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The incredible achievements of modern scientific theories lead most of us to embrace scientific realism: the view that our best theories offer us at least roughly accurate descriptions of otherwise inaccessible parts of the world like genes, atoms, and the big bang. In Exceeding Our Grasp, Stanford argues that careful attention to the history of scientific investigation invites a challenge to this view that is not well represented in contemporary debates about the nature of the scientific enterprise. The historical record (...) of scientific inquiry, Stanford suggests, is characterized by what he calls the problem of unconceived alternatives. Past scientists have routinely failed even to conceive of alternatives to their own theories and lines of theoretical investigation, alternatives that were both well-confirmed by the evidence available at the time and sufficiently serious as to be ultimately accepted by later scientific communities. Stanford supports this claim with a detailed investigation of the mid-to-late 19th century theories of inheritance and generation proposed in turn by Charles Darwin, Francis Galton, and August Weismann. He goes on to argue that this historical pattern strongly suggests that there are equally well-confirmed and scientifically serious alternatives to our own best theories that remain currently unconceived. Moreover, this challenge is more serious than those rooted in either the so-called pessimistic induction or the underdetermination of theories by evidence, in part because existing realist responses to these latter challenges offer no relief from the problem of unconceived alternatives itself. Stanford concludes by investigating what positive account of the spectacularly successful edifice of modern theoretical science remains open to us if we accept that our best scientific theories are powerful conceptual tools for accomplishing our practical goals, but abandon the view that the descriptions of the world around us that they offer are therefore even probably or approximately true. (shrink)

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Advocates have sought to prove that underdetermination obtains because all theories have empirical equivalents. But algorithms for generating empirical equivalents simply exchange underdetermination for familiar philosophical chestnuts, while the few convincing examples of empirical equivalents will not support the desired sweeping conclusions. Nonetheless, underdetermination does not depend on empirical equivalents: our warrant for current theories is equally undermined by presently unconceived alternatives as well-confirmed merely by the existing evidence, so long as this transient predicament recurs for each theory and body (...) of evidence we consider. The historical record supports the claim that this recurrent, transient underdetermination predicament is our own. (shrink)

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Scientific realists have suggested that changes in our scientific communities over the course of their history have rendered those communities progressively less vulnerable to the problem of unconcieved alternatives over time. I argue in response not only that the most fundamental historical transformations of the scientific enterprise have generated steadily mounting obstacles to revolutionary, transformative, or unorthodox scientific theorizing, but also that we have substantial independent evidence that the institutional apparatus of contemporary scientific inquiry fosters an exceedingly and increasingly theoretically (...) conservative form of that inquiry. I conclude that contemporary scientific communities are actually more vulnerable to the problem of unconceived alternatives than their historical predecessors, and I briefly suggest how we might seek to pursue scientific inquiry in a less theoretically conservative way. (shrink)

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A range of empirical findings is first used to more precisely characterize our distinctive tendency to objectify or externalize moral demands and obligations, and it is then argued that this salient feature of our moral cognition represents a profound puzzle for evolutionary approaches to human moral psychology that existing proposals do not help resolve. It is then proposed that such externalization facilitated a broader shift to a vastly more cooperative form of social life by establishing and maintaining a connection between (...) the extent to which an agent is herself motivated by a given moral norm and the extent to which she uses conformity to that same norm as a criterion in evaluating candidate partners in social interaction generally. This connection ensures the correlated interaction necessary to protect those prepared to adopt increasingly cooperative, altruistic, and other prosocial norms of interaction from exploitation, especially as such norms were applied in novel ways and/or to novel circumstances and as the rapid establishment of new norms allowed us to reap still greater rewards from hypercooperation. A wide range of empirical findings is then used to support this hypothesis, showing why the status we ascribe to moral demands and considerations exhibits the otherwise puzzling combination of objective and subjective elements that it does, as well as showing how the need to effectively advertise our externalization of particular moral commitments generates features of our social interaction so familiar that they rarely strike us as standing in need of any explanation in the first place. (shrink)

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Some scientific realists suggest that scientific communities have improved in their ability to discover alternative theoretical possibilities and that the problem of unconceived alternatives therefore poses a less significant threat to contemporary scientific communities than it did to their historical predecessors. I first argue that the most profound and fundamental historical transformations of the scientific enterprise have actually increased rather than decreased our vulnerability to the problem. I then argue that whether we are troubled by even the prospect of increasing (...) theoretical conservatism in science should depend on the position we occupy in the ongoing debate concerning scientific realism itself. (shrink)

