Speakers: Marcus du Sautoy, Robert Winston, Raphael Zarum

Mathematician Marcus du Sautoy, scientist Robert Winston and Rabbi Raphael Zarum explore the limits of human knowledge to probe whether there is anything we truly cannot know. Every week headlines announce new breakthroughs in our understanding of the universe, new technologies that will transform our environment and new medical advances that will extend our lives. Science offers unprecedented insight into some of the big questions that exercise us most profoundly. Are there, however, questions that will remain forever answered?