In his book Sapiens, Yuval Noah Harari asks why we should study history if history is not deterministic. If history was deterministic, then we would be able to look back in time at what has happened and determine where things will go next. We would be able to see clear causal links between events of the past and easily adjust our behaviors and decisions moving forward. If history was truly deterministic, then the trite saying, “those who don’t understand history are doomed to repeat it,” would actually mean something.
But history is not deterministic. There are random changes, chance events, and other unpredictable factors that influence everything from technological development, to GDP, and even marriage and family structures. We can look back and create a compelling narrative, but the causal power of our explanations is extremely low. We can see the how of history, that is how things unfolded, but not the why, not the causal structures underlying everything.
And that makes it reasonable to ask why we should bother studying history at all. Harari responds to this inquiry by writing, “history is not a means for making accurate predictions. We study history not to know the future but to widen our horizons, to understand that our present situation is neither natural nor inevitable, and that we consequently have many more possibilities before us than we imagine.”
History helps us see that racial hierarchies, monarchies, and other aspects of life and culture are based on little more than chance. It helps us understand that humans can live in more ways than we imagine and can have more experiences than we imagine. History doesn’t help us predict what is going to happen in the future and doesn’t tell us how we should live now, but it does help us see that the world is not as rigid as we may imagine. History should expand our knowledge of the possible and humble us in the choices and decisions we make.