After suffering defeat to AI at Go and Dota 2 , the battle between man and machine was starting to look a little one-sided. But a human has finally notched up a win against our future robot overlords. Champion debater Harish Natarajan triumphed in a live showdown against IBM's Miss Debater AI at the company's Think Conference in San Francisco on Monday. The 2012 European Debate winner and IBM's black monolith exchanged quick retorts on pre-school subsidies for 25 minutes before the crowd hailed Natarajan the victor. You can watch the debate in full below.