Author: Donald A. Crosby
Publisher: Rowman & Littlefield
ISBN: 1666906514
Category : Philosophy
Languages : en
Pages : 165
Book Description
In The Multiplicity of Interpreted Worlds: Inner and Outer Perspectives, Donald A. Crosby examines whether there is such a thing as an uninterpreted, unitary, in-itself world or if all claims about the world—whether scientific historical, cultural, communal, or individual—are necessarily partial and limited. If the latter is so, then ultimately many different worlds call for recognition, ranging in scope and reliability, but none of them—including those of the most allegedly "hard" science—either are or can be free of the limitations, disagreements, and fallibilities among even the most qualified experts in a particular field of investigation. The inward and the outward, the subjective and the objective, are thus crucially dependent on one another, and neither is finally intelligible as such apart from the other. Crosby argues that there is no such thing as a completely objective view of the world. This observation is pertinent to our treatment of other natural beings and their ecological domains because it makes us aware that they too have different relations to and perspectives on their environments or worlds in a manner similar to our own irreducibly different outlooks on such worlds from within.
The Multiplicity of Interpreted Worlds
Author: Donald A. Crosby
Publisher: Rowman & Littlefield
ISBN: 1666906514
Category : Philosophy
Languages : en
Pages : 165
Book Description
In The Multiplicity of Interpreted Worlds: Inner and Outer Perspectives, Donald A. Crosby examines whether there is such a thing as an uninterpreted, unitary, in-itself world or if all claims about the world—whether scientific historical, cultural, communal, or individual—are necessarily partial and limited. If the latter is so, then ultimately many different worlds call for recognition, ranging in scope and reliability, but none of them—including those of the most allegedly "hard" science—either are or can be free of the limitations, disagreements, and fallibilities among even the most qualified experts in a particular field of investigation. The inward and the outward, the subjective and the objective, are thus crucially dependent on one another, and neither is finally intelligible as such apart from the other. Crosby argues that there is no such thing as a completely objective view of the world. This observation is pertinent to our treatment of other natural beings and their ecological domains because it makes us aware that they too have different relations to and perspectives on their environments or worlds in a manner similar to our own irreducibly different outlooks on such worlds from within.
Publisher: Rowman & Littlefield
ISBN: 1666906514
Category : Philosophy
Languages : en
Pages : 165
Book Description
In The Multiplicity of Interpreted Worlds: Inner and Outer Perspectives, Donald A. Crosby examines whether there is such a thing as an uninterpreted, unitary, in-itself world or if all claims about the world—whether scientific historical, cultural, communal, or individual—are necessarily partial and limited. If the latter is so, then ultimately many different worlds call for recognition, ranging in scope and reliability, but none of them—including those of the most allegedly "hard" science—either are or can be free of the limitations, disagreements, and fallibilities among even the most qualified experts in a particular field of investigation. The inward and the outward, the subjective and the objective, are thus crucially dependent on one another, and neither is finally intelligible as such apart from the other. Crosby argues that there is no such thing as a completely objective view of the world. This observation is pertinent to our treatment of other natural beings and their ecological domains because it makes us aware that they too have different relations to and perspectives on their environments or worlds in a manner similar to our own irreducibly different outlooks on such worlds from within.
Many Worlds?
Author: Simon Saunders
Publisher: OUP Oxford
ISBN: 0191614114
Category : Philosophy
Languages : en
Pages : 636
Book Description
What does realism about the quantum state imply? What follows when quantum theory is applied without restriction, if need be, to the whole universe? These are the questions which an illustrious team of philosophers and physicists debate in this volume. All the contributors are agreed on realism, and on the need, or the aspiration, for a theory that unites micro- and macroworlds, at least in principle. But the further claim argued by some is that if you allow the Schrödinger equation unrestricted application, supposing the quantum state to be something physically real, then this universe is one of countlessly many others, constantly branching in time, all of which are real. The result is the many worlds theory, also known as the Everett interpretation of quantum mechanics. The contrary claim sees this picture of many worlds as in no sense inherent in quantum mechanics, even when the latter is allowed unrestricted scope and even given that the quantum state itself is something physically real. For this picture of branching worlds fails to make physical sense, let alone common sense, even on its own terms. The status of these worlds, what they are made of, is never adequately explained. Ordinary ideas about time and identity over time become hopelessly compromised. The concept of probability itself is brought into question. This picture of many branching worlds is inchoate, it is a vision, an error. There are realist alternatives to many worlds, some even that preserve the Schrödinger equation unchanged. Twenty specially written essays, accompanied by commentaries and discussions, examine these claims and counterclaims in depth. They focus first on the question of ontology, the existence of worlds (Part 1 and 2), second on the interpretation of probability (Parts 3 and 4), and third on alternatives or additions to many worlds (Parts 5 and 6). The introduction offers a helpful guide to the arguments for the Everett interpretation, particularly as they have been formulated in the last two decades.
