This book offers a comprehensive critique of the Kantian principle that 'objects conform to our cognition' from the perspective of a Copernican world-view which stands diametrically opposed to Kant's because founded on the principle that our cognition conforms to objects. Concerning both Kant's ontological denial in respect of space and time and his equivalence thesis in respect of 'experience' and 'objectivity', Ryall argues that Kant's transcendental idealism signally fails to account for the one thing that is essential for Copernicus and the only thing that would validate a comparison...