[PDF/EBOOK] Gödel Escher Bach An Eternal Golden Braid By Douglas R. Hofstadter – Kindle ePUB & PDF

Douglas R. Hofstadter ¿ 6 free read

Gödel Escher Bach An Eternal Golden Braid

download í PDF, eBook or Kindle ePUB ¿ Douglas R. Hofstadter free read Gödel Escher Bach An Eternal Golden Braid ð PDF, eBook or Kindle ePUB Activity transcends the system that supports it If life can grow out of the formal chemical substrate of the cell if consciousness can emerge out of a formal system of firing neurons the from Randall Munroe Mouseover says This is the reference implementation of the self referential joke I know I know I know I m just kidding myself I m as likely to read this as a book on string theory Please don t Please don t tell me I have read a book on string theory I m trying to forget the whole sordid story But I hope you like thisA friend of mine established The Harvester Press in the 1970s He did it on a wing and a prayer he was a young teaching academic who couldn t find in print the old literary books he wanted to use as texts and so he set about publishing them He was probably as surprised as anybody when the idea uickly became viable He put together a list of books sold them as a subscription to libraries and away he went He wasn t an academic any he was a proper publisher with a strong reputation for intellectually high end outputAt some point he got sent a completely insane looking ms ridiculously long bits of paper stuck on bits of paper all these pictures which hadn t any copyright permission and as for the titlewell who was going to buy a book called thathe sent it back with a polite letterSome years later he was in NY lunching with the boss of Basic Books a US academic publisher He wanted to publish this strange ms he d been given As he was describing it John interrupted with Godel Escher Bach I presume Evidently Hofstadter had gotten lucky and had on loan a very early word processor The whole thing was no longer the shambles it once was Basic Books was keen John got talked into taking some thousands of copies This turned out well for him but What he had lost Ouch Godel Escher Bach in English and in translation would have made him many millions I won t say he cried about it but he did ask for a discount on the books he was buying After such a sad tale it was impossible to say no Listening Woman by Tony Hillerman Summary & Study Guide use as texts and so he set about publishing them He was probably as surprised as anybody when the idea The White Nights of Ramadan uickly became viable He put together a list of books sold them as a subscription to libraries and away he went He wasn t an academic any he was a proper publisher with a strong reputation for intellectually high end outputAt some point he got sent a completely insane looking ms ridiculously long bits of paper stuck on bits of paper all these pictures which hadn t any copyright permission and as for the titlewell who was going to buy a book called thathe sent it back with a polite letterSome years later he was in NY lunching with the boss of Basic Books a US academic publisher He wanted to publish this strange ms he d been given As he was describing it John interrupted with Godel Escher Bach I presume Evidently Hofstadter had gotten lucky and had on loan a very early word processor The whole thing was no longer the shambles it once was Basic Books was keen John got talked into taking some thousands of copies This turned out well for him but What he had lost Ouch Godel Escher Bach in English and in translation would have made him many millions I won t say he cried about it but he did ask for a discount on the books he was buying After such a sad tale it was impossible to say no

free read Gödel Escher Bach An Eternal Golden Braid

download í PDF, eBook or Kindle ePUB ¿ Douglas R. Hofstadter free read Gödel Escher Bach An Eternal Golden Braid ð PDF, eBook or Kindle ePUB Douglas Hofstadter's book is concerned directly with the nature of “maps” or links between formal systems However according to Hofstadter the formal system that underlies all mental Expand your mind Not for the faint of heart yet by no means dry Hofstadter makes some fascinating observations about emergent properties such as intelligence and diverts us into the extremely heavy mathematics of Godel via the self referencing systems that are Bach s fugues and Escher s optical illusion style artworkBefore too many chapters have passed though you ll be firmly in number theory land albeit doled out as painlessly as is possible with such stuff leavened with imagined philosophical debates between ancient Greeks and other proxies I seem to remember Achilles spends a lot of time talking to a tortoiseNumber theory reuires no great resource of mathematical knowledge just an extremely agile and open mind If you let him Hofstadter will show you how Godel destroyed Betrand Russell s Principa Mathematica his attempt to logically deduce all of mathematics from a set of axioms Godel shows us that I paraphrase drastically that all logical systems allow statements about natural numbers that are true but unprovable within the systemAnd somehow this isn t even what the book s about As the pages turn you will be steadily tested and at some point it will become apparent you ve not been paying close enough attention However even without taking pen to paper and labouring through the instructive exercises you can get a pretty decent glimpse at some exciting and fundamental thinking Join my 3 emails a year newsletter prizes

