Intuitions, Externalism, and Conceptual Analysis

Semantic externalism about a class of expressions is often thought to make conceptual analysis about members of that class impossible. In particular, since externalism about natural kind terms makes the essences of natural kinds empirically discoverable, it seems that mere reflection on one's natural kind concept will not be able to tell one anything substantial about what it is for something to fall under one's natural kind concepts. Many hold the further view that one cannot even know anything substantial about the reference-fixers of one's natural kind concepts by armchair reflection. In this paper I want to question this latter view and claim that, because of the way our standard methodology of doing theories of reference relies on semantic intuitions, typical externalists in fact presuppose that one can know the reference-fixers of one's natural kind concepts by mere armchair reflection. The more interesting question is how substantial such knowledge can be. I also take some steps toward answering this question

Semantic Burden-Shifting and Temporal Externalism

Temporal externalism is the view that the meanings and extensions of linguistic expressions can be partly determined by contingent linguistic and/or conceptual developments that take place after the time of utterance. In this paper, I first clarify what it would take for temporal externalism to be true, relying on the notion of burden-shifting dispositions. I then go on to argue that existing thought experiments give us reason to expect that temporal externalism can be true of some natural kind terms, and present a new thought experiment suggesting it can also be true of some proper names

On Deriving Essentialism from the Theory of Reference

Causal theories of reference for natural kind terms are widely agreed to play a central role in arguments for the claim that theoretical identity statements such as “Water is H2O” are necessary, if true. However, there is also fairly wide-spread agreement, due to the arguments of Nathan Salmon (in Reference and Essence), that causal theories of reference do not alone establish such essentialism about natural kinds: an independent, non-trivial essentialist premise is also needed. In this paper I will question this latter agreement. I will argue that there is an independently attractive explanation of why such identity statements are metaphysically necessary, if true: an explanation which relies on assumptions about the semantics of natural kind terms, general philosophical assumptions about reference, and straightforward empirical assumptions, but presupposes no non-trivial essentialist premises