My method to eliminate the buzzer issue: Allow both contenders to press the button within the first 2 seconds and, if they both buzz in within the 2 second win

My method to eliminate the buzzer issue: Allow both contenders to press the button within the first 2 seconds and, if they both buzz in within the 2 second window, the human answers first, because Watson could be trusted to "lock-in" it's answer. Points are issued to whomever gets the answer right, allowing for both to receive or lose points on the same question.