Knowledge

French translation of Dretske's article "Epistemic Operators", The Journal of Philosophy, 67 (24): 1007-23.

An introduction to the theory of knowledge in a 24-lecture audio/video series with accompanying book.

Timothy Williamson has argued that, unless the speech act of assertion were supposed to be governed by his so-called Knowledge Rule, one could not explain why sentences of the form "A and I do not know that A" are unassertable. This paper advances three objections against that argument, of which the first two aim to show that, even assuming that Williamson's explanandum has been properly circumscribed, his explanation would not be correct, and the third aims to show that his explanandum (...) has not been properly circumscribed. (shrink)

Despite playing an important role in epistemology, philosophy of science, and more recently in moral philosophy and aesthetics, the nature of understanding is still much contested. One attractive framework attempts to reduce understanding to other familiar epistemic states. This paper explores and develops a methodology for testing such reductionist theories before offering a counterexample to a recently defended variant on which understanding reduces to what an agent knows.

Philosophers have been talking about skepticism for a long time. Some of those insights can shed light on our public discourse regarding climate change.

Two of the most orthodox ideas in epistemology are fallibilism and purism. According to the fallibilist, one can know that a particular claim is true even though one’s justification for that claim is less than fully conclusive. According to the purist, knowledge does not depend on practical factors. Fallibilism and purism are widely assumed to be compatible; in fact, the combination of these views has been called the ‘ho-hum,’ obvious, traditional view of knowledge. But I will argue that fallibilism and (...) purism are incompatible. The best explanation for fallibilism requires one to reject purism, while maintaining purism should lead one to reject fallibilism. It follows that the orthodox view of knowledge is deeply mistaken. (shrink)

The knowledge argument is something that is both an ideal for philosophy and yet surprisingly rare: a simple, valid argument for an interesting and important conclusion, with plausible premises. From a compelling thought-experiment and a few apparently innocuous assumptions, the argument seems to give us the conclusion, a priori, that physicalism is false. Given the apparent power of this apparently simple argument, it is not surprising that philosophers have worried over the argument and its proper diagnosis: physicalists have disputed its (...) validity, or soundness or both; in response, non-physicalists have attempted to reformulate the argument to show its real anti-physicalist lesson. (shrink)

Pragmatic encroachment theories have a problem with evidence. On the one hand, the arguments that knowledge is interest-relative look like they will generalise to show that evidence too is interest-relative. On the other hand, our best story of how interests affect knowledge presupposes an interest-invariant notion of evidence. -/- The aim of this paper is to sketch a theory of evidence that is interest-relative, but which allows that ‘best story’ to go through with minimal changes. The core idea is that (...) the evidence someone has is just what evidence a radical interpreter says they have. And a radical interpreter is playing a kind of game with the person they are interpreting. The cases that pose problems for pragmatic encroachment theorists generate fascinating games between the interpreter and the interpretee. They are games with multiple equilibria. To resolve them we need to detour into the theory of equilibrium selection. I’ll argue that the theory we need is the theory of risk-dominant equilibria. That theory will tell us how the interpreter will play the game, which in turn will tell us what evidence the person has. The evidence will be interest-relative, because what the equilibrium of the game is will be interest-relative. But it will not undermine the story we tell about how interests usually affect knowledge. (shrink)

It is worth noting that Maddy oversimplifies the history of Gettierology, for a lot of epistemologists who work on the Gettier Problem do not engage in analysing the concept of knowledge.

This paper examines the prospects of a prima facie attractive response to Fantl and McGrath’s argument for pragmatic encroachment. The response concedes that if one knows a proposition to be true then that proposition is warranted enough for one to have it as a reason for action. But it denies pragmatic encroachment, insofar as it denies that whether one knows a proposition to be true can vary with the practical stakes, holding fixed strength of warrant. This paper explores two ways (...) to allow knowledge-reason links without pragmatic encroachment, both of which appeal to defeat. The first appeals to defeaters of reasons. If you know the bank is open tomorrow, what you know is available as a reason, but it may be defeated by considerations concerning the stakes. The second appeals to defeaters which do not defeat reasons but which nonetheless do something similar: they make the action recommended by those reasons vicious. In a high stakes case performing the “risky” action would be vicious even if it is justified in the sense of being supported by undefeated reasons. What is defeated is a virtue-based epistemic status rather than reasons or justification. I argue that neither proposal halts the march from a knowledge-reason link to pragmatic encroachment. (shrink)

