A new variational method, the principle of least radix economy, is formulated. The mathematical and physical relevance of the radix economy, also called digit capacity, is established, showing how physical laws can be derived from this concept in a unified way. The principle reinterprets and generalizes the principle of least action yielding two classes of physical solutions: least action paths and quantum wavefunctions. A new physical foundation of the Hilbert space of quantum mechanics is then accomplished and it is used (...) to derive the Schrödinger and Dirac equations and the breaking of the commutativity of spacetime geometry. The formulation provides an explanation of how determinism and random statistical behavior coexist in spacetime and a framework is developed that allows dynamical processes to be formulated in terms of chains of digits. These methods lead to a new foundation for Lorentz transformations and special relativity. The Parker-Rhodes combinatorial hierarchy is encompassed within our approach and this leads to an estimate of the interaction strength of the electromagnetic and gravitational forces that agrees with the experimental values to an error of less than one thousandth. Finally, it is shown how the principle of least-radix economy naturally gives rise to Boltzmann’s principle of classical statistical thermodynamics. A new expression for a general nonequilibrium entropy is proposed satisfying the Second Law of Thermodynamics. (shrink)

There are three main claims in the paper: first, there is sufficient evidence for affirming that Ricardo adhered to Smith's productivity theory; second, Ricardo's original demonstration of the comparative- advantage proposition is indeed compatible and complementary with respect to the latter; and third, Ricardo agreed with Smith's multifactorial explanation of the pattern of trade, which includes increasing returns and economies of scale. These results suggest that the level of compatibility between the international trade theories of Smith and Ricardo is (...) significantly higher than it is currently reflected in the economic literature. They also add a new perspective to the ongoing process of reassessment of Smith's contributions to international trade theory, further strengthening the view that he was indeed an outstanding international trade theorist. (shrink)

Whether the prefrontal cortex is part of the neural substrates of consciousness is currently debated. Against prefrontal theories of consciousness, many have argued that neural activity in the prefrontal cortex does not correlate with consciousness but with subjective reports. We defend prefrontal theories of consciousness against this argument. We surmise that the requirement for reports is not a satisfying explanation of the difference in neural activity between conscious and unconscious trials, and that prefrontal theories of consciousness come out of (...) this debate unscathed. (shrink)

Explainable artificial intelligence has become a vitally important research field aiming, among other tasks, to justify predictions made by intelligent classifiers automatically learned from data. Importantly, efficiency of automated explanations may be undermined if the end user does not have sufficient domain knowledge or lacks information about the data used for training. To address the issue of effective explanation communication, we propose a novel information-seeking explanatory dialogue game following the most recent requirements to automatically generated explanations. Further, we generalise (...) our dialogue model in form of an explanatory dialogue grammar which makes it applicable to interpretable rule-based classifiers that are enhanced with the capability to provide textual explanations. Finally, we carry out an exploratory user study to validate the corresponding dialogue protocol and analyse the experimental results using insights from process mining and argument analytics. A high number of requests for alternative explanations testifies the need for ensuring diversity in the context of automated explanations. (shrink)

Providing meaningful and actionable explanations for end-users is a situated problem requiring the intersection of multiple disciplines to address social, operational, and technical challenges. However, the explainable artificial intelligence community has not commonly adopted or created tangible design tools that allow interdisciplinary work to develop reliable AI-powered solutions. This paper proposes a formative architecture that defines the explanation space from a user-inspired perspective. The architecture comprises five intertwined components to outline explanation requirements for a task: (1) the end-users’ (...) mental models, (2) the end-users’ cognitive process, (3) the user interface, (4) the Human-Explainer Agent, and (5) the agent process. We first define each component of the architecture. Then, we present the Abstracted Explanation Space, a modeling tool that aggregates the architecture’s components to support designers in systematically aligning explanations with end-users’ work practices, needs, and goals. It guides the specifications of what needs to be explained (content: end-users’ mental model), why this explanation is necessary (context: end-users’ cognitive process), to delimit how to explain it (format: Human-Explainer Agent and user interface), and when the explanations should be given. We then exemplify the tool’s use in an ongoing case study in the aircraft maintenance domain. Finally, we discuss possible contributions of the tool, known limitations or areas for improvement, and future work to be done. (shrink)

