When words are deedsWittgenstein's 'spontaneous utterances and the dissolution of the mind-body problem

According to Wittgenstein, our spontaneous utterances are not descriptions, but expressions more akin to behaviour than to language: a new sort of speech-act. Rather than conventional performatory words, spontaneous utterances are deeds through their very spontaneity. This gives language a new dimension of reflex, which, as I argue against Peter Hacker, makes the boundary porous between the categories of language and of action, thus dissolving the gap between mind and body