Publisher: OUP Oxford
ISBN: 0191614114
Category : Philosophy
Languages : en
Pages : 636
Book Description
What does realism about the quantum state imply? What follows when quantum theory is applied without restriction, if need be, to the whole universe? These are the questions which an illustrious team of philosophers and physicists debate in this volume. All the contributors are agreed on realism, and on the need, or the aspiration, for a theory that unites micro- and macroworlds, at least in principle. But the further claim argued by some is that if you allow the Schrödinger equation unrestricted application, supposing the quantum state to be something physically real, then this universe is one of countlessly many others, constantly branching in time, all of which are real. The result is the many worlds theory, also known as the Everett interpretation of quantum mechanics. The contrary claim sees this picture of many worlds as in no sense inherent in quantum mechanics, even when the latter is allowed unrestricted scope and even given that the quantum state itself is something physically real. For this picture of branching worlds fails to make physical sense, let alone common sense, even on its own terms. The status of these worlds, what they are made of, is never adequately explained. Ordinary ideas about time and identity over time become hopelessly compromised. The concept of probability itself is brought into question. This picture of many branching worlds is inchoate, it is a vision, an error. There are realist alternatives to many worlds, some even that preserve the Schrödinger equation unchanged. Twenty specially written essays, accompanied by commentaries and discussions, examine these claims and counterclaims in depth. They focus first on the question of ontology, the existence of worlds (Part 1 and 2), second on the interpretation of probability (Parts 3 and 4), and third on alternatives or additions to many worlds (Parts 5 and 6). The introduction offers a helpful guide to the arguments for the Everett interpretation, particularly as they have been formulated in the last two decades.
Constructing the World
Author: David J. Chalmers
Publisher: OUP Oxford
ISBN: 0191654949
Category : Philosophy
Languages : en
Pages : 528
Book Description
David Chalmers develops a picture of reality on which all truths can be derived from a limited class of basic truths. The picture is inspired by Rudolf Carnap's construction of the world in Der Logische Aufbau Der Welt. Carnap's Aufbau is often seen as a noble failure, but Chalmers argues that a version of the project can succeed. With the right basic elements and the right derivation relation, we can indeed construct the world. The focal point of Chalmers' project is scrutability: the thesis that ideal reasoning from a limited class of basic truths yields all truths about the world. Chalmers first argues for the scrutability thesis and then considers how small the base can be. The result is a framework in "metaphysical epistemology": epistemology in service of a global picture of the world. The scrutability framework has ramifications throughout philosophy. Using it, Chalmers defends a broadly Fregean approach to meaning, argues for an internalist approach to the contents of thought, and rebuts W.V. Quine's arguments against the analytic and the a priori. He also uses scrutability to analyze the unity of science, to defend a sort of conceptual metaphysics, and to mount a structuralist response to skepticism. Based on Chalmers's 2010 John Locke lectures, Constructing the World opens up debate on central philosophical issues concerning knowledge, language, mind, and reality.
Publisher: OUP Oxford
ISBN: 0191654949
Category : Philosophy
Languages : en
Pages : 528
Book Description
David Chalmers develops a picture of reality on which all truths can be derived from a limited class of basic truths. The picture is inspired by Rudolf Carnap's construction of the world in Der Logische Aufbau Der Welt. Carnap's Aufbau is often seen as a noble failure, but Chalmers argues that a version of the project can succeed. With the right basic elements and the right derivation relation, we can indeed construct the world. The focal point of Chalmers' project is scrutability: the thesis that ideal reasoning from a limited class of basic truths yields all truths about the world. Chalmers first argues for the scrutability thesis and then considers how small the base can be. The result is a framework in "metaphysical epistemology": epistemology in service of a global picture of the world. The scrutability framework has ramifications throughout philosophy. Using it, Chalmers defends a broadly Fregean approach to meaning, argues for an internalist approach to the contents of thought, and rebuts W.V. Quine's arguments against the analytic and the a priori. He also uses scrutability to analyze the unity of science, to defend a sort of conceptual metaphysics, and to mount a structuralist response to skepticism. Based on Chalmers's 2010 John Locke lectures, Constructing the World opens up debate on central philosophical issues concerning knowledge, language, mind, and reality.
