 Note that all the construals of the second condition appear to put pressure on dispositionalism over and above that exerted by the extensionality condition. Prima facie, dispositional facts are facts about what we will or would do, not about what we ought to do; dispositional facts appear not to be essentially justificatory or hypothetically prescriptive; dispositions do not justify or rationalise their manifestations, and in making semantic judgements we do not typically engage with facts about our linguistic dispositions; lastly, it is unclear how a dispositional account of meaning could be rendered consistent with its intuitive first-person epistemology. See  section 4  for further discussion of dispositionalism.