Chaos: A Very Short Introduction Very Short Introductions are for anyone wanting a stimulating and accessible way in to a new subject. They are written by experts, and have been published in more than 25 languages worldwide. The series began in 1995, and now represents a wide variety of topics in history, philosophy, religion, science, and the humanities. Over the next few years it will grow to a library of around 200 volumes – a Very Short Introduction to everything from ancient Egypt and Indian philosophy to conceptual art and cosmology. Very Short Introductions available now: ANARCHISM Colin Ward CHOICE THEORY ANCIENT EGYPT Ian Shaw Michael Allingham ANCIENT PHILOSOPHY CHRISTIAN ART Beth Williamson Julia Annas CHRISTIANITY Linda Woodhead ANCIENT WARFARE CLASSICS Mary Beard and Harry Sidebottom John Henderson ANGLICANISM Mark Chapman CLAUSEWITZ Michael Howard THE ANGLO-SAXON AGE THE COLD WAR Robert McMahon John Blair CONSCIOUSNESS Susan Blackmore ANIMAL RIGHTS David DeGrazia CONTEMPORARY ART ARCHAEOLOGY Paul Bahn Julian Stallabrass ARCHITECTURE Continental Philosophy Andrew Ballantyne Simon Critchley ARISTOTLE Jonathan Barnes COSMOLOGY Peter Coles ART HISTORY Dana Arnold THE CRUSADES ART THEORY Cynthia Freeland Christopher Tyerman THE HISTORY OF CRYPTOGRAPHY ASTRONOMY Michael Hoskin Fred Piper and Sean Murphy Atheism Julian Baggini DADA AND SURREALISM Augustine Henry Chadwick David Hopkins BARTHES Jonathan Culler Darwin Jonathan Howard THE BIBLE John Riches THE DEAD SEA SCROLLS THE BRAIN Michael O’Shea Timothy Lim BRITISH POLITICS Democracy Bernard Crick Anthony Wright DESCARTES Tom Sorell Buddha Michael Carrithers DESIGN John Heskett BUDDHISM Damien Keown DINOSAURS David Norman BUDDHIST ETHICS DREAMING J. Allan Hobson Damien Keown DRUGS Leslie Iversen CAPITALISM James Fulcher THE EARTH Martin Redfern THE CELTS Barry Cunliffe ECONOMICS Partha Dasgupta CHAOS Leonard Smith EGYPTIAN MYTH Geraldine Pinch EIGHTEENTH-CENTURY Intelligence Ian J. Deary BRITAIN Paul Langford INTERNATIONAL THE ELEMENTS Philip Ball MIGRATION Khalid Koser EMOTION Dylan Evans ISLAM Malise Ruthven EMPIRE Stephen Howe JOURNALISM Ian Hargreaves ENGELS Terrell Carver JUDAISM Norman Solomon Ethics Simon Blackburn Jung Anthony Stevens The European Union KAFKA Ritchie Robertson John Pinder KANT Roger Scruton EVOLUTION KIERKEGAARD Patrick Gardiner Brian and Deborah Charlesworth THE KORAN Michael Cook EXISTENTIALISM Thomas Flynn LINGUISTICS Peter Matthews FASCISM Kevin Passmore LITERARY THEORY FEMINISM Margaret Walters Jonathan Culler THE FIRST WORLD WAR LOCKE John Dunn Michael Howard LOGIC Graham Priest FOSSILS Keith Thomson MACHIAVELLI Quentin Skinner FOUCAULT Gary Gutting THE MARQUIS DE SADE THE FRENCH REVOLUTION John Phillips William Doyle MARX Peter Singer FREE WILL Thomas Pink MATHEMATICS Timothy Gowers Freud Anthony Storr MEDICAL ETHICS Tony Hope FUNDAMENTALISM MEDIEVAL BRITAIN Malise Ruthven John Gillingham and Galileo Stillman Drake Ralph A. Griffiths Gandhi Bhikhu Parekh MODERN ART David Cottington GLOBAL CATASTROPHES MODERN IRELAND Bill McGuire Senia Pasˇeta GLOBALIZATION Manfred Steger MOLECULES Philip Ball GLOBAL WARMING Mark Maslin MUSIC Nicholas Cook HABERMAS Myth Robert A. Segal James Gordon Finlayson NATIONALISM Steven Grosby HEGEL Peter Singer NEWTON Robert Iliffe HEIDEGGER Michael Inwood NIETZSCHE Michael Tanner HIEROGLYPHS Penelope Wilson NINETEENTH-CENTURY HINDUISM Kim Knott BRITAIN Christopher Harvie and HISTORY John H. Arnold H. C. G. Matthew HOBBES Richard Tuck NORTHERN IRELAND HUMAN EVOLUTION Marc Mulholland Bernard Wood PARTICLE PHYSICS Frank Close HUME A. J. Ayer paul E. P. Sanders IDEOLOGY Michael Freeden Philosophy Edward Craig Indian Philosophy PHILOSOPHY OF LAW Sue Hamilton Raymond Wacks PHILOSOPHY OF SCIENCE SCHIZOPHRENIA Samir Okasha Chris Frith and Eve Johnstone PHOTOGRAPHY Steve Edwards