Conversations on the Plurality of Worlds
Author: M. de Fontenelle (Bernard Le Bovier)
Publisher:
ISBN:
Category : Plurality of worlds
Languages : en
Pages : 178
Book Description
Publisher:
ISBN:
Category : Plurality of worlds
Languages : en
Pages : 178
Book Description
The Many Worlds of Hugh Everett III
Author: Peter Byrne
Publisher: Oxford University Press
ISBN: 0199552274
Category : Biography & Autobiography
Languages : en
Pages : 451
Book Description
This book tells the story of Hugh Everett III (1930-1982) who invented a theory of multiple universes that has had a profound impact on physics and philosophy. Everett strove to bring a "rational" order to the interlacing worlds of nuclear war and physics, even as his personal world disintegrated because of his indulgent lifestyle. Using Everett's unpublished papers and dozens of interviews, the book paints a detailed portrait of a man who influenced foundational thinking in quantum mechanics by inventing a way of viewing the universe from inside (known as the universal wave function). In addition to his famous interpretation of quantum mechanics, Everett wrote one of the classic papers in game theory; invented computer algorithms that revolutionized military operations research; and did pioneering work in artificial intelligence. As a Cold Warrior, he designed systems that modelled human behaviour along rational lines, and yet he was largely oblivious to the emotional damage his irrational behaviour inflicted upon his family, lovers and business partners. But he left behind, in the papers on which this book is based, a fascinating record of his life, including correspondence with the leading scientific minds of the day, that illuminates the often bitter struggle over the interpretation of the mystery of measurement at the heart of quantum mechanics.
Publisher: Oxford University Press
ISBN: 0199552274
Category : Biography & Autobiography
Languages : en
Pages : 451
Book Description
This book tells the story of Hugh Everett III (1930-1982) who invented a theory of multiple universes that has had a profound impact on physics and philosophy. Everett strove to bring a "rational" order to the interlacing worlds of nuclear war and physics, even as his personal world disintegrated because of his indulgent lifestyle. Using Everett's unpublished papers and dozens of interviews, the book paints a detailed portrait of a man who influenced foundational thinking in quantum mechanics by inventing a way of viewing the universe from inside (known as the universal wave function). In addition to his famous interpretation of quantum mechanics, Everett wrote one of the classic papers in game theory; invented computer algorithms that revolutionized military operations research; and did pioneering work in artificial intelligence. As a Cold Warrior, he designed systems that modelled human behaviour along rational lines, and yet he was largely oblivious to the emotional damage his irrational behaviour inflicted upon his family, lovers and business partners. But he left behind, in the papers on which this book is based, a fascinating record of his life, including correspondence with the leading scientific minds of the day, that illuminates the often bitter struggle over the interpretation of the mystery of measurement at the heart of quantum mechanics.
On Interpretation
Author: Andrew D. Weiner
Publisher: Univ of Wisconsin Press
ISBN: 9780299178949
Category : Law
Languages : en
Pages : 296
Book Description
This title looks at past post-structuralist theory to re-examine methods of textual interpretation developed in past millennia to understand sacred, philosophical, cultural, legal, literary and artistic texts.
Publisher: Univ of Wisconsin Press
ISBN: 9780299178949
Category : Law
Languages : en
Pages : 296
Book Description
This title looks at past post-structuralist theory to re-examine methods of textual interpretation developed in past millennia to understand sacred, philosophical, cultural, legal, literary and artistic texts.
