In Collapse of Complex Society by Dr. Joseph Tainter, he makes really intriguing points about the shape and function of society. Dr. Tainter argues that society becomes more advance as they become more and more complex. And with many historical references he describes how great societies such as the Roman empire had “collapse” due to lack of growth and advancement and hence reaches a point of rapid simplification. Dr. Tainter’s arguments and example are extremely revolutionary and uses common knowledge and facts to explain a complex theory. It is extremely thought provoking, entertaining, and educational! This lecture has made me think about the past and future of our nation a differently in terms of innovation on energy, and its impact on the economy, which is the very foundation of every civilization.