Haunted places logic problem answers

How to Think about Weird Things

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How to Think about Weird Things Critical Thinking for a New Age

SEVENTH EDITION

Theodore Schick, Jr. Muhlenberg College

Lewis Vaughn

Foreword by Martin Gardner

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HOW TO THINK ABOUT WEIRD THINGS: CRITICAL THINKING FOR A NEW AGE, SEVENTH EDITION

Published by McGraw-Hill, a business unit of The McGraw-Hill Companies, Inc., 1221 Avenue of the Americas, New York, NY, 10020. Copyright © 2014 by The McGraw-Hill Companies, Inc. All rights reserved. Printed in the United States of America. Previous editions © 2007, 2004, and 2001. No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written consent of The McGraw-Hill Companies, Inc., including, but not limited to, in any network or other electronic storage or transmission, or broadcast for distance learning.

Some ancillaries, including electronic and print components, may not be available to customers outside the United States.

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To Erin, Kathy, Katie, Marci, Patrick, and T. J.

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Foreword

Every year, in English-speaking countries alone, more than a hundred books that promote the wildest forms of bogus science and the para- normal are published. The percentage of Americans today who take astrology seriously is larger than the percentage of people who did so in the early Middle Ages, when leading church theologians—Saint Augustine, for example—gave excellent reasons for considering astrol- ogy nonsense. We pride ourselves on our advanced scientific technol- ogy, yet public education in science has sunk so low that one-fourth of Americans and 55 percent of teenagers, not to mention a recent pres- ident of the nation and his first lady, believe in astrology!

Now and then a courageous publisher, more concerned with enlightening the public than with profits, will issue a book that hon- estly assesses pseudoscience and the paranormal. Works of this sort now in print can be counted on your fingers. It is always an occasion for rejoicing when such a book appears, and there are several ways in which How to Think about Weird Things is superior to most books designed to teach readers how to tell good science from bad.

First of all, this book covers an enormous range of bogus sciences and extraordinary claims that currently enjoy large followings in Amer- ica. Second, unlike most similar books, the authors heavily stress prin- ciples that help you critically evaluate outlandish claims—and tell you why these principles are so important. Third, the book’s discussions are readable, precise, and straightforward.

I am particularly pleased by the book’s clearheaded assessment of scientific realism at a time when it has become fashionable in New Age circles to think of the laws of science as not “out there,” but some- how a projection of our minds and cultures. Yes, quantum mechanics has its subjective tinge. There is a sense in which an electron’s prop- erties are not definite until it is measured, but this technical aspect of quantum theory has no relevance on the macroscopic level of every- day life. In no way does the mathematical formalism of quantum mechanics imply, as some physicists smitten by Eastern religions claim, that the moon is not there unless someone looks at it. As Einstein liked to ask, Will a mouse’s observation make the moon real?

The authors give clear, accurate explanations of puzzling physi- cal theories. Quantum theory indeed swarms with mind-boggling experiments that are only dimly understood. None of them justify thinking that E = mc2 is a cultural artifact, or that E might equal mc3

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in Afghanistan or on a distant planet. Extraterrestrials would of course express Einstein’s formula with different symbols, but the law itself is as mind-independent as Mars.

As the authors say simply: “There is a way that the world is.” It is the task of science to learn as much as it can about how this universe, not made by us, behaves. The awesome achievements of technology are irrefutable evidence that science keeps getting closer and closer to objective truth.

As the authors tell us, there are two distinct kinds of knowledge: logical and mathematical truth (statements that are certain within a given formal system), and scientific truth, never absolutely certain, but which can be accepted with a degree of probability that in many instances is practically indistinguishable from certainty. It takes a bizarre kind of mind to imagine that two plus two could be anything but four, or that, as the authors put it, cows can jump over the moon or rabbits lay multicolored eggs.

