What Was There Before Time Began

00:00 - The Question of "Before" 00:24 - Augustine: Time as Part of Creation 03:55 - Kant: The Antinomy of Pure Reason 06:16 - Lemaître and the Primeval Atom 09:14 - The Steady State Rival and Cosmic Microwave Background 14:04 - Hawking: Singularities and Imaginary Time (No-Boundary Proposal) 17:41 - Veneziano & Gasperini: Pre-Big Bang String Cosmology 19:53 - Cyclic & Ekpyrotic Models (Steinhardt & Turok) 23:18 - Penrose: Conformal Cyclic Cosmology (CCC) 26:13 - Eternal Inflation and the BGV Theorem (Borde, Guth, Vilenkin) 29:24 - The Shape of What We Do Not Know