Knowledge and Civilization advances detailed criticism of philosophy's usual approach to knowledge and describes a redirection, away from textbook problems of epistemology, toward an ecological philosophy of technology and civilization. Rejecting theories that confine knowledge to language or discourse, Allen situates knowledge in the greater field of artifacts, technical performance, and human evolution. His wide ranging considerations draw on ideas from evolutionary biology, archaeology, anthropology, and the history of cities, art, and technology.

[From SEP]: Contemporary virtue epistemology (hereafter ‘VE’) is a diverse collection of approaches to epistemology. At least two central tendencies are discernible among the approaches. First, they view epistemology as a normative discipline. Second, they view intellectual agents and communities as the primary focus of epistemic evaluation, with a focus on the intellectual virtues and vices embodied in and expressed by these agents and communities. This entry introduces many of the most important results of the contemporary VE research program. These (...) include novel attempts to resolve longstanding disputes, solve perennial problems, grapple with novel challenges, and expand epistemology’s horizons. In the process, it reveals the diversity within VE. Beyond sharing the two unifying commitments mentioned above, its practitioners diverge over the nature of intellectual virtues, which questions to ask, and which methods to use. It will be helpful to note some terminology before proceeding. First, we use ‘cognitive’, ‘epistemic’ and ‘intellectual’ synonymously. Second, we often use ‘normative’ broadly to include not only norms and rules, but also duties and values. Finally, ‘practitioners’ names contemporary virtue epistemologists. (shrink)

In this article, I will chart the development of G.W.F. Hegel’s ‘concept [Begriff]’ in the Science of Logic. I show that Hegel could not arrive at the concept until the end of Book II, after his treatment of the categories of modality, especially contingency. -/- .

In the process of scientific discovery, knowledge ampliation is pursued by means of non-deductive inferences. When ampliative reasoning is performed, probabilities cannot be assigned objectively. One of the reasons is that we face the problem of the unconceived alternatives: we are unable to explore the space of all the possible alternatives to a given hypothesis, because we do not know how this space is shaped. So, if we want to adequately account for the process of knowledge ampliation, we need to (...) develop an account of the process of scientific discovery which is not exclusively based on probability calculus. We argue that the analytic view of the method of science advocated by Cellucci is interestingly suited to this goal, since it rests on the concept of plausibility. In this perspective, in order to account for how probabilities are in fact assigned in uncertain contexts and knowledge ampliation is really pursued, we have to take into account plausibility-based considerations. (shrink)

We propose a formal framework to examine the relationship between models and observations. To make our analysis precise,models are reduced to first-order theories that represent both terminological knowledge – e.g., the laws that are supposed to regulate the domain under analysis and that allow for explanations, predictions, and simulations – and assertional knowledge – e.g., information about specific entities in the domain of interest. Observations are introduced into the domain of quantification of a distinct first-order theory that describes their nature (...) and their organization and takes track of the way they are experimentally acquired or intentionally elaborated. A model mainly represents the theoretical knowledge or hypotheses on a domain, while the theory of observations mainly represents the empirical knowledge and the given experimental practices. We propose a precise identity criterion for observations and we explore different links between models and observations by assuming a degree of independence between them. By exploiting some techniques developed in the field of social choice theory and judgment aggregation, we sketch some strategies to solve inconsistencies between a given set of observations and the assumed theoretical hypotheses. The solutions of these inconsistencies can impact both the observations – e.g., the theoretical knowledge and the analysis of the way observations are collected or produced may highlight some unreliable sources – and the models – e.g. empirical evidences may invalidate some theoretical laws. (shrink)

This thesis explores the role and nature of intuition in philosophical inquiry. Appeals to intuition have either been used as evidence for or against philosophical theories or as constitutive features of judgement. I attempt to understand our uses of intuition by appealing to tacit knowledge. The hope is to elicit a picture of intuition as being practical and explanatory. Our reliance on intuition is warranted if we understand it as an expression of tacit knowledge.

