According to McDowell, the overall problem of Kant’s conception of experience is, that it treats the forms of intuition as being external to categorial unity of apperception, keeping us in the end from explaining how the independent world we are related to in experience can be understood as the “medium” within which apperceptive spontaneity is freely excercised. It is here that he sees the move from Kant to Hegel as being appropriate, offering an understanding of spatiality and temporality as elements “within the free self-development of reason”