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I develop an account of predictive similarity that allows even Antirealists who accept a correspondence conception of truth to answer the Realist demand (recently given sophisticated reformulations by Musgrave and Leplin) to explain the success of particular scientific theories by appeal to some intrinsic feature of those theories (notwithstanding the failure of past efforts by van Fraassen, Fine, and Laudan). I conclude by arguing that we have no reason to find truth a better (i.e., more plausible) explanation of a theory's (...) success than predictive similarity, even of its success in making novel predictions. (shrink)

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I argue for accepting a pluralist approach to species, while rejecting the realism about species espoused by P. Kitcher and a number of other philosophers of biology. I develop an alternative view of species concepts as divisions of organisms into groups for study which are relative to the systematic explanatory interests of biologists at a particular time. I also show how this conception resolves a number of difficult puzzles which plague the application of particular species concepts.

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Realists have responded to challenges from the historical record of successful but ultimately rejected theories with what I call the selective confirmation strategy: arguing that only idle parts of past theories have been rejected, while truly success‐generating features have been confirmed by further inquiry. I argue first, that this strategy is unconvincing without some prospectively applicable criterion of idleness for theoretical posits, and second, that existing efforts to provide one either convict all theoretical posits of idleness (Kitcher) or stand refuted (...) by detailed consideration of the very examples (optical/electromagnetic ether, caloric fluid) to which they appeal (Psillos). I also argue that available avenues for improving on these proposals are unpromising. (shrink)

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I've previously suggested that the historical evidence used to challenge scientific realism should lead us to embrace what I call Uniformitarianism, but many recently influential forms of scientific realism seem happy to share this commitment. I trace a number of further points of common ground that collectively constitute an appealing Middle Path between classical forms of realism and instrumentalism, and I suggest that many contemporary realists and instrumentalists have already become fellow travelers on this Middle Path without recognizing how far (...) they have thereby diverged from those who share their labels and slogans. I conclude by describing their central remaining disagreement and the sorts of evidence needed to resolve it. (shrink)

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Sherri Roush ([2005]) and I ([2001], [2006]) have each argued independently that the most significant challenge to scientific realism arises from our inability to consider the full range of serious alternatives to a given hypothesis we seek to test, but we diverge significantly concerning the range of cases in which this problem becomes acute. Here I argue against Roush's further suggestion that the atomic hypothesis represents a case in which scientific ingenuity has enabled us to overcome the problem, showing how (...) her general strategy is undermined by evidence I have already offered in support of what I have called the 'problem of unconceived alternatives'. I then go on to show why her strategy will not generally (if ever) allow us to formulate and test exhaustive spaces of hypotheses in cases of fundamental scientific theorizing. (shrink)

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Most commonly, the scientific realism debate is seen as dividing those who do and do not think that the striking empirical and practical successes of at least our best scientific theories indicate with high probability that those theories are ‘approximately true’. But I want to suggest that this characterization of the debate has far outlived its usefulness. Not only does it obscure the central differences between two profoundly different types of contemporary scientific realist, but even more importantly it serves to (...) disguise the most substantial points of actual disagreement between these two kinds of realists and those who instead think the historical record of scientific inquiry itself reveals that such realism is untenable in either form. (shrink)

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Reply in Book Symposium on James Ladyman, Don Ross: 'Everything must go: metaphysics naturalized', Oxford: Oxford University Press, 2007.

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Critics who use historical evidence to challenge scientific realism have deployed a perfectly natural argumentative strategy that has created a profoundly misguided conception of what would be required to vindicate that challenge. I argue that the question fundamentally in dispute in such debates is neither whether particular terms in contemporary scientific theories will be treated as referential nor whether particular existential commitments will be held true by future scientific communities, but whether the future of science will exhibit the same broad (...) pattern of repeated, profound, and unpredictable changes in theoretical orthodoxy that such historicist critics argue characterizes its past. (shrink)

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J. L. Mackie's famous claim that Locke ‘anticipates’ Kripke's Causal Theory of Reference rests, I suggest, upon a pair of important misunderstandings. Contra Mackie, as well as the more recent accounts of Paul Guyer and Michael Ayers, Lockean Real Essences consist of those features of an entity from which all of its experienceable properties can be logically deduced; thus a substantival Real Essence consists of features of a Real Constitution plus logically necessary objective connections between them and features of some (...) particular Nominal Essence. Furthermore, what Locke actually anticipates is the most significant contemporary challenge to the CTR: the qua‐problem. (shrink)

