The so-called ‘possibility proof’ in Kant's pre-CriticalBeweisgrundhas been widely discussed in the literature, and it is a common view that he never really abandoned it. As I shall argue, this reading is mistaken. I aim to show that the natural illusion in theCritique of Pure Reason, which is usually taken to be the possibility proof turned into a transcendental illusion, has both a different conclusion and a different argument than the possibility proof. Rather, what remains fromBeweisgrundis what I will call (...) the ‘proofa posteriori’, which theCritiqueturns into a transcendental illusion that is of regulative use for reason. (shrink)

This paper examines Kant’s treatment of the design argument for the existence of God, or physicotheology. It criticizes the interpretation that, for Kant, the assumption of intelligent design satisfies an internal demand of inquiry. It argues that Kant’s positive appraisal of physicotheology is instead better understood on account of its polemical utility for rebutting objections to practical belief in God upon which Kant’s ethicotheological argument rests, and thus as an instrument in the transition from theoretical to practical philosophy. Kantian physicotheology (...) plays this role a) by criticizing alternative speculative accounts of the ground of nature, and b) by analogizing from the structure of finite rational agency in order to represent more clearly the action of an ideal agent. (shrink)