High Quality Content by WIKIPEDIA articles! Intelligent Design: The Bridge Between Science and Theology is a controversial 1999 book by William A. Dembski in which he presents an argument in support of the conjecture of intelligent design. In it, Dembski defines the term "specified complexity", and argues that instances of it in nature cannot be explained by Darwinian evolution, but instead are consistent with the notion of intelligent design. He also derives an instance of his self-declared law of conservation of information and uses it to argue against Darwinian evolution. The book is a summary treatment of the mathematical theory he presents in The Design Inference (1998), and is intended to be largely understandable by a nontechnical audience. Dembski also provides a Christian theological commentary on, and analysis of, what he perceives to be the historical and cultural significance of the ideas.