Kevin McCain’s Evidentialism and Epistemic Justification is the most thorough defense of evidentialism to date. In this work, McCain proposes insightful new theses to fill in underdeveloped parts of evidentialism. One of these new theses is an explanationist account of evidential fit that appeals to dispositional properties. We argue that this explanationist account faces counterexamples, and that, more generally, explanationists should not understand evidential fit in terms of dispositional properties.

This paper presents an information-based logic that is applied to the analysis of entailment, implicature and presupposition in natural language. The logic is very fine-grained and is able to make distinctions that are outside the scope of classical logic. It is independently motivated by certain properties of natural human reasoning, namely partiality, paraconsistency, relevance, and defeasibility: once these are accounted for, the data on implicature and presupposition comes quite naturally.The logic is based on the family of semantic spaces known as (...) bilattices, originally proposed by Ginsberg (1988), and used extensively by Fitting (1989, 1992). Specifically, the logic is based on a subset of bilattices that I call evidential bilattices, constructed as the Cartesian product of certain algebras with themselves. The specific details of the epistemic agent approach of the logical system is derived from the work of Belnap (1975, 1977), augmented by the use of evidential links for inferencing. An important property of the system is that it has been implemented using an extension of Fitting's work on bilattice logic programming (1989, 1991) to build a model-based inference engine for the augmented Belnap logic. This theorem prover is very efficient for a reasonably wide range of inferences. (shrink)

Evidential pluralists, like Federica Russo and Jon Williamson, argue that causal claims should be corroborated by establishing both the existence of a suitable correlation and a suitable mechanism complex. At first glance, this fits well with mixed method research in the social sciences, which often involves a pluralist combination of statistical and mechanistic evidence. However, statistical evidence concerns a population of cases, while mechanistic evidence is found in individual case studies. How should researchers combine such general statistical evidence and (...) specific mechanistic evidence? This article discusses a very recent answer to this question, ‘multi-method large-N qualitative analysis’ or multi-method LNQA, popular in political science and international relations studies of rare events like democratic transitions and cease-fire agreements. Multi-method LNQA combines a comprehensive study of all relevant event cases with statistical analysis, in an attempt to solve the issues of generalization faced by other types of qualitative research, such as selection bias and lack of representativeness. I will argue that the kind of general causal claim that multi-method LNQA is after, however, is crucially different from the average treatment effect found in statistical analysis and can in fact only be supported with mechanistic evidence. I conclude from this that mixed method research, and thereby evidential pluralism, may be inappropriate in this context. (shrink)

Sceptical arguments in epistemology typically employ sceptical hypotheses, which are rivals to our everyday beliefs so constructed that they fit exactly the evidence on which those beliefs are based. There are two ways of using a sceptical hypothesis to undermine an everyday belief, giving rise to two distinct sorts of sceptical argument: underdetermination‐based and closure‐based. However, both sorts of argument, as usually formulated in the literature, fall foul of evidential holism, for they ignore the crucial role of background beliefs. (...) An analogy with the philosophy of science makes this point explicit. There is no simple way to “holism proof” the two sceptical arguments. (shrink)

Molecular methods have revolutionised virtually every area of biology, and metazoan phylogenetics is no exception: molecular phylogenies, molecular clocks, comparative phylogenomics, and developmental genetics have generated a plethora of molecular data spanning numerous taxa and collectively transformed our understanding of the evolutionary history of animals, often corroborating but at times opposing results of more traditional approaches. Moreover, the diversity of methods and models within molecular phylogenetics has resulted in significant disagreement among molecular phylogenies as well as between these and earlier (...) phylogenies. How should this broad and multifaceted problem be tackled? I argue that the answer lies in integrating evidence to infer the best evolutionary scenario. I begin with an overview of recent development in early metazoan phylogenetics, followed by a discussion of key conceptual issues in phylogenetics revolving around phylogenetic evidence, theory, methodology, and interrelations thereof. I then argue that the integration of different kinds of evidence is necessary for arriving at the best evolutionary scenario rather than merely the best-fitting cladogram. Finally, I discuss the prospects of this view in stimulating interdisciplinary cross-talk in early metazoan research and beyond, and challenges that need to be overcome. (shrink)

Cross-cultural differences in argumentation may be explained by the use of different norms of reasoning. However, some norms derive from, presumably universal, mathematical laws. This inconsistency can be resolved, by considering that some norms of argumentation, like Bayes theorem, are mathematical functions. Systematic variation in the inputs may produce culture-dependent inductive biases although the function remains invariant. This hypothesis was tested by fitting a Bayesian model to data on informal argumentation from Turkish and English cultures, which linguistically mark evidence quality (...) differently. The experiment varied evidential marking and informant reliability in argumentative dialogues and revealed cross-cultural differences for both independent variables. The Bayesian model fitted the data from both cultures well but there were differences in the parameters consistent with culture-specific inductive biases. These findings are related to current controversies over the universality of the norms of reasoning and the role of normative theories in the psychology of reasoning. (shrink)

According to evidentialism, a belief is propositionally justified just in case it fits one’s evidence. A fully developed evidentialist theory of justification will require an account of the evidential fit relation. Some evidentialists have embraced an explanationist account of this relation. Some of these accounts, such as Kevin McCain’s, place an awareness requirement on evidential fit. That is, they claim that a proposition, p, fits a subject’s evidence, e, only if the subject is aware of the explanatory connection (...) between p and e. I argue by way of example that this version of explanationism fails. As a result, I suggest a friendly revision of explanationism that excludes an awareness condition. Finally, I field some objections to my version of explanationism. (shrink)

This paper aims to neutralize Draper-style evidential arguments from evil by defending five theses: (1) that, when those who advance these arguments use the word “evil,” they are referring, at least in large part, to ill-being; (2) that well-being and ill-being come as a pair (i.e., are essentially related); (3) that well-being and ill-being are best understood in an at least partly objectivist way; (4) that (even partial) objectivism about well-being and ill-being is best understood as implying non-naturalism about (...) well-being and ill-being; and (5) that the truth of non-naturalism about well-being and ill-being does not fit cleanly with naturalism and, in fact, fits at least as well with theism as it does with naturalism. (shrink)

It is plausible that Newcomb problems in which causal maximizers and evidential maximizers would do different things would not be possible for ideal maximizers who are attentive to metatickles. An objection to Eells’s first argument for this makes welcome a second. Against it I argue that even ideal evidential and causal maximizers would do different things in some non-dominance Newcomb problems; and that they would hope for different things in some third-person and non-action problems, which is relevant if (...) a good theory of rational choices of acts should fit smoothly into a good theory of rational desires for facts. (shrink)

