Following his talk at the Ri, theoretical physicist Sean Carroll takes questions from a packed audience in the famous Faraday Theatre. Chaired by science journalist, Alok Jha.<br /><br />See the full talk: https://www.youtube.com/watch?v=RwdY7Eqyguo<br />Watch our interview with Sean: https://www.youtube.com/watch?v=sSLGaUQRWHg<br /><br />Check out Sean's website: http://preposterousuniverse.com<br /><br />The Ri is on Twitter: http://twitter.com/ri_science<br />and Facebook: http://www.facebook.com/royalinstitution<br /><br />Subscribe for the latest science videos: http://richannel.org/newsletter