The authors are to be especially cheered for their coverage of unsubstantiated alternative treatments, some of them weird beyond imagining. Preposterous medical claims can cause untold harm to gullible persons who rely on them to the exclusion of treatment by mainstream physicians.

The authors are also to be commended for finding colorful and apt quotations from other writers. Bertrand Russell, for instance, gave three simple rules for curbing one’s tendency to accept what he called “intellectual rubbish”:

1. When the experts are agreed, the opposite opinion cannot be held to be certain.

2. When they are not agreed, no opinion can be regarded as certain by a nonexpert.

3. When they all hold that no sufficient grounds for a positive opinion exist, the ordinary person would do well to suspend judgment.

“These propositions seem mild,” Russell added, “yet, if accepted, they would absolutely revolutionize human life.”

I am under no illusions about how effective this book will be in persuading readers to adopt Russell’s three maxims. I can say that to the extent it does, it will have performed a service that our technologically advanced but scientifically retarded nation desperately needs.

— Martin Gardner

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ix

Preface

Few claims seem to arouse more interest, evoke more emotion, and create more confusion than those dealing with the paranormal, the supernatural, or the mysterious—what in this book we call “weird things.” Although many such claims are unbelievable, many people believe them, and their belief often has a profound effect on their lives. Billions of dollars are spent each year on people and products claiming supernatural powers. Channelers claim to communicate with aliens from outer space, psychics and astrologers claim to fore- tell the future, and healers claim to cure everything from AIDS to warts. Who are we to believe? How do we decide which claims are credible? What distinguishes rational from irrational claims? This book is designed to help you answer such questions.

Why do you believe in any given claim? Do you believe for any of the following reasons?

• You had an extraordinary personal experience. • You embrace the idea that anything is possible—including

weird things. • You have an especially strong feeling that the claim is true or

false. • You have made a leap of faith that compels you to accept the

claim. • You believe in inner, mystical ways of knowing that support the

claim. • You know that no one has ever disproved the claim. • You have empirical evidence that the claim is true. • You believe that any claim is true for you if you believe it to be

true.

This list of reasons for belief could go on and on. But which rea- sons are good reasons? Clearly, some are better than others; some can help us decide which claims are most likely to be true, and some can’t. If we care whether any claim is actually true, whether our beliefs are well founded (and not merely comfortable or convenient), we must be able to distinguish good reasons from bad. We must understand how and when our beliefs are justified, how and when we can say that we know that something is true or believable.

The central premise of this book is that such an understanding is possible, useful, and empowering. Being able to distinguish good

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reasons from bad will not only improve your decision-making ability; it will also give you a powerful weapon against all forms of huckster- ism. This volume shows you step-by-step how to sort out reasons, how to evaluate evidence, and how to tell when a claim (no matter how strange) is likely to be true. It’s a course in critical thinking as applied to claims and phenomena that many people think are immune to critical thinking.

The emphasis, then, is neither on debunking nor on advocating specific claims, but on explaining principles of critical thinking that enable you to evaluate any claim for yourself. To illustrate how to apply these principles, we supply analyses of many extraordinary claims, including conclusions regarding their likely truth or falsity. But the focus is on carefully wielding the principles, not on whether a given claim goes unscathed or is cut down.

Often in the realm of the weird, such principles themselves are precisely what’s at issue. Arguments about weird things are frequently about how people know and if people know—the main concerns of the branch of philosophy called epistemology. Thinking about weird things, then, brings us face-to-face with some of the most funda- mental issues in human thought. So we concentrate on clearly explaining these issues, showing why the principles themselves in this book are valid, and demonstrating why many alternatives to them are unfounded. We explore alleged sources of knowledge like faith, intuition, mysticism, perception, introspection, memory, reason, and science. We ask: Do any of these factors give us knowledge? Why or why not?

Since we show how these principles can be used in specific cases, this book is essentially a work of applied epistemology. Whether you’re a believer or nonbeliever in weird things, and whether or not you’re aware of it, you have an epistemology, a theory of knowledge. If you ever hope to discern whether a weird claim (or any other kind of claim) is true, your epistemology had better be a good one.

