In recent years, some philosophers have claimed that we can know a priori that certain external world skeptical hypotheses are false on the basis of a priori knowledge that we are in certain kinds of mental states, and a priori knowledge that those mental states are individuated by contingent environmental factors. Appealing to a distinction between weak and strong a priority, I argue that weakly a priori arguments of this sort would beg the question of whether the skeptical (...) hypothesis under assessment is true, and that the prospect of a sound strongly a priori argument of this sort seems dim. \\\ [David Owens] Contemporary discussion of scepticism focuses on the possibility that most or all of our beliefs might be false. I argue that the hypothesis of massive falsity and the associated 'problem of the external world' are inessential to the scepticisms of Descartes and Hume. What drives Cartesian and Humean scepticism is the demand for certainty: any possibility of error, however local, must be ruled out before we can claim either justified belief or knowledge. Contemporary philosophers have ignored this form of scepticism because they doubt that the demand for certainty can be motivated. But Descartes provides a sound motivation for this demand in the Meditations. (shrink)

[Brian P. McLaughlin] In recent years, some philosophers have claimed that we can know a priori that certain external world skeptical hypotheses are false on the basis of a priori knowledge that we are in certain kinds of mental states, and a priori knowledge that those mental states are individuated by contingent environmental factors. Appealing to a distinction between weak and strong a priority, I argue that weakly a priori arguments of this sort would beg the question of (...) whether the skeptical hypothesis under assessment is true, and that the prospect of a sound strongly a priori argument of this sort seems dim. \\\ [David Owens] Contemporary discussion of scepticism focuses on the possibility that most or all of our beliefs might be false. I argue that the hypothesis of massive falsity and the associated 'problem of the external world' are inessential to the scepticisms of Descartes and Hume. What drives Cartesian and Humean scepticism is the demand for certainty: any possibility of error, however local, must be ruled out before we can claim either justified belief or knowledge. Contemporary philosophers have ignored this form of scepticism because they doubt that the demand for certainty can be motivated. But Descartes provides a sound motivation for this demand in the Meditations. (shrink)

[Brian P. McLaughlin] In recent years, some philosophers have claimed that we can know a priori that certain external world skeptical hypotheses are false on the basis of a priori knowledge that we are in certain kinds of mental states, and a priori knowledge that those mental states are individuated by contingent environmental factors. Appealing to a distinction between weak and strong a priority, I argue that weakly a priori arguments of this sort would beg the question of (...) whether the skeptical hypothesis under assessment is true, and that the prospect of a sound strongly a priori argument of this sort seems dim. \\\ [David Owens] Contemporary discussion of scepticism focuses on the possibility that most or all of our beliefs might be false. I argue that the hypothesis of massive falsity and the associated 'problem of the external world' are inessential to the scepticisms of Descartes and Hume. What drives Cartesian and Humean scepticism is the demand for certainty: any possibility of error, however local, must be ruled out before we can claim either justified belief or knowledge. Contemporary philosophers have ignored this form of scepticism because they doubt that the demand for certainty can be motivated. But Descartes provides a sound motivation for this demand in the Meditations. (shrink)

Written by an international team of leading scholars, this collection of thirteen new essays explores the implications of semantic externalism for self-knowledge and skepticism, bringing recent developments in the philosophy of mind, the philosophy of language, and epistemology to bear on the issue. Structured in three parts, the collection looks at self-knowledge, content transparency, and then meta-semantics and the nature of mental content. The chapters examine a wide range of topics in the philosophy of mind (...) and the philosophy of language, including 2D semantics, transparency views of self-knowledge, and theories of linguistic understanding, as well as epistemological debates on contextualism, contrastivism, pragmatic encroachment, anti-luminosity arguments and testimony. The scope of the volume will appeal to graduate students and researchers in epistemology, philosophy of mind, philosophy of language, cognitive science, psychology and linguistics. (shrink)