Background: Depressive disorder is one of the main health problems worldwide. Many risk factors have been associated with this pathology. However, while the association between risks factors and adult depression is well established, the mechanisms behind its impact remains poorly understood. A possible, yet untested explanation is the mediating impact of levels of personality functioning, i.e., impairments with regard to self and interpersonal.Method: Around 162 patients were assessed at the beginning of their therapy, with regard to risk factors, such (...) as sociodemographic, physical, hereditary, and adverse childhood experiences. Depressive symptoms and personality functioning were also measured. Associations between the related variables as well as other possible covariates were examined by means of zero-order correlations and bootstrapping-based mediation analysis.Results: Of all the risk factors taken into account, level of education and physical illness were associated with depression. On the other hand, the most significant predictor of depressive symptomatology was ACE, and this relationship was mediated by personality functioning. This indicates that patients presenting adverse childhood experiences are more likely to develop deficiencies in personality functioning, which in turn increases their likelihood of developing depressive symptomatology.Conclusion: These results reaffirm the importance of incorporating risk and vulnerability factors such as personality functioning in understanding depression. (shrink)

Discussion of moral explanation has reached an impasse, with proponents of contemporary ethical naturalism upholding the explanatory integrity of moral facts and properties, and opponents--including both antirealists and non-naturalistic realists--insisting that such robustly explanatory pretensions as moral theory has be explained away. I propose that the key to solving the problem lies in the question whether instances of moral properties are causally efficacious. It is argued that, given the truth of contemporary ethical naturalism, moral (...) properties are causally efficacious if the properties of the special sciences are. (shrink)

Cornell realists maintain that irreducible moral properties have earned a place in our ontology in virtue of the indispensable role they play in a variety of explanations. These explanations can be divided into two groups: those that employ thin ethical concepts and those that employ thick ethical concepts. Recent work on thick concepts suggests that they are not inherently evaluative in their meaning. If correct, this creates problems for the moral explanations of Cornell realists, since the most persuasive (...) moral explanations are those that employ thick concepts. If thick concepts are not inherently evaluative, then the most plausible explanations on offer cannot support Cornell realism. Moral explanations employing thin concepts, however, are too flimsy to support the view. Unless proponents can develop a compelling story about thick concepts or thin explanations, Cornell realism is in trouble. (shrink)

Gilbert Harman and Judith Thomson have argued that moral facts cannot explain our moral beliefs, claiming that such facts could not play a causal role in the formation of those beliefs. This paper shows these arguments to be misguided, for they would require that we abandon any number of intuitively plausible explanations in non‐moral contexts as well. But abandoning the causal strand in the argument over moral explanations does not spell immediate victory for the moral (...) realist, since it must still be shown that moral facts do figure in our best global explanatory theory. (shrink)

Discussion of moral explanation has reached animpasse, with proponents of contemporaryethical naturalism upholding the explanatoryintegrity of moral facts and properties, andopponents – including both anti-realists andnon-naturalistic realists – insisting thatsuch robustly explanatory pretensions as moraltheory has be explained away. I propose thatthe key to solving the problem lies in thequestion whether instances of moral propertiesare causally efficacious. It is argued that,given the truth of contemporary ethicalnaturalism, moral properties are causallyefficacious if the properties of the specialsciences (...) are. Certain objections are rebuttedinvolving the nature of causation, on the onehand, and putative special features of themoral realm, on the other. (shrink)

What is the real issue at stake in discussions of "moral explanation"? There isn't one; there are many. The standing of purported moral properties and problems about our epistemic or semantic access to them are of concern both from within and without moral practice. An account of their potential contribution to explaining our values, beliefs, conduct, practices, etc. can help in these respects. By examining some claims made about moral explanation in Judith Thompson's and (...) Gilbert Harman's Moral Relativism and Moral Objectivity, I try to suggest a worthwhile account of this potential explanatory contribution. (shrink)

