PGS - Scepticism Philosophy Gets Schooled

Part 1: Scepticism: definition and purpose, brains in vats, scepticism vs. normal disbelief.  Part 2 (25min25sec): Descartes: waves of doubt and his responses.  Part 3 (45min45sec): empiricist responses (Locke, Berkeley and Russell), and reliabilism.  Beth Mackintosh and Ben Jones chat with Simon Kirchin.  [Music by Alex Grohl]