The principles discussed in this book can help you evaluate any claim—not just those dealing with weird phenomena. We believe that if you can successfully use these principles to assess the most bizarre, most unexpected claims, you’re well prepared to tackle anything run- of-the-mill.

NEW EDITION, NEW MATERIAL

For this seventh edition, we have revised several sections, updated several others, and added new discussions of topics that now draw a great deal of popular interest. These changes include:

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• A new case study on climate change • New boxes on ancient aliens, ghost hunters, precognition, the

Phoenixville and Stephenville lights, end of the world prophe- cies, and immunization and autism

• Expanded discussion of the harm of irrational beliefs, the possi- bility of time travel and space travel, the relationship between magic and miracles, and the plausibility of astrology

IMPORTANT CONTINUING FEATURES

This volume also includes the following:

• Explanations of over thirty principles of knowledge, reasoning, and evidence that you can use to enhance your problem-solving skills and sharpen your judgment.

• Discussions of over sixty paranormal, supernatural, or mysterious phenomena, including astrology, ghosts, fairies, ESP, psychokinesis, UFO abductions, channeling, dowsing, near-death experiences, pro- phetic dreams, demon possession, time travel, parapsychology, and creationism.

• Details of a step-by-step procedure for evaluating any extraordi- nary claim. We call it the SEARCH formula and give several examples showing how it can be applied to some popular weird claims.

• Numerous boxes offering details on various offbeat beliefs, assess- ments by both true believers and skeptics of extraordinary claims, and reports of relevant scientific research. We think this material can stimulate discussion or serve as examples that can be assessed using the principles of critical thinking.

• A comprehensive treatment of different views about the nature of truth, including several forms of relativism and subjectivism.

• A detailed discussion of the characteristics, methodology, and limitations of science, illustrated with analyses of the claims of para- psychology and creationism. This discussion includes a complete treatment of science’s criteria of adequacy and how those criteria should be used to evaluate extraordinary claims.

ACKNOWLEDGMENTS

The authors shared equally in the work of writing this book and thus share equally in responsibility for any of its shortcomings. But we are not alone in the project. We’re grateful to Muhlenberg College for

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the research funds and library resources made available to us, to the Muhlenberg Scholars who participated in the course based on this book, and to the many people who helped us by reviewing the man- uscript for accuracy, giving expert advice, and offering insightful commentary.

For the seventh edition, these included the following people:

Anne Berre, Schreiner University James Blackmon, San Francisco State University William Holly, Modesto Junior College Michael Jackson, St. Bonaventure University Don Merrell, Arkansas State University Tadd Ruetenik, St. Ambrose University Dennis Shaw, Lower Columbia College Weimin Sun, California State University at Northridge Mark Vopat, Youngstown State University Helen Woodman, Ferris State University

And we continue to thank the reviewers of the sixth edition, who include:

H. E. Baber, University of San Diego Tim Black, California State University, Northridge Douglas E. Hill, California State University, Fullerton Rebekah Ross-Fountain, Texas State University–San Marcos Mark C. Vopat, Youngstown State University