We are living in an increasingly complex world. How are we able to cope with this complexity and the difficulties that arise from it? Can philosophy and art, classified as the two utmost useless and pointless disciplines, have any (positive) influence on the urgent and pressing problems at hand? And, related to this, if the two have more than just their uselessness in common, how, then, are philosophy and art related? In this article, I will argue that although ‘useless’ disciplines (...) such as philosophy and art have no direct influence on our complex world, they are nonetheless the most important ones, because those working within them practice their insights in an indirect way. Indirect influence may take a little longer, but the impact is much stronger, affecting our thinking and our attitudes from within, as it were. This indirect approach has everything to do with the sort of questions philosophers and artists occupy themselves with. I will show how both address, albeit each in their own way, fundamental questions, and thereby make use of thought experiments. Intuition and imagination play a decisive part in the creative processes that are involved in thought experiments and thinking. It is argued that we all are able to learn a ‘delayed unconscious thinking’ that leads to an artistic attitude; one that will activate an artistic turn. (shrink)

In this chapter, we follow Edward Craig?s advice: ask what the concept of knowledge does for us and use our findings as clues about its application conditions. What a concept does for us is a matter of what we can do with it, and what we do with concepts is deploy them in thought and language. So, we will examine the purposes we have in attributing knowledge. This chapter examines two such purposes, agent evaluation and informant-suggestion, and brings the results (...) to bear on an important debate about the application conditions of the concept of knowledge?the debate between contextualists and their rivals. (shrink)

Zeno’s Arrow and Nāgārjuna’s Fundamental Wisdom of the Middle Way Chapter 2 contain paradoxical, dialectic arguments thought to indicate that there is no valid explanation of motion, hence there is no physical or generic motion. There are, however, diverse interpretations of the latter text, and I argue they apply to Zeno’s Arrow as well. I also find that many of the interpretations are dependent on a mathematical analysis of material motion through space and time. However, with modern philosophy and physics (...) we find that the link from no explanation to no phenomena is invalid and that there is a valid explanation and understanding of physical motion. Hence, those arguments are both invalid and false, which banishes the MMK/2 and The Arrow under this and derivative interpretations to merely the history of philosophy. However, a view that maintains their relevance is that each is used as a koan or sequence of koans designed to assist students in spiritual meditation practice. This view is partly justified by the realization that both Nāgārjuna and Zeno were likely meditation masters in addition to being logicians. The works are, therefore, not works that should be assessed as having valid arguments and true conclusions by the standards of modern analytic philosophy—contrary to some of the literature—but rather are therapeutic and perhaps more appropriately considered as part of an experientially focused philosophy such as existentialism, phenomenology or religion. (shrink)

Uno de los temas fundamentales de la filosofía realista es la intentio. Este concepto surgió en la filosofía árabe a partir de la idea aristotélica que explica la posibilidad del alma de apropiarse de las formas de las cosas. La intentio es el vínculo referencial entre la realidad y el intelecto en el acto de conocer. En la primera parte del artículo se hace una revisión conceptual del término con especial énfasis en Avicena y Averroes; y en la segunda parte (...) se explica la idea de la intentio en dos filósofos tomistas contemporáneos. El objetivo principal de este estudio es volver a subrayar la conexión real que se establece entre el sujeto cognoscente y las cosas de la realidad. Se trata de una de las genuinas características del conocimiento realista en oposición al conocimiento inmanentista. (shrink)

Desde la consideración de Tomás de Aquino del conocimiento por connaturalidad, "el conocimiento que aporta a la inteligencia más datos que los puramente racionales, especialmente todos los datos proporcionados por la afectividad", es posible hacer un acercamiento integral a la realidad y establecer una relación con otras áreas de sabiduría y sus objetos de estudio. Esto ayuda a confrontar algunos problemas filosóficos reales, como la pérdida de la visión holística de la realidad, el reduccionismo epistemológico y el relativismo gnoseológico. Recordar (...) el estudio iniciado en la primera parte del siglo XX por tomistas bien conocidos sobre la connaturalidad ayudaría a comprender mejor la realidad y el ser humano, y facilitaría el diálogo entre Filosofía, Ciencia y Teología sobre temas como Ecología, Estética o Mística. (shrink)

