Chaos Theory is the science of surprises; of the nonlinear and unpredictable. It basically teaches us to expect the unexpected.
It deals with nonlinear things that are effectively impossible to predict or control, like turbulence, weather, the stock market, our brain states, and so on. Recognizing the chaotic, fractal nature of our world can give us new insight, power and wisdom. For instance, by understanding how our ecosystems, our social systems and our economic systems are interconnected can help us avoid actions which may end up being detrimental to our long-term well-being.
- Source: Fractal Foundation