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FOREWORD vii

PREFACE ix

Chapter 1 Introduction: Close Encounters with the Strange 1

THE IMPORTANCE OF WHY 2

BEYOND WEIRD TO THE ABSURD 4

A WEIRDNESS SAMPLER 6

Notes 13

Chapter 2 The Possibility of the Impossible 14

PARADIGMS AND THE PARANORMAL 15

LOGICAL POSSIBILITY VERSUS PHYSICAL IMPOSSIBILITY 16

THE POSSIBILITY OF ESP 22

THEORIES AND THINGS 24

ON KNOWING THE FUTURE 25

Summary 28

Study Questions 30

Evaluate These Claims 30

Discussion Questions 30

Field Problem 30

Critical Reading and Writing 31

Notes 32

Chapter 3 Arguments Good, Bad, and Weird 33

CLAIMS AND ARGUMENTS 34

DEDUCTIVE ARGUMENTS 39

INDUCTIVE ARGUMENTS 42

Enumerative Induction 42

Analogical Induction 46

Hypothetical Induction (Abduction, or Inference to the Best Explanation) 47

Contents

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INFORMAL FALLACIES 49

Unacceptable Premises 49

Begging the Question 49 False Dilemma 49

Irrelevant Premises 50

Equivocation 50 Composition 50 Division 51 Appeal to the Person 51 Genetic Fallacy 51 Appeal to Authority 51 Appeal to the Masses 52 Appeal to Tradition 52 Appeal to Ignorance 52 Appeal to Fear 53 Straw Man 53

Insufficient Premises 53

Hasty Generalization 53 Faulty Analogy 54 False Cause 54 Slippery Slope 54

STATISTICAL FALLACIES 55

Misleading Averages 55

Missing Values 55

Hazy Comparisons 56

Summary 57

Study Questions 57

Evaluate These Claims 58

Discussion Questions 59

Field Problem 60

Critical Reading and Writing 60

Notes 61

Chapter 4 Knowledge, Belief, and Evidence 62

BABYLONIAN KNOWLEDGE-ACQUISITION TECHNIQUES 63

PROPOSITIONAL KNOWLEDGE 64

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REASONS AND EVIDENCE 65

EXPERT OPINION 71

COHERENCE AND JUSTIFICATION 74

SOURCES OF KNOWLEDGE 75

THE APPEAL TO FAITH 77

THE APPEAL TO INTUITION 79

THE APPEAL TO MYSTICAL EXPERIENCE 81

ASTROLOGY REVISITED 84

Summary 90

Study Questions 91

Evaluate These Claims 91

Discussion Questions 91

Field Problem 92

Critical Reading and Writing 92

Notes 93

Chapter 5 Looking for Truth in Personal Experience 96

SEEMING AND BEING 97

PERCEIVING: WHY YOU CAN’T ALWAYS BELIEVE WHAT YOU SEE 99

Perceptual Constancies 99

The Role of Expectation 100

Looking for Clarity in Vagueness 101

The Blondlot Case 104

“Constructing” UFOs 107

REMEMBERING: WHY YOU CAN’T ALWAYS TRUST WHAT YOU RECALL 111

CONCEIVING: WHY YOU SOMETIMES SEE WHAT YOU BELIEVE 118

Denying the Evidence 118

Subjective Validation 121

Confirmation Bias 125

The Availability Error 127

The Representativeness Heuristic 132

Anthropomorphic Bias 135

Against All Odds 138

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xvi C O N T E N T S

ANECDOTAL EVIDENCE: WHY TESTIMONIALS CAN’T BE TRUSTED 141

The Variable Nature of Illness 143

The Placebo Effect 145

Overlooked Causes 146

SCIENTIFIC EVIDENCE: WHY CONTROLLED STUDIES CAN BE TRUSTED 147

Summary 149

Study Questions 150

Evaluate These Claims 151

Discussion Questions 151

Field Problem 151

Critical Reading and Writing 152

Notes 153

Chapter 6 Science and Its Pretenders 158

SCIENCE AND DOGMA 159

SCIENCE AND SCIENTISM 160

SCIENTIFIC METHODOLOGY 161

CONFIRMING AND REFUTING HYPOTHESES 166

CRITERIA OF ADEQUACY 171

Testability 172

Fruitfulness 174

Scope 177

Simplicity 178

Conservatism 180

CREATIONISM, EVOLUTION, AND CRITERIA OF ADEQUACY 181

Scientific Creationism 183

Intelligent Design 191

PARAPSYCHOLOGY 197

Summary 212

Study Questions 213

Evaluate These Claims 213

Discussion Questions 214

Field Problem 214

Critical Reading and Writing 214

Notes 215

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Chapter 7 Case Studies in the Extraordinary 220

