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Godel, Escher, Bach: An Eternal Golden Braid
 
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Godel, Escher, Bach: An Eternal Golden Braid [Paperback]

Douglas R. Hofstadter
4.5 out of 5 stars  See all reviews (149 customer reviews)
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Twenty years after it topped the bestseller charts, Douglas R. Hofstadter's Gödel, Escher, Bach: An Eternal Golden Braid is still something of a marvel. Besides being a profound and entertaining meditation on human thought and creativity, this book looks at the surprising points of contact between the music of Bach, the artwork of Escher, and the mathematics of Gödel. It also looks at the prospects for computers and artificial intelligence (AI) for mimicking human thought. For the general reader and the computer techie alike, this book still sets a standard for thinking about the future of computers and their relation to the way we think.

Hofstadter's great achievement in Gödel, Escher, Bach was making abstruse mathematical topics (like undecidability, recursion, and 'strange loops') accessible and remarkably entertaining. Borrowing a page from Lewis Carroll (who might well have been a fan of this book), each chapter presents dialogue between the Tortoise and Achilles, as well as other characters who dramatize concepts discussed later in more detail. Allusions to Bach's music (centering on his Musical Offering) and Escher's continually paradoxical artwork are plentiful here. This more approachable material lets the author delve into serious number theory (concentrating on the ramifications of Gödel's Theorem of Incompleteness) while stopping along the way to ponder the work of a host of other mathematicians, artists, and thinkers.

The world has moved on since 1979, of course. The book predicted that computers probably won't ever beat humans in chess, though Deep Blue beat Garry Kasparov in 1997. And the vinyl record, which serves for some of Hofstadter's best analogies, is now left to collectors. Sections on recursion and the graphs of certain functions from physics look tantalizing, like the fractals of recent chaos theory. And AI has moved on, of course, with mixed results. Yet Gödel, Escher, Bach remains a remarkable achievement. Its intellectual range and ability to let us visualize difficult mathematical concepts help make it one of this century's best for anyone who's interested in computers and their potential for real intelligence. --Richard Dragan

Topics Covered: J.S. Bach, M.C. Escher, Kurt Gödel: biographical information and work, artificial intelligence (AI) history and theories, strange loops and tangled hierarchies, formal and informal systems, number theory, form in mathematics, figure and ground, consistency, completeness, Euclidean and non-Euclidean geometry, recursive structures, theories of meaning, propositional calculus, typographical number theory, Zen and mathematics, levels of description and computers; theory of mind: neurons, minds and thoughts; undecidability; self-reference and self-representation; Turing test for machine intelligence.

Review

"Even without the contemporary relevance lent the book by the specter of global warming. The Little Ice Age would be an engrossing historical volume."

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Customer Reviews

149 Reviews
5 star:
 (114)
4 star:
 (13)
3 star:
 (10)
2 star:
 (4)
1 star:
 (8)
 
 
 
 
 
Average Customer Review
4.5 out of 5 stars (149 customer reviews)
 
 
 
