On Being a Lonely Brain-in-a-Vat: Structuralism, Solipsism, and the Threat from External World Skepticism

Analytic Philosophy (forthcoming)
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Abstract

David Chalmers has recently developed a novel strategy of refuting external world skepticism, one he dubs the structuralist solution. In this paper, I make three primary claims: First, structuralism does not vindicate knowledge of other minds, even if it is combined with a functionalist approach to the metaphysics of minds. Second, because structuralism does not vindicate knowledge of other minds, the structuralist solution vindicates far less worldly knowledge than we would hope for from a solution to skepticism. Third, these results suggest that the problem of external world skepticism should perhaps be construed as two different problems, since the problem might turn out to require two substantively different solutions, one for knowledge of the kind that is not dependent on other minds and one for knowledge that is.

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Grace Helton
Princeton University

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References found in this work

Computing machinery and intelligence.Alan M. Turing - 1950 - Mind 59 (October):433-60.
The content and epistemology of phenomenal belief.David Chalmers - 2002 - In Aleksandar Jokic & Quentin Smith (eds.), Consciousness: New Philosophical Perspectives. New York: Oxford University Press. pp. 220--72.
Structuralism as a Response to Skepticism.David J. Chalmers - 2018 - Journal of Philosophy 115 (12):625-660.

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