THE SEARCH FORMULA 222

Step 1: State the Claim 223

Step 2: Examine the Evidence for the Claim 223

Step 3: Consider Alternative Hypotheses 224

Step 4: Rate, According to the Criteria of Adequacy, Each Hypothesis 225

HOMEOPATHY 227

INTERCESSORY PRAYER 231

UFO ABDUCTIONS 234

COMMUNICATING WITH THE DEAD 248

NEAR-DEATH EXPERIENCES 253

GHOSTS 268

CONSPIRACY THEORIES 276

CLIMATE CHANGE 283

Summary 288

Study Questions 288

Evaluate These Claims 289

Field Problem 290

Critical Reading and Writing 290

Notes 290

Chapter 8 Relativism,Truth, and Reality 295

WE EACH CREATE OUR OWN REALITY 297

REALITY IS SOCIALLY CONSTRUCTED 301

REALITY IS CONSTITUTED BY CONCEPTUAL SCHEMES 306

THE RELATIVIST’S PETARD 311

FACING REALITY 313

Summary 315

Study Questions 316

Evaluate These Claims 316

Discussion Questions 316

Field Problem 316

Critical Reading and Writing 317

Notes 318

CREDITS C-1

INDEX I-1

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1

ONE Introduction: Close Encounters with the Strange

THIS BOOK IS FOR you who have stared into the nightsky or the dark recesses of a room, hairs raised on the back of your neck, eyes wide, faced with an experience you

couldn’t explain but about which you have never stopped

wondering, “Was it real?” It’s for you who have read

and heard about UFOs, psychic phenomena, time travel,

out-of-body experiences, ghosts, monsters, astrology, rein-

carnation, mysticism, acupuncture, iridology, incredible

experiments in quantum physics, and a thousand other

extraordinary things, and asked, “Is it true?” Most of all, it’s

for you who believe, as Einstein did, that the most beautiful

experience we can have is the mysterious—and who yet, like

him, have the courage to ask tough questions until the mys-

tery yields answers.

Wonder is the feeling of a philosopher, and philosophy begins in wonder.

—PLATO

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But this is not primarily a book of such answers, though several will be offered. This book is about how to find the answers for yourself—how to test the truth or reality of some of the most influential, mysterious, provocative, bewildering puzzles we can ever experience. It’s about how to think clearly and critically about what we authors have dubbed weird things—all the unusual, awesome, wonderful, bizarre, and antic happenings, real or alleged, that bubble up out of science, pseu- doscience, the occult, the paranormal, the mystic, and the miraculous.

THE IMPORTANCE OF WHY

Pick up almost any book or magazine on such subjects. It will tell you that some extraordinary phenomenon is real or illusory, that some strange claim is true or false, probable or improbable. Plenty of peo- ple around you will gladly offer you their beliefs (often unshakable) about the most amazing things. In this blizzard of assertions, you hear a lot of whats, but seldom any good whys. That is, you hear the beliefs, but seldom any solid reasons behind them—nothing sub- stantial enough to justify your sharing the beliefs; nothing reliable enough to indicate that these assertions are likely to be true. You may hear naiveté, passionate advocacy, fierce denunciation, one-sided sifting of evidence, defense of the party line, leaps of faith, jumps to false conclusions, plunges into wishful thinking, and courageous stands on the shaky ground of subjective certainty. But the good rea- sons are missing. Even if you do hear good reasons, you may end up forming a firm opinion on one extraordinary claim, but fail to learn any principle that would help you with a similar case. Or you hear good reasons, but no one bothers to explain why they’re so good, why they’re most likely to lead to the truth. Or no one may dare to answer the ultimate why—why good reasons are necessary to begin with.

