 Another set of issues concerns the metaphysics of mind. Some have wondered if EXT and SK absurdly allow armchair knowledge of Fodor’s (1975) Language of Thought Hypothesis (Davies 1998). Others have suggested that the Language of Thought Hypothesis falsifies SK, assuming EXT (Boghossian 1989, p. 6, Bonjour 1991). Further, some writers have worried that if one can know what one thinks, then one can know that one thinks. If so, then the ability to armchair know one’s own thoughts would too easily refute eliminativism about the mental (Dretske 2003a; 2003b; 2004, Bernecker 1998; 2004b, Jacob 2004, Parent 2017, ch. 9; some papers in Smithies &amp; Stoljar 2012 are also relevant).