SCHOPENHAUER PLATO Julia Annas Christopher Janaway POLITICS Kenneth Minogue SHAKESPEARE POLITICAL PHILOSOPHY Germaine Greer David Miller SIKHISM Eleanor Nesbitt POSTCOLONIALISM SOCIAL AND CULTURAL Robert Young ANTHROPOLOGY POSTMODERNISM John Monaghan and Peter Just Christopher Butler SOCIALISM Michael Newman POSTSTRUCTURALISM SOCIOLOGY Steve Bruce Catherine Belsey Socrates C. C. W. Taylor PREHISTORY Chris Gosden THE SPANISH CIVIL WAR PRESOCRATIC PHILOSOPHY Helen Graham Catherine Osborne SPINOZA Roger Scruton Psychology Gillian Butler and STUART BRITAIN Freda McManus John Morrill PSYCHIATRY Tom Burns TERRORISM QUANTUM THEORY Charles Townshend John Polkinghorne THEOLOGY David F. Ford THE RENAISSANCE Jerry Brotton THE HISTORY OF TIME RENAISSANCE ART Leofranc Holford-Strevens Geraldine A. Johnson TRAGEDY Adrian Poole ROMAN BRITAIN Peter Salway THE TUDORS John Guy THE ROMAN EMPIRE TWENTIETH-CENTURY Christopher Kelly BRITAIN Kenneth O. Morgan ROUSSEAU Robert Wokler THE VIKINGS Julian D. Richards RUSSELL A. C. Grayling Wittgenstein A. C. Grayling RUSSIAN LITERATURE WORLD MUSIC Philip Bohlman Catriona Kelly THE WORLD TRADE THE RUSSIAN REVOLUTION ORGANIZATION S. A. Smith Amrita Narlikar Available soon: AFRICAN HISTORY HIV/AIDS Alan Whiteside John Parker and HUMAN RIGHTS Richard Rathbone Andrew Clapham CHILD DEVELOPMENT INTERNATIONAL RELATIONS Richard Griffin Paul Wilkinson CITIZENSHIP Richard Bellamy RACISM Ali Rattansi For more information visit our web site www.oup.co.uk/general/vsi/ Leonard A. Smith CHAOS A Very Short Introduction 1 3 Great Clarendon Street, Oxford ox2 6dp Oxford University Press is a department of the University of Oxford. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide in OxfordNew York AucklandCape TownDar es Salaam Hong Kong Karachi Kuala LumpurMadridMelbourneMexico CityNairobi New DelhiShanghaiTaipeiToronto With offices in ArgentinaAustriaBrazilChileCzech Republic FranceGreece GuatemalaHungaryItaly Japan Poland PortugalSingapore South KoreaSwitzerlandThailand TurkeyUkraineVietnam Oxford is a registered trade mark of Oxford University Press in the UK and in certain other countries Published in the United States by Oxford University Press Inc., New York © Leonard A. Smith 2007 The moral rights of the author have been asserted Database right Oxford University Press (maker) First published as a Very Short Introduction 2007 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission in writing of Oxford University Press, or as expressly permitted by law, or under terms agreed with the appropriate reprographics rights organizations. Enquiries concerning reproduction outside the scope of the above should be sent to the Rights Department, Oxford University Press, at the address above You must not circulate this book in any other binding or cover and you must impose this same condition on any acquirer British Library Cataloguing in Publication Data Data available Library of Congress Cataloging in Publication Data Data available Typeset by RefineCatch Ltd, Bungay, Suffolk Printed in Great Britain by Ashford Colour Press Ltd, Gosport, Hampshire 978–0–19–285378–3 13579108642 To the memory of Dave Paul Debeer, A real physicist, a true friend. This page intentionally left blank Contents Acknowledgements xi Preface xii List of illustrations xv 1 The emergence of chaos 1 2 Exponential growth, nonlinearity, common sense 22 3 Chaos in context: determinism, randomness, and noise 33 4 Chaos in mathematical models 58 5 Fractals, strange attractors, and dimension(s) 76 6 Quantifying the dynamics of uncertainty 87 7 Real numbers, real observations, and computers 104 8 Sorry, wrong number: statistics and chaos 112 9 Predictability: does chaos constrain our forecasts? 123 10 Applied chaos: can we see through our models? 132 11 Philosophy in chaos 154 Glossary 163 Further reading 169 Index 173