In this chapter, the author regards reliabilism as one of the major achievements of twentieth century philosophy and Alvin Goldman as one of the chief architects of this important theory. It focuses on three related issues in Goldman's epistemology. Goldman has recently been making friendly overtures toward evidentialist epistemologies, and although the author agrees that reliabilism needs some kind of evidentialist element. More specifically, the author think he concedes too much to the evidentialist. In particular, he concedes: that a great (...) many beliefs cannot be justified without evidence, in particular, that some beliefs require nondoxastic evidence; that evidential fit can be understood in non‐process‐reliabilist terms, and that the aforementioned or some similar understanding of evidential fit makes sense of propositional, or ex ante, justification. Goldman has never lost sight of the epistemic significance of ways of coming to believe, and he is well aware of the differences between process reliabilism and indicator reliabilism. (shrink)

The number of adjustable parameters in a model or hypothesis is often taken as the formal expression of its simplicity. I take issue with this `definition´ and argue that comparative simplicity has a quasi-empirical measure, reflecting experts’ judgements who track past use of a model-type in or across domains. Since models are represented by restricted sets of functions in a suitable space, formally speaking, a general `measure of simplicity´ may be defined implicitly for the elements of a function space. This (...) paper sketches such a framework starting from intuitive constraints. It is shown how experts’ judgements feed into this framework and how the usual definition can be recovered. A theorem by H. Akaike in the theory of model-choice has recently been used to shine new light on the relationship between the demand for simplicity and empirical success, or even `truth´. The approach favored here permits an alternative answer based on a reliabilist account of justification: if judgements of simplicity track past successful use of a model-type comparative simplicity is evidential and inductive. (shrink)

Goldman, though still a reliabilist, has made some recent concessions to evidentialist epistemologies. I agree that reliabilism is most plausible when it incorporates certain evidentialist elements, but I try to minimize the evidentialist component. I argue that fewer beliefs require evidence than Goldman thinks, that Goldman should construe evidential fit in process reliabilist terms, rather than the way he does, and that this process reliabilist understanding of evidence illuminates such important epistemological concepts as propositional justification, ex ante justification, and (...) defeat. (shrink)

Evidentialism has shown itself to be an important research program in contemporary epistemology, with evidentialists giving theories of virtually every important topic in epistemology. Nevertheless, at the heart of evidentialism is a handful of concepts, namely evidence, evidence possession, and evidential fit. If evidentialists cannot give us a plausible account of these concepts, then their research program, with all its various theories, will be in serious trouble. In this paper, I argue that evidentialists has yet to give a plausible (...) account of evidence possession and the prospects for doing so are dim. (shrink)

An evidentialist can be extreme about epistemic requirements in a couple of different ways. At the reductionist end of the spectrum are those who think our epistemic obligations are fully satisfied by the mere having of evidential fit—where having implies nothing about doing. Your beliefs ought to align with your evidence, in other words, but there’s nothing you’re obligated to do in order to get yourself into the epistemically optimal position. At the expansionist end of the spectrum are those (...) who think we ought to do more—epistemically-speaking—than just bring about a state of evidential fit. We ought to get more evidence, for instance, if it’s somehow relevant to our beliefs. Rather leery of extremists, we prefer a moderate account of epistemic obligation. It’s a conjunction of three theses: (1) We never have an epistemic duty to believe any particular proposition; (2) We’re epistemically obligated to reflect on our evidence in order to produce a state of evidential fit; (3) We’re never epistemically obligated to acquire any additional evidence. Our aim is to make these plausible. (shrink)

Intuitions are funny things. Intuitions would seem to be these fluid, temporary mental states that we form minute by minute. On the face of it, they would seem to have no real value. But, when we ask whether a particular theory is true, we usually turn to our intuitions. This is nowhere more prevalent than in moral theorizing. When we attempt to show that a particular moral theory is mistaken, we usually present cases that yield counterintuitive results for the theory. (...) For example, take the famous Trolley Car example. Suppose a trolley car is traveling down a steep street and is heading straight for a child. Suppose further that you have the means to push a button that will divert the trolley car to a different track thereby missing the child. But, if you push the button to save the one child, you will kill five other children standing on the other track to which the trolley car will be diverted. So the choice is do not push the button and let one child die, or push the button, saving, the one child, but killing five other children. What do you do? Such cases are common in moral theorizing and our intuitions concerning what we would do in such cases are usually taken as evidence for or against a moral theory. In the trolley car case, a utilitarian would say, ceteris paribus, you should not push the button diverting the trolley car. Since an action is morally right if and only if it produces more net good (say, pleasure), diverting the trolley car would result in more pain in the world and hence be the wrong action. But how do our intuitions evidentially fit into the case? Since our goal is to have a moral theory that coincides with our intuitions about cases, if our intuitions fit with the theory, then we have prima facie evidence for the theory. If our intuitions do not fit, then we have prima facie evidence against the theory. Concerning the trolley car case, if our intuitions are that we should not push the button, thus letting the single child die, then our intuitions count as evidence for the correctness of utilitarian moral theory. If we do not share the intuitions of the utilitarians, then it is said to count as evidence against the correctness of utilitarian moral theory. Thus, it is our intuitions that carry the evidential burden. Since most agents take their intuitions to have significant evidential weight, cases (such as the Trolley Car case) usually indicate something problematic with the theory in question. Yet, there has been considerable interest lately in the status of such a practice. This interest has in part surrounded the issue of whether the cases themselves pose a problem for moral theorizing. Such cases are sometimes called intuition pumps. These thought experiment-style cases are usually taken to elicit intuitions that count for or against a moral theory. But many have claimed that the reliance upon such intuition pumps in moral theorizing is unjustified. In this paper I will investigate this claim. First, I lay out what I take to be the problem of intuition pumps. In particular, the problem will surround (1) there always being the possibility of constructing new cases that “pump” people’s intuitions to the other side of a moral debate and (2) there being systematic and patterned disagreement as to what the “correct” intuitive response for a given case is. Next, I give an account of the structure and evidence-conferring status of intuitions. Then, given this account, I illustrate how we can and why we should appeal to the intuitions of experts to solve the problem of intuition pumps. Thus, I hope to show that the problem of intuition pumps is not a problem for moral theorizing. That is, the use of intuition pump-style cases in moral theorizing is prima facie justified. (shrink)

