing life scientists of his day, particularly Johann Blumenbach and the latter’s student, Christoph Girtanner, who in 1796 attempted to synthesize the ideas of Kant and Blumenbach. Indeed, Kant’s engagement with the life sciences played a far more substantial role in his transcendental philosophy than has been recognized hitherto. The theory of epigenesis, especially in light of Kant’s famous analogy in the first Critique, posed crucial (...) questions regarding the ‘looseness of fit’ between the constitutive and the regulative in Kant’s theory of empirical law. A detailed examination of Kant’s struggle with epigenesis between 1784 and 1790 demonstrates his grave reservations about its hylozoist implications, leading to his even stronger insistence on the discrimination of constitutive from regulative uses of reason. The continuing relevance of these issues for Kant’s philosophy of science is clear from the work of Buchdahl and its contemporary reception. (shrink)

Compatibilist libertarianism claims that alternate possibilities for action at the agential level are consistent with determinism at the physical level. Unlike traditional compatibilism about alternate possibilities, involving conditional or dispositional accounts of the ability to act, compatibilist libertarianism offers us unqualified modalities at the agential level, consistent with physical determinism, a potentially big advance. However, I argue that the account runs up against two problems. Firstly, the way in which the agential modalities are generated talks past the worries of the (...) incompatibilist in the traditional free will problem. As such, it fails to dispel the worries that determinism generates for the incompatibilist. Secondly, in spite of the ingenious use of the supervenience thesis and multiple realizability, the position still allows us to generate the old worry that determinism at the physical level would mean no alternate possibilities at the level of agency. In particular, I develop a new example, the ‘atomic slit case’ that demonstrates how physical level information is salient to what is possible at the agential level, motivating incompatibilism. (shrink)

The danger of human operators devolving responsibility to machines and failing to detect cases where they fail has been recognised for many years by industrial psychologists and engineers studying the human operators of complex machines. We call it “the control problem”, understood as the tendency of the human within a human–machine control loop to become complacent, over-reliant or unduly diffident when faced with the outputs of a reliable autonomous system. While the control problem has been investigated for some time, up (...) to this point its manifestation in machine learning contexts has not received serious attention. This paper aims to fill that gap. We argue that, except in certain special circumstances, algorithmic decision tools should not be used in high-stakes or safety-critical decisions unless the systems concerned are significantly “better than human” in the relevant domain or subdomain of decision-making. More concretely, we recommend three strategies to address the control problem, the most promising of which involves a complementary coupling between highly proficient algorithmic tools and human agents working alongside one another. We also identify six key principles which all such human–machine systems should reflect in their design. These can serve as a framework both for assessing the viability of any such human–machine system as well as guiding the design and implementation of such systems generally. (shrink)

