Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Nov 18, 2014
The remarkable mind that brought you QI, Blackadder and Spitting Image asks one of the world’s simplest but most significant questions – what do we really need to know? What should we teach our children, and what important information should all adults have at their disposal? Legendary producer John Lloyd turns his curiosity to knowledge itself, and questions whether intelligence is really all it's cracked up to be.