 
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10 of 10 people found the following review helpful
5.0 out of 5 stars A wonderful read for all aspiring thinkers, July 9 2004
By 
Jack Mansfield (Lebanon, IN United States) - See all my reviews
This review is from: Godel, Escher, Bach: An Eternal Golden Braid (Paperback)
The Atlanta Journal Constitution describes Gödel, Escher, Bach (GEB) as "A huge, sprawling literary marvel, a philosophy book, disguised as a book of entertainment, disguised as a book of instruction." That is the best one line description of this book that anybody could give. GEB is without a doubt the most interesting mathematical book that I have ever read, quickly making its place into the Top 5 books I have ever read.
The introduction of the book, "Introduction: A Musico-Logical Offering" begins by quickly discussing the three main participants in the book, Gödel, Escher, and Bach. Gödel was a mathematician who founded Gödel's Incompleteness Theorem, which states, as Hofstadter paraphrases, "All consistent axiomatic formulations of number theory include undecidable propositions." This is what Hofstadter calls the pearl. This is one example of one of the recurring themes in GEB, strange loops.
Strange loops occur when you move up or down in a hierarchical manner and eventually end up exactly where you started. The first example of a strange loop comes from Bach's Endlessly rising canon. This is a musical piece that continues to rise in key, modulating through the entire chromatic scale, ending at the same key with which he began. To emphasize the loop Bach wrote in the margin, "As the modulation rises, so may the King's Glory."
The third loop in the introduction comes from an artist, Escher. Escher is famous for his paintings of paradoxes. A good example is his Waterfall; Hofstadter gives many examples of Escher's work, which truly exemplify the strange loop phenomenon.
One feature of GEB, which I was particularly fond of, is the 'little stories' in between each chapter of the book. These stories which star Achilles and the Tortoise of Lewis Carroll fame, are illustrations of the points which Hofstadter brings out in the chapters. They also serve as a guidepost to the careful reader who finds clues buried inside of these sections. Hofstadter introduces these stories by reproducing "What the Tortoise Said to Achilles" by Lewis Carroll. This illustrates Zeno's paradox, another example of a strange loop.
In GEB Hofstadter comments on the trouble author's have with people skipping to the end of the book and reading the ending. He suggests that a solution to this would be to print a series of blank pages at the end, but then the reader would turn through the blank pages and find the last one with text on it. So he says to print gibberish throughout those blank pages, again a human would be smart enough to find the end of the gibberish and read there. He finally suggests that authors need to write many pages more of text than the book requires just fooling the reader into having to read the entire book. Perhaps Hofstadter employs this technique.
GEB is in itself a strange loop. It talks about the interconnectedness of things always getting more and more in depth about the topic at hand. However you are frequently brought back to the same point, similarly to Escher's paintings, Bach's rising canon, and Gödel's Incompleteness theorem. A book, which is filled with puzzles and riddles for the reader to find and answer, GEB, is a magnificently captivating book.
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2 of 2 people found the following review helpful
4.0 out of 5 stars overrated, but still very good, Feb 28 2004
By A Customer
This review is from: Godel, Escher, Bach: An Eternal Golden Braid (Paperback)
No book could live up to this hype and praise, but still very worthwhile. It is best when describing difficult concepts of logic and computer science, weak when dragging in Zen and a tedious detour into molecular biology.
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4.0 out of 5 stars Multi-faceted Thesis, Nov 28 2003
This review is from: Godel, Escher, Bach: An Eternal Golden Braid (Paperback)
Ancient runic languages scrawled onto South Pacific stones. Gödel's Incompleteness Theorum. Shifted perspectives in artistic pencil pictures. Modern artificial intelligence research. Masterpieces of Baroque harmony.
It's not often that bestselling books manage to link all of the above items in a highly satisfying blend of fact and philosophy, but Gödel, Escher, Bach: An Eternal Golden Braid defies both convention and classification.
The book is such a sprawling, wide-ranging argument that it's difficult to know where to start. Personally, I most enjoyed the chapters on the location of meaning within symbols; Hofstadter's description of the essential elements of a message's structure caught my interest because it seemed applicable in many fields: literature, cryptography, and psychology, to start. I was also quite intrigued by his exploration of the brain's mode of operation: sense impressions stored as complex 'symbols.' Fascinating. The long sections on mathematics and the often goofy dialogue chapters were trying, yes, but persevere; better parts lie in store.
Hofstadter's case is best made when he follow a topic through many disciplines. Though I ultimately disagree with his position on the feasibility of artificial intelligence, he has produced a stimulating read, and I am thankful for it. It is far superior to my other late-night literary conquest of the summer (Harry Potter and the Order of the Phoenix) and I recommend it to anyone with pondering time to spare.
Oh, and as a side note: don't buy Yudkowsky's review. Nothing personal, but this isn't the only thinking man's book out there. It just investigates so many nooks and crannies that almost anyone can find something to further pursue.
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