Hannah Fry returns to The Royal Society to investigate one of the juiciest debates in the history of science! More links below ↓↓↓ Support Objectivity on Patreon: https://www.patreon.com/objectivity Featuring mathematician and broadcaster Hannah Fry speaking with Brady. Check out Hannah's website: http://www.hannahfry.co.uk/ Hannah's Book (Hello World): https://amzn.to/2Ds1mQg Blackballed with Hannah: https://www.youtube.com/watch?v=ayzKlPIcRKU More Hannah on Numberphile: http://bit.ly/hannah_vids Subscribe to Objectivity: http://bit.ly/Objectivity_Sub Films by James Hennessy and Brady Haran Royal Society website: http://bit.ly/Royal_Society The Royal Society's own YouTube channel: null Facebook: https://www.facebook.com/ObjectivityVideos Twitter: https://twitter.com/objectivity_vid Patron thank you page: http://www.bradyharanblog.com/objectivity-patrons Objectivity T-Shirts: null