Originally published in 2004. Thanks to computer simulations science is beginning to understand complex natural processes such as the weather, earthquakes and the evolution of life. The Significance of Complexity deals with the importance of the sciences of complexity - for the humanities and theology. First, three scientists explain the science of complexity and illustrate it with concrete examples. Second, two scholars consider the concept of complexity and possible applications of complexity theory within the humanities, e.g. as a tool to understand the interplay between the artist, the work of art and the user in interactive art. Finally, three theologians ask what can be learned from the science of complexity for a religious understanding of humankind and the world. The Significance of Complexity is a pioneering work exploring the import of a fascinating new branch of science for human self-understanding. It caters for all those who are interested in relating science to the quest for the meaning of life.