Psychological externalism is the thesis that the contents of many of a person's propositional mental states are determined in part by relations he bears to his natural and social environment. This thesis has recently been thrust into prominence in the philosophy of mind by a series of thought experiments due to Hilary Putnam and Tyler Burge. Externalism is a metaphysical thesis, but in this work I investigate its implications for the epistemology of the mental. I am primarily concerned (...) with the question whether externalism undermines the idea that a person typically knows the contents of her own thoughts, beliefs, and other propositional attitudes directly and authoritatively. I criticize arguments that have been advanced on behalf of a positive answer to this question, and argue that they rest on a faulty conception of the nature of first person authority, one which likens our access to our own minds to perception. An account of the basis of first person authority is sketched that locates our epistemic right to our self-ascriptions of propositional attitude not in our ability to discriminate among the various thought contents we might be thinking, but rather in our ability to express our thoughts, and to think with them in accordance with the norms of rationality. I consider also the question whether first person authority and externalism jointly make possible a refutation of certain forms of global skepticism, as has been famously argued by Putnam. I argue that Putnam's attempted refutation fails, because the crucial externalist claims that drive it are not knowable a priori. (shrink)

I argue that externalism about mental content is consistent with the thesis that individuals need not investigate their environment to come to know the contents of their thoughts. In particular, externalism is consistent with the thesis that we come to know the contents of our thoughts on the basis of introspection.

This paper examines some of the interactions between holism, contextualism, and externalism, and will argue that an externalist metasemantics that grounds itself in certain plausible assumptions about self- knowledge will also be a contextualist metasemantics, and that such a contextualist metasemantics in turn resolves one of the best known problems externalist theories purportedly have with self-knowledge, namely the problem of how the possibility of various sorts of ‘switching’ cases can appear to undermine the ‘transparency’ of (...) our thoughts (in particular, our ability to tell, with respect to any two occurrent thoughts, whether they exercise the same or different concepts). (shrink)

Externalism about some mental property, M, is the thesis that whether a person (or other physical being) has M depends, not only on conditions inside the person.

A person’s authoritative self-knowledge about the contents of his or her own beliefs is thought to cause problems for content externalism, for it appears to yield arguments constituting a wholly non-empirical source of empirical knowledge: knowledge that certain particular objects or kinds exist in the environment. I set out this objection to externalism, and present a new reply. Possession of an externalist concept is an epistemological skill: it depends upon the subject’s possession of demonstratively-based (...) knowledge about the object or kind to which it refers. Thus, a person’s knowledge that he or she has an externalist belief, since this depends upon actually having that belief, and therefore upon possessing the relevant externist concept, presupposes knowledge about the object/kind in question, which provides a direct and perfectly empirical source of knowledge that this object/kind exists. Hence, the putatively problematic arguments do not constitute a non-empirical source of such empirical knowledge. (shrink)

Externalism in the philosophy of mind has been thought by many to pose a serious threat to the claim that subjects are in general authoritative with regard to certain of their own intentional states.¹ In a series of papers, Tyler Burge (1985_a_, 1985_b_, 1988, 1996) has argued that the distinctive entitlement or right that subjects have to self- knowledge in certain cases is compatible with externalism, since that entitlement is environmentally neutral, neutral with respect to the (...) issue of the individuation dependence of subjects' intentional states on factors beyond their bodies. His reason is that whereas externalism—the view that certain intentional states of persons are individuation-dependent on objects and/or phenomena external to their bodies—is a metaphysical thesis, authoritative self-knowledge is an epistemological matter. This being so, there is no reason to suppose that the two need conflict with one another. (shrink)

I want to discuss the possibility of combining a so-called.

Many people argue that privileged self–knowledge is incompatible with semantic externalism. I develop a contextualist approach to self–knowledge, and examine what this approach should lead us to say about the apparent incompatibility. Though such contextualism compels us to re–think the notion of privilege associated with self–knowledge, it can contain the damage wreaked by the externalist doctrine.

Several authors have argued that, assuming we have apriori knowledge of our own thought-contents, semantic externalism implies that we can know apriori contingent facts about the empirical world. After presenting the argument, I shall respond by resisting the premise that an externalist can know apriori: If s/he has the concept water, then water exists. In particular, Boghossian's Dry Earth example suggests that such thought-experiments do not provide such apriori knowledge. Boghossian himself rejects the Dry Earth experiment, however, (...) since it would imply that externalism is true of empty concepts as well as non-empty concepts. Yet in this paper I respond by defending empty-concept externalism, from criticisms suggested by Boghossian and Brown, and recently developed further by Besson. My contention is that an externalist can give a non-ad hoc descriptivist account of empty concepts. Accordingly, apriori self-knowledge does not enable an externalist to know contingent features of the external world. (shrink)