A further reply to Trent Dougherty, author of Evidentialism and its Discontents, on a range of issues that evidentialists like Dougherty and Feldman, and pragmatists like myself have very different views about. These issues include a regarding a proper understanding of epistemic normativity and its relationship with doxastic responsibility. Pragmatists and virtue theorists are champions of the diachronic. The norms which should advise our ethics of belief are primarily diachronic; neither is the diachronic irrelevant to analysis of knowledge (which would (...) be to neglect the causal etiology of belief). My reply tries to articulate the relative importance of synchronic and diachronic concerns with epistemic agency, both with respect to well-founded belief, as with respect to the ‘ethics of belief’ and ‘epistemology of disagreement,’ both concerned with giving guidance. Inquiry itself is diachronic, and epistemology on the pragmatist and virtue theoretical approaches in the theory of inquiry. Thus I reiterate that the reduction of epistemic normativity to synchronic evidential fit shows the inadequacy of Dougherty's (and of Conee and Feldman's) account and the need to move from internalist evidentialism to virtue responsibilism. (shrink)

Many epistemologists are enamored with a defeat condition on knowledge. In this paper we present some implementation problems for defeatism, understood along either internalist or externalist lines. We then propose that one who accepts a knowledge norm of belief, according to which one ought to believe only what one knows, can explain away much of the motivation for defeatism. This is an important result, because on the one hand it respects the plausibility of the intuitions about defeat shared by many (...) in epistemology; but on the other hand, it obviates the need to provide a unified account of defeat which plays well with the most plausible views of how knowledge fits with evidential probability. (shrink)

Fundamental physics makes no clear use of causal notions; it uses laws that operate in relevant respects in both temporal directions and that relate whole systems across times. But by relating causation to evidence, we can explain how causation fits in to a physical picture of the world and explain its temporal asymmetry. This paper takes up a deliberative approach to causation, according to which causal relations correspond to the evidential relations we need when we decide on one thing (...) in order to achieve another. Tamsin's taking her umbrella is a cause of her staying dry, for example, if and only if her deciding to take her umbrella for the sake of staying dry is adequate grounds for believing she'll stay dry. This correspondence explains why causation matters: knowledge of causal structure helps us make decisions that are evidence of outcomes we seek. The account also explains why we can control the future and not the past, and why causes come before their effects. When agents properly deliberate, their decisions can never count as evidence for any outcomes they may seek in the past. From this it follows that causal relations don't run backwards. This deliberative asymmetry is itself traced back to asymmetries of evidence and entropy, providing a new way of deriving causal asymmetry from temporally symmetric laws. (shrink)

Richard Jeffrey is beyond dispute one of the most distinguished and influential philosophers working in the field of decision theory and the theory of knowledge. His work is distinctive in showing the interplay of epistemological concerns with probability and utility theory. Not only has he made use of standard probabilistic and decision theoretic tools to clarify concepts of evidential support and informed choice, he has also proposed significant modifications of the standard Bayesian position in order that it provide a (...) better fit with actual human experience. Probability logic is viewed not as a source of judgment but as a framework for explaining the implications of probabilistic judgments and their mutual compatability. This collection of essays spans a period of some 35 years and includes what have become some of the classic works in the literature. There is also one completely new piece, while in many instances Jeffrey includes afterthoughts on the older essays. (shrink)

In Belief, Inference, and the Self-Conscious Mind (BISCM), Eric Marcus analyses and responds to a core set of puzzles concerning belief and inference. Most centrally on offer are: an explanation of non-evidential/non-observational doxastic self-knowledge, an explanation of the unintelligibility of Moore-Paradoxical statements, an account of inference (built on an interpretation of the ‘Taking Condition’) fit to solve the Lewis Carroll regress, and an account of what constitutes the unity of the rational mind. Marcus’ answers depend on viewing beliefs as (...) essentially self-known and expressible (through asserting their contents (“P”), or avowing them in a self-ascription (“I believe that P”)). Beliefs are also held to (metaphysically) necessarily exclude their contradictories, and (metaphysically) necessitate their implications. Or at least they do in their paradigm form; when they are ‘in mind’ (an important theoretical concept Marcus makes much use of throughout the book. In this paradigmatic form, Marcus terms them judgments. A significant achievement of BISCM is in how, despite the strength of these and other core commitments (theses variously acknowledged to be “very strong”, “wildly unpopular”, and “singularly anachronistic”, Marcus remains utterly clear-eyed about the need to pass the plausibility test. Nowhere, for example, does he lose sight of the fact that we are “distinctively liable to irrationality”, including to self-deception (which is analysed in terms of both belief and the doxastic self-knowledge which essentially accompanies it on Marcus’ view, being ‘out of mind’). A second, and related strength is in the connections Marcus traces between both expressive and rational mental capacities. This is relatively rare in many of the literatures Marcus is engaging with, especially in the first half of the book. Marcus (building on earlier work) shows how such a synthesis can bear serious fruit, not least in his excellent analysis of Moore-Paradoxical unintelligibility. There is a lot one could say about what is exciting and valuable about each element of Marcus’ discussion. And inevitably for a book so bold and full of riches, there is also a lot one might question about these elements. But as Marcus emphasises, what is on offer is “… not a collection of discrete solutions to putatively separate problems [but] a unified conception of the mind in its theoretical orientation”. And what I want to press him on is a big-picture question: what are the boundaries, and what is the internal structure, of the mind's ‘theoretical’ orientation? For, for all the important and detailed work throughout the book, in which a general conception of believing is suggested, tested, refined, and applied, I don't yet have a stable sense of Marcus’ answers to these questions. (shrink)

There was a time when Greco-Roman culture recognized faith as an indispensable social good. More recently, however, the value of faith has been called into question, particularly in connection with religious commitment. What, if anything, is valuable about faith—in the context of ordinary human relations or as a distinctive stance people might take in relation to God? I approach this question by examining the role that faith talk played both in ancient Jewish and Christian communities and in the larger Greco-Roman (...) culture in which Christian faith talk evolved. I locate the value of faith and faithfulness in the context of relationships involving trust and loyalty and argue that what is most distinctively valuable about faith is the function it plays in sustaining relationships through various kinds of challenges, including through evidentially unfavorable circumstances and significant periods of doubt. In light of this discussion, I set out a view of relational faith and, taking Mother Teresa as an exemplar, argue for two further conclusions. First, faith can play the valuable role that it plays in sustaining relationships even without belief of the salient propositions. Second, in at least some circumstances, in order for faith to play this valuable role in a way that does not require epistemic opinions that fail to fit one’s evidence, it is important that faith does not require such belief. (shrink)