I consider the problem of reflective knowledge faced by views that treat sensitivity as a necessary condition for knowledge, or as a major ingredient of the concept, as in the analysis I advance in Scepticism and Reliable Belief. I present the problem as concerning the correct analysis of SATs — beliefs to the effect that one of my current beliefs is true. I suggest that a plausible analysis of SATs should treat them as neither true nor false when they ascribe (...) truth to a non-existent belief. I argue that the problem is inescapable if we construe SATs as ascribing the property of truth to a belief. Deflationism manages to avoid the problem of reflective knowledge, but it does so by violating alethic priority — the principle that our account of representation must be built on our account of truth. I argue that we can avoid the problem of reflective knowledge while preserving alethic priority with a pragmatist account of truth — according to which truth is explicated in terms of the rules that govern the practice of assessing judgments and related items as true or false. (shrink)

¿Cómo objetivar la subjetividad sin caer en subjetivismos inmanentistas ni en objetivismos ajenos a la existencia personal? Desde el realismo filosófico la clave parece encontrarse en la adecuada articulación entre conciencia y subjetividad. Estudiaremos las teorías de la conciencia de Antonio Millán-Puelles y Karol Wojtyła desde la onto-fenomenología para hallar el modo de superar esta aporía. -/- How to objectify subjectivity without falling into either immanent subjectivisms or objectivisms foreign to personal existence? From the perspective of realist philosophy the key (...) seems to be found in an appropriate articulation between consciousness and subjectivity. We are going to study the theories of consciousness in Antonio Millán-Puelles and Karol Wojtyła from onto-phenomenology in order to find the way to overcome this aporia. (shrink)

How radical is the idea that reasons are factive? Some philosophers consider it a dramatic departure from orthodoxy, with surprising implications about the bearing of the external world on what credences it’s reasonable to have, what beliefs are epistemically appropriate, and what actions are rational. I deny these implications. In the cases where external matters imply differences in factive states, there will inevitably be important weaker factive states in common. For example, someone who knows it is raining has many factive (...) states in common with someone who has a Gettiered belief that it is raining, or one who falsely but justifiably believes that it is raining. The factive reasons denied to subjects in Gettier cases or skeptical scenarios are in an important sense redundant; appropriate belief or action supervenes on internal states, even if reasons must be factive (and even if appropriate belief and action supervenes on reasons). The degree to which the strategy is applicable depends substantively on epistemic assumptions about basic or foundational knowledge. I argue that even given a significantly externalist approach to the latter internalist intuitions about rational credence, belief, and action can be vindicated. (shrink)

It is a natural assumption in mainstream epistemological theory that ascriptions of knowledge of a proposition p track strength of epistemic position vis-à-vis p. It is equally natural to assume that the strength of one’s epistemic position is maximally high in cases where p concerns a simple analytic truth. For instance, it seems reasonable to suppose that one’s epistemic position vis-à-vis “a cat is a cat” is harder to improve than one’s position vis-à-vis “a cat is on the mat”, and (...) consequently, that the former is at least as unambiguous a case of knowledge as the latter. The current paper, however, presents empirical evidence which challenges this intuitive line of reasoning. Our study on the epistemic intuitions of hundreds of academic philosophers supports the idea that simple and uncontroversial analytic propositions are less likely to qualify as knowledge than empirical ones. We show that our results, though at odds with orthodox theories of knowledge in mainstream epistemology, can be explained in a way consistent with Wittgenstein’s remarks on ‘hinge propositions’ or with Stalnaker’s pragmatics of assertion. We then present and evaluate a number of lines of response mainstream theories of knowledge could appeal to in accommodating our results. Finally, we show how each line of response runs into some prima facie difficulties. Thus, our observed asymmetry between knowing “a cat is a cat” and knowing “a cat is on the mat” presents a puzzle which mainstream epistemology needs to resolve. (shrink)