The Emergent Multiverse
Author: David Wallace
Publisher: OUP Oxford
ISBN: 0191057398
Category : Philosophy
Languages : en
Pages : 547
Book Description
The Emergent Multiverse presents a striking new account of the 'many worlds' approach to quantum theory. The point of science, it is generally accepted, is to tell us how the world works and what it is like. But quantum theory seems to fail to do this: taken literally as a theory of the world, it seems to make crazy claims: particles are in two places at once; cats are alive and dead at the same time. So physicists and philosophers have often been led either to give up on the idea that quantum theory describes reality, or to modify or augment the theory. The Everett interpretation of quantum mechanics takes the apparent craziness seriously, and asks, 'what would it be like if particles really were in two places at once, if cats really were alive and dead at the same time'? The answer, it turns out, is that if the world were like that—if it were as quantum theory claims—it would be a world that, at the macroscopic level, was constantly branching into copies—hence the more sensationalist name for the Everett interpretation, the 'many worlds theory'. But really, the interpretation is not sensationalist at all: it simply takes quantum theory seriously, literally, as a description of the world. Once dismissed as absurd, it is now accepted by many physicists as the best way to make coherent sense of quantum theory. David Wallace offers a clear and up-to-date survey of work on the Everett interpretation in physics and in philosophy of science, and at the same time provides a self-contained and thoroughly modern account of it—an account which is accessible to readers who have previously studied quantum theory at undergraduate level, and which will shape the future direction of research by leading experts in the field.
Publisher: OUP Oxford
ISBN: 0191057398
Category : Philosophy
Languages : en
Pages : 547
Book Description
The Emergent Multiverse presents a striking new account of the 'many worlds' approach to quantum theory. The point of science, it is generally accepted, is to tell us how the world works and what it is like. But quantum theory seems to fail to do this: taken literally as a theory of the world, it seems to make crazy claims: particles are in two places at once; cats are alive and dead at the same time. So physicists and philosophers have often been led either to give up on the idea that quantum theory describes reality, or to modify or augment the theory. The Everett interpretation of quantum mechanics takes the apparent craziness seriously, and asks, 'what would it be like if particles really were in two places at once, if cats really were alive and dead at the same time'? The answer, it turns out, is that if the world were like that—if it were as quantum theory claims—it would be a world that, at the macroscopic level, was constantly branching into copies—hence the more sensationalist name for the Everett interpretation, the 'many worlds theory'. But really, the interpretation is not sensationalist at all: it simply takes quantum theory seriously, literally, as a description of the world. Once dismissed as absurd, it is now accepted by many physicists as the best way to make coherent sense of quantum theory. David Wallace offers a clear and up-to-date survey of work on the Everett interpretation in physics and in philosophy of science, and at the same time provides a self-contained and thoroughly modern account of it—an account which is accessible to readers who have previously studied quantum theory at undergraduate level, and which will shape the future direction of research by leading experts in the field.
Something Deeply Hidden
Author: Sean Carroll
Publisher: Penguin
ISBN: 1524743038
Category : Science
Languages : en
Pages : 369
Book Description
INSTANT NEW YORK TIMES BESTSELLER As you read these words, copies of you are being created. Sean Carroll, theoretical physicist and one of this world’s most celebrated writers on science, rewrites the history of twentieth-century physics. Already hailed as a masterpiece, Something Deeply Hidden shows for the first time that facing up to the essential puzzle of quantum mechanics utterly transforms how we think about space and time. His reconciling of quantum mechanics with Einstein’s theory of relativity changes, well, everything. Most physicists haven’t even recognized the uncomfortable truth: Physics has been in crisis since 1927. Quantum mechanics has always had obvious gaps—which have come to be simply ignored. Science popularizers keep telling us how weird it is, how impossible it is to understand. Academics discourage students from working on the "dead end" of quantum foundations. Putting his professional reputation on the line with this audacious yet entirely reasonable book, Carroll says that the crisis can now come to an end. We just have to accept that there is more than one of us in the universe. There are many, many Sean Carrolls. Many of every one of us. Copies of you are generated thousands of times per second. The Many-Worlds theory of quantum behavior says that every time there is a quantum event, a world splits off with everything in it the same, except in that other world the quantum event didn't happen. Step-by-step in Carroll's uniquely lucid way, he tackles the major objections to this otherworldly revelation until his case is inescapably established. Rarely does a book so fully reorganize how we think about our place in the universe. We are on the threshold of a new understanding—of where we are in the cosmos, and what we are made of.