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It might seem incoherent or a contradiction in terms to suggest that we can be philosophical naturalists while nonetheless resisting the scientific realist's view that that the claims of our best scientific theories concerning otherwise inaccessible domains of nature are at least probably and/or approximately true. I suggest, however, that this conclusion follows only from a dogmatic and unappealingly scientistic conception of naturalism itself. I go on to argue not only that a more attractive form of philosophical naturalism can indeed (...) be coherently combined with a rejection of scientific realism, but also that this combination of views is the one that thoroughgoing and sophisticated naturalists should in fact embrace. And I conclude by offering a systematic conception of the role of philosophy of science in the resulting integrative form of naturalistic inquiry. (shrink)

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I contrast our own evidence for the hypothesis of organic fossil origins with that available in previous centuries, suggesting that the most powerful contemporary evidence consists in a form of projective support whose distinctive features are not well captured by familiar hypothetico-deductive, abductive, or even more recent and more technically sophisticated accounts of scientific confirmation. I suggest that such accounts either misrepresent or ignore something important about the heterogeneous ways in which scientific hypotheses can be supported by evidence, and I (...) go on to suggest that the search for any single such account may be misguided in any case. (shrink)

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P. Kyle Stanford - The Manifest Connection: Causation, Meaning, and David Hume - Journal of the History of Philosophy 40:3 Journal of the History of Philosophy 40.3 339-360 The Manifest Connection: Causation, Meaning, and David Hume P. Kyle Stanford 1. Introduction exciting recent hume scholarship has challenged the traditional view that Hume's theory of meaning leads him to deny the very intelligibility or coherence of supposing that there are objective causal powers or intrinsic necessary connections between causally related entities. Influential (...) recent interpretations have variously held that Hume himself accepted the existence of such powers and connections, that he was genuinely agnostic about them, or that he denied their existence while nonetheless holding it to be a perfectly coherent possibility, indeed one that we routinely think actual. In this paper I will argue against all three of these lines of interpretation and in favor of what I consider a neglected alternative: that Hume rejects the existence of objective necessary connections or causal powers as literally incoherent or meaningless, but on subtle and sophisticated semantic grounds, rather than simplistic ones. I find support for this semantic reading and against the alternatives not only in passages whose significance to the debate is widely appreciated, but also in Hume's discussions "Of Liberty and Necessity" and "Of the Immateriality of the Soul." The.. (shrink)

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At the heart of the underdetermination of scientific theory by evidence is the simple idea that the evidence available to us at a given time may fail to determine what beliefs we should hold in response to it. In a textbook example, if I all I know is that you spent $10 on apples and oranges and that apples cost $1 while oranges cost $2, then I know that you did not buy six oranges, but I do not know whether (...) you bought one orange and eight apples, two oranges and six apples, and so on. A simple scientific example can be found in the rationale behind the sensible methodological adage that “correlation does not imply causation”. If watching lots of cartoons causes children to be more violent in their playground behavior then we should (barring complications) expect to find a correlation between levels of cartoon viewing and violent playground behavior. But that is also what we would expect to find if children who are prone to violence tend to enjoy and seek out cartoons more than other children, or if propensities to violence and increased cartoon viewing are both caused by some third factor (like general parental neglect or excessive consumption of jellybeans). So a high correlation between cartoon viewing and violent playground behavior is evidence that (by itself) simply underdetermines what we should believe about the causal relationship between these two activities. As we will see, however, the challenge of distinguishing correlation from causation is far from the only important circumstance in which underdetermination is thought to arise in scientific inquiry. (shrink)

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In earlier work I have argued that the most substantial threat to scientific realism arises from the problem of unconceived alternatives: the repeated failure of past scientists and scientific communities to conceive of alternatives to extant scientific theories, even when such alternatives were both (1) well confirmed by the evidence available at the time and (2) sufficiently scientifically serious as to be later embraced by actual scientific communities. In this paper I explore Charles Darwin's development and defense of his 'pangenesis' (...) theory of inheritance and conclude that this particular historical example offers impressive support for the challenge posed to realism by this problem of unconceived alternatives. (shrink)

