 Not all opponents of psychologism accept the suggestion that explanatory reasons in rationalisations are mental states, or facts about them, even for error cases. For example, in his 2000 book, Dancy denies this and argues that we can always explain an action by specifying the reason for which it was done, even when an agent acted on a false consideration. The problem with this view is that it commits Dancy to the conclusion that some reason explanations are non-factive: an explanation may be true even though what does the explaining is not. For instance, it commits him to saying that what explains why I took my umbrella is that it was raining, even though it was not raining. To most philosophers this is an unacceptable conclusion: surely true explanations require the truth of both the explanandum (what is explained: that I took my umbrella) and the explanans (that it was raining). In a recent paper (2014), Dancy has abandoned his earlier view that reason explanations can be non-factive but he still retains his opposition to psychologism for explanatory reasons. So he still maintains that we can always explain an action by specifying the reason for which it was done, even when the “reason” is some falsehood that the agent believed and in light of which he acted. In those cases, he says,