Time's Arrow and Archimedes' Point: New Directions for the Physics of Time [NOOK Book]

Overview

Why is the future so different from the past? Why does the past affect the future and not the other way around? What does quantum mechanics really tell us about the world? In this important and accessible book, Huw Price throws fascinating new light on some of the great mysteries of modern physics, and connects them in a wholly original way.
Price begins with the mystery of the arrow of time. Why, for example, does disorder always increase, as required by the second law of ...
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Time's Arrow and Archimedes' Point: New Directions for the Physics of Time

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Overview

Why is the future so different from the past? Why does the past affect the future and not the other way around? What does quantum mechanics really tell us about the world? In this important and accessible book, Huw Price throws fascinating new light on some of the great mysteries of modern physics, and connects them in a wholly original way.
Price begins with the mystery of the arrow of time. Why, for example, does disorder always increase, as required by the second law of thermodynamics? Price shows that, for over a century, most physicists have thought about these problems the wrong way. Misled by the human perspective from within time, which distorts and exaggerates the differences between past and future, they have fallen victim to what Price calls the "double standard fallacy": proposed explanations of the difference between the past and the future turn out to rely on a difference which has been slipped in at the beginning, when the physicists themselves treat the past and future in different ways. To avoid this fallacy, Price argues, we need to overcome our natural tendency to think about the past and the future differently. We need to imagine a point outside time -- an Archimedean "view from nowhen" -- from which to observe time in an unbiased way.
Offering a lively criticism of many major modern physicists, including Richard Feynman and Stephen Hawking, Price shows that this fallacy remains common in physics today -- for example, when contemporary cosmologists theorize about the eventual fate of the universe. The "big bang" theory normally assumes that the beginning and end of the universe will be very different. But if we are to avoid the double standard fallacy, we need to consider time symmetrically, and take seriously the possibility that the arrow of time may reverse when the universe recollapses into a "big crunch."
Price then turns to the greatest mystery of modern physics, the meaning of quantum theory. He argues that in missing the Archimedean viewpoint, modern physics has missed a radical and attractive solution to many of the apparent paradoxes of quantum physics. Many consequences of quantum theory appear counterintuitive, such as Schrodinger's Cat, whose condition seems undetermined until observed, and Bell's Theorem, which suggests a spooky "nonlocality," where events happening simultaneously in different places seem to affect each other directly. Price shows that these paradoxes can be avoided by allowing that at the quantum level the future does, indeed, affect the past. This demystifies nonlocality, and supports Einstein's unpopular intuition that quantum theory describes an objective world, existing independently of human observers: the Cat is alive or dead, even when nobody looks. So interpreted, Price argues, quantum mechanics is simply the kind of theory we ought to have expected in microphysics -- from the symmetric standpoint.
Time's Arrow and Archimedes' Point presents an innovative and controversial view of time and contemporary physics. In this exciting book, Price urges physicists, philosophers, and anyone who has ever pondered the mysteries of time to look at the world from the fresh perspective of Archimedes' Point and gain a deeper understanding of ourselves, the universe around us, and our own place in time.
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Product Details

  • ISBN-13: 9780199839322
  • Publisher: Oxford University Press, USA
  • Publication date: 1/30/1996
  • Sold by: Barnes & Noble
  • Format: eBook
  • Sales rank: 1,396,444
  • File size: 3 MB

Meet the Author

About the Author:
Huw Price is Reader in Philosophy at the University of Sydney, Australia. He is the author of Facts and the Function of Truth (1988) and a wide range of articles in leading journals such as The Journal of Philosophy, Mind, and Nature.

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Table of Contents

1 The View from Nowhen 3
2 "More Apt to Be Lost than Got": The Lessons of the Second Law 22
3 New Light on the Arrow of Radiation 49
4 Arrows and Errors in Contemporary Cosmology 78
5 Innocence and Symmetry in Microphysics 114
6 In Search of the Third Arrow 132
7 Convention Objectified and the Past Unlocked 162
8 Einstein's Issue: The Puzzle of Contemporary Quantum Theory 195
9 The Case for Advanced Action 231
10 Overview 261
Notes 269
Bibliography 285
Index 293
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