download í PDF, eBook or Kindle ePUB ¿ Douglas R. Hofstadter

download í PDF, eBook or Kindle ePUB ¿ Douglas R. Hofstadter free read Gödel Escher Bach An Eternal Golden Braid ð PDF, eBook or Kindle ePUB N so too will computers attain human intelligence Gödel Escher Bach is a wonderful exploration of fascinating ideas at the heart of cognitive science meaning reduction recursion and muc If I were clever enough I would write this review as a fugue This is the formal structure that Hofstadter uses throughout G del Escher Bach Whether the whole book is a fugue I m not smart enough to tell But the fugue is used as a metaphor for layers of brain activity thoughts superimposed over the hardware of the brain the neuronsIn fact though I would recommend starting at the beginning of the book I suppose one might begin anywhere and read through and back again a la Finnegan s Wake No the book isn t designed this way but considering that I couldn t discern a solid central idea until page 302 of the book and that this was only one of several theses in the book I wouldn t be surprised if it proved possible to begin anywhereThe idea presented there is To suggest ways of reconciling the software of mind with the hardware of brain is a main goal of this book The uestion is does it succeed I would argue that it does notAnd it does not matterThere are some works such as Giorgio De Santilliana s Hamlet s Mill or Daniel Schacter s Searching for Memory that are so vast and all encompassing that it is difficult to pin down one central thesis These are the kind of works that you might not understand in your lifetime the thoughts of a genius transposed directly to paper that unless you are an eually gifted person or a savant you cannot hope to fully comprehend Still the threads and nuggets of gold that are spread throughout make it worth the time spent in the dark mines of incomprehension if only to find that one fist sized chunk of precious metal and appreciate its beauty set against the background of your own ignoranceAs far as I can tell the book is really about intelligence both human and artificial Hofstadter does a lot of preliminary work priming the reader s brain with assumptions taken from theoretical mathematics and computer programming But don t let that scare you off I m no math whiz but I found most of the logical puzzles at least comprehensible after a few careful reads Hofstadter also gives the occasional exercise leaving the reader without an answer to his uestion Like all good teachers Hofstadter understands that the students who work things out on their own are the best prepared students That doesn t mean that you won t understand many of the book s salient points if you can t successfully answer his uestions You can But in order to understand the finer points I suppose one would have to have a pretty good grasp on the answers to those uestionsI don tAnd it didn t matterWhat did matter for me was having a little bit of a background in the idea of nested hierarchies and a smidgen of knowledge in non linear dynamics aka chaos theory For the former I d recommend Valerie Ahl s seminal Hierarchy Theory A Vision Vocabulary and Epistemology For the latter just do what you were going to do anyway and look it up on Wikipedia I won t tell anyoneThe idea of nested hierarchies is central to the understanding of what makes human intelligence different from machine intelligence The short story is this human thought is structured from the ground up according to the basic laws of physics in particular electricity because it is through electricity that neural networks well network The issue is that the layers interceding between neural electrical firings and human thought are tangled They are explainable or ought to be explainable by a series of tangled layers that lead up to the higher functioning of thought Again this is one of the central points of the bookAnd this is the point where Hofstadter utterly failsAnd it doesn t matterYou see Hofstadter never convincingly shows those transitional layers between neural activity and thought though he claims they must be there He claims that it should be possible to create an Artificial Intelligence AI that is every bit as human as human intelligence The problem is how do you define human intelligenceHofstadter presents the problem like this Historically people have been na ve about what ualities if mechanized would undeniably constitute intelligence Sometimes it seems as though each new step towards AI rather than producing something which everyone agrees is real intelligence merely reveals what real intelligence is not If intelligence involves learning creativity emotional responses a sense of beauty a sense of self then there is a long road ahead and it may be that these will only be realized when we have totally duplicated a living brainOne of the big issues in identifying whether an AI is actually intelligent is the notion of slipperiness The concept here is that human thoughts can deal in a larger possibility space my words than machine intelligence Hofstadter uotes from an article in The New Yorker in which two statements are made that while possible would constitute lunacy on the part of anyone who actually believed them They are If Leonardo da Vinci had been born a female the ceiling of the Sistine Chapel might never have been painted And if Michelangelo had been Siamese twins the work would have been completed in half the timeThen he points out another sentence that was printed without blushing I think he Professor Philipp Frank would have enjoyed both of these books enormouslyHofstadter comments Now poor Professor Frank is dead and clearly it is nonsense to suggest that someone could read books written after his death So why wasn t this serious sentence scoffed at Somehow in some difficult to pin down sense the parameters slipped in this sentence do not violate our sense of possibility as much as in the earlier examples This allowable playfulness is something so complex and multi layered that an AI would be hard pressed to correctly parse an appropriate reactionThis is just one case portraying the difficulty inherent in trying to define and understand intelligence and the connection between brain hardware and mind thought The book is rife with them I m not convinced that Hofstadter was fully convinced that there will ever be a machine so intelligent as to completely mirror human thoughtAnd one last time it doesn t matterThis book has set me to thinking thinking hard about what it means to be human Not merely as an intellectual exercise but deep in my emotional breadbasket if you will I feel human in a way that I can t explain when I think about the difficulty of trying to translate my hopes fears love creativity wordplay happiness sadness and ambitions into machine language There has been a lot of talk lately about singularity that moment when machines become self aware I m beginning to think that it will never happen And I m fine with thatBesides Hofstadter gives an implicit warning when uoting Marvin Minsky who said When intelligent machines are constructed we should not be surprised to find them as confused and as stubborn as men in their convictions about mind matter consciousness free will and the likeIn other words if we do somehow construct true Artificial Intelligence with the same capacity for thought and feeling as human beings whose to say the person we create isn t going to turn out to be a real douchebag Terminator anyone