Unweaving the Rainbow

Unweaving the Rainbow

Infobox Book
name = Unweaving the Rainbow
title_orig =
translator =


image_caption =
author = Richard Dawkins
illustrator =
cover_artist =
country =
language =
series =
subject = Evolutionary biology
genre =
publisher = Boston : Houghton Mifflin
release_date = 1998
english_release_date =
media_type =
pages = 336
isbn = ISBN 0-618-05673-4
preceded_by = Climbing Mount Improbable
followed_by = A Devil's Chaplain

"Unweaving the Rainbow" (subtitled "Science, Delusion and the Appetite for Wonder") is a 1998 book by Richard Dawkins, discussing the relationship between science and the arts from the perspective of a scientist.

Dawkins addresses the common perception that science and art are necessarily at odds. Driven by the responses to his books "The Selfish Gene" and "The Blind Watchmaker" wherein readers resented his naturalistic world view, Dawkins felt the need to explain that, as a scientist, he saw the world as full of wonders and a source of pleasure. This pleasure was not in spite of, but rather because he does not assume as cause the inexplicable actions of a deity but rather the understandable laws of nature.

His starting point is John Keats' well-known accusation that Isaac Newton destroyed the beauty of the rainbow by explaining it. The agenda of the book is to show the reader that science does not destroy, but rather discovers poetry in the patterns of nature.

ummary of the logical arguments

The following summary of the book's arguments in favour of science does not attempt to reproduce the actual explanations of scientific phenomena (how DNA works, petwhac, etc.), which in fact form most of the text.

Preface

It is of little concern whether or not science can prove that theultimate fate of the cosmos lacks purpose: we live our lives regardless at a "human" level, according to ambitions and perceptions which come morenaturally. Therefore, science should not be feared as a sort of cosmologicalwet blanket. In fact, those in search of beauty or poetry in their cosmologyneed not turn to the paranormal or even necessarily restrict themselves to the
mysterious: science itself, the business of unravelling mysteries, is beautifuland poetic. (The rest of the preface sketches an outline of the book, makes
acknowledgements, etc.)

The anaesthetic of familiarity

The first chapter describes several ways in which the universe appears beautiful andpoetic when viewed scientifically. However, it first introduces an additionalreason to embrace science. Time and space are vast, so the probability that the reader came to be alive here and now, as opposed to another time or place,was slim. More important, the probability that the reader came to be alive at all wereeven slimmer: the correct structure of atoms had to align in the universe.Given how special these circumstances are, the "noble" thing to do is employ the allottedseveral decades of human life towards understanding that universe. Rather than simply feeling connected with nature, one should rise above this "anaesthetic of familiarity" and "observe" the universe scientifically.

Drawing room of dukes

This chapter describes a third reason to embrace science (the first two beingbeauty and duty): improving one's performance in the arts. Science isoften presented publicly in a translated format, "dumbed down" to fitthe language and existing ideas of non-scientists. This offers adisservice to the public, who are capable of appreciating the beauty of the universe nearly as deeply asa scientist can. The successful communication of unadulterated scienceenhances, not confuses, the arts; after all, poets (Dawkins' synonym forartists -- see page 24) and scientists are motivated by a similar spirit ofwonder. We should therefore battle the stereotype that science is difficult,uncool, and not useful for the common person.

Barcodes in the stars

Studying a phenomenon, such as a flower, cannot detract from its beauty.First, some scientists, such as Feynman, are able to appreciate the aestheticsof the flower while engaged in their study. Second, the mysteries whichscience unfolds lead to new and more exciting mysteries; for example, botany'sfindings might lead us to wonder about the workings of a fly's consciousness.This effect of multiplying mysteries should satisfy even those who think thatscientific understanding is at odds with aesthetics, e.g. people who agree withEinstein that "the most beautiful thing we can experience is the mysterious".(For evidence, the rest of this chapter discusses the fascinating science andbeautiful new mysteries which followed in the wake of Newton's "unweaving" ofthe rainbow, i.e. his explanation of the prismatic effects of moist air.)