One of the most provocative projects in recent analytic philosophy has been the development of the doctrine of externalism, or, as it is often called, anti-individualism. While there is no agreement as to whether externalism is true or not, a number of recent investigations have begun to explore the question of what follows if it is true. One of the most interesting of these investigations thus far has been the question of whether externalism has consequences for the (...) doctrine that we have authoritative, a priori self-knowledge of our mental states. The selected works presented in this volume, some previously published, some new, are representative of this debate and open up new questions and issues for philosophical investigation, including the connection between externalism, self-knowledge, epistemic warrant, and memory. (shrink)

Externalism is the view that the contents of many of a person’s propositional attitudes and perhaps sensory experiences are extrinsic properties of the person’s brain: they involve relations between the person’s brain and properties instantiated in his or her present or past environment. Privileged self-knowledge is the view that every human being is able to know directly or non-inferentially, in a way unavailable to anybody else, what he or she thinks or experiences. Now, if what I think (...) is not in my brain, then it seems indeed as if I cannot have any privileged authoritative first-personal access to the content of what I think. Hence, externalism seems inconsistent with privileged self-knowledge. The purpose of this paper is to provide a road towards a conciliation between self-knowledge and externalism. (shrink)

There is a continuing debate as to whether externalism about mental content is compatible with certain commonly accepted views about the nature of self-knowledge. Both sides to this debate seem to agree that externalism is _not compatible with the traditional view that self-knowledge is acquired by means of observation. In this paper, I argue that externalism is compatible with this traditional view of self-knowledge, and that, in fact, we have good reason (...) to believe that the self-knowledge at issue is acquired by means of observation. (shrink)

Suppose, as I stare at a glass in front of me, I say or think: There.

According to the received view, externalist grounds or reasons need not be introspectively accessible. Roughly speaking, from an externalist point of view, a belief will be epistemically justified, iff it is based upon facts that make its truth objectively highly likely. This condition can be satisfied, even if the epistemic agent does not have actual or potential awareness of the justifying facts. No inner perspective on the belief-forming mechanism and its truth-ratio is needed for a belief to be justified. In (...) my view, this is not the whole story. While I agree that introspective access to our reasons is a defining feature of justification for the access internalist, not the externalist, I will argue that even for the latter, some kind of introspective access is an epistemic desideratum. Yet, even given that I am right, the desirable might not be achievable for us. Recent psychological research suggests that we do not dispose of reliable introspection into the sources of our own beliefs. This seems to undermine the claim that we can introspectively know about the reasons upon which our beliefs are based. In this paper I will therefore additionally show why these results do not threaten the kind of introspective access desirable from an externalist point of view. (shrink)

Entry on the Stanford Encyclopedia of Philosophy. A summary of the literature on whether externalism about thought content precludes non-empirical knowledge of one's own thoughts.

In the last twenty-five years, several authors have raised problems to the thesis that privileged self-knowledge is compatible with content externalism. In particular, the 'slow-switching' argument, which was originally put forth by Paul Boghossian (1989), aims to show that there is no satisfactory account of how we can have privileged knowledge about our own thoughts given content externalism. Though many philosophers have found ways to block the argument, no one has worried to address a major (...) worry that Boghossian had when he presented the argument, which is to understand under which conditions privileged self-knowledge is possible given content externalism. In this paper, I offer a diagnosis of why the slow-switching argument fails and I show how the diagnosis enables us to provide a partial response to Boghossian's worry. (shrink)

Semantic externalism holds that the content of at least some of our thoughts is partly constituted by external factors. Accordingly, it leads to the unintuitive consequence that we must then often be mistaken in what we are thinking, and any kind of claim of privileged access must be given up. Those who deny that semantic externalists can retain any account of self-knowledge are ‘incompatibilists’, while those who defend the compatibility of self-knowledge with semantic externalism (...) are ‘compatibilists’. This paper examines the claim of compatibilism, focusing on Burge’s “Slow Switching Argument” and Boghossian’s “Objection of Relevant Alternatives”. I argue that compatibilism is false, and that semantic externalism is incompatible with self-knowledge. (shrink)

