Externalism is widely endorsed within contemporary philosophy of mind and language. Despite this, it is far from clear how the externalist thesis should be construed and, indeed, why we should accept it. In this entry I distinguish and examine three central types of externalism: what I call foundational externalism, externalist semantics, and psychological externalism. I suggest that the most plausible version of externalism is not in fact a very radical thesis and does not have any terribly interesting implications for philosophy (...) of mind, whereas the more radical and interesting versions of externalism are quite difficult to support. (shrink)

The paper discusses the thesis of extended belief and its implications for the possibility of extending ordinary, personal level knowledge. A common worry is that knowledge will overextend, that there will be ‘cognitive bloat’. If the subject’s standing beliefs can be realized in devices such as notebooks and smart phones, what is there to prevent the conclusion that she knows everything stored on such devices? One response to this worry is to block the move from belief to knowledge, and argue (...) that these externally stored beliefs, although reliable, do not qualify as knowledge. I argue, instead, that the fundamental problem arises at the level of belief. We prevent bloating of knowledge by preventing the bloating of belief. To do so, I argue, we need to take seriously Clark and Chalmers’ suggestion that what is distinctive of belief is its role in folk psychological explanations. Paying attention to this role shows that the usual examples, such as Otto’s notebook information, do not qualify as beliefs. To qualify, the external information would have to be much more directly connected to, and deeply integrated into, the subject’s overall system of beliefs and desires. (shrink)

Is understanding epistemic in nature? Does a correct account of what constitutes understanding of a concept mention epistemological notions such as knowledge, justification or epistemic rationality? We defend the view that understanding is epistemic in nature – we defend epistemological conceptions of understanding. We focus our discussion with a critical evaluation of Tim Williamson's challenges to epistemological conceptions of understanding in The Philosophy of Philosophy. Against Williamson, we distinguish three kinds of epistemological conceptions and argue that Williamson's arguments succeed against (...) only the most heavily committed kind, and leave the less heavily committed kinds untouched. Further, we argue that Williamson's elaboration of lessons from his arguments point in a direction opposite of his own conclusions and give vivid articulation and support to epistemological conceptions. We suggest also that skepticism about Williamson's larger metaphilosophical conclusions – according to which understanding plays no special role in the epistemology of philosophy – may be in order. (shrink)

It is commonly held that there are internal links between understanding and assent such that being semantically competent with an expression requires accepting certain sentences as true. The paper discusses a recent challenge to this conception of semantic competence, posed by Timothy Williamson (2007). According to Williamson there are no understanding-assent links of the suggested sort, no internal connection between semantic competence and belief. I suggest that Williamson is quite right to question the claim that being semantically competent with an (...) expression e requires accepting a certain sentence S as true. However, Williamson does not merely wish to reject this version of the understanding-assent view, but the very idea that the connection with belief provides constitutive constraints on linguistic understanding and concept possession. This further move, I argue, is very problematic. Giving a plausible account of semantic competence requires accepting that there are constitutive links between understanding and assent, although these links should be construed holistically rather than atomistically. (shrink)

The paper discusses whether the color terms should be given an externalist semantics. In the literature on the semantics of color terms externalism is standardly taken for granted, and Twin Earth style arguments play a central role. This is notable given that few people would claim that semantic externalism applies across the board, to all types of terms. Why, then, should the color terms belong with this group of terms? I argue that the standard externalist strategies, introduced by Tyler Burge (...) and Hilary Putnam, do not apply to these terms: The color terms do not function like natural kind terms, and the idea of semantic reliance on others does not apply to them. I conclude that the externalist arguments fail and that a version of internalism, more properly called ‘individualism’,applies to the color terms. (shrink)

During the last decade Jessica Brown has been one of the main participants in the on-going debate over the compatibility of anti-individualism and self-knowledge. It is therefore of great interest that she is now publishing a book examining the various epistemological consequences of anti-individualism. The book is divided into three sections. The first discusses the question of whether a subject can have privileged access to her own thoughts, even if the content of her thoughts is construed anti-individualistically. This section contains (...) a detailed and useful discussion not only of how we are to understand privileged access, but also of epistemological issues of more general import, such as the connection between knowledge and reliability. The second section focuses on various aspects of the problem of anti-individualism and reasoning, including an extensive discussion of the relation between anti-individualism and a Fregean account of content. The final section discusses the so-called reductio argument against compatibilism (i.e. the view that anti-individualism is compatible with a priori knowledge of one’s own thoughts), according to which compatibilism implies that we can have a priori knowledge of certain facts about the world that, intuitively, are not knowable that way. The book is very clearly written and structured. Readers unfamiliar with the debate will get a good sense of its broad contours and the various positions taken. Brown starts out by distinguishing different forms of anti-individualism. This is very helpful since it is quite clear that the term has come to be rather carelessly used, as if it referred to one particular thesis, whereas in fact a number of loosely related positions are labeled ‘antiindividualist’. At the outset she distinguishes three familiar anti-individualist theses: natural kind anti-individualism, social anti-individualism, and singular anti-individualism. These.. (shrink)