This lecture discusses key ideas from the 18th century philosopher Immanuel Kant's work, The Prolegomena to Any Future Metaphysics. Specifically it focuses on his discussion in the Third Part Of The Transcendental Problem: How is metaphysics in general possible? Specifically this bears upon his discussion of the cosmological ideas, which Kant frames in terms of antinomies of pure reason. Two of these are "mathematical" and concern limits of space and time, and simplicity or composition of things. Two of these are "dynamical" and concern freedom or causal determinism, and necessity and contingency To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3,000 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Kant's Prolegomena to Any Future Metaphysics - amzn.to/49pc1Xm