For the general terms in which the scientists have set their problem of mind and body, we philosophers have been chiefly to blame …The legend that we have told and sold runs like this. A person consists of two theatres, one bodily and one non-bodily. In his Theatre A go on the incidents which we can explore by eye and instrument.But a person also incorporates a second theatre, Theatre B. Here there go on incidents which are totally unlike, though synchronised with those that go on in Theatre A. These Theatre B episodes are changes in the states, not of bits of flesh, but of something called ‘consciousness’, which occupies no space. Only the proprietor of Theatre B has firsthand knowledge of what goes on in it. It is a secret theatre … No, what prevents us from examining Theatre B is not that it has no doors and windows but that there is no such theatre.