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Title: Infinity and the Mind by Rudy Rucker ISBN: 0-691-00172-3 Publisher: Princeton Univ Pr Pub. Date: 15 May, 1995 Format: Paperback Volumes: 1 List Price(USD): $22.95 |
Average Customer Rating: 4.5 (14 reviews)
Rating: 5
Summary: At the intersection of parallel lines...
Comment: Rudy Rucker, son of a cleric and mathematics whiz kid, produced this book on 'Infinity and the Mind' years ago, but reading and re-reading it, I continue to get insights and the chance to wrap my mind around strange concepts.
'This book discusses every kind of infinity: potential and actual, mathematical and physical, theological and mundane. Talking about infinity leads to many fascinating paradoxes. By closely examining these paradoxes we learn a great deal about the human mind, its powers, and its limitations.'
This book was intended to be accessible by those without graduate-level education in mathematics (i.e., most of us) while still being of interest to those even at the highest levels of mathematical expertise.
Even if the goal of infinity is never reached, there is value in the journey. Rucker provides a short overview of the history of 'infinity' thinking; how one thinks about divinity is closely related often, and how one thinks about mathematical and cosmological to-the-point-of-absurdities comes into play here. Quite often infinite thinking becomes circular thinking: Aquinas's Aristotelian thinking demonstrates the circularity in asking if an infinitely powerful God can make an infinitely powerful thing; can he make an unmade thing? (Of course, we must ask the grammatical and logical questions here--does this even make sense?)
Rucker explores physical infinities, spatial infinities, numerical infinities, and more. There are infinites of the large (the universe, and beyond?), infinities of the small (what is the smallest number you can think of, then take half, then take half, then take half...), infinities that are nonetheless limited (the number of divisions of a single glass of water can be infinite, yet never exceed the volume of water in the glass), and finally the Absolute.
'In terms of rational thoughts, the Absolute is unthinkable. There is no non-circular way to reach it from below. Any real knowledge of the Absolute must be mystical, if indeed such a thing as mystical knowledge is possible.'
At the end of each chapter, Rucker provides puzzles and paradoxes to tantalise and confuse.
* Consider a very durable ceiling lamp that has an on-off pull string. Say the string is to be pulled at noon every day, for the rest of time. If the lamp starts out off, will it be on or off after an infinite number of days have passed?
Rucker explores the philosophical points of infinity with wit and care. He explores the ideas behind and implications of Gödel's Incompleteness Theorem, and leads discussion and excursion into self-referential problems and set theory problems and solutions.
He also discusses, contrary to conventional wisdom, the non-mechanisability of mathematics. We tend to think in our day that mathematics is the one mechanical-prone discipline, unlike poetry or creative arts and more 'human' endeavours. But Rucker discusses the problems of situations which require decision-making and discernment in mathematical choices that no machine can (yet!) make.
* Consider the sentence S: This sentence can never be proved. Show that if S is meaningful, then S is not provable, and that therefore you can see that S must be true. But this constitutes a proof of S. How can the paradox be resolved?
This is a beautifully complex and intriguing book on the edges of mathematics and philosophical thinking, which is nonetheless accessible and intellectually inviting. You'll wonder why math class was never this fun!
Rating: 5
Summary: a mind-blowing trip to the infinite
Comment: What is infinity? How do we train our minds to understand the idea? This one of the hardest questions to answer for non-professional mathematicians, and one that Rucker address superbly - and, believe it or not entertainingly in this excellent book. And once you think you grasped that, how about a higher level infinity? Next one? Infinite series of higher level infinities? Sound very scary, and it is. It takes an amazing capacity to explain these concepts to a (relative) layman, and Rucker has it in abundance. An exhilarating intellectual tour de force, perhaps comparable to climbing mount Everest - infinite number of times, with deep philosophical, and perhaps, religious connections, presented in a light, funny, and yet rigorous manner. The book also provides a history of the concept of the infinite, and interesting people who developed it. A must read for a curious mind.
Rating: 5
Summary: A perfect book for someone like me
Comment: I know very little about any of the subjects discussed in this book, although I do have a degree in philosophy of science, and I liked this book a lot.
I can't believe I made it through 7 years of senior school and 2 years of degree level maths and nobody ever bothered to tell me about infinity, transfinite numbers, set theory and its relationships with, and underpinning of other branches of mathematics in a way I could understand rather than simply regurgitate. Rucker on the other hand manages to do this in 362 pages.
I slso found the stuff about Godel and the impossibility of complete formulisms very useful, not only philosophically, but also just for my own peace of mind.
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Title: Geometry, Relativity and the Fourth Dimension by Rudolf Rucker ISBN: 0486234002 Publisher: Dover Pubns Pub. Date: 01 June, 1977 List Price(USD): $7.95 |
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Title: White Light 3 Ed by Rudy V. B. Rucker, John Shirley ISBN: 156858198X Publisher: Four Walls Eight Windows Pub. Date: 11 May, 2001 List Price(USD): $13.95 |
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Title: Spaceland: A Novel of the Fourth Dimension by Rudy Rucker ISBN: 0765303671 Publisher: Tor Books Pub. Date: 04 July, 2003 List Price(USD): $13.95 |
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Title: Flatland : A Romance of Many Dimensions by Edwin A. Abbott ISBN: 048627263X Publisher: Dover Pubns Pub. Date: 21 September, 1992 List Price(USD): $1.50 |
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Title: The Fourth Dimension : A Guided Tour of the Higher Universes by Rudolf Rucker, David Povilaitis ISBN: 0395393884 Publisher: Mariner Books Pub. Date: 11 September, 1985 List Price(USD): $16.00 |
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