Online research in philosophy

A typical strategy of those who seek to show that externalism is compatible with authoritative knowledge of content is to show that externalism does nothing to undermine the claim that all thinkers can at any time form correct and justi?ed self-ascriptive judgements concerning their occurrent thoughts. In reaction, most incompat- ibilists have assumed the burden of denying that externalism is compatible with this claim about self-ascription. Here I suggest another way to attack the compatibilist strategy. I aim to show that forming a justi?ed true self-ascriptive judgement about one.

Most content externalists concede that even if externalism is compatible with the thesis that one has authoritative self-knowledge of thought contents, it is incompatible with the stronger claim that one is always able to tell by introspection whether two of one’s thought tokens have the same, or different, content. If one lacks such authoritative discriminative self-knowledge of thought contents, it would seem that brute logical error – non-culpable logical error – is possible. Some philosophers, such as Paul Boghossian, have argued that this would present a big problem for externalism, forcing the externalist to overhaul our norms of rationality. I consider several externalist strategies to block this possibly unhappy epistemological consequence, but I argue that they all fail.

An account of the source of first-person knowledge is essential not just for phenomenology, but for anyone who takes seriously the apparent evidence that we each have a distinctive access to knowing what we experience. One standard way to account for the source of first-person knowledge is by appeal to a kind of inner observation of the passing contents of one’s own mind, and phenomenology is often thought to rely on introspection. I argue, however, that Husserl’s method of phenomenological reduction was designed precisely to find a route to knowledge of the structures of consciousness that was independent of any appeal to observation of one’s own mental states. The goals of this essay are to explicate Husserl’s method of phenomenological reduction in contemporary terms that (1) show its distance from all inner-observation accounts, (2) exhibit its kinship to and historical influence on outer-observation accounts of selfknowledge popularized by Sellars, and (3) demonstrate that a contemporary ‘cognitive transformation’ view based on Husserl’s method may provide a viable contribution to contemporary debates about the source of self-knowledge.

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.

Externalism holds, and internalism denies, that the individuation of many of an individual's mental states (e.g., thoughts about the physical world) depends necessarily on relations that individual bears to the physical and/or social environment. Many philosophers, externalists and internalists alike, believe that introspection yields knowledge of the contents of our thoughts that is direct and authoritative. It is not obvious, however, that the metaphysical claims of externalism are compatible with this epistemological thesis. Some (e.g., Burge, 1988; Falvey and Owens (F&O), 1994) have sought to dispel the worry that there is a conflict, though they admit that if such a conflict exists, it spells trouble for externalism (see, e.g., F&O, 1994, p. 108). Boghossian has argued that there is indeed a conflict between externalism and introspective knowledge of content. Surprisingly, however, he also argues that there is a conflict between internalism and introspective knowledge of content. I will defend Boghossian's claim that there is a conflict between externalism and knowledge of content, but criticize his claim that there is a conflict between internalism and knowledge of content.

The Content Sceptic argues that a subject could not have introspective knowledge of a thought whose content is individuated widely. This claim is incorrect, relying on the tacit assumption that introspective knowledge differs significantly from other species of knowledge. The paper proposes a reliabilist model for understanding introspective knowledge according to which introspective knowledge is simply another species of knowledge, and according to which claims to introspective knowledge are not, as suggested by the Content Sceptic, defeated by the mere possibility of error. This way of understanding introspective knowledge affords a robust theory of privileged access consistent with semantic externalism.

In "Externalism, Self-Knowledge and Skepticism,"' Kevin Falvey and Joseph Owens argue that externalism with respect to mental content does not engender skepticism about knowledge of content. They go on to argue that even when externalism is freed from epistemological difficulties, the thesis cannot be used against Cartesian skepticism about knowledge of the external world. I would like to raise some questions about these claims.