What We Believe but Cannot Prove: Today's Leading Thinkers on Science in the Age of Certainty

Overview

More than one hundred of the world's leading thinkers write about things they believe in, despite the absence of concrete proof

Scientific theory, more often than not, is born of bold assumption, disparate bits of unconnected evidence, and educated leaps of faith. Some of the most potent beliefs among brilliant minds are based on supposition alone — yet that is enough to push those minds toward making the theory viable.

Eminent cultural ...

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What We Believe but Cannot Prove: Today's Leading Thinkers on Science in the Age of Certainty

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Overview

More than one hundred of the world's leading thinkers write about things they believe in, despite the absence of concrete proof

Scientific theory, more often than not, is born of bold assumption, disparate bits of unconnected evidence, and educated leaps of faith. Some of the most potent beliefs among brilliant minds are based on supposition alone — yet that is enough to push those minds toward making the theory viable.

Eminent cultural impresario, editor, and publisher of Edge (www.edge.org), John Brockman asked a group of leading scientists and thinkers to answer the question: What do you believe to be true even though you cannot prove it? This book brings together the very best answers from the most distinguished contributors.

Thought-provoking and hugely compelling, this collection of bite-size thought-experiments is a fascinating insight into the instinctive beliefs of some of the most brilliant minds today.

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Editorial Reviews

From Barnes & Noble
Edge, John Brockman's web site, could not be more aptly named: Its intellectual provocateur webmaster loves to challenge his cutting-edge guests to push the envelope into new places. In this collection of freewheeling essays, scientists like Daniel Dennett, Steven Pinker, Richard Dawkins, and Jared Diamond answer a seemingly unscientific question: What do you believe in despite having no proof? One hundred ways to stimulate thinking.
Publishers Weekly
The title's question was posed on Edge.org (an online intellectual clearing house), challenging more than 100 intellectuals of every stripe-from Richard Dawkins to Ian McEwan-to confess the personal theories they cannot demonstrate with certainty. The results, gathered by literary agent and editor Brockman, is a stimulating collection of micro-essays (mainly by scientists) divulging many of today's big unanswered questions reaching across the plane of human existence. Susan Blackmore, a lecturer on evolutionary theory, believes "it is possible to live happily and morally without believing in free will," and Daniel Goleman believes children today are "unintended victims of economic and technological progress." Other beliefs are more mundane and one is highly mathematically specific. Many contributors open with their discomfort at being asked to discuss unproven beliefs, which itself is an interesting reflection of the state of science. The similarity in form and tone of the responses makes this collection most enjoyable in small doses, which allow the answers to spark new questions and ideas in the reader's mind. It's unfortunate that the tone of most contributions isn't livelier and that there aren't explanations of some of the more esoteric concepts discussed; those limitations will keep these adroit musings from finding a wider audience. (Mar.) Copyright 2006 Reed Business Information.
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Product Details

  • ISBN-13: 9780060841812
  • Publisher: HarperCollins Publishers
  • Publication date: 2/28/2006
  • Edition number: 1
  • Pages: 272
  • Sales rank: 696,431
  • Product dimensions: 5.31 (w) x 8.00 (h) x 0.61 (d)

Meet the Author

The publisher of the influential online science salon Edge.org, John Brockman is the editor of Thinking, This Explains Everything, This Will Make You Smarter, and What Should We Be Worried About? He founded the literary agency Brockman Inc. and lives in New York City.

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Read an Excerpt

What We Believe but Cannot Prove

Today's Leading Thinkers on Science in the Age of Certainty
By John Brockman

HarperCollins Publishers, Inc.

Copyright © 2006 John Brockman
All right reserved.

ISBN: 0060841818

Chapter One

Martin Rees

Sir Martin Rees is a professor of cosmology and astrophysics and the master of Trinity College at the University of Cambridge. He holds the honorary title of Astronomer Royal and is also a visiting professor at Imperial College London and Leicester University. He is the author of several books, including Just Six Numbers, Our Cosmic Habitat, and Our Final Hour.

I believe that intelligent life may presently be unique to our Earth but has the potential to spread throughout the galaxy and beyond it -- indeed, the emergence of complexity could be near its beginning. If the searches conducted by SETI (the Search for Extra-Terrestrial Intelligence) continue to come up with nothing, that would not render life a cosmic sideshow; indeed, it would be a boost to our self-esteem. Terrestrial life and its fate would be seen as a matter of cosmic significance. Even if intelligence is now unique to Earth, there's enough time ahead for it to permeate at least this galaxy and evolve into a teeming complexity far beyond what we can conceive.

