Low-probability, High-consequence Events in Life and in Shakespeare’s Macbeth

If we look at theatre as a stage where low-probability, high-consequence events play out, it will help us understand today’s crisis. But this requires reimagining the way we interpret theatre. In life, when crises break out, they are often unforeseen and unpredictable. We have mental biases, however, that compel us to come up with simplistic explanations of how they could have been prevented. Our mental biases do not admit to the action of the random element. As a result of these biases, our sense of security is misplaced.

Interpreters of theatre, like the engineers and scientists who analyze what went wrong, have these same mental biases. They look at what went wrong and find simplistic explanations. “This character had hubris,” some say. “This one was too trusty,” others say. The play becomes a moral lesson. But what if dramatists were trying to say something else? What if they were dramatizing the effects of the unexpected?

I will demonstrate this idea by reading a play we all know—Shakespeare’s Macbeth—through the lens of probability. I will argue that Shakespeare creates a world in which Macbeth’s confidence is justified. The problem is not the plan, but rather the impact of the highly improbable. The play then ceases to be a moral lesson and becomes instead a warning that the improbable may impact us more than our biases allow us to believe. The art of tragedy, I argue, talks to us in times of crisis because it simulates the effect of unknown unknowns on the stage.