We've all experienced it: a moment of sudden, unexplained certitude: go left, not right, says a voice in your head; stay home from work today, or pause a second longer at this traffic light. For most of us, these small, inexplicable moments come and go. But why do they exist? In tonight's episode, Ben, Matt and Noel explore why some radical physicists believe what we call 'intuition' may just be a message from the future.