The imagery we adopt when recalling the personal past may involve different perspectives. In many cases, we remember the past event from our original point of view. In some cases, however, we remember the past event from an external “observer” perspective and view ourselves in the remembered scene. Are such observer perspective images genuine memories? Are they accurate representations of the personal past? This chapter focuses on such observer perspectives in memory, and outlines and examines proposals about the nature of (...) such imagery. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Are There Failed Persons?John O'CallaghanIntroductionAre there failed persons? Yes. However, before explaining what a failed person is, it will be good to consider closely a very significant part of our society to get a sense of what it thinks a failed person is, since my account of what a failed person is is markedly different. It is important to think about the question of failed persons because there (...) are growing movements here and abroad aimed at killing by medical means human beings who are judged in some sense to be failed persons, human beings who do not count as persons according to a common societal notion of persons, a social-psychological notion of persons.The question for anyone who lives within this society with its notion of failed persons is whether one will take part in and support this movement toward killing human beings or avoid it, indeed whether one will push back against it. It is easy enough to fall into a trap of thinking about failed persons the way much of our society does. One's complicity in adopting the social-psychological notion of person contributes to enabling the acceptance of such killing, even if one believes one would never perform the killing act. My effort here is precisely to push back against such killing, by pushing back against the notion of persons that animates it.The killing of human beings by our society is not simply confined to abortion, as it has been legally and widely available here in the United States for almost fifty years now. Recent political discussions in the wake of the Dobbs decision have made it clear that many political leaders think such killing ought to be allowed all the way up until birth, and perhaps after. Relatively [End Page 1123] recently there was an article in a mainstream bioethics journal by Alberto Giubilini and Francesca Minerva arguing that what most people would take to be cases of infanticide should be renamed, per their title, "After-Birth Abortion."1 The article was not about the moral legitimacy of either infanticide or abortion. The moral legitimacy of those acts for various reasons was taken as a given by the authors. In the case of euthanizing infants, they noted the expanding number of arguments for it among philosophers, the desire for guidelines for doing it among members of the medical profession, and the protocols for it established in places like the Netherlands.The authors argued that in the case of newborns, including healthy newborns, killing them should not be considered infanticide or euthanasia.2 They distinguished abortion from both euthanasia and infanticide. Euthanasia involves killing a human person, where a person is understood to be a being that can experience itself as having interests that can be harmed. "We take 'person' to mean an individual who is capable of attributing to her own existence some (at least) basic value such that being deprived of this existence represents a loss to her."3 Euthanasia, when justified, is justified by being in the best "interests" of the person killed. Infanticide involves euthanizing children.However, the authors claim that a newborn is not a person in the sense of "person" specified. So, the authors' term "after-birth abortion" is a terminological distinction based upon denying that a newborn is a child, children being persons. They also assume that infants are children as they understand "child." So not being a child, a newborn cannot be an infant. Not being an infant, killing it cannot be infanticide or euthanasia, again as the authors define those terms.4 Instead, killing the newborns, healthy or not, should be thought of as having the same moral weight as an abortion before birth, and thus rather than being called infanticide or euthanasia, it should be called "after-birth abortion."5Killing a newborn then is "ethically permissible" in just the same circumstances and for the same reasons as abortion is ethically permissible. Among [End Page 1124] the "ethically permissible" circumstances for killing newborns, including perfectly healthy newborns, are that the "well-being of the family is at risk" with respect to "social, psychological, economic" factors,6 but also the fact... (shrink)

Consider the proposition, "Informal logic is a subdiscipline of philosophy". The best chance of showing this to be true is showing that informal logic is part of logic, which in turn is a part of philosophy. Part 1 is given over to the task of sorting out these connections. If successful, informal logic can indeed be seen as part of philosophy; but there is no question of an exclusive relationship. Part 2 is a critical appraisal of the suggestion that informal (...) logic is applied epistemology. Part 3 examines the claim that informal logic has failed to penetrate into mainstream philosophy, and suggestions for amelioration are considered. (shrink)

In a randomized clinical trial (RCT), a group of patients, initially assembled through a mixture of deliberation (involving explicit inclusion and exclusion criteria) and serendipity (which patients happen to walk into which doctor’s clinic while the trial is in progress), are divided by some random process into an experimental group (members of which will receive the therapy under test) and a control group (members of which will receive some other treatment – perhaps placebo, perhaps the currently standard treatment for the (...) condition at issue). In a ‘double blind’ trial neither the patient nor the clinician knows to which of the groups a particular patient belongs. The results of double blind randomized controlled trials are almost universally regarded as providing the ‘gold standard’ for evidence in medicine. Fairly extreme claims to this effect can be found in the literature. For example the statistician Tukey wrote (1977, p. 679) “almost the only source of reliable evidence [in medicine] … is that obtained from … carefully conducted randomised trials”. And the clinician Victor Herbert claimed (1977, p. 690) “..the only source of reliable evidence rising to the level of proof about the usefulness of any new therapy is that obtained from wellplanned and carefully conducted randomized, and, where possible, coded (double blind) clinical trials. [Other] studies may point in a direction, but cannot be evidence as lawyers use the term evidence to mean something probative … [that is] tending to prove or actually proving”. Finally, the still very influential movement in favour of ‘Evidence Based Medicine’ (EBM) that began at McMaster University in the 1980s was initially often regarded as endorsing the claim that only RCTs provide real scientifically telling evidence. (shrink)

