Among the great ironies of quantum mechanics is not only that its conceptual foundations seem strange even to the physicists who use it, but that philosophers have largely ignored it. Here, Bernard d’Espagnat argues that quantum physics—by casting doubts on once hallowed concepts such as space, material objects, and causality-demands serious reconsideration of most of traditional philosophy.
On Physics and Philosophy is an accessible, mathematics-free reflection on the philosophical meaning of the quantum revolution, by one of the world’s leading authorities on the subject. D’Espagnat presents an objective account of the main guiding principles of contemporary physics-in particular, quantum mechanics-followed by a look at just what consequences these should imply for philosophical thinking.
The author begins by describing recent discoveries in quantum physics such as nonseparability, and explicating the significance of contemporary developments such as decoherence. Then he proceeds to set various philosophical theories of knowledge—such as materialism, realism, Kantism, and neo-Kantism—against the conceptual problems quantum theory raises. His overall conclusion is that while the physical implications of quantum theory suggest that scientific knowledge will never truly describe mind-independent reality, the notion of such an ultimate reality—one we can never access directly or rationally and which he calls 鈥渧eiled reality鈥�—remains conceptually necessary nonetheless.
"Bernard d'Espagnat eschews the technical philosophical and mathematical jargon . . . while nonetheless getting deeply into the consistency and plausibility of significant metaphysical claims. For all collections on the philosophy of science. . . . Highly recommended."鈥�Choice
"In this valuable work, Bernard d'Espagnat brings his considerable expertise in contemporary physics to bear on the difficult philosophical issues arising from the current understanding of the subatomic domain."鈥擳homas Oberdan, Isis
"Written in a very readable style, without an overload of mathematical equations,
Of Physics and Philosophy unfolds the exotic features of quantum physics to the accompaniment of philosophical commentary. It is without doubt a work of immense scholarship, and will probably hold its own till the mysteries in the field are adequately understood. D'Espagnat's scholarship is helping understand the bizarre implications of quantum theory in investigating everything from free will and the paranormal to the enigma of consciousness."鈥擲udhirendar Sharma, Caravan
"This book is a monument to d'Espagnat's excellent work and style; it is surely the most complete book to have been written on this subject and one likely to last a long time, at least until we come to fully understand the remaining mysteries in the field."鈥擱oland Omn猫s, Professor Emeritus of Theoretical Physics, Universit茅 de Paris-Sud
"Bernard d'Espagnat is an accomplished theoretical physicist and philosopher, whose two disciplines are interrelated in the present book. He conclusively argues that features of quantum mechanics鈥攑articularly the Uncertainty Principle, the nonlocality exhibited by entangled systems, and the measurement problem鈥攔evolutionize epistemology and metaphysics. His novel and lucid philosophy, called 'veiled realism,' criticizes Kant's doctrine of synthetic a priori knowledge but shares the thesis that scientific knowledge provides empirical regularities while pointing to an underlying 'noumenal' reality whose structure is not revealed."鈥擜bner Shimony, Professor Emeritus of Philosophy and Physics, Boston University
"With exceptional scientific, historical, and philosophical insights, d'Espagnat examines the implications of recent developments in quantum physics for philosophy and the implications of philosophical reflections for the understanding of fundamental physics. D'Espagnat's book not only challenges ingrained ways of thinking; it is indeed a visionary and critical reorientation for both physics and philosophy."鈥擳ian Yu Cao, Boston University
"D'Espagnat has performed an intellectual feat by distilling the essential conceptual puzzles of quantum mechanics into a few core principles without relying on any mathematical formalism, and in a very readable style at that. At the same time, this book is not some trendy everyman's guide to the exotic features of quantum physics, with some philosophical commentary鈥攂ut a work of mature scholarship."鈥擩effrey Bub, University of Maryland, author of Interpreting the Quantum World
"Here, d'Espagnat discusses virtually all the central philosophical issues related to quantum mechanics and its interpretation. The book is nontechnical, presupposing no previous knowledge of science or philosophy. It is a pleasure to read."鈥擜ndrew Z. Wayne, University of Guelph, coeditor of Ontological Aspects of Quantum Field Theory
"This book takes the theme of d'Espagnat's influential Veiled Reality and develops it into a 'world view,' as he calls it. This extensive treatment is rich in detailed arguments, deft rebuttal of rival viewpoints, and historical perspectives."鈥擜rthur G. Zajonc, Amherst College, coauthor of The Quantum Challenge
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