The paper addresses the nature of seemings in light of their role in inquiry. Seemings are mental states or events with propositional content that have a specific phenomenology often referred to as “felt truth”. In epistemology, seemings are mainly discussed as possible (non-inferential) justifications for belief. Yet, epistemology has recently taken a zetetic turn, that is, a turn toward the study of inquiry. I will argue that the role of seemings in epistemology should be re-assessed from the perspective of inquiry (...) and deliberation. Seemings may fall short of justifying beliefs, but there is an important role for seemings in the zetetic realm, which may also explain why seemings lack direct justificatory force for beliefs. Seemings, so I will suggest, can provide normative reasons for performing certain zetetic tasks, but they cannot provide normative reasons for making up one’s mind about the inquired question. In this sense, the zetetic role of seemings can be described as guiding rational inquiry. I will suggest that a modified version of the so-called Taking Evidence View about the nature of seemings is best fitted to accommodate their zetetic role. Yet, contra existing versions of the Taking Evidence View, my modified account acknowledges that seemings are genuine experiences (of one’s evidential standing during inquiry) that are accompanied by the characteristic phenomenology of what is called a “feeling of truth”. By doing so, my modified version of the Taking Evidence View incorporates the (as I take it) most important feature of the rival Experience View of seemings. (shrink)

‘How, then, she had asked herself, did one know one thing or another thing about people, sealed as they were?’ So asks Lily Briscoe in To the Lighthouse. It is this question, rather than any concern about pretence or deception, which forms the basis for the philosophical problem of other minds. Responses to this problem have tended to cluster around two solutions: either we know others’ minds through perception; or we know others’ minds through a form of inference. In the (...) first part of this paper I argue that this debate is best understood as concerning the question of whether our knowledge of others’ minds is based on perception or based on evidence. In the second part of the paper I suggest that our ordinary ways of thinking take our knowledge of others’ minds to be both non- evidential and non-perceptual. A satisfactory resolution to the philosophical problem of other minds thus requires us to take seriously the idea that we have a way of knowing about others’ minds which is both non-evidential and non-perceptual. I suggest that our knowledge of others’ minds which is based on their expressions – our expressive knowledge - may fit this bill. (shrink)

Evidentialism as an account of epistemic justification is the position that a doxastic attitude, D, towards a proposition, p, is justified for an intentional agent, S, at a time, t, iff having D towards p fits S’s evidence at t, where the fittingness of an attitude on one’s evidence is typically analyzed in terms of evidential support for the propositional contents of the attitude. Evidentialism is a popular and well-defended account of justification. In this paper, I raise a problem (...) for evidentialism on the grounds that there can be epistemic circumstances in which a proposition is manifestly and nonmisleadingly supported by an agent’s total evidence, and yet believing the proposition is not justified for the agent. As I argue, in order for an agent to have justification to believe a proposition, it needs to be the case that the belief as possessed by the agent could exhibit certain epistemic good making features, e.g., the propositional content of the belief as possessed by the agent would be supported by the agent’s evidence. As I demonstrate, the fact that a proposition, p, is supported by an agent’s total evidence at a time, t, doesn’t guarantee that a belief in p as possessed by the agent at t could exhibit any epistemic good making features, including having propositional contents (i.e., p) that would be supported by the agent’s evidence. Thus, the fact that a proposition is supported by an agent’s evidence doesn’t guarantee that the agent has justification to believe the proposition. (shrink)

Progress in philosophy is difficult to achieve because our methods are evidentially and rhetorically weak. In the last two decades, experimental philosophers have begun to employ the methods of the social sciences to address philosophical questions. However, the adequacy of these methods has been called into question by repeated failures of replication. Experimental philosophers need to incorporate more robust methods to achieve a multi-modal perspective. In this chapter, we describe and showcase cutting-edge methods for data-mining and visualization. Big data is (...) a useful investigatory tool for moral psychology, and it fits well with the Ramsification method the first author advances in a series of recent papers. The guiding insight of these papers is that we can infer the meaning and structure of concepts from patterns of assertions and inferential associations in natural language. (shrink)

Our interest in understanding belief stems partly from our being creatures who think. However, the term ‘belief’ is used to refer to many states: from the fully conscious rational state that partly constitutes knowledge to the fanciful states of alarm clocks. Which of the many ‘belief’ states must a theory of belief be answerable to? This is the scope question. I begin my answer with a reply to a recent argument that belief is invariably weak, i.e., that the evidential (...) standards that are required for belief are low. Although one state we refer to using the term ‘belief’ fits this profile, other ‘belief’ states do not. Crucially, when ‘belief’ is heard in a weak sense, it attributes a state that only a rational creature can be in. I will use this observation as a starting point for an argument that the study of (our) belief should not be constrained by the requirement that the illuminated state be held in common with any non-rational being. This lends support to the Transformative Theory of Rationality, according to which rationality does not merely add powers or complexity to the animal mind, but transforms it into a different kind of mind altogether. (shrink)

When a major engineering product failed, a failure investigation is often conducted to prevent similar failures in the future. In this dissertation, I propose an account of the epistemology and methodology of engineering failure investigations, based on a close examination of the documentations on five major plane crash investigations conducted by the National Transportation Safety Board (NTSB). -/- The dissertation is divided into three parts. The first part consists of the five case studies arranged in chronological order: the American Airlines (...) Flight 191 accident in 1979; the United Flight 232 accident in 1989; the United Flight 585 accident in 1991; the USAir Flight 427 accident in 1994; and the TWA Flight 800 accident in 1996. In each case study, I summarize the entire investigation process, focusing on articulating the questions that arise and the evidential reasoning that helped resolve each question. -/- The second part of the dissertation examines how the investigators infer causes of failure events. The type of causal inference used in failure investigations typically proceeds from effects to causes, hence it is called reverse causal inference. This is in contrast with forward causal inference, where researchers start with an intervention and infer the effects of that intervention. I identify three types of reverse causal inference in engineering failure investigations: feature dependence, additional outcomes, and process tracing. -/- The third part of the dissertation examines how the investigators construct narratives of failure events. At the end of each failure investigation, the investigators come up with a narrative detailing the sequence of events leading to the outcome. This part of the dissertation examines how the investigators construct such narratives and support them with evidence. I argue that both the construction and the justification of a narrative of a failure event depend on the question-and-answer process in the investigation, which I call the question dynamics of the investigation. I examine three main components of the question dynamics: the resolution of questions, the significance of questions, and the arising of questions. I conclude the dissertation with an account of the coherence of narratives, which is a measure of the evidential status of narratives. My account of coherence relies on the question dynamics, and it captures the intuitive idea that the pieces of a coherent narrative “fit together” very well. (shrink)

It is commonly argued that values “fill the logical gap” of underdetermination of theory by evidence, namely, values affect our choice between two or more theories that fit the same evidence. The underdetermination model, however, does not exhaust the roles values play in evidential reasoning. I introduce WAVE – a novel account of the logical relations between values and evidence. WAVE states that values influence evidential reasoning by adjusting evidential weights. I argue that the weight-adjusting role of (...) values is distinct from their underdetermination gap-filling role. Values adjust weights in three ways. First, values affect our trust in the testimony of others. Second, values influence the evidential thresholds required for justified epistemic judgments. Third, values influence the relative weight of a certain type of evidence within a body of multimodal discordant evidence. WAVE explains, from an epistemic perspective, rather than psychological, how smokers, for example, can find the same evidence about the dangers of smoking less persuasive than non-smokers. WAVE allows for a wider effect of values on our accepted scientific theories and beliefs than the effect for which the underdetermination model allows alone; therefore, science studies scholars must consider WAVE in their research and analysis of evidential case studies. (shrink)