Abstract“The wrongness of Albert's action causally explains why Jane judged that his action was wrong”. This type of causal moral explanation has been extensively discussed in the recent metaethical literature. This paper motivates the following claims about this type of moral explanation. First, a typical defence of this type of moral explanation suggested in the literature does not work because it predicts inaccurate modal information. Second, focusing on different aspects of the ways moral (...) judgements are generated provides better chances for the defender of this type of moral explanation. Third, the strategy mentioned in the previous point leads us to the following alternative evaluative explanation: The property of being a harmful action explains a recognisable pattern of moral judgements observed in the relevant empirical studies. One crucial implication the paper alludes to is a localist approach to the debates concerning moral realism: We should consider each moral property's ontological genuineness separately, referring to specific empirical findings that are particularly relevant to the target moral property in question. Such a localist approach can provide solid resources for realists to respond to various anti‐realist challenges, such as an influential evolutionary debunking argument. (shrink)

"The arc of the moral universe is long but it bends towards justice." (Martin Luther King) -/- A moral explanation is an explanation of a particular or type of event (or fact or state of affairs) that features moral terms in the explaining phrase. Here are some examples. First, one way of the above quote is as the claim that, in the broad sweep of history, societies tend toward more just institutions, and that they do (...) so precisely because these institutions are just. This is a moral explanation of social development. Second, historians might claim that “The injustice of slavery contributed to its demise”: this is a moral explanation of a historical event. Third, I might say that “I believe that Hitler was morally depraved because he was morally depraved”: this is a moral explanation of a moral belief. Finally, philosophers sometimes say things like “In the original Trolley case, it is morally right to flick the switch, because this will lead to the morally best outcome”: this is a moral explanation of a particular moral fact. -/- The issue of the availability of moral explanations of these types is relevant to both normative ethics and metaethics. In normative ethics the availability of moral explanations is bound up with the possibility of general normative theories. In metaethics the issue of moral explanations is closely tied to the doctrine of moral realism. In what follows I first trace the relevance of moral explanations to normative ethics and metaethics, before considering some examples in detail. (shrink)

Gilbert Harman and Judith Thomson have argued that moral facts cannot explain our moral beliefs, claiming that such facts could not play a causal role in the formation of those beliefs. This paper shows these arguments to be misguided, for they would require that we abandon any number of intuitively plausible explanations in non-moral contexts as well. But abandoning the causal strand in the argument over moral explanations does not spell immediate victory for the moral (...) realist, since it must still be shown that moral facts do figure in our best global explanatory theory. (shrink)

Nicholas Sturgeon has claimed that moral explanations constitute one area of disagreement between moral realists and noncognitivists. He claims that the correctness of such explanation is consistent with moral realism but not with noncognitivism. Does this difference characterize all other anti-realist views. This paper argues that it does not. Moral relativism is a distinct anti-realist view. And the correctness of moral explanation is consistent with moral relativism.

A familiar claim, meant as a challenge to moral knowledge, is that we can credibly accept putative moral facts just in case they explain natural facts. This paper critically addresses Elizabeth Tropman’s response to a version of that claim. Her response has interest partly because it falls within, and extends, an influential philosophical tradition – that of trying to expose (some) skeptical challenges as spurious or ill-conceived. Also, Tropman’s target is not just any version of the claim just (...) mentioned. It is Gilbert Harman’s classic version, according to which putative moral facts must earn credibility by explaining the formation of moral beliefs. This version has wide influence, and variations of it can arise in many areas. Tropman’s response is thus well worth attention. (shrink)

In a recent paper Nicholas Sturgeon claims moral explanations constitute one area of disagreement between moral realists and noncognitivists. The correctness of such explanation is consistent with moral realism but not with noncognitivism. Does this difference characterize other anti-realist views? I argue that it does not. Moral relativism is a distinct anti-realist view. And the correctness of moral explanations is consistent with moral relativism.

