This paper motivates an account of knowledge as a social kind, following a cue by Edward Craig, which captures two major insights behind social and feminist epistemologies, in particular our epistemic interdependence concerning knowledge and the role of social regulative practices in understanding knowledge.

Como posso estar certo de que existe qualquer coisa de externa aos meus próprios pensamentos? Muitos filósofos procuraram ou apresentar uma prova da existência do mundo externo, ou rejeitar a inteligibilidade da própria ideia de uma “prova” nesse contexto. O objetivo desse artigo é mostrar que o denominado “problema do mundo externo” decorre de uma má compreensão acerca do que seja justificativa epistêmica. Apresento o que denomino “paradoxo de Berkeley” de modo a mostrar que o uso ordinário da linguagem não (...) deve funcionar como critério de correção para a aplicação de conceitos como conhecimento e existência. Concluo que tanto as tentativas tradicionais de se apresentar uma prova da existência do mundo externo quanto as tentativas de se mostrar que o problema não faz sentido são equivocadas. O que deve ser levado em conta no exame do problema do mundo externo é o contexto em que a proposta cética é feita. (shrink)

_ Source: _Volume 8, Issue 3, pp 198 - 207 The paper discusses and presents an alternative interpretation to Penelope Maddy’s reading of G.E. Moore’s and Ludwig Wittgenstein’s anti-skeptical strategies as proposed in her book _What Do Philosophers Do? Skepticism and the Practice of Philosophy_. It connects this discussion with the methodological claims Maddy puts forward and offers an alternative to her therapeutic reading of Wittgenstein’s _On Certainty_.

In the recent literature on Moore's Proof of an external world, it has emerged that different diagnoses of the argument's failure are prima facie defensible. As a result, there is a sense that the appropriateness of the different verdicts on it may depend on variation in the kinds of context in which the argument is taken to be a move, with different characteristic aims. In this spirit, Martin Davies has recently explored the use of the argument within two different epistemic (...) projects called respectively ‘deciding what to believe’ and ‘settling the question’. Depending on which project is in hand, according to Davies, the diagnoses of its failure—if indeed it fails—will differ. I believe that, by introducing the idea that the effectiveness of a valid argument may be epistemic project-relative, Davies has pointed the way to an important reorientation of the debates about Moore's Proof. But I wish to take issue with much of the detail of his proposals. I argue that Davies's characterization of his two projects is misleading (§1), and his account of their distinction defective (§2). I then canvass some suggestions about how it may be improved upon and about how further relevant kinds of epistemic projects in which Moore's argument may be taken to be a move can be characterized, bringing out how each of these projects impinges differently on the issue of the Proof's failure and of its diagnosis (§§3 and 4). In conclusion (§5) I offer an overview of the resulting terrain. (shrink)

Abstract: G. E. Moore claimed to know a variety of commonsense propositions. He is often accused of being dogmatic or of begging the question against philosophers who deny that he knows such things. In this paper, I argue that this accusation is mistaken. I argue that Moore is instead guilty of answering questions of the form ‘Do I know p?’ in bad faith.

Naturalism in twentieth century philosophy is founded on the rejection of ‘first philosophy’, as can be seen in Quine’s rejection of what he calls ‘cosmic exile’. Husserl’s transcendental phenomenology falls within the scope of what naturalism rejects, but I argue that the opposition between phenomenology and naturalism is less straightforward than it appears. This is so not because transcendental phenomenology does not involve a problematic form of exile, but because naturalism, in its recoil from transcendental philosophy, creates a new form (...) of exile, what I call in the paper ‘exile from within’. These different forms of exile are the result of shared epistemological aspirations, which, if set aside, leave open the possibility of phenomenology without exile. In the conclusion of the paper, I appeal to Merleau-Ponty as an example of what phenomenology without epistemology might look like. (shrink)

I focus on two questions: what is knowledge, and how is knowledge possible? The latter is an example of a how-possible question. I argue that how-possible questions are obstacle-dependent and that they need to be dealt with at three different levels, the level of means, of obstacle-removal, and of enabling conditions. At the first of these levels the possibility of knowledge is accounted for by identifying means of knowing, and I argue that the identification of such means also contributes to (...) a proper understanding of what knowledge is. (shrink)

