Journalist Alok Jha brings together three experts to discuss the latest philosophical and scientific thinking on how the wet stuff in our heads creates the world we experience. Featuring: Dr Anil Seth from the Sackler Centre for Consciousness Science (University of Sussex), Philosophy Professor Barry Smith (University of London) and neuropsycologist Professor Chris Frith (UCL). Watch the event here: https://www.youtube.com/watch?v=313yn0RY9QI The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter