The Innovation Enigma - Is the current growth crisis a result of decades of technological stagnation in a risk-averse society? A dynamic Oxford Union debate about innovation and the coming technological deficit involving Garry Kasparov, 13th world chess champion, writer and political activist; Peter Thiel, technology entrepreneur, investor and philanthropist; Professor Kenneth Rogoff, Thomas D. Cabot Professor of Public Policy and Professor of Economics at Harvard University; and Mark Shuttleworth, technology entrepreneur and founder of the Ubuntu project.