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Brain in a vat
H. Putnam: Most Noted for..
In the field of epistemology, he was known for the critique of "brain in a vat" thought experiment. This thought experiment provides a strong argument for epistemological skepticism, but Putnam challenged its validity. Putnam himself uses the example to argue for a truth theory that essentially side-steps the problem of skepticism. “Brain in a Vat.” Philosophy Index, www.philosophy-index.com/putnam/brain-vat/.
