Complexity theory is defined as the study of complexity and of complex systems. In geography, this theory may be applied in various ways. I thought of complexity theory in geography as the complexity of nature and interactions in an environment. For example, plants in an ecosystem: it is very complex with all the many different plants and their roles in the ecosystem. I also see the complexity theory applied in my own environment, for example, at school on campus. When people are leaving their class at the time it ends, I notice every time that students move in clumps as they’re walking out, and then spread out into their own paths. When they get right out of class, its very chaos. Once students take their own route, or path, it gets less chaos.