In science and philosophy, a relatively demanding notion of understanding is of central interest: an epistemic subject understands a subject matter by means of a theory. This notion can be explicated in a way which resembles JTB analyses of knowledge. The explication requires that the theory answers to the facts, that the subject grasps the theory, that she is committed to the theory and that the theory is justified for her. In this paper, we focus on the justification condition and (...) argue that it can be analyzed with reference to the idea of a reflective equilibrium. (shrink)

Recently Colin Radford attempted to show primarily by examples that the entailment thesis that knowing entails believing is false. Both D. M. Armstrong and Keith Lehrer replied by suggesting, in effect, that Radford cannot justify his failure to consider unconscious belief. Here I show that neither Armstrong nor Lehrer succeeded in refuting Radford. But my exploration of their suggestion about unconscious belief leads to a complete reconstruction of Armstrong's principal example in terms of belief-constituting abilities. This reconstruction not only provides (...) grounds for defending the entailment thesis, but also renders the thesis immune to Radford's examples and arguments. (shrink)

When comparing different types of rationality the "ideal type" of rational knowledge in general should be taken as a standard» The specificity of philosophical type rationality consists in that the reality is examined from the point of view of subject-object relation including the whole mental-practical and specific-cognitive spheres; in the development of reflexion as a general philosophical method; in investigation of the conditions of possibility, concrete historical limits, rôle, functions and significance of knowledge as a kind of socio-cultural and historico-culturali (...) activity. (shrink)

William Alston once argued that justification is not necessary for knowledge. He was convinced of this because he thought that, in cases of clear perception, one could come to know that P even if one’s justification for believing P was defeated. The idea is that the epistemic strength of clear perception is sufficient to provide knowledge even where justification is lacking; perceiving that P is sufficient for knowing that P. In this paper, I explore a claim about knowledge that is (...) the opposite side of the coin from Alston’s position: clear perception that P is necessary for knowledge. Taking my cue from John Locke, I examine the plausibility of a theory of knowledge that distinguishes justified true unGettiered belief that P from knowing that P. Although I don’t fully advocate this position, I argue that it has significant plausibility, and that the initially troubling consequences of the account are not as problematic as one might have suspected. (shrink)

This is the first part of a study on the classification of phenomena. It starts by addressing the status of classification schemes among knowledge organization systems (KOSs), as some features of them have been overlooked in recent reviews of KOS types. It then considers the different dimensions implied in a KOS, which include: the observed phenomena, the cultural and disciplinary perspective under which they are treated, the features of documents carrying such treatment, the collections of such documents as managed in (...) libraries, archives or museums, the information needs prompting to search and use these collections and the people experiencing such different information needs. Until now, most library classification schemes have given priority to the perspective dimension as they first list disciplines. However, an increasing number of voices are now considering the possibility of classification schemes giving priority to phenomena as advocated in the León Manifesto. Although these schemes first list phenomena as their main classes, they can as well express perspective or the other relevant dimensions that occur in a classified item. The independence of a phenomenon-based classification from the institutional divisions into disciplines contributes to giving knowledge organization a more proactive and influential role. (shrink)

Stapp and others have proposed that reality involves a fundamental life process, or creative process. It is shown how this process description may be unified with the description that derives from quantum physics. The methods of the quantum physicist and of the biological sciences are seen to be two alternative approaches to the understanding of nature, involving two distinct modes of description which can usefully supplement each other, and neither on its own contains the full story. The unified view explains (...) the major features of quantum mechanics and suggests that biological systems may function more effectively than would be expected on the basis of quantum mechanics alone. (shrink)

Abstract: On the standard story about knowledge, knowledge has a normative dimension by virtue of the fact that knowledge involves justification. On the standard story, justification is necessary but insufficient for knowledge. The additional conditions that distinguish knowledge from justified belief are normatively insignificant. In this chapter we will consider whether the concept of knowledge might be irrelevant to normative questions in epistemology. Some proponents of the standard story might think that it is, but we shall see that the concept (...) of knowledge might play three important roles in answering normative questions in epistemology. The concept might be useful in helping us understand evidence and epistemic reasons, the kind of rational support required for justification, and in formulating epistemic norms. (shrink)