Publisher: Penguin
ISBN: 1524743038
Category : Science
Languages : en
Pages : 369
Book Description
INSTANT NEW YORK TIMES BESTSELLER As you read these words, copies of you are being created. Sean Carroll, theoretical physicist and one of this world’s most celebrated writers on science, rewrites the history of twentieth-century physics. Already hailed as a masterpiece, Something Deeply Hidden shows for the first time that facing up to the essential puzzle of quantum mechanics utterly transforms how we think about space and time. His reconciling of quantum mechanics with Einstein’s theory of relativity changes, well, everything. Most physicists haven’t even recognized the uncomfortable truth: Physics has been in crisis since 1927. Quantum mechanics has always had obvious gaps—which have come to be simply ignored. Science popularizers keep telling us how weird it is, how impossible it is to understand. Academics discourage students from working on the "dead end" of quantum foundations. Putting his professional reputation on the line with this audacious yet entirely reasonable book, Carroll says that the crisis can now come to an end. We just have to accept that there is more than one of us in the universe. There are many, many Sean Carrolls. Many of every one of us. Copies of you are generated thousands of times per second. The Many-Worlds theory of quantum behavior says that every time there is a quantum event, a world splits off with everything in it the same, except in that other world the quantum event didn't happen. Step-by-step in Carroll's uniquely lucid way, he tackles the major objections to this otherworldly revelation until his case is inescapably established. Rarely does a book so fully reorganize how we think about our place in the universe. We are on the threshold of a new understanding—of where we are in the cosmos, and what we are made of.
The Interpreted World
Author: Ernesto Spinelli
Publisher: SAGE
ISBN: 9781412903059
Category : Psychology
Languages : en
Pages : 256
Book Description
Praise for First Edition: `This book is highly recommended to a wide range of people as a clear and systematic introduction to phenomenological psychology... the book has set the stage for possible new colloquia between the phenomenological and other approaches in psychology' - Changes `As a trainee interested in matters existential, I have been put off in the past by the long-winded and confusing texts usually available in academic libraries. Thankfully, here is a text that remedies that situation... [it] provides a readable and insightful account' - Clinical Psychology Forum 'Spinellis classic introduction to phenomenology should be essential reading on all person-centred, existential and humanistic trainings, and any other counselling or psychotherapy course which aims to help students develop an in-depth understanding of human lived-experience. This book is sure to remain a key text for many years to come' - Mick Cooper, Senior Lecturer in Counselling, University of Strathclyde 'This is by far the most monumental, erudite, comprehensive, authoritative case that Existentialism and Phenomenology (a) have a rightful place in the academy; (b) are tough-minded bodies of thought; (c) have rigorous scientific foundations; (d) bequeath a distinctive school of psychotherapy and counselling; and (e) are just as good as the more established systems of psychology' - Alvin R. Mahrer, Ph.D. University of Ottawa, Canada, Author of The Complete Guide To Experiential Psychotherapy 'This books rich insight into the lacunae of modern psychological thinking illustrates the contribution that existential phenomenology can make to founding a coherently mature Psychology that is both fully human(e) and responsibly scientific in the best sense of that term' - Richard House, Ph.D., Magdalen Medical Practice, Norwich; Steiner Waldorf teacher. The Interpreted World, Second Edition, is a welcome introduction to phenomenological psychology, an area of psychology which has its roots in notoriously difficult philosophical literature. The Interpreted World Writing in a highly accessible, jargon-free style, Ernesto Spinelli traces the philosophical origins of phenomenological theory and presents phenomenological perspectives on central topics in psychology - perception, social cognition and the self. He compares the phenomenological approach with other major contemporary psychological approaches, pointing up areas of divergence and convergence with these systems. He also examines implications of phenomenology for the precepts and process of psychotherapy. For the Second Edition, a new chapter on phenomenological research has been added in which the author focuses on the contribution of phenomenology in relation to contemporary scientific enquiry. He describes the methodology used in phenomenological research and illustrates the approach through an actual research study. The Interpreted World, Second Edition demystifies an exciting branch of psychology, making its insights available to all students of psychology, psychotherapy and counselling.
