To further clarify my point about humans, it has been proven in the past that one person’s actions have changed entire course of history e.g. Hitler and since we know that people are unique, his actions couldnt have been predicted by any model. Even if we modelled his entire life, chaos theory states that a change in fraction of a variable would have changed entire output i.e. if he did or didn’t meet one person in his life, his entire view about world and jews could have never developed.

How is that different from unpredictability? It has been proven that every human is unique in their thoughts, behaviour and reaction to events. So it’s impossible to map all the emotions and hence it’s impossible to create any model that can predict that.