Only if the contestant waits until the light goes on (what Watson has to do). If the human anticipates the moment the light will go on he can be _much_ faster.

Only if the contestant waits until the light goes on (what Watson has to do). If the human anticipates the moment the light will go on he can be _much_ faster. Or he can be too fast and get the delay - well, that's the risk. The whole discussion looks fishy. Yesterday, the consensus seemed to be that Watson was at a disadvantage because of it's build in buzzer delay and the fact that it has to wait for the visual clue. Today, when Watson performed better, the consensus (at the moment) seems to be the opposite. So, the system hasn't changed, but the better Watson performs the more opinions are brought forward why this is an "unfair" contest.