A philosopher once wrote the following words:If I examine the PTOLOMAIC and COPERNICAN systems, I endeavour only, by my enquiries, to know the real situation of the planets; that is, in other words, I endeavour to give them, in my conception, the same relations, that they bear towards each other in the heavens. To this operation of the mind, therefore, there seems to be always a real, though often an unknown standard, in the nature of things; nor is truth or (...) falsehood variable by the various apprehensions of mankind. Though all human race should for ever conclude, that the sun moves, and the earth remains at rest, the sun stirs not an inch from his place for all these reasonings; and such conclusions are eternally false and erroneous. (shrink)

In African society today, ubuntu as a notion of African humanism has been, and still is, subject to critical discussion. In African literature, philosophy, ethics, anthropology and theology, ubuntu plays a vast role and scholars in Africa and globally find the notion highly debated. The concept of identity development on the African continent has been written about broadly. This article unpacks the ubuntu philosophies of Augustine Shutte, Kwame Gyekye and John Mbiti. The views of these scholars will be contrasted (...) to critically engage the conceivable commonalities for identity development through cultures. The question addressed herein is: What are the similarities and dissimilarities of ubuntu as a cornerstone for identity development in modern Africa? This article also examines the divergent definition and historical development of ubuntu culture, ubuntu philosophy of identity development, environmental development and various thinkers’ understanding of this African worldview in current Africa and further afield. Contribution: This research contributes to African theological ethics of the new landscape identity and explores the ubuntu worldviews as a developmental process of identities across cultures. Since identity development across cultures is highly dynamic, the hermeneutical interpretation of the principles of ubuntu is crucial. (shrink)

The article discusses the varying conceptions of the faculty of ‘the understanding’ in 18th-century British philosophy and logic. Topics include the distinction between the understanding and the will, the traditional division of three acts of understanding and its critics, the naturalizing of human understanding, conceiving of the limits of human understanding, British innatism and the critique of empiricist conceptions of the understanding, and reconceiving the understanding and the elimination of scepticism. Authors discussed include Richard Price, James Harris, Zachary Mayne, Edward (...) Bentham, Isaac Watts, Dugald Stewart, John Norris—as well as Locke, Berkeley, Hume and Reid. (shrink)

Worrall argued that structural realism provides a ‘synthesis’ of the main pro-realist argument – the ‘No Miracles Argument’, and the main anti-realist argument – the ‘Pessimistic Induction’. More recently, however, it has been claimed that each of these arguments is an instance of the same probabilistic fallacy – sometimes called the ‘base-rate fallacy’. If correct, this clearly seems to undermine structural realism and Magnus and Callender have indeed claimed that both arguments are fallacious and ‘without [them] we lose the rationale (...) for … structural realism ’. I here argue that what have been shown to be fallacious are simply misguided formalisations of ‘the’ arguments and that when they are properly construed they continue to provide powerful motivation for favouring structural realism. (shrink)

There are several features of law which rightly draw the interest of philosophers, especially those whose expertise lies in ethics and social and political philosophy. But the law also has features which haven’t stirred much in the way of philosophical investigation. I must say that I find this surprising. For the fact is that a well-run criminal trial is a master-class in logic and epistemology. Below I examine the logical and epistemological properties of greatest operational involvement in a criminal proceedings, (...) concepts such as evidence, proof, argument, inference, relevance, probability, and more. My principal objective is to expose the deep cleavage between establishment norms in epistemology and logic and standard practice in criminal proceedings. This gives us two options to reflect upon. In one, the establishment norms for the correct management of the concepts in question are basically sound. In that case, as I will show, common law criminal practice would be basically unsound; its convictions would be basically false and unjust. Seen from the other perspective, the criminal justice system would be basically sound, and its criminal convictions basically true and just. It turns out to matter that option one meets with widely spread common disbelief and is generally taken as contrary to common knowledge. What is needed here is an epistemology which gives these sentiments some air to breathe. I will argue that on balance it is the logico-epistemic establishment which requires some serious rethinking. (shrink)