An epistemological how-possible question asks how knowledge, or knowledge of some specific kind, is possible. The main contention of Duncan Pritchard‟s stimulating comments is that what I call „explanatory minimalism‟ appears to offer us just what we are seeking when we ask such a question. This looks like a problem for me given that I defend a version of explanatory anti-minimalism. Pritchard outlines a version of minimalism inspired by the writings of John McDowell and does not find it obvious that (...) this position is lacking in any relevant respect. Nor do I. My minimalism is moderate rather than extreme but Pritchard‟s objections to anti-minimalism are objections to extreme anti-minimalism. Indeed, his comments do not seem to me to have any direct bearing on what I take to be the fundamental disagreement between minimalism and anti-minimalism. (shrink)

Deepfakes are audio, video, or still-image digital artifacts created by the use of artificial intelligence technology, as opposed to traditional means of recording. Because deepfakes can look and sound much like genuine digital recordings, they have entered the popular imagination as sources of serious epistemic problems for us, as we attempt to navigate the increasingly treacherous digital information environment of the internet. In this paper, I attempt to clarify what epistemic problems deepfakes pose and why they pose these problems, by (...) drawing parallels between recordings and our own senses as sources of evidence. I show that deepfakes threaten to undermine the status of digital recordings as evidence. The existence of deepfakes thus encourages a kind of skepticism about digital recordings that bears important similarities to classic philosophical skepticism concerning the senses. However, the skepticism concerning digital recordings that deepfakes motivate is also importantly different from classical skepticism concerning the senses, and I argue that these differences illuminate some possible strategies for solving the epistemic problems posed by deepfakes. (shrink)

In his book, "Perception as a Capacity for Knowledge" (2011), John McDowell advocates that the warrant provided by perception is infallible. For such, it is necessary to understand the role reason plays in the constitution of genuine perceptual states. Based on reason, we situate these states in the logical space of reasoning. So, we not only make the perceptual state into an episode of knowledge, but we also acquire knowledge of how we arrived to that knowledge. McDowell argues that this (...) condition for knowledge - the possession of the capacity to situate a perceptual state in the logical space of reasoning - does not commit him to intellectualism. In this paper, I defend that McDowell's internalism is not entirely exempt from intellectualism, and that internalism is more reasonable not only without intellectualism, but also without reflexivity. (shrink)

One notable line of argument for epistemic relativism appeals to considerations to do with non-neutrality: in certain dialectical contexts—take for instance the famous dispute between Galileo and Cardinal Bellarmine concerning geocentrism—it seems as though a lack of suitably neutral epistemic standards that either side could appeal to in order to resolve their first-order dispute is itself—as Rorty influentially thought—evidence for epistemic relativism. In this essay, my aim is first to present a more charitable reformulation of this line of reasoning, one (...) that is framed not merely in terms of the availability of epistemic norms that are suitably neutral between interlocutors, but in terms of the availability of what I call Archimedean metanorms. Once this more charitable line of argument is developed, I show how, even though it avoids problems that face ‘non-neutrality’ versions of the argument, it nonetheless runs into various other problems that appear ultimately intractable and, further, that the strategy in question gives us no decisive reason to draw the relativist’s conclusion rather than the Pyrrhonian sceptic’s. (shrink)

Even though the lines of thought that support skepticism are extremely compelling, we're inclined to look for ways of blocking them because it appears to be an impossible view to accept, both for intellectual and practical reasons. One goal of this paper is to show that when skepticism is packaged right, it has few problematic implications (or at least fewer than is often assumed). It is, for example, compatible with all the following claims (when these are correctly interpreted).

