... metaphysics.Some people believe that the age of metaphysics is pastand that what metaphysicians aspire to achieve is an imposs-ible dream. They claim that it is an illusion to suppose thathuman beings can ... examina-tion we see that it is logically impossible to change the past,that is, to bring it about that what has happened has nothappened. So too, then, we cannot conclude that it really ispossible ... chapters 3 and 4, I move on to discuss certain gen-eral theories of the nature of mental states and someattempts to explain how mental states can have content – thatis, how they can apparently...