Without good whys, humans have no hope of understanding all that we fondly call weird—or anything else, for that matter. Without good whys, our beliefs are simply arbitrary, with no more claim to knowledge than the random choice of a playing card. Without good whys to guide us, our beliefs lose their value in a world where beliefs are already a dime a dozen.

We especially need good whys when faced with weirdness. For statements about weird things are almost always cloaked in swirling mists of confusion, misconception, misperception, and our own yearn- ing to disbelieve or believe. Our task of judging the reality of these weird things isn’t made any easier by one fact that humbles and inspires every scientist: Sometimes the weirdest phenomena are absolutely

2 O N E : I N T RO D U C T I O N : C L O S E E N C O U N T E R S W I T H T H E S T R A N G E

Skeptical habits of thought are essential for nothing less than our survival— because baloney, bamboozles, bunk, careless thinking, flimflam and wishes disguised as facts are not restricted to parlor magic and ambiguous advice on matters of the heart.

—CARL SAGAN

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real; sometimes the strangest claims turn out to be true. The best sci- entists and thinkers can never forget that sometimes wondrous dis- coveries are made out there on the fringe of experience, where anomalies prowl.

Space aliens are abducting your neighbors. Psychic detectives solve crimes. You were a medieval stable boy in a former life. Nos- tradamus predicted JFK’s assassination. Herbs can cure AIDS. Levita- tion is possible. Reading tarot cards reveals character. Science proves the wisdom of Eastern mysticism. The moon landing was a hoax. Magnet therapy works. Near-death experiences prove there’s life after death. Crystals heal. Bigfoot stalks. Elvis lives.

Do you believe any of these claims? Do you believe that some or all of them deserve a good horselaugh, that they’re the kind of hooey that only a moron could take seriously? The big question then is why? Why do you believe or disbelieve? Belief alone—without good whys—can’t help us get one inch closer to the truth. A hasty rejec- tion or acceptance of a claim can’t help us tell the difference between what’s actually likely to be true (or false) and what we merely want to be true (or false). Beliefs that do not stand on our best reasons and evidence simply dangle in thin air, signifying nothing except our transient feelings or personal preferences.

What we offer here is a compendium of good whys. As clearly as we can, we explain and illustrate principles of rational inquiry for assessing all manner of weirdness. We give you the essential guides for weighing evidence and drawing well-founded conclusions. Most of these principles are simply commonplace, wielded by philosophers, scientists, and anyone else interested in discovering the facts. Many are fundamental to scientific explorations of all kinds. We show why these principles are so powerful, how anyone can put them to use, and why they’re good whys to begin with—why they’re more reliable guides for discovering what’s true and real than any alternatives.

We think this latter kind of explanation is sorely needed. You may hear that there’s no reliable scientific evidence to prove the re- ality of psychokinesis (moving physical objects with mind power alone). But you may never hear a careful explanation of why scien- tific evidence is necessary in the first place. Most scientists would say that the common experience of thinking of a friend and then sud- denly getting a phone call from that person doesn’t prove telepathy (communication between minds without use of the five senses). But why not? Only a few scientists and a handful of others bother to explain why. Say 100 people have independently tried eating a certain herb and now swear that it has cured them of cancer. Scientists would say that these 100 stories constitute anecdotal evidence that doesn’t

T H E I M P O RTA N C E O F W H Y 3

Call him wise whose actions, words, and steps are all a clear “because” to a clear “why.”

—JOHANN KASPAR LAVATER

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prove the effectiveness of the herb at all. But why not? There is indeed a good answer, but it’s tough to come by.

The answer is to be found in the principles that distinguish good reasons from bad ones. You needn’t take these principles (or any other statements) on faith. Through your own careful use of reason, you can verify their validity for yourself.

Nor should you assume that these guides are infallible and un- changeable. They’re simply the best we have until someone presents sound, rational reasons for discarding them.

These guides shouldn’t be a surprise to anyone. Yet, to many, the principles will seem like a bolt from the blue, a detailed map to a country they thought was uncharted. Even those of us who are unsur- prised by these principles must admit that we probably violate at least one of them daily—and so run off into a ditch of wrong conclusions.