The principle that epistemic justification is necessarily transmitted to all the known logical consequences of a justified belief continues to attract critical attention. That attention is not misplaced. If the Transmission Principle is valid, anyone who thinks that a given belief is justified must defend the view that every known consequence of the belief is also justification of the conclusion in an obviously valid argument. Once created, the gap is hard to fill, whatever the circumstances. Reflection principle is modified, the (...) possibility of deductive justification is threatened. If some known consequence fails to be justified, the failure may extend to every known consequence. To reject Transmission is to insert a logical gap between the justification of a premise and the justification of the conclusion in an obviously valid argument. Once created, the gap is hard to fill, whatever the circumstances. Reflection on the Transmission Principle therefore usefully brings us face to face with the following dilemma: accept the principle and hand Cartesian scepticism a powerful weapon, or modify the principle and risk undermining deductive justification. (shrink)

In Fear of Knowledge, Paul Boghossian presents a series of arguments against epistemic relativism and constructivism, doctrines that he considers to have exerted an overly unjustified influence over the human and social sciences in the past two decades. In the presentation of his arguments, Boghossian charts out a terrain that closely identifies relativism with skepticism. Yet, the relationship between the two does not seem to be a simple matter of entailment or implication. The purpose of this paper is to clarify (...) the landscape surrounding relativism and skepticism and thereby to highlight their difference. The implications of such a clarification will include illustrating that some arguments thought to be against relativism are actually against skepticism, that there are very different ways of understanding the relationship between relativism and skepticism, and that a commitment to either relativism or skepticism does not entail commitment to the other. The overall objective is to show that Boghossian's conception of the terrain is incorrect and to offer an explanation for this pervasive misconception about the connection between relativism and skepticism. (shrink)

We often speak about religious experience, and sometimes we speak about metaphysical experience. Yet we seldom hear about philosophical experience. Is philosophy purely a matter of theories and theses, or does it have an experiential aspect? In this article, I argue for the following three claims. First, there is something we might call philosophical experience, and there is nothing mystical about it. Second, philosophical experiences are expressed in something quite similar to what Kant called "aesthetic judgements." Third, philosophical experiences are (...) expressed by using words in what Wittgenstein called "secondary sense." Finally, I try to show the educational significance of pursing philosophical experiences. Through articulating them one might find one's ground, and through articulating them in a less private and more universal form one might raise oneself to universality. Thus, in expressing philosophical experiences one aspires to speak in a universal voice. (shrink)

This paper discusses a number of themes and arguments in The Quest for Reality: Stroud's distinction between “philosophical” and “ordinary” questions about reality; the similarity he finds between the view that coloris “unreal” and the view that it is “subjective”; his argument against thesecondary quality theory; his argument against the error theory; and the “disappointing” conclusion of the book.

The sceptic about the external world presents us with a paradox: an apparently acceptable argument for an apparently unacceptable conclusion—that we do not know anything about the external world. Some paradoxes, for instance the liar and the sorites, are very hard. The defense of a purported solution to either of these two inevitably deploys the latest in high-tech philosophical weaponry. On the other hand, some paradoxes are not at all hard, and may be resolved without much fuss. They do not (...) contain profound lessons about the human condition. Where should we place the sceptical paradoxes? (shrink)

_ Source: _Volume 5, Issue 1, pp 55 - 60 Peter Murphy has argued that effective skeptical scenarios all have the following feature: the subject involved in the scenario does not know that some ordinary proposition is true, even if the proposition is true in the scenario. So the standard “false belief” conception of skeptical scenarios is wrong, since the belief of the targeted proposition need not be mistaken in the scenario. Murphy then argues that this observation engenders a problem (...) for skeptical arguments: they require the KK principle. We respond to this criticism on behalf of the skeptic in our paper. (shrink)

I argue that Wittgenstein's rejection of scepticism in On Certainty rests on the view that epistemic concepts such as‘doubt,‘knowledge’,‘justification’and so on, cannot be intelligibly applied to the common sense propositions that traditional sceptical arguments appear to undermine. I detect two strands in On Certainty in support of this view. I attempt to show that neither of these strands adequately establishes the thesis, and that they point to a tension in Wittgenstein's treatment of scepticism. I argue that the first strand is (...) dogmatic, but accords with the constraints of Wittgenstein's method, while the second strand avoids the dogmatism of the first at the cost of violating these constraints. (shrink)

