Paul Davies & Niels Henrik Gregersen 
Information and the Nature of Reality 
From Physics to Metaphysics

Many scientists regard mass and energy as the primary currency of nature. In recent years, however, the concept of information has gained importance. Why? In this book, eminent scientists, philosophers and theologians chart various aspects of information, from quantum information to biological and digital information, in order to understand how nature works. Beginning with an historical treatment of the topic, the book also examines physical and biological approaches to information, and its philosophical, theological and ethical implications.