Henry Jackman

It has become increasingly popular to suggest that non-individualistic theories of content undermine our purported a priori knowledge of such contents because they entail that we lack the ability to distinguish our thoughts from alternative thoughts with different contents. However, problems relating to such knowledge of 'comparative' content tell just as much against individualism as non-individualism. Indeed, the problems presented by individualistic theories of content for self-knowledge are at least, if not more, serious than those presented by non-individualistic theories. Consequently, considerations of self-knowledge give one no reason to embrace individualism. If anything, they give one reason to reject it

Those sympathetic to the naturalistic side of James hope that his critique of ‘philosophical materialism’ can be separated from those elements of his thinking that are essential to his pragmatism. Such a separation is possible once we see that James’s critique of materialism grows out of his views about its incompatibility with the existence of objective values. Objective values (as James understands them) are incompatible, however, not with materialism in its most general form, but rather with materialism that understood the ‘material world’ in terms of the sciences of the late nineteen hundreds. In particular, one could not defend the potential objectivity of value in the way that James hoped if one endorsed the particular ‘pessimistic’ cosmology characteristic of the sciences at the turn of the last century. Consequently, if one rejects certain ‘empirical assumptions’ associated with the science of James’s day, the possibility of a type of ‘melioristic materialism’ opens up, and this sort of materialist could still understand value in the way that James proposes.

NB: This paper has been largely displaced by my: “Externalism, Metasemantic Contextualism and Self-Knowledge”, in Goldberg, (ed.) Externalism, Self-Knowledge and Skepticism. New York: Oxford University Press, 2015, pp. 228-247. // While straightforwardly ambiguous words like “bank” and obviously indexical words like “I” are unproblematically treated as referring to different things in different contexts, such variations are displayed by terms that seem neither ambiguous nor indexical. This paper will argue that traditional accounts of word meaning (in which a single fixed meaning is attached to each entry in one’s ‘mental lexicon’) have problems accounting for how the referent of a non-ambiguous/non-indexical term can shift from context to context, while a moderate version of semantic holism can do so by understanding the comparative weight of the meaning-constitutive beliefs as itself something which can vary from context to context.

When we interpret someone in terms of their beliefs and desires, we are doing something other than merely describing them, but it is far from clear what this something else is. As Dennett puts it, while there is a growing consensus about the "not-purely-descriptive nature of intentional attribution," there remains considerable disagreement over which norms govern the play of this "dramatic interpretation game." This paper will discuss three candidates for specifying the content of these norms, truth, rationality and humanity. It will argue that while truth has frequently been taken to be the least plausible candidate, once the regulative rather than constitutive status of these norms are recognized, it turns out to be the best one. It will then close with a discussion of the 'indirect' role that rationality constraints can still be seen to play in a theory of belief.

Hillary Putnam has famously argued that we can know that we are not brains in a vat because the hypothesis that we are is self-refuting. While Putnam's argument has generated interest primarily as a novel response to skepticism, his original use of the brain in a vat scenario was meant to illustrate a point about the "mind/world relationship." In particular, he intended it to be part of an argument against the coherence of metaphysical realism, and thus to be part of a defense of his conception of truth as idealized rational acceptability. Putnam's conclusions about the scenario are, however, actually out of line with central and plausible aspects of his own account of the relationship between our minds and the world. Reflections on semantics give us no compelling reason to suppose that claims like "I am a brain in a vat" could not turn out to be true.