Nearly all philosophers agree that only true things can be known. But does this principle reflect actual patterns of ordinary usage? Several examples in ordinary language seem to show that ‘know’ is literally used non-factively. By contrast, this paper reports five experiments utilizing explicit paraphrasing tasks, which suggest that non-factive uses are actually not literal. Instead, they are better explained by a phenomenon known as protagonist projection. It is argued that armchair philosophical orthodoxy regarding the truth requirement for knowledge withstands (...) current empirical scrutiny. (shrink)

Barry Stroud’s book _The Quest for Reality_1 is, I think, the most substantial study of colour realism that has yet been written. It subjects to fundamental criticism a tradition that found its classic expression in Descartes and Locke and which in many ways remains standard today; it argues to be flawed not only the traditional rejection of colours as mere ideas or features of ideas in the mind, but also the view that colours are dispositions or powers in objects to (...) produce ideas in us—which in other quarters sometimes passes as a form of colour realism. Stroud rejects subjectivism, dispositionalism, relativism, and reductionism; but he is deliberately reticent about offering any positive account of what we believe to exist when believe colours to exist (after all, he says, in quiet allusion to Butler, everything is what it is and not another thing). And he is resolute in denying that we can give a philosophical argument to establish such belief as true. Stroud’s general conclusion can be seen as occupying a middle ground between what we might call dogmatic anti-realism and dogmatic realism. He argues (in Ch. 7) that anti-realism (or what Stroud calls the ‘unmasking’ of colours) is a view that cannot be affirmed without a kind of self-refutation—for ‘no one could abandon all beliefs about the colours of things and still _understand_ the colour terms’ (168, my emphasis). On the other hand (in Ch. 9), it remains in some sense a ‘possibility’ (204) that everyday colour beliefs might actually all be false. Stroud’s final judgment is not that we shall or should abandon the ‘Quest for Reality’, though he has expressed many reservations about it.2 The. (shrink)

Recent literature on skepticism has raised a nearly univocal voice in condemning skeptical argumentation on the grounds that such argumentation necessarily involves our adopting some nonordinary or unnatural perspective. Were this really so, then skeptical conclusions would not speak to us in the way in which skeptics think they do: We would be "insulated" from any such conclusions. I argue that skeptical argumentation need not rely on any nonordinary or unnatural standards. Rather, the skeptic's procedure is to offer a critique (...) from within. Having given my argument for this claim (which I call the 'continuity argument'), I consider and respond to two important objections. I conclude that the skeptic has a powerful meta-argument to be deployed in defending the legitimacy of his skeptical conclusions against the slings and arrows of (those I call) the half-true theorists. (shrink)

Anthony Brueckner argues for a strong connection between the closure and the underdetermination argument for scepticism. Moreover, he claims that both arguments rest on infallibilism: In order to motivate the premises of the arguments, the sceptic has to refer to an infallibility principle. If this were true, fallibilists would be right in not taking the problems posed by these sceptical arguments seriously. As many epistemologists are sympathetic to fallibilism, this would be a very interesting result. However, in this paper I (...) will argue that Brueckner’s claims are wrong: The closure and the underdetermination argument are not as closely related as he assumes and neither rests on infallibilism. Thus even a fallibilist should take these arguments to raise serious problems that must be dealt with somehow. (shrink)

Abstract: This essay explores the relation between feminist epistemology and the problem of philosophical skepticism. Even though feminist epistemology has not typically focused on skepticism as a problem, I argue that a feminist contextualist epistemology may solve many of the difficulties facing recent contextualist responses to skepticism. Philosophical skepticism appears to succeed in casting doubt on the very possibility of knowledge by shifting our attention to abnormal contexts. I argue that this shift in context constitutes an attempt to exercise unearned (...) social and epistemic power and that it should be resisted on epistemic and pragmatic grounds. I conclude that skepticism is a problem that feminists can and should take up as they address the social aspects of traditional epistemological problems. (shrink)

We offer an overview of what we take to be the main themes in Annalisa Coliva’s book, Moore and Wittgenstein: Scepticism, Certainty and Common Sense. In particular, we focus on the ‘framework reading’ that she offers of Wittgenstein’s On Certainty and its anti-sceptical implications. While broadly agreeing with the proposal that Coliva puts forward on this score, we do suggest one important supplementation to the view—viz., that this way of dealing with radical scepticism needs to be augmented with an account (...) of the meta-sceptical problem which this proposal generates, which we call epistemic vertigo. (shrink)