BEYOND WEIRD TO THE ABSURD

To these pages, we cordially invite all those who sincerely believe that this book is a gigantic waste of time—who think that it’s impos- sible or pointless to use rational principles to assess the objective truth of weird claims. To this increasingly prevalent attitude, in all its forms, we offer a direct challenge. We do the impossible, or at least what some regard as impossible. We show that there are good rea- sons for believing that the following claims are, in fact, false:

• There’s no such thing as objective truth. We make our own truth.

• There’s no such thing as objective reality. We make our own reality.

• There are spiritual, mystical, or inner ways of knowing that are superior to our ordinary ways of knowing.

• If an experience seems real, it is real. • If an idea feels right to you, it is right. • We are incapable of acquiring knowledge of the true nature

of reality. • Science itself is irrational or mystical. It’s just another faith or

belief system or myth, with no more justification than any other.

• It doesn’t matter whether beliefs are true or not, as long as they’re meaningful to you.

We discuss these ideas because they’re unavoidable. If you want to evaluate weird things, sooner or later you’ll bump into notions that

4 O N E : I N T RO D U C T I O N : C L O S E E N C O U N T E R S W I T H T H E S T R A N G E

A man is a small thing, and the night is very large and full of wonders.

—LORD DUNSANY

I really think we are all creating our own reality. I think I’m cre- ating you right here. Therefore I created the medium, there- fore I created the entity, because I’m creating everything.

—SHIRLEY MACLAINE

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challenge your most fundamental assumptions. Weirdness by defini- tion is out of the norm, so it often calls into question our normal ways of knowing. It invites many to believe that in the arena of extraordi- nary things, extraordinary ways of knowing must prevail. It leads many to conclude that reason just doesn’t apply, that rationality has shown up at the wrong party.

You can learn a lot by seriously examining such challenges to basic assumptions about what we know (or think we know) and how we know it. In fact, in this volume you learn three important lessons about the above ideas:

1. If some of these ideas are true, knowing anything about any- thing (including weird stuff) is impossible.

2. If you honestly believe any of these ideas, you cut your chances of ever discovering what’s real or true.

3. Rejecting these notions is liberating and empowering.

The first lesson, for example, comes through clearly when we exam- ine the idea that there’s no such thing as objective truth. This notion means that reality is literally whatever each of us believes it to be. Reality doesn’t exist apart from a person’s beliefs about it. So truth isn’t objective, it’s subjective. The idea is embodied in the popular line “It may not be true for you, but it’s true for me.” The problem is, if there’s no objective truth, then no statement is objectively true, including the statement “There’s no such thing as objective truth.” The statement re- futes itself. If true, it means that the statement and all statements— ours, yours, or anybody else’s—aren’t worthy of belief or commitment. Every viewpoint becomes arbitrary, with nothing to rec- ommend it except the fact that someone likes it. There could be no such thing as knowledge, for if nothing is true, there can be nothing to know. The distinction between asserting and denying something would be meaningless. There could be no difference between sense and nonsense, reasonable belief and illusion. For several reasons, which we’ll discuss later, people would be faced with some intolerable absurdities. For one thing, it would be impossible to agree or disagree with someone. In fact, it would be impossible to communicate, to learn a language, to compare each other’s ideas, even to think.

The point of the third lesson is that if such outrageous notions shackle us, rejecting them sets us free. To reject them is to say that we can know things about the world—and that our ability to reason and weigh evidence is what helps us gain that knowledge. In part, the purpose of much that follows is to demonstrate just how po- tent this ability is. Human reason empowers us, like nothing else,

B E YO N D W E I R D TO T H E A B S U R D 5

Light—more light. —JOHANN

WOLFGANG VON GOETHE

The essence of the independent mind lies not in what it thinks but in how it thinks.

