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The Emperor's New Mind: Concerning Computers, Minds and the Laws of Physics Paperback – 6 Sep 1990


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Product details

  • Paperback: 480 pages
  • Publisher: Vintage; New edition edition (6 Sept. 1990)
  • Language: English
  • ISBN-10: 0099771705
  • ISBN-13: 978-0099771708
  • Product Dimensions: 23.1 x 15 x 3.6 cm
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (31 customer reviews)
  • Amazon Bestsellers Rank: 819,129 in Books (See Top 100 in Books)
  • See Complete Table of Contents

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Review

perhaps the most engaging and creative tour of modern physics that has ever been written (Sunday Times) --This text refers to an alternate Paperback edition.

About the Author

Roger Penrose is the Rouse Ball Professor of Mathematics at the University of Oxford. He has received a number of prizes and awards, including the 1988 Wolf Prize for physics which he shared with Stephen Hawking for their joint contribution to our understanding of the universe.

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OVER THE PAST few decades, electronic computer technology has made enormous strides. Read the first page
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Customer Reviews

3.9 out of 5 stars

Most Helpful Customer Reviews

26 of 27 people found the following review helpful By A Customer on 16 Feb. 1999
Format: Hardcover
Roger Penrose, one of the world's top physicists, summarizes modern science, examining topics including Turing machines, relativity, quantum physics, black holes, etc. At the end, he argues that the human mind can not be simulated by computers or anything algorithmic. The Emperor's New Mind is my favorite book, although I didn't feel that way the first time I read it. It is quite technical, compared to, for instance, A Brief History of Time, which covers some of the same topics. The second time I read the book, I really dedicated a lot of time to understand the material as well as I could, often working out problems with paper and pencil. This was necessary for me to see that his conclusion was related to the rest of the book. While Penrose obviously can not "prove" his belief, he gives a strong, fascinating arguement, and the book has definitely affected my philosophical views concerning consciousness.
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12 of 13 people found the following review helpful By M. F. Cayley on 18 July 2010
Format: Paperback
This is a profound book which, inspired by investigations into the nature of the human mind and of artificial intelligence, takes the reader on a roller-coaster tour of aspects of computer science, maths and physics. It calls for a lot of concentration and is not for the faint-hearted. Explanations of many concepts are at a fairly technical level, full of equations and symbols, and I could not help feeling that at times Penrose could have presented things more simply without losing the thread of the argument.

The ordinary reader would - as the author himself suggests - be well-advised not to strive to understand all the technical detail: it is possible to grasp the essence of what is being described without following all the intricacies Penrose goes into. The trouble is that this means skimming through much of the book.
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20 of 22 people found the following review helpful By John Bland on 21 July 2006
Format: Paperback Verified Purchase
I found this book stimulating and entertaining in equal measure. It looks at the questions such as -- if we had enough information, we could predict absolutely everything, or not? Is the human mind simply a machine (for example a computer)? Can we actually be transported Star-trek style or not? Are we (including our memories) just a collection of atoms that could be reconstituted?

In answering these questions Penrose embarks on a tour of the mathematical concepts and theories that underpin our understanding of the Universe.

There seems to be much more maths than is really needed, and there is a lot of theory (The book runs to over 500 pages after all). You will also need advanced A level maths to cope (on the basis that I just coped, and that's the level of maths I reached).

Entertaining and enjoyable IF you are interested in Maths. If you are not, stay away.
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1 of 1 people found the following review helpful By A Customer on 23 April 2003
Format: Paperback
At First glance, the topics covered by Roger Penrose may seem unconnected, but incredibly, he manages to connect them seamlessly, and then reaches astounding conclusions about the implications for any theory of everything or any artificial intelligence. On the way, Penrose covers such diverse topics as Turing machines, Tensors and General Relativity, the wave equation and the inner workings of the brain. Thankfully, he explains all of these concepts with such clarity that prior knowledge of them and a degree in mathematics are unnecessary, to gain a full understanding of the book, and the occasional differential equations are not relevant to the theme of the book, and indeed should not discourage any potential reader. Of course, even if you do have good knowledge of the concepts introduced, the book is still a fantastic read, just to see how Penrose links the concepts introduced and reaches conclusions on them.
The book is also rather different to typical books about contemporary physics, which hail Superstring theories as the theory of everything. Penrose does not speak in depth about the newest forms of physics, but instead follows his conclusions from proven physics, and although he makes few specific predictions about the Theory of Everything, he does give a complete overview of the main features that he feels a Theory of Everything should contain. The fact that the conclusions are followed through from the physics explained in the book makes the conclusions much more justifiable than those of Superstring theories, even if you disagree with Penrose's final conclusion.
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Format: Paperback
The aim of the book is to explore the notion of artificial intelligence (AI), whether or not machines can truly "think". In order to get to this question, Penrose first spends a lot of time (most of the book, in fact) looking at a wide variety of seemingly unrelated topics.

After an initial discussion of AI, Penrose launches straight into what is probably the hardest chapter to get your head round. It's all about algorithms, Turing machines and the computability of mathematical problems. He doesn't spare the detail with pages of binary digits and computer programming languages. It takes a long time to work through, but if you can brave it, there is much easier, and more enjoyable, science in later chapters.

Once you get over the initial hump, we ease back into some gentle maths with Penrose first outlining his neo-Platonic view of notions of reality. He does this via some very basic complex analysis, looking at the detail of the Mandelbrot set, though without going into too much depth for the casual reader. From here he looks at the world of classical physics and then quantum physics, giving the reader a general grounding in the basics of modern physics whilst every now and then alluding back to the premise of the book, essentially asking if a machine could ever be constructed that would be capable of making the intuitive leaps that humans have managed in coming to our present understanding of the cosmos.

For the most part, this should be readily understandable with a modicum of scientific education, though to someone who didn't do maths or physics at A-level, much of it may be new and take significantly longer to get to grips with. But even the expert reader shouldn't get complacent.
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