Naval Let's not Talk Falsely

In this groundbreaking book, David Deutsch argues that explanations have a fundamental place in the universe and that improving them is the basic regulating principle of all successful human endeavor. The book takes readers on a journey through various fields of science, history of civilization, art, moral values, and the theory of political institutions. Deutsch explains how we form new explanations and drop bad ones, and discusses the conditions under which progress, which he argues is potentially boundless, can and cannot happen. He emphasizes the importance of good explanations, which he defines as those that are 'hard to vary' and have 'reach', and argues that these explanations are central to the Enlightenment way of thinking and to all scientific and philosophical progress.

In 'The Fabric of Reality', David Deutsch explores a four-strand theory of everything, integrating Hugh Everett's many-worlds interpretation of quantum physics, Karl Popper's epistemology, Alan Turing's theory of computation, and Richard Dawkins's evolutionary theory. The book discusses the implications of these theories, including the concept of the multiverse, quantum computers, time travel, and the ultimate fate of the universe. Deutsch argues that these theories, when taken literally and jointly, reveal a unified, objective, and comprehensible fabric of reality.

The book follows Arthur Dent, an ordinary Englishman, whose house and planet are about to be demolished. He is rescued by his friend Ford Prefect, an alien researcher for the 'Hitchhiker's Guide to the Galaxy'. Together, they embark on a journey through space, encountering various characters such as Zaphod Beeblebrox, the two-headed, three-armed president of the galaxy, Trillian, a human woman, and Marvin, a paranoid android. The story involves their adventures on the spaceship Heart of Gold, which has an Infinite Improbability Drive, and their quest to understand the ultimate question of life, the universe, and everything, which is revealed to be '42'. The novel is known for its humor, satire, and imaginative storytelling.