A worry that has been raised for Kant's ambitious argument in the "Transcendental Deduction" of the Critique of Pure Reason is that, if it is successful, it proves too much. In that section, Kant claims to have established that a certain purely formal self-consciousness - the mere consciousness that my thoughts and judgments are mine - guarantees the objectivity of those thoughts and judgments, that is, their claim to represent the world as it is.