**The Beginning of Infinity** is a New York Times bestseller that offers a provocative and imaginative exploration of the nature and progress of knowledge. In this groundbreaking work, award-winning physicist David Deutsch posits that explanations hold a fundamental place in the universe. He argues that the improvement of these explanations is the basic regulating principle behind all successful human endeavors. Deutsch takes the reader on an expansive journey through every fundamental field of science, as well as through the history of civilization, art, moral values, and the theory of political institutions. He examines how we form new explanations and discard ineffective ones, delineating the conditions under which progress—which he views as potentially boundless—can and cannot occur. **The Beginning of Infinity** is a hugely ambitious and highly original book. It explores and establishes deep connections between the laws of nature, the human condition, knowledge, and the possibility for progress. This work is a testament to the power of understanding and the endless scope of human curiosity.