Barcodes on the air

This chapter offers more evidence that science is fun and poetic, by exploring
sound waves, birdsong, and low-frequency phenomena such as pendula and periodic
mass extinctions.

Barcodes at the bar

A fourth reason to embrace science is that it can help deliver justice in acourt of law, via DNA fingerprinting or even via simple statistical reasoning.Everyone should learn the scientist's art of probability assessment, to makebetter decisions.

Hoodwink'd with faery fancy

This chapter explores what Dawkins considers to be fallacies in astrology, religion, magic, and
extraterrestrial visitations. Credulity and Hume'scriterion are also discussed.

Unweaving the uncanny

Amazing coincidences are much more common than we may think, and sometimes,when over-interpreted, they lead to faulty conclusions. Statistical significance tests can help determine which patterns are meaningful.

Huge cloudy symbols of a high romance

Unlike "magisterial poetry" (where metaphors and pretty language are used todescribe the familiar), "pupillary poetry" uses poetic imagery to assist ascientist's thinking about the exotic (e.g. consider "being" an electrontemporarily). Although it is useful, some authors take pupillary poetry toofar, and, "drunk on metaphor", they produce "bad science", i.e. postulatefaulty theories. This is powered by humanity's natural tendency to look forrepresentations.

The selfish cooperator

Genes compete with each other, but this occurs within the context ofcollaboration, as is shown with examples involving mitochondria, bacteria, and
termites. Two types of collaboration are co-adaptation (tailoringsimultaneously thedifferent parts of an organism, such as flower colour and flower markings), andco-evolution (two species changing together; e.g. predator and prey runningspeeds may increase together in a sort of arms race).

The genetic Book of the Dead

The body of any organism provides clues about its habitat. The genes allow oneto reconstruct a picture of the range of ways of life that the species hasexperienced; in this sense DNA would act as a palimpsestic "digital archive" ifonly its language of encoding history could be fully understood. Finally, thecurious genetics of cuckoos is discussed.

Reweaving the world

The brain is akin to a powerful computer, which creates a sort of virtual reality to model economically the environment. Neural circuitry isdiscussed, and a comparison is made between brains and genes: albeitover different time scales, both record the environment's past in order tohelp the organism make the optimal actions in the (predicted) future.

The balloon of the mind

The simultaneous explosions in hardware and software of the 20th centuryare together an example of what Dawkins calls "self-feeding co-evolution".A similar event occurred over a longer time scale (millions of years) whenthe minds and brains of our ancestors simultaneously improved veryrapidly. Five possible triggers of this improvement were: language, map reading, ballistics, memes, and metaphors/analogies.

Conclusion

The final two paragraphs of "The balloon of the mind" conclude by saying that human beings are the only animal with a sense of purpose in life, and that that purpose shouldbe to construct a comprehensive model of how the universe works.

Petwhac

The book coins an acronymical term, "Petwhac" "(Population of Events That Would Have Appeared Coincidental)". This is defined as all those events that may be considered to be a 'coincidence' if studied casually, but are both possible and statistically probable.

A way to get an idea of how to use the petwhac is as follows. Say you see a friend from school you have not seen for years when you are on holiday (an unlikely event); before saying its fate or coincidence, think what is in the petwhac (meeting any friend from the same time period at least, friends of your brothers, sisters or parents, old flames, neighbours, teachers, someone who worked in the local chip-shop.. the list is probably endless, and all would seem coincidental). In short: the bigger the petwhac, the stronger case you have to avoid ascribing something to fate or coincidence.

Dawkins offers several examples of petwhacs in the book, two of which are the bedside clock of a woman (Richard Feynman's wife) stopping exactly when she died, and a psychic who stops the watches of his television audience.