The major part of our beliefs and our knowledge of the world is based on, or grounded in, sensory experience. But, how is it that we can have perceptual beliefs that things are thus and so, and, moreover, be justified in having them? What conditions must experience satisfy to rationally warrant, and not merely to cause, our beliefs? Against the currently very popular contention that experience itself already has to be propositionally and conceptually structured, I will rehabilitate the claim that (...) there is given element in experience which is independent of thought and which is possessed of a distinctive nonpropositional and nonconceptual content. Further, I will argue that this given element is indeed fit to play a significant evidential role in the justification of our beliefs about the world. (shrink)

Confirmation theory is the study of the logic by which scientific hypotheses may be confirmed or disconfirmed, or even refuted by evidence. A specific theory of confirmation is a proposal for such a logic. Presumably the epistemic evaluation of scientific hypotheses should largely depend on their empirical content – on what they say the evidentially accessible parts of the world are like, and on the extent to which they turn out to be right about that. Thus, all theories of confirmation (...) rely on measures of how well various alternative hypotheses account for the evidence.1 Most contemporary confirmation theories employ probability functions to provide such a measure. They measure how well the evidence fits what the hypothesis says about the world in terms of how likely it is that the evidence should occur were the hypothesis true. Such hypothesis-based probabilities of evidence claims are called likelihoods. Clearly, when the evidence is more likely according to one hypothesis than according to an alternative, that should redound to the credit of the former hypothesis and the discredit of the later. But various theories of confirmation diverge on precisely how this credit is to be measured? (shrink)

The major part of our beliefs and our knowledge of the world is based on, or grounded in, sensory experience. But, how is it that we can have perceptual beliefs that things are thus and so, and, moreover, be justified in having them? What conditions must experience satisfy to rationally warrant, and not merely to cause, our beliefs? Against the currently very popular contention that experience itself already has to be propositionally and conceptually structured, I will rehabilitate the claim that (...) there is given element in experience which is independent of thought and which is possessed of a distinctive nonpropositional and nonconceptual content. Further, I will argue that this given element is indeed fit to play a significant evidential role in the justification of our beliefs about the world. (shrink)

Susanna Rinard has recently offered a new argument for pragmatism and against evidentialism. According to Rinard, evidentialists must hold that the rationality of belief is determined in a way that is different from how the rationality of other states is determined. She argues that we should instead endorse a view she calls Equal Treatment, according to which the rationality of all states is determined in the same way. In this paper, I show that Rinard’s claims are mistaken, and that evidentialism (...) is more theoretically virtuous than its opponents sometimes give it credit for. Not only does evidentialism not make an exception for belief, but it fits naturally into a unified, explanatorily powerful account of the rationality of intentional mental states. According to such an account, the rationality of all intentional mental states, including belief, is determined by the right kind of reasons for those states. Since the right kind of reasons for belief just are evidential considerations, this unified account entails evidentialism. I conclude, contra Rinard, that evidentialism can be situated within a general account of rationality that is at least as theoretically virtuous as pragmatism, if not more so. (shrink)

The philosophical debate over disgust and its role in moral discourse has focused on disgust’s epistemic status: can disgust justify judgments of moral wrongness? Or is it misplaced in the moral domain—irrelevant at best, positively distorting at worst? Correspondingly, empirical research into disgust has focused on its role as a cause or amplifier of moral judgment, seeking to establish how and when disgust either causes us to morally condemn actions, or strengthens our pre-existing tendencies to condemn certain actions. Both of (...) these approaches to disgust are based on a set of assumptions that I call, in what follows, the evidential model of disgust. This paper proposes an alternative model, which I call the response model. Instead of looking at disgust as a cause and justification of judgments of moral wrongness, I will argue that disgust is better understood as a response to wrongness. More precisely, I argue that disgust is a response to norm violations, and that it is a fitting response insofar as norm violations are potentially contagious and therefore pose a threat to the stability and maintenance of norms. (shrink)

Bogen and Woodward characterized data as embedded in the context in which they are produced (‘local’) and claims about phenomena as retaining their significance beyond that context (‘nonlocal’). This view does not fit sciences such as biology, which successfully disseminate data via packaging processes that include appropriate labels, vehicles, and human interventions. These processes enhance the evidential scope of data and ensure that claims about phenomena are understood in the same way across research communities. I conclude that the degree (...) of locality of both data and claims about phenomena varies depending on the packaging used to make them travel and on the research setting in which they are used. †To contact the author, please write to: ESRC Centre for Genomics in Society, University of Exeter, Byrne House, St. Germans Road, EX4 4PJ Exeter, United Kingdom; e‐mail: [email protected]. (shrink)

Ted Sider’s paper “Hell and Vagueness” challenges a certain conception of Hell by arguing that it is inconsistent with God’s justice. Sider’s inconsistencyargument works only when supplemented by additional premises. Key to Sider’s case is a premise that the properties upon which eternal destinies superveneare “a smear,” i.e., they are distributed continuously among individuals in the world. We question this premise and provide reasons to doubt it. The doubts come from two sources. The first is based on evidential considerations (...) borrowed from skeptical theism. A related but separate consideration is that supposing it would be an insurmountable problem for God to make just (and therefore non-arbitrary) distinctions in morally smeared world, God thereby has sufficient motivation not to actualize such worlds. Yet God also clearly has motivation only to actualize some member of the subset of non-smeared worlds which don’t appear non-smeared. For if it was obvious who was morally fit for Heaven and who wasn’t, a new arena of great injustice is opened up. The result is that if there is a God, then he has the motivation and the ability to actualize from just that set of worlds which are not smeared but which are indiscernible from smeared worlds. (shrink)

In this article, I argue that popular explanatory frameworks in perceptual psychology suggest the truth of color realism. I focus on perceptual judgments and their evidential basis: namely perceptual representation. I first draw a distinction between two sorts of normativities with respect to which we can evaluate representational capacities and systems: biological and psychological normativities. The former is defined in terms of evolutionary fitness, and the latter in terms of representational accuracy. Generally, representational systems achieve psychological and biological success (...) hand in hand, but in special circumstances, a representational system can be such that it serves the organism best while not generally furnishing the organism with accurate representations. I argue in this essay that an explanation how and why our ancestors developed color vision that cleaves its biological success conditions from its psychological success conditions cannot be given unless we are prepared to say the same about the visual perception of distance and other geometrical features of the world. Moreover, it is difficult to see how the anti-realist could begin to specify psychological success conditions for color representations. Hence, we ought to accept the biological utility of color vision as evidence that it is typically representationally successful, and regard our perceptual judgments about color as generally true. (shrink)