It’s commonly held that particular moral facts are explained by ‘natural’ or ‘descriptive’ facts, though there’s disagreement over how such explanations work. We defend the view that general moral principles also play a role in explaining particular moral facts. More specifically, we argue that this view best makes sense of some intuitive data points, including the supervenience of the moral upon the natural. We consider two alternative accounts of the nature and structure of moral principles—’the (...) nomic view’ and ‘moral platonism’—before considering in what sense such principles obtain of necessity. (shrink)

Moral philosophers are, among other things, in the business of constructing moral theories. And moral theories are, among other things, supposed to explain moral phenomena. Consequently, one’s views about the nature of moral explanation will influence the kinds of moral theories one is willing to countenance. Many moral philosophers are (explicitly or implicitly) committed to a deductive model of explanation. As I see it, this commitment lies at the heart of the (...) current debate between moral particularists and moral generalists. In this paper I argue that we have good reasons to give up this commitment. In fact, I show that an examination of the literature on scientific explanation reveals that we are used to, and comfortable with, non-deductive explanations in almost all areas of inquiry. As a result, I argue that we have reason to believe that moral explanations need not be grounded in exceptionless moral principles. (shrink)

There are two putative disanalogies between moral explanations and other sorts of higher-order explanations. First, moral properties epistemically depend on their non-normative base properties. Some might thus argue that the explanatory role of moral properties entirely derive from the role of non-normative base properties. Second, moral explanations seem to be characteristically mediated by our moral beliefs, attitudes, and sensibilities, etc., in a way in which most higher-order explanations are not. It could thus be argued that (...) alleged moral explanations are just an elliptical form of psychological explanation. These arguments against moral explanation don’t seem to challenge many other kinds of higher-order explanations. In my paper, I attempt to show that the two putative disanalogies do not in the end raise serious challenges to the explanatory efficacy of the moral. In doing so, I appeal to a unificationist account of explanation to vindicate the explanatory efficacy of moral properties. I argue that moral facts or properties can have explanatory power due to their distinctive unifying role (even if they are irreducible to non-normative properties). (shrink)

It has seemed, to many, that there is an important connection between the ways in which some theoretical posits explain our observations, and our reasons for being ontologically committed to those posits. One way to spell out this connection is in terms of what has become known as the explanatory criterion of ontological commitment. This is, roughly, the view that we ought to posit only those entities that are indispensable to our best explanations. Our primary aim is to argue that (...) the moral nonnaturalist places herself in an invidious position if she simply accepts that the nonnatural moral facts that she posits are not explanatory. Instead, we offer the nonnaturalist an alternative strategy for dealing with moral explanations. The strategy is to retain the explanatory criterion of ontological commitment and maintain that moral properties are, in fact, explanatory. The explanations they provide are not causal explanations; instead, moral properties make a non-causal difference to the physical facts. (shrink)

In the first chapter of The Nature of Morality (1977), Gilbert Harman sets out what he takes to be the “basic issue” confronting moral philosophy: whether moral principles can be “tested and confirmed in the way that scientific principles can... out in the world” (3–4). Harman argues that they can’t be. In this paper I argue that if we reject the Harmanian view that confirmation is the converse of explanation, then we can agree with the naturalist realist (...) on the basic epistemological issue of whether moral principles can be tested and confirmed in the way that scientific principles can. But I argue that there nevertheless is an important metaphysical way in which moral explanations differ from certain kinds of non-moral explanations. An upshot is that even realists who think that moral facts are necessary, causally inefficacious, and knowable a priori can agree that moral claims are subject to empirical confirmation in the way that scientific claims are. (shrink)

