The Four-Dimensional Human by Laurence Scott, Shortlisted for the Samuel Johnson prize for non-fiction

Martha Kearney speaks to Laurence Scott, whose book on our digital lives, 'The Four Dimensional Human', has been shortlisted for the Samuel Johnson prize for non-fiction.

Martha asks Laurence about the impact social media is having on our social lives and sense of self. The interview begins with Laurence reading an excerpt from his work.