Abstract

On a cognitivist account of self-ascription, I can have direct, non-inferential knowledge about my own beliefs. This account makes traditionally appeal to the notion of introspection, conceived as an internal source of knowledge. At least since Wittgenstein, many philosophers have justly worried that such a notion makes it impossible to make sense of the ascription of a unified notion of belief, which can be shared with others. In this essay, I explore another method of self-ascription, which was also envisaged by Wittgenstein (and later by Gareth Evans), which I call “the method of deployment”. This method is such that I can gain knowledge about my own beliefs by attending not inwards but outwards, on the external world as I found it. Wittgenstein feared that the method of deployment would inevitably lead to solipsism. With reference to recent work in the theory of mental simulation, I try to show that Wittgenstein’s fear is ungrounded. I draw two general conclusions. First, the method of deployment does not concern self-ascription only ; it can also ground the ascription of beliefs to others. Second, what is special about self-ascription is the “ontological substrate” on which it is based. For instance, I am warranted in believing that I believe that it is raining because I am presented with the fact that it is raining, in contrast to a mere possibility. The method of deployment does not lead to solipsism if it is based on a naïve ontological distinction between facts and mere possibilities.