Some moral realists claim that moral facts are a species of natural fact, amenable to scientific investigation. They argue that these moral facts are needed in the best explanations of certain phenomena and that this is evidence that they are real. In this paper I present part of a biological account of the function of morality. The account allows the identification of a plausible natural kind that could play the explanatory role that a moral kind would (...) play in naturalist realist theories. It is therefore a candidate for being the moral kind. I argue, however, that it will underdetermine the morally good, that is, identifying the kind is not sufficient to identify what is good. Hence this is not a natural moral kind. Its explanatory usefulness, however, means that we do not have to postulate any further (moral) facts to provide moral explanations. Hence there is no reason to believe that there are any natural moral kinds. (shrink)

The challenge of Gilbert Harman that there are no moral facts is robust, to an extent extreme and counts most for the realists underline moral facts and moral explanations. The paper begins with the absorbing challenge posed by Harman that ends in some sort of skepticism. After a brief exposition of nature of moral facts, the paper focuses on another interesting squabble whether or not we conceive of serious moral explanation that bridges the gap (...) between theories/ principles, and our moral observations. In a separate section it has been shown that moral explanations are far too necessary for moral facts because moral facts need to have explanatory potency. Moral facts need to explain our observations of moral phenomena. The contentious issue has been addressed remarkably well by Nicholas Sturgeon and Brad Majors. I have a suggestion that cogency of ideas of moral facts and moral explanations depend among other things, on the conception of possible worlds. (shrink)

One influential positive argument for moral realism is the Explanatory Indispensability Argument. A crucial premise of this argument is the explanatory relevance of moral properties. On this premise, moral properties, such as wrongness, rightness, courage, and cowardice, are explanatorily indispensable to some empirical phenomena. Although there has been a lively debate on this premise, one crucial challenge to this thesis, what I call the Scientific Standard Challenge, has not been properly discussed. After explaining this challenge and a (...) related concern, I argue that in response to this central challenge, the proponents of the argument should take what I call the localist turn to defend the explanatory indispensability of moral properties. The localist turn encourages the defenders of moral explanations to be more sensitive to the nature of each moral explanation. For instance, some moral explanations are explanations of social matters, so the standards they need to meet are provided by relevant branches of the social sciences. On the other hand, some other moral explanations are about our psychology, so the theoretical standards those explanations need to meet should come from psychology. I illustrate how this localist project can be conducted in the case of the moral explanation that appeals to injustice. I argue that the field of comparative politics provides the theoretical standards moral explanations of institutional change need to meet. I shall then illustrate how a sophisticated moral explanation can meet those theoretical standards and how this moral explanation can be strong evidence of injustice’s explanatory indispensability. (shrink)

There are obvious grounds for the conjunction anthropology and ethics, proposed as the Monist topic. When philosophers teach or write ethics, material from alien ways of life illuminates and enriches the discussion, and sometimes helps chasten the urge to elevate local practises into universal principles. The question might then be raised: to what extent do anthropological discoveries affect the status and theories about the status of moral principles? The answer will affirm or take issue with that vaguely defined view, (...) cultural relativism. (shrink)

Many philosophers insist that moral facts or properties play no role in explaining (non-normative) natural phenomena. The problem of moral explanation has raised metaphysical, semantic and epistemic challenges to contemporary moral realism. In my dissertation, I attempt to vindicate the explanatory efficacy of moral properties, while at the same time respecting the autonomy and normativity of morality. In doing so, I will advocate a sort of non-reductive ethical naturalism, according to which moral properties are (...) natural properties (in the sense that they are open to empirical investigation), and yet remain irreducible to non-normative natural properties, such as psychological, biological, and sociological properties. More specifically, I develop a form of moral functionalism to vindicate moral explanation. Moral functionalism understands moral properties as second-order, functional properties, the natures of which are characterized in terms of functional roles. My version of moral functionalism has two particular features. First, it is a form of a posteriori moral functionalism. The moral theory used to characterize the functional roles of moral properties can only be discovered by appeal to empirical investigation (for this reason, my a posteriori version of moral functionalism is a sort of ethical naturalism). Second, it is a holistic version of moral functionalism. The functional role of a moral property cannot be identified solely in terms of non-normative properties; rather, it essentially involves a network of connections to both non-normative and normative properties (for this reason, my holistic version of moral functionalism is a sort of ethical anti-reductionism). It is important to note that the question of whether moral properties have explanatory power bears on the question of what explanation or explanatoriness is. In my dissertation, I attempt to show that my vindication of moral explanation presupposes a plausible account of explanation. Obviously I cannot discuss all theories of explanation; my dissertation will rather focus on two influential accounts of explanation: the causalist model and the unificationist model. Then I argue that moral properties understood as functional properties of the kind I have described can do causal-explanatory work and play a distinctive unifying role. (shrink)

