 On the conception of the Tractatus, objects are to be discovered by grasping fully analysed propositions, presumably with the awareness that they are fully analysed. But since that is so, we shall not have fully explained how we are supposed to be able to discover the simples unless we explain how, in practice, we can know we have arrived at the final analysis of a proposition. But on this point, unfortunately, Wittgenstein has little to say. In fact, the only hint he offers is the rather dark one contained in Tractatus 3.24: 