Suppose that disgust can provide evidence of moral wrongdoing. What account of disgust might make sense of this? A recent and promising theory is the social contagion view, proposed by Alexandra Plakias. After criticizing both its descriptive and normative claims, I draw two conclusions. First, we should question the wisdom of drawing so straight a line from biological poisons and pathogens to social counterparts. Second, we don’t need to explain the evidential value of disgust by appealing to what the (...) response tracks. These lessons point toward an alternative: namely, that disgust is a moral heuristic. On the heuristic view, disgust is a trigger for the subconscious use of a particular rule: I show how this view fits with a plausible hypothesis about the social function of disgust, and then apply it to Leon Kass’s famous use of repugnance to criticize cloning. (shrink)

This thesis mounts an attack against accounts of perceptual justification that attempt to analyze it in terms of evidential justifiers, and has defended the view that perceptual justification should rather be analyzed in terms of non-evidential justification. What matters most to perceptual justification is not a specific sort of evidence, be it experiential evidence or factive evidence, what matters is that the perceptual process from sensory input to belief output is reliable. I argue for this conclusion in the (...) following way. Chapter 1: The Arguments from HallucinationChapter 1 presents a skeptical argument from hallucination that starts from a premise about the alleged introspective indistinguishability of perception and hallucination, and concludes that perceptual knowledge is impossible. Underlying this argument are certain assumptions about the nature of perceptual justification, and different responses to the argument portray different views of perceptual justification. Evidentialism and dogmatism both reject the premise that appearances do not provide evidence sufficient for perceptual knowledge, although they disagree about the precise nature of the appearances. Epistemological disjunctivism rejects the premise that introspectively indistinguishable experiences provide the same evidence, while upholding the idea that some sort of evidence, namely factive evidence, is necessary for perceptual justification and knowledge. Process reliabilism rejects the premise that evidence is necessary for perceptual knowledge on the grounds that even perceptual justification can be obtained without evidence, as long as the cognitive process producing the belief is reliable.Chapter 2: EvidentialismChapter 2 starts by introducing some motivations for experientialist views of perceptual justification, such as evidentialism and dogmatism, which hold that conscious experiences evidentially justify perceptual beliefs. These motivations have to do with their ability to accommodate the New Evil Demon Intuition that demon-deceived subjects have justified perceptual beliefs and the Blindsight Intuition that blindsighters do not have justified perceptual beliefs. However, experientialist views are also faced with a Sellarsian dilemma: either experience is construed as non-propositional, but then the proposed evidential relation is unclear, or experience is construed as propositional, but then it is ad hoc to hold that they can evidentially justify without being justified themselves.Chapter 2 continues with a discussion of evidentialism, which grasps the first horn of this dilemma. I argue that evidentialism cannot adequately explain why a non-propositional experience constitutes evidence for this rather than that belief, and also does not provide any account of how to determine which belief fits an evidence-set which partly consists out of non-propositional experiences. Although a reliabilist version of evidentialism can provide a better account of these matters, it suffers from counter-intuitive predictions about justification and a conception of evidence that is so liberal that it could even include blindsighters and clairvoyants as having such evidence.Chapter 3: DogmatismChapter 3 focuses on variants of dogmatism, a theory of perceptual justification that grasps the second horn of the Sellarsian dilemma by holding that a perceptual experience with the content that p is sufficient for immediate prima facie justification of the belief that p. I first argue that dogmatism should identify perceptual experiences with high-level conscious states to accommodate the problem of novice vs. expert identification and the problem of the speckled hen. I then argue that this version of dogmatism still fails to meet a certain explanatory challenge which I dub the `Distinctiveness Problem'. Dogmatism should explain what is so distinctive about perceptual experience that enables it, in contrast with desire and imagination, to evidentially justify the belief that p without, in contrast with belief, being justified itself.Phenomenalist answers to this problem fail because they either do not provide a distinctive property of perceptual experience, or else provide a property that is reducible to or possibly caused by beliefs. In both cases, dogmatism would have the result that intuitively unjustifying experiences, such as imaginations, nevertheless become capable of justifying beliefs. Moreover, phenomenalists still need some explanation of why phenomenology is epistemically relevant at all.A new variant of the problem of the speckled hen is an intuitive illustration of this point against dogmatists. If a perceptual experience that p is not reliably connected to the fact that p or the belief that p, then beliefs based on this experience simply will not be intuitively justified. One possible response to this problem incorporates reliability into the content of experience in the sense that an experience cannot have the content that p if it is not reliably connected to both the fact that p and the belief that p. However, this will lose the motivation from the New Evil Demon Scenario, and will make large concessions towards reliabilism.Chapter 4: Epistemological DisjunctivismGiven these problems for experientialist views of perceptual justification, chapter 4 focuses on a different evidential account of justification: epistemological disjunctivism. According to the Justified True Belief version of Epistemological Disjunctivism, the fact that I see that p is the factive and reflectively accessible evidence in virtue of which I know that p. I argue that JTBED faces formidable problems: first, it cannot adequately deal with the basis problem, second, it cannot accommodate the New Evil Demon Intuition, third,it faces the problem of hyper-intellectualization, and fourth, it has no good account of reflective access.Knowledge First Epistemological Disjunctivism, in contrast, holds that seeing that p just is a way of knowing that p. The fact that I see that p constitutes my justification for believing that p, even though it is not necessary for my knowledge that p. Although this view solves most of the above problems, I argue that KFED still faces a challenge of its own: its notion of justification is so strong that justification entails knowledge but is not itself entailed by it. This means that it too faces a hyper-intellectualization objection because it cannot accommodate animal justification, and that it too will struggle to accommodate the New Evil Demon Intuition.Nevertheless, there is something to the epistemological disjunctivist idea that higher-order capabilities are important to perceptual justification. Specifically, higher-order capabilities provide one with a way of accommodating the Blindsight Intuition without appealing to the notion of experiential evidence: blindsighters are epistemically worse off than normal human perceivers because they lack higher-order beliefs about how they are gaining their information. If one holds that these higher-order beliefs provide a special sort of justification for perceptual beliefs, then blindsighters lack this type of justification. Chapter 5: Process ReliabilismAfter displaying the problems of several evidential accounts of perceptual justification, chapter 5 introduces a non-evidential account: process reliabilism. The classic version of this view holds that the reliability of a belief-forming process is necessary and sufficient for the prima facie justification of a specific set of beliefs, namely, those that arise out of belief-independent processes. Two classic major problems for this view consist of counterexamples to both the necessity and sufficiency of reliability for justification. Although the Generality Problem raises some difficulties for reliabilism, they do not appear to be insurmountable.The second part of chapter 5 focuses on a variety of process reliabilism, inferentialist reliabilism, that is explicitly aimed at responding to clairvoyance cases. According to inferentialist reliabilism, one should distinguish between basic and non-basic beliefs, where basic beliefs are those that result out of the non-inferential operation of an inferentially opaque cognitive system that developed in a natural way. Reliability is only sufficient for the justification of basic beliefs, while non-basic beliefs also require conditional reliability and justification of the beliefs on which they are based.This distinction between basic and non-basic beliefs is meant to answer the challenge arising out of clairvoyance cases because these are all supposedly cases in which the resulting beliefs arenon-basic. However, I argue that the beliefs in these cases come out as non-basic primarily because of the etiological constraint on cognitive systems, a constraint that is unfortunately undermotivated. It seems that beliefs can be justified even if they are produced by a cognitive system that developed by accident, or by a system that was artificially designed to produce those beliefs. So even though the inferentialist reliabilist might have a point in distinguishing between basic and non-basic beliefs, it is still in need of a different response to clairvoyance cases. Chapter 6: Rejoinders for ReliabilismChapter 6 improves on the inferentialist reliabilist account of justification by presenting a different way of dealing with the clairvoyance cases and New Evil Demon Scenario. I start from the empirically plausible idea that we know that we are perceiving when we are perceiving, not because of the use of experiential evidence, but rather, because of an unconscious source-monitoring mechanism. I then argue that the existence of such a source-monitoring mechanism could be used to explain why clairvoyance cases actually have to do with defeat rather than absence of prima facie justification: beliefs that pop up in our head should be recognized as stemming from untrustworthy sources, and so we acquire defeating higher-order beliefs about the first-order beliefs. I also argue that this defeat should be able to occur even if the higher-order beliefs are themselves unjustified. This defeater-account of clairvoyance is preferable to several externalist alternatives. Making reliability relative to a specific world seems rather ad hoc, and further requirements on justification, such as evidence-based belief, cognitively integrated belief, or properly produced belief, all appear unnecessary and are susceptible to adapted versions of the clairvoyance case.I further argue for an alternative inferentialist reliablist response to the New Evil Demon Intuition which treats it as mistaken rather than correct. The New Evil Demon Intuition might arise because of a mistaken view of actual perceptual justification as having to do with experiential evidence. This mistaken view could be explained by the fact that experience is actually reliably connected to belief and is often cited in response to a knowledge-challenge. If this is a correct analysis of the New Evil Demon Intuition, then there is an element of question-begging involved when this scenario is still pressed against inferentialist reliabilists who do not adhere to the experientialist assumption it presupposes.With the inferentialist reliabilist account in hand,we are able to see that many of the premises of the epistemological argument from hallucination are problematic. Evidence does not appear to be required for perceptual knowledge, as perceptual justification does not even require such evidence. Moreover, if we accept a reliabilist model of introspection, then we are often able to know on the basis of introspection that we are perceiving rather than hallucinating. Once one gets clear about the alternatives, it becomes apparent that the argument thrives on internalist assumptions about justification and knowledge that one need not accept. (shrink)