The first is explained by the fact that the clock had a mechanical defect which made it stop when tilted off the horizontal, which is what a nurse did to read the time of death in poor lighting conditions. The matter of the watches, in Dawkins' own words, is explained thus —

"If somebody's watch stopped three weeks after the spell was cast, even the most credulous would prefer to put it down to chance. We need to decide how large a delay would have been judged by the audience as sufficiently simultaneous with the psychic's announcement to impress. About five minutes is certainly safe, especially since he can keep talking to each caller for a few minutes before the next call ceases to seem roughly simultaneous. There are about 100,000 five-minute periods in a year. The probability that any given watch, say mine, will stop in a designated five-minute period is about 1 in 100,000. Low odds, but there are 10 million people watching the show. If only half of them are wearing watches, we could expect about 25 of those watches to stop in any given minute. If only a quarter of these ring in to the studio, that is 6 calls, more than enough to dumbfound a naïve audience. Especially when you add in the calls from people whose watches stopped the day before, people whose watches didn't stop but whose grandfather clocks did, people who died of heart attacks and their bereaved relatives phoned in to say that their 'ticker' gave out, and so on."

Dawkins defends his choice of the word "population" by writing "Population may seem anodd word, but it is the correct statistical term.", adding "I won't keep using capital letters because they stand so unattractively on the page."

External links

* [http://video.google.com/videoplay?docid=2033780970508916664 "Charlie Rose", April 11, 2000] - video interview with Dawkins about the book.
* [http://www.americanscientist.org/template/BookReviewTypeDetail/assetid/15643;jsessionid=baafw3wjTT-YwB Dawkins's Rainbow Reduces Science to Truth, Beauty—and Fantasy] - reviewed by Robert N. Proctor, "American Scientist".
* [http://www.simonyi.ox.ac.uk/dawkins/WorldOfDawkins-archive/Media/meaning_of_life.shtml Richard Dawkins: The man who knows the meaning of life] review from "The Guardian".
* [http://www.simonyi.ox.ac.uk/dawkins/WorldOfDawkins-archive/Media/UTR_the_spectator.shtml How, Why and Wow!] - reviewed by Jonathan Gathorne-Hardy, "The Spectator".
* [http://www.simonyi.ox.ac.uk/dawkins/WorldOfDawkins-archive/Media/UTR_mail_on_sunday.shtml The Beauty of Applied Science] - review from " Mail on Sunday".
* [http://books.guardian.co.uk/reviews/scienceandnature/0,,96476,00.html There is Poetry in Science] - reviewed by Melvyn Bragg, "The Observer".
* [http://www.simonyi.ox.ac.uk/dawkins/WorldOfDawkins-archive/Media/UTR_literary_review.shtml Everyone a Scientist] - reviewed by John Gribbin, "The Literary Review".
* [http://www.sfgate.com/cgi-bin/article.cgi?file=/examiner/archive/1998/11/22/STYLE8679.dtl The Poetry of Science] - reviewed by Sam Hurwitt, "The San Francisco Examiner".
* [http://archive.salon.com/21st/books/1998/12/22books.html The Science of Selfishness] - reviewed by Andrew Brown, "Salon".
* [http://www.simonyi.ox.ac.uk/dawkins/WorldOfDawkins-archive/Media/UTR_Science.shtml Nature of Science: A Wondrous and Poetic Spectrum] reviewed by Charles M. Vest, "Science".
* [http://query.nytimes.com/gst/fullpage.html?res=9D02E7DD1E3FF933A25752C0A96F958260 Frauds! Fakes! Phonies!] - reviewed by Timothy Ferris, "The New York Times".
* [http://www.simonyi.ox.ac.uk/dawkins/WorldOfDawkins-archive/Media/UTR_WSJ.shtml Unweaving the Rainbow ] reviewed by Paul R. Gross, "The Wall Street Journal.
* [http://www.csicop.org/si/9903/dawkins.html Finding Awe, Reverence, and Wonder in Science] - reviewed by Kendrick Frazier, "Skeptical Inquirer".
* [http://www.complete-review.com/reviews/dawkinsr/unweaving.htm Unweaving the Rainbow] - review from "The Complete Review".
* [http://www.dna.caltech.edu/~winfree/poet.pdf The Scientist As Poet] - Arthur Winfree's 1964 essay


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