now on bbc news, hardtalk‘s stephen sackur interviews best—selling author bill bryson. to hardtalk, i'm stephen sackur. sometimes it takes an outsider, armed with just a sharp eye and curiosity, to get us to see ourselves as we really are. and that would explain the enduring popularity of the american—born writer bill bryson, whose wry take on britain and the british has generated two best—selling books. now, in recent years his travels have taken him deep into the realms of science and human biology. from the mysteries of afternoon tea to the power of the human brain, what has bill bryson learned from his gentle search for understanding? bill bryson, welcome to hardtalk. i'm delighted to be here, stephen. thank you for having me. well, it's a pleasure. seems to me that you've lived a life driven by curiosity, by a determination to get explanations. ami a determination to get explanations. am i right? i get a lot of credit for that, and i'm not sure i entirely deserve it. i mean, i won't argue with you if you want to praise me for it, but i think we're all driven by cur