Publisher: SAGE
ISBN: 9781412903059
Category : Psychology
Languages : en
Pages : 256
Book Description
Praise for First Edition: `This book is highly recommended to a wide range of people as a clear and systematic introduction to phenomenological psychology... the book has set the stage for possible new colloquia between the phenomenological and other approaches in psychology' - Changes `As a trainee interested in matters existential, I have been put off in the past by the long-winded and confusing texts usually available in academic libraries. Thankfully, here is a text that remedies that situation... [it] provides a readable and insightful account' - Clinical Psychology Forum 'Spinellis classic introduction to phenomenology should be essential reading on all person-centred, existential and humanistic trainings, and any other counselling or psychotherapy course which aims to help students develop an in-depth understanding of human lived-experience. This book is sure to remain a key text for many years to come' - Mick Cooper, Senior Lecturer in Counselling, University of Strathclyde 'This is by far the most monumental, erudite, comprehensive, authoritative case that Existentialism and Phenomenology (a) have a rightful place in the academy; (b) are tough-minded bodies of thought; (c) have rigorous scientific foundations; (d) bequeath a distinctive school of psychotherapy and counselling; and (e) are just as good as the more established systems of psychology' - Alvin R. Mahrer, Ph.D. University of Ottawa, Canada, Author of The Complete Guide To Experiential Psychotherapy 'This books rich insight into the lacunae of modern psychological thinking illustrates the contribution that existential phenomenology can make to founding a coherently mature Psychology that is both fully human(e) and responsibly scientific in the best sense of that term' - Richard House, Ph.D., Magdalen Medical Practice, Norwich; Steiner Waldorf teacher. The Interpreted World, Second Edition, is a welcome introduction to phenomenological psychology, an area of psychology which has its roots in notoriously difficult philosophical literature. The Interpreted World Writing in a highly accessible, jargon-free style, Ernesto Spinelli traces the philosophical origins of phenomenological theory and presents phenomenological perspectives on central topics in psychology - perception, social cognition and the self. He compares the phenomenological approach with other major contemporary psychological approaches, pointing up areas of divergence and convergence with these systems. He also examines implications of phenomenology for the precepts and process of psychotherapy. For the Second Edition, a new chapter on phenomenological research has been added in which the author focuses on the contribution of phenomenology in relation to contemporary scientific enquiry. He describes the methodology used in phenomenological research and illustrates the approach through an actual research study. The Interpreted World, Second Edition demystifies an exciting branch of psychology, making its insights available to all students of psychology, psychotherapy and counselling.
The Many-Worlds Interpretation of Quantum Mechanics
Author: Bryce Seligman Dewitt
Publisher: Princeton University Press
ISBN: 140086805X
Category : Science
Languages : en
Pages : 264
Book Description
A novel interpretation of quantum mechanics, first proposed in brief form by Hugh Everett in 1957, forms the nucleus around which this book has developed. In his interpretation, Dr. Everett denies the existence of a separate classical realm and asserts the propriety of considering a state vector for the whole universe. Because this state vector never collapses, reality as a whole is rigorously deterministic. This reality, which is described jointly by the dynamical variables and the state vector, is not the reality customarily perceived; rather, it is a reality composed of many worlds. By virtue of the temporal development of the dynamical variables, the state vector decomposes naturally into orthogonal vectors, reflecting a continual splitting of the universe into a multitude of mutually unobservable but equally real worlds, in each of which every good measurement has yielded a definite result, and in most of which the familiar statistical quantum laws hold. The volume contains Dr. Everett's short paper from 1957, "'Relative State' Formulation of Quantum Mechanics," and a far longer exposition of his interpretation, entitled "The Theory of the Universal Wave Function," never before published. In addition, other papers by Wheeler, DeWitt, Graham, and Cooper and Van Vechten provide further discussion of the same theme. Together, they constitute virtually the entire world output of scholarly commentary on the Everett interpretation. Originally published in 1973. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Publisher: Princeton University Press
ISBN: 140086805X
Category : Science
Languages : en
Pages : 264
Book Description
A novel interpretation of quantum mechanics, first proposed in brief form by Hugh Everett in 1957, forms the nucleus around which this book has developed. In his interpretation, Dr. Everett denies the existence of a separate classical realm and asserts the propriety of considering a state vector for the whole universe. Because this state vector never collapses, reality as a whole is rigorously deterministic. This reality, which is described jointly by the dynamical variables and the state vector, is not the reality customarily perceived; rather, it is a reality composed of many worlds. By virtue of the temporal development of the dynamical variables, the state vector decomposes naturally into orthogonal vectors, reflecting a continual splitting of the universe into a multitude of mutually unobservable but equally real worlds, in each of which every good measurement has yielded a definite result, and in most of which the familiar statistical quantum laws hold. The volume contains Dr. Everett's short paper from 1957, "'Relative State' Formulation of Quantum Mechanics," and a far longer exposition of his interpretation, entitled "The Theory of the Universal Wave Function," never before published. In addition, other papers by Wheeler, DeWitt, Graham, and Cooper and Van Vechten provide further discussion of the same theme. Together, they constitute virtually the entire world output of scholarly commentary on the Everett interpretation. Originally published in 1973. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.