According to the No-Luck-Thesis knowledge possession is incompatible with luck – one cannot know that p if the truth of one’s belief that p is a matter of luck. Recently, this widespread opinion was challenged by Peter Baumann, who argues that in certain situations agents do possess knowledge even though their beliefs are true by luck. This paper aims at providing empirical data for evaluating Baumann’s hypothesis. The experiment was designed to compare non-philosophers’ judgments concerning knowledge and luck in one (...) case that Baumann takes to be in favor of his claim and other cases where, according to him, absence of knowledge coincides with luck. The results show that the cases do not differ in a significant way between each other with respect to verdicts regarding knowledge and luck. In all cases subjects were more reluctant to judge that the ‘Gettierized’ belief is knowledge and more likely to judge that it is true by luck in comparison to a belief that is an uncontroversial instance of knowledge. However, the negative relationship between knowledge and luck ascriptions predicted by the No-Luck-Thesis was almost absent. The data raise some doubts about the No-Luck-Thesis, but the reasons for doubt are different than what Baumann expected. (shrink)

Rockmore’s paper offers a nice discussion on how classical German idealism provides a plausible account of the Parmenidean insight that thought and being are identical and suggests that idealist epistemic constructivism is arguably the most promising approach to cognition. In this short commentary, I will explore the implications of adopting other interpretations of Parmenidean identity thesis, which arguably lead to different conclusions than the ones drawn by Rockmore. En route to disavow the distinction between ontology and epistemology, I argue that (...) one may adopt an approach on cognition which would be immunized to worries that prompt Rockmore’s elaboration and also embrace (at least) some of its benefits. (shrink)

Prediction Error Minimization theory (PEM) is one of the most promising attempts to model perception in current science of mind, and it has recently been advocated by some prominent philosophers as Andy Clark and Jakob Hohwy. Briefly, PEM maintains that “the brain is an organ that on aver-age and over time continually minimizes the error between the sensory input it predicts on the basis of its model of the world and the actual sensory input” (Hohwy 2014, p. 2). An interesting (...) debate has arisen with regard to which is the more adequate epistemological interpretation of PEM. Indeed, Hohwy maintains that given that PEM supports an inferential view of perception and cognition, PEM has to be considered as conveying an internalist epistemological perspective. Contrary to this view, Clark maintains that it would be incorrect to interpret in such a way the indirectness of the link between the world and our inner model of it, and that PEM may well be combined with an externalist epistemological perspective. The aim of this paper is to assess those two opposite interpretations of PEM. Moreover, it will be suggested that Hohwy’s position may be considerably strengthened by adopting Carlo Cellucci’s view on knowledge (2013). (shrink)

This book offers a comprehensive and accessible introduction to the epistemology of science. It not only introduces readers to the general epistemological discussion of the nature of knowledge, but also provides key insights into the particular nuances of scientific knowledge. No prior knowledge of philosophy or science is assumed by The Nature of Scientific Knowledge. Nevertheless, the reader is taken on a journey through several core concepts of epistemology and philosophy of science that not only explores the characteristics of the (...) scientific knowledge of individuals but also the way that the development of scientific knowledge is a particularly social endeavor. The topics covered in this book are of keen interest to students of epistemology and philosophy of science as well as science educators interested in the nature of scientific knowledge. In fact, as a result of its clear and engaging approach to understanding scientific knowledge The Nature of Scientific Knowledge is a book that anyone interested in scientific knowledge, knowledge in general, and any of a myriad of related concepts would be well advised to study closely. (shrink)

The value of knowledge has always been a central topic within epistemology. Going all the way back to Plato’s Meno, philosophers have asked, why is knowledge more valuable than mere true belief? Interest in this question has grown in recent years, with theorists proposing a range of answers. But some reject the premise of the question and claim that the value of knowledge is ‘swamped’ by the value of true belief. And others argue that statuses other than knowledge, such as (...) justification or understanding, are distinctively valuable. We will call the general question of why knowledge is valuable the value problem. (shrink)