A core, constitutive norm of science is to remove or remedy the artefacts in one’s data. Here, we consider examples of artefacts from many fields of science (for example, astronomy, economics, electrophysiology, psychology, and systems neuroscience) and discuss their contribution to a more general evidential selection problem at the heart of the epistemology of evidence. Synthesizing and building on previously disparate discussions in many areas of the philosophy of science, we provide a novel, causal–pragmatic account that fits the examples (...) and clarifies the practices by which artefacts are discovered and remedied. (shrink)

Recent arguments for scientific realism have emphasized the importance of both methodological factors, such as theoretical unification , and experiments , as evidence for a realistic view of certain aspects of theoretical structure . Throughout this dissertation I argue that neither strategy is sufficient as a defense of realism. ;Chapter one consists of a discussion of Friedman's argument for realism as outlined in his Foundations of Space-Time Theories . I argue that his reliance on theoretical unification and conjunction as grounds (...) for a selective brand of realism is unsatisfactory for a variety of reasons. Not only does his structure-substructure reductivist model of theories and the emphasis on conjunction fail to fit actual cases of theory evolution, but the historical relativity built into the approach is undesirable even from a realist perspective. The relationship between conjunctive inference and unification is discussed and it is suggested that although theoretical unification is desirable at some stages of theory development it contributes nothing to the justification or evidential warrant of theories. ;In chapter two my claims regarding unification are applied to the development of Maxwell's electromagnetic theory. I discuss the difficulties in specifying a workable model of the aether as the unifying theoretical structure as well as the importance of models and analogies in Maxwell's work. It is argued that this obvious unification of electromagnetism and optics played virtually no evidential role in the final acceptance of the theory. It was not until the completion of Hertz's experiments that Maxwell's theory was actually vindicated. ;Chapter three focuses on the experimental difficulties associated with Maxwell's theory and the relationship between Hertz's experiments and his theoretical interpretation of electromagnetism. ;In chapter four I summarize some of the general difficulties associated with the notion of independent evidence as it pertains to experimental results. I conclude by arguing that although experiment provides a more persuasive case for realism than methodological factors, in many instances it fails to provide the kind of epistemological justification required for the realist assumptions about the ontology of scientific theories. (shrink)

The major part of our beliefs and our knowledge of the world is based on, or grounded in, sensory experience. But, how is it that we can have perceptual beliefs that things are thus and so, and, moreover, be justified in having them? What conditions must experience satisfy to rationally warrant, and not merely to cause, our beliefs? Against the currently very popular contention that experience itself already has to be propositionally and conceptually structured, I will rehabilitate the claim that (...) there is given element in experience which is independent of thought and which is possessed of a distinctive nonpropositional and nonconceptual content. Further, I will argue that this given element is indeed fit to play a significant evidential role in the justification of our beliefs about the world. (shrink)

The likelihood principle is typically understood as a constraint on any measure of evidence arising from a statistical experiment. It is not sufficiently often noted, however, that the LP assumes that the probability model giving rise to a particular concrete data set must be statistically adequate—it must “fit” the data sufficiently. In practice, though, scientists must make modeling assumptions whose adequacy can nevertheless then be verified using statistical tests. My present concern is to consider whether the LP applies to these (...) techniques of model verification. If one does view model verification as part of the inferential procedures that the LP intends to constrain, then there are certain crucial tests of model verification that no known method satisfying the LP can perform. But if one does not, the degree to which these assumptions have been verified is bracketed from the evidential evaluation under the LP. Although I conclude from this that the LP cannot be a universal constraint on any measure of evidence, proponents of the LP may hold out for a restricted version thereof, either as a kind of “ideal” or as defining one among many different forms of evidence. (shrink)