Deontic buck-passing aims to analyse deontic properties of acts in terms of reasons. Many authors accept deontic buck-passing, but only few have discussed how to understand the relation between reasons and deontic properties exactly. Justin Snedegar has suggested understanding deontic properties of acts in terms of both reasons and reasons to require: A is required to φ iff A has most reason to φ, and there is most reason to require A to φ. This promising proposal faces two open questions: (...) the question of why there can only be most reason to require A to φ if A has most reason to φ, and the question of what role agent-relative reasons play in generating requirements. In this paper, I address these questions and argue that the key to answering them is to reject evaluative buck-passing and accept a value-based theory of practical reasons instead. The result is a two-level theory of moral explanation: on the first level, practical reasons are explained in terms of appropriate responses to value; on the second level, deontic properties of acts are explained in terms of reasons: reasons to act as well as reasons to require. (shrink)

Why is there a felt asymmetry between cases in which agents defer to testifiers for certain moral beliefs, and cases in which agents defer on many other matters? One explanation influential in the literature is that having understanding of a proposition is both in tension with acquiring belief in the proposition by deferring to another's testimony and distinctively important when it comes to moral propositions, as compared with what we might think of as many ‘garden variety’ facts. (...) My project in this paper is to offer a new and more defensible version of this explanation. This will involve re-conceiving understanding as a richer state than it is commonly thought to be, requiring affective and motivational engagement with reasons as well as cognitive facility. I also offer a new explanation of the tension between understanding and deference to testimony. (shrink)

P.F. Strawson’s (1962) “Freedom and Resentment” has provoked a wide range of responses, both positive and negative, and an equally wide range of interpretations. In particular, beginning with Gary Watson, some have seen Strawson as suggesting a point about the “order of explanation” concerning moral responsibility: it is not that it is appropriate to hold agents responsible because they are morally responsible, rather, it is ... well, something else. Such claims are often developed in different ways, but one (...) thing remains constant: they meant to be incompatible with libertarian theories of moral responsibility. The overarching theme of this paper is that extant developments of “the reversal” face a dilemma: in order to make the proposals plausibly anti-libertarian, they must be made to be implausible on other grounds. I canvas different attempts to articulate a “Strawsonian reversal”, and argue that none is fit for the purposes for which it is intended. I conclude by suggesting a way of clarifying the intended thesis: an analogy with the concept of funniness. The result: proponents of the “reversal” need to accept the difficult result that if we blamed small children, they would be blameworthy, or instead explain how their view escapes this result, while still being a view on which our blaming practices “fix the facts” of moral responsibility. (shrink)

Do moral properties figure in the best explanatory account of the world? According to a popular realist argument, if they do, then they earn their ontological rights, for only properties that figure in the best explanation of experience are real properties. Although this realist strategy has been widely influential—not just in metaethics, but also in philosophy of mind and philosophy of science—no one has actually made the case that moral realism requires: namely, that moral facts really (...) will figure in the best explanatory picture of the world. This issue may have been neglected in part because the influential dialectic on moral explanations between philosophers Gilbert Harman and Nicholas Sturgeon has focused debate on whether moral facts figure in relevant explanations. Yet as others have noted, explanatory relevance is irrelevant when it comes to realism: after all, according to the popular realist argument, it is inference to the best explanation of experience that is supposed to confer ontological rights. I propose to ask, then, the relevant question about moral explanations: should we think that moral properties will figure in the best explanatory account of the world? (shrink)