—CHRISTOPHER HITCHINS

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to distinguish between fact and fiction, understand significant issues, penetrate deep mysteries, and answer large questions.

A WEIRDNESS SAMPLER

How many people actually care about weird things? Plenty. Book sales, coverage in magazines and on television, movies, and opinion polls suggest that there’s widespread interest in things psychic, para- normal, occult, ghostly, and otherworldly. A Gallup poll published in 2005, for example, shows that:

• 55 percent of Americans believe in psychic or spiritual healing or the power of the human mind to heal the body.

• 41 percent believe in ESP (extrasensory perception). • 42 percent believe that people on Earth are sometimes pos-

sessed by the Devil. • 32 percent believe that ghosts or the spirits of dead people can

come back in certain places and situations. • 31 percent believe in telepathy, or communication between

minds without using the traditional five senses. • 24 percent believe that extraterrestrial beings have visited Earth

at some time in the past. • 26 percent believe in clairvoyance, or the power of the mind to

know the past and predict the future. • 21 percent believe that people can hear from or communicate

mentally with someone who has died. • 25 percent believe in astrology, or that the position of the stars

and planets can affect people’s lives. • 21 percent believe in witches. • 20 percent believe in reincarnation, that is, the rebirth of the

soul in a new body after death.

There are many, many more extraordinary things that thousands of people experience, believe in, and change their lives because of. Sev- eral will be discussed in this book. Here’s a sampling:

• Hundreds of people who were near death but did not die have told of blissful experiences in the beyond. Their reports vary, but cer- tain details keep recurring: While they were at death’s door, a feeling of peace overcame them. They watched as they floated above their own bodies. They traveled through a long, dark tunnel. They entered a bright, golden light and glimpsed another world of unspeakable beauty. They saw long-dead relatives and a being of light that com- forted them. Then they returned to their own bodies, awoke, and

6 O N E : I N T RO D U C T I O N : C L O S E E N C O U N T E R S W I T H T H E S T R A N G E

People everywhere enjoy believing things that they know are not true. It spares them the ordeal of thinking for them- selves and taking responsibility for what they know. —BROOKS ATKINSON

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were transformed by their incredible experience. In each case, the experience seemed nothing like a dream or a fantasy; it seemed vividly real. Such episodes are known as near-death experiences (NDEs). Many who have had such experiences say that their NDEs give undeniable proof of life after death.

• Some people report the often chilling experience known as a precognitive dream, a dream that seems to foretell the future. Here’s an example: “I dreamed I was walking along a steep ridge with my father. He was stepping too close to the edge, making the dirt cas- cade to the rocks far below. I turned to grab his arm, but the ridge fell away under his feet, leaving him to dangle from my hands. I pulled as hard as I could, but he grew larger and heavier. He fell, in slow motion, crying out to me but making no sound. Then I woke up screaming. Three weeks later my father fell to his death from a second-story window while he was painting the windowsill. I was in the room with him at the time but wasn’t able to reach him fast enough to prevent his fall. I rarely remember any dreams, and I had never before dreamed about someone falling.” Such dreams can have a profound emotional impact on the dreamer and may spark a firm belief in the paranormal.

A W E I R D N E S S S A M P L E R 7

Pseudoteachers

Two social scientists—sociologist Ray Eve and anthropologist Dana Dunn of the University of Texas at Arlington—tried to find out where pseudoscientific beliefs might come from. They theorized that teachers might be passing such ideas on in school.

To test their theory, they surveyed a national sample of 190 high-school biology and life- science teachers. Their findings: 43 percent thought that the story of the Flood and Noah’s ark was definitely or probably true; 20 percent believed in communication with the dead; 19 percent felt that dinosaurs and humans lived at the same time; 20 percent believed in black magic; and 16 percent believed in Atlantis. What’s more, 30 percent

wanted to teach creation science; 26 per- cent felt that some races were more intelli- gent than others; and 22 percent believed in ghosts.