7:55 RE4DINGS: What We Cannot Know by Marcus du Sautoy 7:11 What Did Ancient Humans Do All Day? 9:27 6 Most Mysterious Discoveries Scientists Cant Explain 5:42 The language of lying — Noah Zandan 5:20 The paradox at the heart of mathematics: Gödel's Incompleteness Theorem - Marcus du Sautoy 12:08 Questions No One Knows the Answers to (Full Version) 3:23 What If You Cannot Know Anyone? 0:51 Understanding science: What we cannot know (Free Course Trailer)