Online research in philosophy

The question of whether externalism about mental content is compatible with privileged access is a question of ongoing concern within philosophy of mind. Some philosophers think that Tyler Burge's early work on what he calls "basic self-knowledge" shows that externalism and privileged access are compatible. I critically assess this claim, arguing that Burge's work does not establish the compatbility thesis.

According to the expressive theory of communication, the primary function of language is to enable speakers to convey the content of their thoughts to hearers. According to Tyler Burge's social externalism, the content of a person's thought is relative to the way words are used in his or her surrounding linguistic community. This paper argues that Burge's social externalism refutes the expressive theory of communication.

The main aim of this paper is to show that there is one version of supervenience of the mental on the physical which is entailed by token-token identity (I call this version change-supervenience); and to establish that of the other better known versions of supervenience in the literature (which I call difference-supervenience), none are so entailed. One consequence of this is that Burge's thought experiments while successful in refuting difference-supervenience cannot in themselves refute identity thesis. However, the introduction of change supervenience leads me to devise an analogous thought experiment against change-supervenience, thus refuting identity thesis as well.

Sarah Sawyer has challenged my claim that social externalism depends on the assumption that individuals have an incomplete grasp of their own concepts. Sawyer denies that Burge's later sofa thought-experiment relies on this assumption: the unifying principle behind the thought-experiments supporting social externalism, she argues, is just that referents play a role in the individuation of concepts. I argue that Sawyer fails to show that social externalism need not rely on the assumption of incomplete understanding. To establish the content externalist conclusions, further considerations are required, and these do commit the externalist to the assumption of incomplete understanding.

Tyler Burge's (1979) famous thought experiment concerning 'arthritis' is commonly assumed to show that all ascriptions of content to beliefs and other attitudes are dependent for their truth upon facts about the agent's social and linguistic environment. It is also commonly claimed that Burge's argument shows that Putnam's (1975) result regarding natural kind terms applies to all general terms whatever, and hence shows that all such terms have wide meanings.1 But I wish to show here, first, that neither Burge's initial thought experiment nor a second type of example that Burge describes supports either of these conclusions. Second, I will identify the proper conclusion to draw from Burge's discussion and show that this conclusion does not really pose a serious problem for individualism about the mental. And finally, I will argue that Burge's discussion does not in fact provide a conclusive reason for believing its proper conclusion.

Tyler Burge has argued that a necessary condition for individual's having many of the thoughts he has is that he bear certain relations to other language users. Burge's conclusion is based on a thought experiment in which an individual's social relations are imagined, counterfactually, to differ from how they are actually. The result is that it seems, counterfactually, the individual cannot be attributed many of the thoughts he can be actually. In the article, an alternative interpretation of Burge's thought experiment is offered on which the intuitions Burge evokes can be accepted while his conclusion about the social character of thought is denied. The alternative interpretation given, it is then argued that it is preferable to Burge's.