Some of us imbue probability with emotion. It becomes luck: chance that has suddenly acquired a valence, positive or negative, fortuitous or unfortunate. Good or bad luck. A lucky or unlucky break. Some of us invest luck with meaning, direction, and intent. It becomes fate, karma, kismet—chance with an agenda. It was meant to be. Some even go a step further: predestination. It was always meant to be, and any sense of control or free will we may think we have is pure illusion.