I am interested in fear of non-existence, which is often discussed in terms of fear one’s own death, or as it is sometimes called, fear of death as such. This form of fear has been denied by some philosophers. Cognitive theories of the emotions have particular trouble in dealing with it, granting it a status that is simultaneously paradigmatic yet anomalous with respect to fear in general. My paper documents these matters, and considers a number of responses. I provide examples (...) from philosophy and literature of fear of non-existence, and distinguish it from other death-related fears. I then look at the success that cognitive theories of the emotions have had in dealing with other “problematic” fears, such as phobias, and examine how the solutions here fail to apply to fear of non-existence. The problem lies with the perceptual-centred model of fear that is typically called upon. Against this I recommend a retreat to a belief-centred model for fear of non-existence. I argue that there are other fears that are better explained by a belief-centred rather a perceptual-based approach. This reinforces the plausibility of the belief-centred model, and goes some way to alleviating the anomalous and problematic status of the fear of non-existence. (shrink)

_ Source: _Page Count 12 In a previous article, I argued against the widespread reluctance of philosophers to treat skeptical challenges to our a priori knowledge of necessary truths with the same seriousness as skeptical challenges to our a posteriori knowledge of contingent truths. Hamid Vahid has recently offered several reasons for thinking the unequal treatment of these two kinds of skepticism is justified, one of which is a priori skepticism’s seeming dependence upon the widely scorned kk thesis. In the (...) present article, I defend a priori skepticism against Vahid’s criticisms. (shrink)

Reliabilism is a theory that countenances basic knowledge, that is, knowledge from a reliable source, without requiring that the agent knows the source is reliable. Critics (especially Cohen 2002 ) have argued that such theories generate all-too-easy, intuitively implausible cases of higher-order knowledge based on inference from basic knowledge. For present purposes, the criticism might be recast as claiming that reliabilism implausibly generates cases of understanding from brute, basic knowledge. I argue that the easy knowledge (or easy understanding) criticism rests (...) on an implicit mischaracterization of the notion of a reliable process. Properly understood, reliable processes do not permit the transition from basic knowledge to understanding based on inference. (shrink)

This paper compares and contrasts two ways of going on from Wittgenstein and, to a lesser extent, Austin. The first is Charles Travis'. The second is Stanley Cavell's. Focusing on our concept of propositional knowledge ('knowing that such and such'), I argue that Travis' tendency to think of language and its concepts as essentially in the business of enabling us to represent (describe, think of) things as being one way or another and his consequent neglect of the question of what, (...) in the Austinian sense, is being done with the words have led him to give an inaccurate account of the context sensitivity of 'knowing that'. By contrast, Cavell's treatment of the concept - while fully hospitable to Travis' 'occasion sensitivity' - is attentive to the limitations of the representationalist conception, and takes the question of what is being done with the words, as it relates to the question of the intelligibility of the speaker, as primary. This fundamental difference between Travis and Cavell, I finally suggest, explains the stark contrast between the ways in which each has responded to what he calls 'scepticism'. (shrink)

In this paper I examine a series of criticisms that have been levelled against Quine's naturalized epistemology, regarding its response to the problem of scepticism. Barry Stroud and Michael Williams, assuming that Quine wishes to refute scepticism, argue that Quine not only fails to undertake this refutation, but is also committed to theses (such as the inscrutability of reference and the underdetermination of theory by evidence) which imply versions of scepticism of their own. In Quine's defence, Roger Gibson argues that (...) Quine can succeed in showing sceptical doubts to be incoherent. But I contend that both parties of this dispute wrongly assume that Quine wishes to defeat the sceptic in a traditional way. Instead, Quine is happy to 'acquiesce' in scepticism about a certain kind of justification. No logical justification of our scientific beliefs is possible on his view. But Quine thinks that pragmatic justification is possible, and acknowledging that this is his view leads to the resolution of a number of interpretive quandaries. (shrink)