I here argue against the viability of Peter Ludlow’s modified version of Paul Boghossian’s argument for the incompatibility of semantic externalism and authoritative self-knowledge. Ludlow contends that slow switching is not merely actual but is, moreover, prevalent; it can occur whenever we shift between localized linguistic communities. It is therefore quite possible, he maintains, that we undergo unwitting shifts in our mental content on a regular basis. However, there is good reason to accept as plausible that despite (...) their prevalence we are in fact able to readily adapt to such switches, as well as to the shifts in mental content that accompany them. The prevalence of slow switching between linguistic communities does not then necessarily entail incompatibility after all. (shrink)

Tyler Burge and other externalists about mental content have tried to accommodate privileged self-knowledge and to neutralize skepticism about one's ability to authoritatively know one's present thoughts. I show that, though Burgean compatibilism explains knowing it is p I believe, it doesn't explain how I can have privileged knowledge that the state I occupy is a state of believing rather than, say, a state of doubting. Moreover, given externalism, self-knowledge of attitudinal component is vulnerable (...) to a certain kind of error and so doesn't have the same kind of privilege as self-knowledge of current content. (shrink)

In this paper I argue first, that a contrastive account of self-knowledge and the propositional attitudes entails an anti-individualist account of propositional attitude concepts, second, that the final account provides a solution to the McKinsey paradox, and third, that the account has the resources to explain why certain anti-skeptical arguments fail.

This book shows that the debate over the compatibility of externalism and self-knowledge has led to the investigation of a variety of topics, including the a...

The definitive version is available at www.blackwell-synergy.com.

Externalism holds that the individuation of mental content depends on factors external to the subject. This doctrine appears to undermine both the claim that there is a priori self-knowledge, and the view that individuals have privileged access to their thoughts. Tyler Burge's influential "inclusion theory of self-knowledge" purports to reconcile externalism with authoritative self-knowledge. I first consider Paul Boghossian's claim that the inclusion theory is internally inconsistent. I reject one line of response (...) to this charge, but I endorse another. I next suggest, however, that the inclusion theory has little explanatory value. (shrink)

In this paper I argue in favor of the compatibility of semantic externalism with privileged self-knowledge by showing that an argument for incompatibilism from switching scenarios fails. Given the inclusion theory of self-knowledge, the hypothesis according to which I am having twater thoughts while thinking that I have water thoughts simply isn't a (entertainable) possibility. When I am on Earth thinking earthian concepts, I cannot believe that I am thinking that twater is wet for I (...) don't have the concept of twater available; so this concept cannot figure in any of my mental states. Analogously, when I am on Twin Earth, I cannot mistakenly believe that I am entertaining water thoughts. No matter how often I am switched between Earth and Twin Earth, I will never erroneously think that I am having water thoughts while in fact I am having twater thoughts and vice versa. Privileged self-knowledge is therefore immune to skeptical arguments from switching and twinning scenarios. (shrink)

In the mid-nineties a large number of philosophers (most famously, Michael McKinsey, Jessica Brown and Paul Boghossian) raised and discussed a certain form of challenge to externalism. In Boghossian.

This dissertation addresses the question of whether externalism and privileged access are compatible. I defend the view according to which they are, indeed, incompatible. However, this follows unproblematically from a distinction between two notions of mental content that I introduce and develop. My main suggestion is that a confusion between two notions of mental content is responsible for the view that the incompatibility of privileged access and externalism is problematic, since these are views about, strictly speaking, different varieties (...) of mental content. ;The discussion is divided into an introduction and four chapters. In the second chapter, I discuss the main argument for the position according to which externalism and privileged access are compatible. In the third chapter, I distinguish two kinds of mental content by using the two-dimensional semantics framework developed by David Kaplan, Robert Stalnaker and others. I then move to argue that externalism and privileged access are views about different sorts of content. Externalism is correct only when it is understood as a view about "objective content", essentially constituted by truth-conditions, whereas privileged access is correct only when it is understood as a view about "subjective content", a kind of "narrow" content essentially constituted by Stalnaker's "diagonal proposition". In the fourth chapter, I focus on privileged access and I offer an explanation of it. The main tenet of my account of privileged access is that our grounds for our first-order beliefs are the same as our grounds for the appropriate second-order beliefs. In the fifth chapter, I discuss the two main arguments for the position according to which externalism and privileged access are incompatible. By using the distinction regarding mental content drawn on chapter three, I argue that neither argument shows the incompatibility of externalism about objective content and privileged access about subjective content. Thus, I conclude that the incompatibility of privileged access and externalism is not problematic. (shrink)