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I have argued elsewhere that scientific realism is most significantly challenged neither by traditional arguments from underdetermination of theories by the evidence, nor by the traditional pessimistic induction, but by a rather different historical pattern: our repeated failure to conceive of alternatives to extant scientific theories, even when those alternatives were both (1) well-confirmed by the evidence available at the time and (2) sufficiently scientifically serious as to be later embraced by actual scientific communities. Here I use August Weismann's defense (...) of his influential germ-plasm theory of inheritance to support my claim that this pattern characterizes the history of theoretical scientific investigation generally. Weismann believed that the germ-plasm must become disintegrated into its constituent elements over the course of development, I argue, only because he failed to conceive of any possible alternative mechanism of ontogenetic differentiation. This and other features of the germ-plasm theory, I suggest, reflect a still more fundamental failure to imagine that the germ-plasm might be a productive rather than expendable resource for the cell. Weismann's case provides impressive support for the problem of unconceived alternatives while rendering its challenge to scientific realism deeper and sharper in a number of important ways. (shrink)

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Genic selectionism holds that all selection can be understood as operating on particular genes. Critics (and conventional biological wisdom) insist that this misrepresents the actual causal structure of selective phenomena at higher levels of biological organization, but cannot convincingly defend this intuition. I argue that the real failing of genic selectionism is pragmatic – it prevents us from adopting the most efficient corpus of causal laws for predicting and intervening in the course of affairs – and I offer a Pragmatic (...) account of causation itself which ultimately bears out the claim that genic selectionism misrepresents the causal structure of selective contexts. (shrink)

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Wilfrid Sellars famously argued that we find ourselves simultaneously presented with the scientific and manifest images and that the primary aim of philosophy is to reconcile the competing conceptions of ourselves and our place in the world they offer. I first argue that Sellars’ own attempts at such a reconciliation must be judged a failure. I then go on to point out that Sellars has invited us to join him in idealizing and constructing the manifest and scientific images by conflating (...) a number of importantly distinct contrasts between heterogeneous forms of representation we employ and to argue that we are better off declining this invitation. Recognizing the important differences between these contrasts does not simply obviate the problems of integrating, connecting, and reconciling the various sorts of representations we have of various parts of the world and our own place within it, but it reveals as misguided the notion that there is just a single, fundamental problem of such reconciliation to be solved. It also suggests a potentially far more promising starting point for trying to satisfy the fundamental ambition Sellars attributes to philosophical inquiry itself. (shrink)

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I respond to the many thoughtful suggestions and concerns of my commentators on a wide variety of questions. These include whether moral norms form a unified category, whether they have a distinctive phenomenology, and/or whether moral normativity is a cultural construct; whether moral externalization is necessary for correlated interaction or human prosociality; precisely how such externalization generates correlated interactions among prosocial agents; and whether there are any convincing alternative explanations for it.

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In this paper we critically examine and seek to extend Philip Kitcher’s Ethical Project to weave together a distinctive naturalistic conception of how ethics came to occupy the place it does in our lives and how the existing ethical project should be revised and extended into the future. Although we endorse his insight that ethical progress is better conceived of as the improvement of an existing state than an incremental approach towards a fixed endpoint, we nonetheless go on to argue (...) that the metaethical apparatus Kitcher constructs around this creative metaethical proposal simply cannot do the work that he demands of it. The prospect of fundamental conflict between different functions of the ethical project requires Kitcher to appeal to a particular normative stance in order to judge specific changes in the ethical project to be genuinely progressive, and we argue that the virtues of continuity and coherence to which he appeals can only specify rather than justify the normative stance he favors. We conclude by suggesting an alternative approach for ethical naturalists that seems to us ultimately more promising than Kitcher’s own. (shrink)

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Elsewhere I have argued that the most significant threat to scientific realism arises from what I call the problem of unconceived alternatives: the repeated failure of past scientists and scientific communities to even conceive of alternatives to extant scientific theories, even when such alternatives were both (1) well-confirmed by the evidence available at the time and (2) sufficiently scientifically serious as to be actually embraced in the course of further investigation. In this paper I explore Francis Galton’s development and defense (...) of his “stirp” theory of inheritance and conclude that this particular historical example offers impressive support for the challenge posed by the problem of unconceived alternatives while simultaneously showing how we can make that challenge deeper and sharper. (shrink)

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