Images from the ΒιΆΉΤΌΕΔ Radio 3 Free Thinking Festival of Ideas: The Limits of Knowledge at Sage Gateshead from Friday 31 October until Sunday 2 November 2014
The ideas shaping our lives today - with artists and thinkers in debates and interviews.
ΒιΆΉΤΌΕΔ Radio 4