One of the most important views in the recent discussion of epistemological scepticism is Neo-Mooreanism. It turns a well-known kind of sceptical argument (the dreaming argument and its different versions) on its head by starting with ordinary knowledge claims and concluding that we know that we are not in a sceptical scenario. This paper argues that George Edward Moore was not a Moorean in this sense. Moore replied to other forms of scepticism than those mostly discussed nowadays. His own anti-sceptical (...) position turns out to be very subtle and complex; furthermore it changed over time. This paper follows Moore's views of what the sceptical problem is and how one should respond to it through a series of crucial papers with the main focus being on Moore's 'Proof of an External World'. An appendix deals with the much neglected relation between epistemological scepticism and moral scepticism in Moore. (shrink)

According to veridicalism, your beliefs about the existence of ordinary objects are typically true, and can constitute knowledge, even if you are in some global sceptical scenario. Even if you are a victim of Descartes’ demon, you can still know that there are tables, for example. Accordingly, even if you don’t know whether you are in some such scenario, you still know that there are tables. This refutes the standard sceptical argument. But does it solve the sceptical problem posed by (...) that argument? I argue that it does not, because we do not know substantively more about the external world according to veridicalism than we do according to the sceptical argument. Rather, veridicalism merely reformulates what little knowledge we have. I then draw some general conclusions about the nature of the sceptical problem, the formulation of the standard argument, and the significance of this for some other, non-veridicalist strategies. (shrink)

Contemporary discussions of skepticism often frame the skeptic's argument around an instance of the closure principle. Roughly, the closure principle states that if a subject knows p, and knows that p entails q, then the subject knows q. The main contention of this paper is that the closure argument for skepticism is defective. We explore several possible classifications of the defect. The closure argument might plausibly be classified as begging the question, as exhibiting transmission failure, or as structurally inefficient. Interestingly, (...) perhaps, each of these has been proposed as the correct classification of Moore's proof of an external world. (shrink)

b>. Recent findings in cognitive science suggest that the epistemic subject is more complex and epistemically porous than is generally pictured. Human knowers are open to the world via multiple channels, each operating for particular purposes and according to its own logic. These findings need to be understood and addressed by the philosophical community. The current essay argues that one consequence of the new findings is to invalidate certain arguments for epistemic anti-realism.

Philosophy has four forms: wonder, faith, doubt and scepticism. These are not separate categories, but separate ideal possibilities. Modern academic philosophy has fallen, for several centuries, into an error: which is the error of supposing that philosophy is only what I call doubt. Philosophy may be doubt: indeed, it is part of my argument that this is undeniably one element of, or one possibility in, philosophy; but doubt is only one of four points of the compass. In this essay I (...) indicate the nature of each point of the compass as it has been found in the history of philosophy. (shrink)

A critique of conversational epistemic contextualism focusing initially on why pragmatic encroachment for knowledge is to be avoided. The data for pragmatic encroachment by way of greater costs of error and the complementary means to raise standards of introducing counter-possibilities are argued to be accountable for by prudence, fallibility and pragmatics. This theme is sharpened by a contrast in recommendations: holding a number of factors constant, when allegedly higher standards for knowing hold, invariantists still recommend assertion (action), while contextualists do (...) not. Given the knowledge norm of assertion, if one recommendation is preferable to the other, the result favors the preferred recommendation's account of knowledge. In the final section, I offer a unification of these criticisms centering on the contextualist use of 'epistemic position'. Their use imposes on threshold notions of justification, warrant, or knowledge tests that are suitable only to unlimited comparative or scalar notions like confidence or certainty and places them at one with an important strand of sceptical reasoning. (shrink)

I develop and defend "metaethical experientialism," the thesis that phenomenal facts explain certain kinds of value facts. I argue, for example, that anyone who knows what it’s like to feel extreme pain is in a position to know that that kind of experience is bad. I argue that metaethical experientialism yields genuine counterexamples to the principle that no ethical conclusion can be derived from purely descriptive premises. I also discuss the prospects for a pluralistic metaethics, whereby different metaethical theories hold (...) for different classes of ethical facts. (shrink)