This paper examines the status of explanation in the natural sciences and ethics by focusing on the important role of empirical evidence and theoretical properties. As a means of exploring these issues, the debate between Nicholas Sturgeon and Gilbert Harman will serve as a central point in the discussion, since Sturgeon has provided several arguments against Harman's attempt to draw a distinction between scientific and moral explanation. Specifically, Sturgeon holds that the special function of observation and testing, (...) which we commonly believe to be relevant only in science, can be applied to moral cases with equal justification. Overall, Sturgeon's arguments will be exposed as deficient in several respects, which is an aspect of this debate often overlooked. (shrink)

Does God's existence make a difference to how we explain morality? Mark C. Murphy critiques the two dominant theistic accounts of morality--natural law theory and divine command theory--and presents a novel third view. He argues that we can value natural facts about humans and their good, while keeping God at the centre of our moral explanations.

I address Andrew Moon's recent discussion (2016, this journal) of the question whether third-factor accounts are valid responses to debunking arguments against moral realism. Moon argues that third-factor responses are valid under certain conditions but leaves open whether moral realists can use his interpretation of the third-factor response to defuse the evolutionary debunking challenge. I rebut Moon's claim and answer his question. Moon's third-factor reply is valid only if we accept externalism about epistemic defeaters. However, even if we (...) do, I argue, the conditions Moon identifies for a valid third-factor response are not met in the case of moral realism. (shrink)

Frank Jackson, Philip Pettit, and Michael Smith have been at the forefront of philosophy in Australia for much of the last two decades, and their collaborative work has had widespread influence throughout the world. Mind, Morality, and Explanation collects the best of that work in a single volume, showcasing their seminal contributions to philosophical psychology, the theory of psychological and social explanation, moral theory, and moral psychology.

Recently, there has been some excitement about the potential explanatory payoffs the newish metaphysical notion of grounding seems to have for metaethical non-naturalism. There has also been a recent upsurge in the debate about whether non-naturalism is implausibly committed to some acts being wrong because of some sui generis piece of ontology. It has, in response, been claimed that once we have a clear enough picture of the grounding role of moral laws on non-naturalism, this is not (objectionably) so. (...) This move, I argue, is inconsistent with certain constraints on what non-naturalist-friendly moral laws must be for them to do the explanatory work non-naturalism requires of them elsewhere. In other words, there is tension between the grounding reply to the supervenience objection and the grounding structure implied by some responses to the normative objection. (shrink)

In chapter 8 of Miller 2003, I argued against the idea that Jackson and Pettit's notion of program explanation might help Sturgeon's non-reductive naturalist version of moral realism respond to the explanatory challenge posed by Harman. In a recent paper in the AJP[Nelson 2006, Mark Nelson has attempted to defend the idea that program explanation might prove useful to Sturgeon in replying to Harman. In this note, I suggest that Nelson's argument fails.

Objective chance and morality are rarely discussed together. In this paper, I argue that there is a surprising similarity in the epistemic standing of our beliefs about both objective chance and objective morality. The key similarity is that both of these sorts of belief are undermined -- in a limited, but important way -- by plausible genealogical accounts of the concepts that feature in these beliefs. The paper presents a brief account of Richard Joyce's evolutionary hypothesis of the genealogy of (...) morality, and refines the debunking argument which he consequently mounts against moral beliefs. The evolutionary hypothesis in question suggests that we could easily have failed to believe that moral judgments have a peculiarly categorical force. This aspect of our moral belief, then, is unreliable. The paper then turns to chance, and presents a more speculative hypothesis about the cultural evolution of ideas about chance, as a peculiarly physical and objective form of probability. It is argued that, in the same way that our beliefs about morality could easily have lacked the commitment to inescapable force, our beliefs about chance could easily have lacked various idiosyncratic commitments. By a similar argument then, these aspects of our chance beliefs are unreliable. In the final section of the paper, I review some recent objections to genealogical debunking arguments, due to Roger White and Guy Kahane, showing how the form of argument developed in this paper is immune to these criticisms. (shrink)