Science progresses by breaking the rules of the past. New observations need new theories to explain them. Einstein’s Theory of Relativity made sense of observations that Newton’s Laws of Motion could not. But how can we distinguish between the brilliant ideas that change our view of the world and those that are plain wrong? And does that make science too cautious to try out new ideas?Joining Free Thinking presenter Rana Mitter are:Professor Carlos Frenk, founding Director of the Institute for Computational Cosmology at Durham University and winner of the Gold Medal of the Royal Astronomical Society in 2014Jim al-Khalili, Professor of Physics at the University of Surrey and presenter of BBC Radio 4’s The Life Scientific and TV documentaries. His books include Paradox: The Nine Greatest Enigmas in Science, Black Holes, Wormholes and Time Machines and Quantum: A Guide For The PerplexedDr Katy Price from Queen Mary, University of London, author of Loving Faster Than Light: Romance and Readers in Einstein’s UniverseDr Tom Shakespeare from the University of East Anglia, who co-founded the Café Scientifique network, which now has hundreds of affiliates in UK and worldwide.Recorded in front of an audience at the Free Thinking Festival at Sage Gateshead Producer: Torquil MacLeod