This book argues that misinformation poses a multi-faceted threat to knowledge, while arguing that some forms of content moderation risk exacerbating these threats. It proposes alternative forms of content moderation that aim to address this complexity while enhancing human epistemic agency. The proliferation of fake news, false conspiracy theories, and other forms of misinformation on the internet and especially social media is widely recognized as a threat to individual knowledge and, consequently, to collective deliberation and democracy itself. This book argues (...) that misinformation presents a three-pronged threat to knowledge. While researchers often focus on the role of misinformation in causing false beliefs, this deceptive potential of misinformation exists alongside the potential to suppress trust and to distort the perception of evidence. Recognizing the multi-faceted nature of this threat is essential to the development of effective measures to mitigate the harms associated with misinformation. The book weaves together work in analytic epistemology with emerging empirical work in other disciplines to offer novel insights into the threats posed by misinformation. Additionally, it breaks new ground by systematically assessing different forms of content moderation from the perspective of epistemology. Misinformation, Content Moderation, and Epistemology will appeal to philosophers working in applied and social epistemology, as well as scholars and advanced students in disciplines such as communication studies, political science, and social psychology who are researching misinformation. (shrink)

How all philosophical explanations of human consciousness and the fundamental structure of the cosmos are bizarre—and why that’s a good thing Do we live inside a simulated reality or a pocket universe embedded in a larger structure about which we know virtually nothing? Is consciousness a purely physical matter, or might it require something extra, something nonphysical? According to the philosopher Eric Schwitzgebel, it’s hard to say. In The Weirdness of the World, Schwitzgebel argues that the answers to these fundamental (...) questions lie beyond our powers of comprehension. We can be certain only that the truth—whatever it is—is weird. Philosophy, he proposes, can aim to open—to reveal possibilities we had not previously appreciated—or to close, to narrow down to the one correct theory of the phenomenon in question. Schwitzgebel argues for a philosophy that opens. According to Schwitzgebel’s “Universal Bizarreness” thesis, every possible theory of the relation of mind and cosmos defies common sense. According to his complementary “Universal Dubiety” thesis, no general theory of the relationship between mind and cosmos compels rational belief. Might the United States be a conscious organism—a conscious group mind with approximately the intelligence of a rabbit? Might virtually every action we perform cause virtually every possible type of future event, echoing down through the infinite future of an infinite universe? What, if anything, is it like to be a garden snail? Schwitzgebel makes a persuasive case for the thrill of considering the most bizarre philosophical possibilities. (shrink)

Skepticism about the internal world is actually more troubling than skepticism about the external world.

In On Certainty, Wittgenstein formulates several criticisms against skepticism about our knowledge of the external world. My goal is to show that Wittgenstein does not here offer a convincing answer to the skeptical problem. First, I will present a strong version of the problem, understanding it as a paradoxical argument. In the second part, I will introduce and raise problems for two pragmatic responses against skepticism that appear in On Certainty. Finally, I will present some of Wittgenstein’s logical criticisms against (...) skepticism, which may initially be considered strong, because they seem to refute some skeptical assumptions. They concern Wittgenstein’s ideas that it is logically impossible to doubt and to be mistaken about Moorean propositions, and that these propositions don’t have a truth-value. But even these, I intend to show, do not really challenge skepticism, for they are not well grounded. (shrink)

Jurado: Mario Gómez-Torrente (presidente), Miguel Ángel Fernández Vargas (vocal), Santiago Echeverri Saldarriaga (secretario). [Graduado con Mención Honorífica.].

In this essay I defend a solution to a skeptical paradox. The paradox I focus on concerns epistemic justification (rather than knowledge), and skeptical scenarios that entail that most of our ordinary beliefs about the external world are false. This familiar skeptical paradox hinges on a “closure” principle. The solution is to restrict closure, despite its first appearing as a fully general principle, so that it can no longer give rise to the paradox. This has some extra advantages. First, it (...) suggests a general strategy that provides solutions to other versions of the paradox, not just those that depend on closure. Second, it clarifies the relation between the paradox and other kinds of skeptical problem. (shrink)