There's an unthinking tendency toimagine that humans will be around in 6 billion years to watch the sun flare up and die. But the forms of life and intelligence that have by then emerged will surely be as different from us as we are from a bacterium. That conclusion would follow even if future evolution proceeded at the rate at which new species have emerged over the past 3.5 or 4 billion years. But posthuman evolution (whether of organic species or artifacts) will proceed far faster than the changes that led to human emergence, because it will be intelligently directed rather than the gradual outcome of Darwinian natural selection. Changes will drastically accelerate in the present century -- through intentional genetic modifications, targeted drugs, perhaps even silicon implants in the brain. Humanity may not persist as a single species for longer than a few more centuries, especially if communities have by then become established away from Earth.

But a few centuries is still just a millionth of the sun's future lifetime -- and the universe probably has a much longer future. The remote future is squarely in the realm of science fiction. Advanced intelligences billions of years hence might even create new universes. Perhaps they'll be able to choose what physical laws prevail in their creations. Perhaps these beings could achieve the computational ability to simulate a universe as complex as the one we perceive ourselves to be in.

My belief may remain unprovable for billions of years. It could be falsified sooner -- for instance, we or our immediate posthuman descendants may develop theories that reveal inherent limits to complexity. But it's a substitute for religious belief, and I hope it's true.

Ray Kurzweil

Ray Kurzweil is an inventor, entrepreneur, and principal developer of (among a host of other inventions) the first print-to-speech reading machine for the blind, the first text-to-speech synthesizer, the first CCD flat-bed scanner, and the first commercially marketed large-vocabulary speech recognition system. Recipient of the National Medal of Technology among many other honors, he is the author of several books, including The Singularity Is Near: When Humans Transcend Biology.

We will find ways to circumvent the speed of light as a limit on the communication of information.

We are expanding our computers and communication systems both inwardly and outwardly. Our chips' features are ever smaller, while we deploy increasing amounts of matter and energy for computation and communication. (For example, we're making a larger number of chips each year.) In one or two decades, we will progress from two-dimensional chips to three-dimensional self-organizing circuits built out of molecules. Ultimately we will approach the limits of matter and energy to support computation and communication.

As we approach an asymptote in our ability to expand inwardly (that is, using finer features), computation will continue to expand outwardly, using materials readily available on Earth, such as carbon. But we will eventually reach the limits of our planet's resources and will expand outwardly to the rest of the solar system and beyond.

How quickly will we be able to do this? We could send tiny self-replicating robots at close to the speed of light, along with electromagnetic transmissions containing the needed software. These nanobots could then colonize faraway planets.

At this point, we run up against a seemingly intractable limit: the speed of light. Although a billion feet per second may seem fast, the universe extends over such vast distances that this appears to represent a fundamental limit on how quickly an advanced civilization (such as we hope to become) can spread its influence.

There are suggestions, however, that this limit is not as immutable as it may appear. Physicists Steve Lamoreaux and Justin Torgerson of the Los Alamos National Laboratory have analyzed data from an old natural nuclear reactor that 2 billion years ago produced a fission reaction lasting several hundred thousand years in what is now West Africa. Analyzing radioactive isotopes left over from the reactor and comparing them with isotopes from similar nuclear reactions today, they determined that the physics constant a (alpha, also called the fine structure constant), which determines the strength of the electromagnetic force, apparently has changed since 2 billion years ago. The speed of light is inversely proportional to a, and both have been considered unchangeable constants. Alpha appears to have decreased by 4.5 parts out of 108. If confirmed, this would imply that the speed of light has increased. There are other studies with similar suggestions, and there is a tabletop experiment now under way at Cambridge University to test our ability to engineer a small change in the speed of light.

Of course, these results will need to be carefully verified. If they are true, it may hold great importance for the future of our civilization. If the speed of light has increased, it has presumably done so not just because of the passage of time but because certain conditions have changed. . . .

Continues...


Excerpted from What We Believe but Cannot Prove by John Brockman Copyright © 2006 by John Brockman. Excerpted by permission.
All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

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  • Anonymous

    Posted February 15, 2012

    Thought provoking and fascinating!

    Enjoyed the hell out of this book, even if i didnt understand most of it. Reading and rereading each essay gave me the chance to digest the author's intentions and ideas--- and what ideas! So interesting.

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  • Anonymous

    Posted August 17, 2010

    No text was provided for this review.

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