We argue there is a deep conflict in Paul Moser’s work on divine hiddenness. Moser’s treatment of DH adopts a thesis we call SEEK: DH often results from failing to seek God on His terms. One way in which people err, according to Moser, is by trusting arguments of traditional natural theology to lead to filial knowledge of God. We argue that Moser’s SEEK thesis commits him to the counterfactual ACCESS: had the atheist sought after God in harmony with how (...) God reveals himself, she would have had access to filial knowledge of God. By failing to incorporate arguments or propositional evidence for God’s existence, Moser’s account leaves the doubting seeker without any evidential reason to think that either SEEK or ACCESS is true. Without this rational motivation in place, the doubting seeker is unlikely to seek after God in the way ACCESS describes. We argue that natural theology provides an evidential epistemic aid to motivate persons to seek God the way ACCESS describes. Thus, Moser is mistaken. Such arguments can be evidentially helpful in coming to know God. In conclusion, we explain how our reply naturally fits how we form and maintain trusting interpersonal relationships with others. (shrink)

The classical analysis of relevance in probabilistic terms does not fit legal, moral or conversational relevance, and, though analysis in terms of a psychological model may fit conversational relevance, it certainly does not fit legal, moral or evidential relevance. It is important to notice here that some sentences are ambiguous between conversational and non-conversational relevance. But, if and only ifR is relevant to a questionQ, R is a reason, though not necessarily a complete or conclusive reason, for accepting or (...) rejecting something as an answer toQ. Reasons of this kind are governed by appropriate covering laws or principled probabilities and a number of questions thus arise about the relationship between relevance and certain formal-logical properties. (shrink)

Some desiderata for scientific confirmation are formulated in the light of a tentative scientific world view. Bayesian confirmation theories generically satisfy most of these desiderata, but one of them, "the strategy of ascent," fits best in a tempered personalist version of Bayesianism. There are both empirical and rational components, dialectically combined, in tempered personalism. The question of explanation vs. prediction is treated in a Bayesian manner, and it is found that both operations are susceptible to characteristic systematic errors. If these (...) are eliminated, however, then explanation and prediction provide equally good evidential support for hypotheses. (shrink)

Richard Moran’s Authority and Estrangement develops a compelling explanation of the characteristic features of self-knowledge that involve the use of ‘I’ as subject. Such knowledge is immediate in the sense of non-inferential, is not evidentially grounded and is epistemically authoritative.1 A&E develops its distinctive explanation while also offering accounts of other features of self-knowledge that are often overlooked, such as the centrality of self-knowledge characterised in this way to the concept of the person and its ethical importance. Moran recognises that (...) were an agent to lack the capacity authoritatively to avow his or her own state of mind this would be an ethically damaging defect. Moran’s treatment of these issues is subtle and in places profoundly insightful. I will argue, however, that there is a loose fit between two separate explanations that he gives of self-knowledge. On the one hand Moran argues that the best explanation of self-. (shrink)

Scientific debates about the nature of light have nothing to do with the philosophical problem of evil if you focus on the subject matter of those debates, but quite a bit to do with it if you focus on the structure of the reasoning in those debates. Some theories of light have been shown to be improbable, at least other evidence held equal, by comparing them to incompatible theories, both with respect to how well they fit certain data and (at (...) least implicitly) with respect to how probable they are intrinsically. Similarly, (a popular form of) theism can be shown to be improbable, at least other evidence held equal, by comparing it to the incompatible theory that physical reality is the source of mental reality. This theory of “source physicalism” fits a variety of data about good and evil much better than theism does. Further, primarily because of its modesty, source physicalism is many times more probable intrinsically than theism. It follows that, other evidence held equal, theism is very probably false. (shrink)

The skeptical doubts entertained by Descartes give rise to seven distinct theses characterizable as solipsistic, each focused on one of three general epistemological problems, that of the reality of the perceived, that of the existence of the unperceived, and the so-called problem of the existence of an external world. The skeptical challenge in each case is concerned not with absolute certainty, but with the question of whether there is any warrant whatever for bridging the evidential gap between data and (...) common-sense tenets. ;The challenge is shown to be answerable neither with pragmatic considerations nor with semantic ones, nor by appeal either to usual perceptual procedures, or to the factual presuppositions of enquiry. Coherentist criteria of fit, consilience, and simplicity are equally uncompelling and irrelevant. Detailed examination shows charges of parasitism, whether self-referential, epistemic, conceptual, or linguistic, to fail against all but one form of Cartesian solipsism, that arising from the external world problem. In particular, it appears not only that the three assumptions of any linguistic parasitism argument, to wit, the ontocentricity of language, the impossibility of private language, and the logocentricity of thought, are each false, but also that solipsistic theses may be formulated either in revised English or in imagic thought. ;The conclusion dictated is that skepticism regarding the reality and existence of everyday objects is answerable only by a rational foundationalist enterprise building on the terrain of the sensuous flux of the radical skeptic. An introspective analysis of instances of thinking, whether non-symbolic, imagic, or linguistic, and of feeling and motivation shows an indispensable element of the thinking subject to be the tactual body. The accommodation of this circumstance makes forms of solipsism questioning the reality of the observed Googolizably arbitrary, and consequently their espousal irrational. Finally, an extrapolation of an inverse probability argument shows forms of solipsism denying the existence of the unobserved to be extremely unlikely to be true. The argument utilizes a method of random selection based on free choice, the one remaining option given the proscriptions against empirical knowledge. (shrink)

Explanation is usually taken to be a relation between certain entities. The aim of this paper is to discuss what entities are suitable as explanatory relata of singular causal explanations, i.e., explanations concerning singular causality relating particular events or other appropriate entities. I outline three different positions. The purely causal approach stipulates that the same entities that are related in the singular causal relation are also linked by the explanatory relation. This position, however, has a problem to distinguish between causation (...) and explanation, two distinct relations allegedly obtaining between the same entities. The linguistic approach states that explanatory relata are linguistic entities of some sort, e.g., statements, propositions, etc. There are various versions of this position. I deal with two of them and try to show that they are unsatisfactory because they transform explanation into some other type of relation. On the first version, explanation is very close to interpretation or clarification of intension and on the second version it seems to be indistinguishable from an evidential relation or justification. I consider these transformations in understanding explanation unnecessary, and consequently reject linguistic views of explanatory relata. The most promising proposal concerning explanatory relata seems to be the mixed view, according to which propositions explain events or other fitting extra-linguistic entities. (shrink)