Descartes: The Man Who Doubted Everything (And What He Found When He Did)

In the winter of 1619, a 23-year-old French soldier sat in a heated room during a German snowstorm and had three dreams that, he later claimed, set his entire life's mission. Eighteen years later, he published a method for rebuilding all human knowledge from scratch by doubting everything that could possibly be doubted. This episode covers the cogito, the deceiving demon, mind-body dualism, and the correspondent who spotted the flaw in his argument before anyone else did. ▶ Watch next: Spinoza: Excommunicated for Saying God Is Nature (And Einstein Agreed) https://www.youtube.com/watch?v=UuURLvLHY48 Chapters: 0:00 The Soldier in the Stove-Room: November 10, 1619 4:37 The Dutch Republic and the Problem of Knowledge 10:30 The Discourse: Autobiography as Philosophy 16:12 The Meditations: Six Days to Rebuild the Universe 21:30 The Cogito: The One Thing Doubt Cannot Reach 26:13 Mind, Body, and the Princess Who Saw the Problem 29:26 The Inheritance: What Descartes Started and Could Not Finish 35:05 Quiz Time 36:51 Key Takeaways #explained #learn #2026 --- Disclosure The avatars and voices in this video are AI-generated. All content -- research, scripts, lesson design, and the custom video engine -- is created by a CISSP, CISM, and PMP certified professional with a Master's in Project Management, a B.S. in Information Technology, and a Doctorate in Business Administration in progress. This channel exists to make learning accessible and straightforward. Educational history-of-ideas series. This channel does not represent any university, religious tradition, or political viewpoint. The series presents what philosophers argued and how those arguments shaped both modern science and modern religion. Faith is personal, doubt is personal — this series presents the historical record of the arguments, not theology or atheism.