BOOK REVIEW / Quantum leaps: The rediscovery of the mind by John Searle, MIT Press pounds 9.95

FOR MORE than two decades, the Berkeley philosopher John Searle has battled, sometimes single-

handedly, for an intelligent, common-sense refutation of the wilder claims of Artificial Intelligence. He has always done so with wit, clarity and an entertaining pugnacity. Now Searle aims to 'put the final nail in the coffin of the theory that mind is a computer program' with a blistering attack on the crude materialist claims of the AI theorists, and with his own solution to the mind / body problem from the viewpoint of 'biological naturalism'.

Seeing that Newtonian physics tell them the world consists only of particles and forces, the behaviourist, the functionalist and the AI enthusiast try to account for human beings and our psychology in the same way. They are driven to this 'obviously false' position, Searle says, by an understandable fear of the anti-

scientific and 'spiritualist' claims of traditional dualism. In over-reaction, they reduce the mental to a process of computation. They confuse thinking with the simulation of thought.

What is left out of all computer theories of mind is consciousness. Modern philosophers of mind can't see that its subjective properties have any place in Newton's objective natural world. But according to Searle's 'biological naturalism', consciousness is a feature of the brain, and thus subjectivity must have its rightful place as a feature of the biologically natural world. He introduces the idea that it is an 'emergent' property of certain neurobiological processes. That is, it is a radically new property of their complex structure, just as liquidity or solidity are emergent properties of certain molecular groupings. This is both the most promising and the weakest feature of his position.

Searle admits that emergence as he defines it has no new causal properties. In this he displays an ignorance of quantum physics all too characteristic of most mind /

body philosophers. Any emergent quantum system has new causal properties up to a point. Something like a superfluid has them in large degree. Thus Searle makes a strong case for including consciousness within physics, but his own understanding of physics is ultimately too limited to get him where he would like to go.

Arts and Entertainment
Caroline Flack became the tenth winner of Strictly Come Dancing
tvReview: 'Absolutely phenomenal' Xtra Factor presenter wins Strictly Come Dancing final
Arts and Entertainment
J Jefferson Farjeon at home in 1953
booksBooksellers say readers are turning away from modern thrillers and back to golden age of crime writing
Arts and Entertainment
Nick Hewer is to leave The Apprentice after 10 years

TV review Nick Hewer, the man whose eyebrows speak a thousand words, is set to leave The Apprentice

Arts and Entertainment
Female fans want more explicit male sex in Game of Thrones, George R R Martin says

film George RR Martin owns a cinema in Santa Fe

Arts and Entertainment
Clued up: John Lynch and Gillian Anderson in ‘The Fall’

TV review

PROMOTED VIDEO
Arts and Entertainment
Rhys says: 'I'm not playing it for laughs, but I have learnt that if you fall over on stage, people can enjoy that as much as an amazing guitar solo'
musicGruff Rhys on his rock odyssey, and the trouble with independence
Arts and Entertainment
Krysia and Daniel (Hand out press photograph provided by Sally Richardson)
How do today's composers answer the challenge of the classical giant?
Have you tried new the Independent Digital Edition apps?
Arts and Entertainment

ebooksNow available in paperback
Arts and Entertainment

ebooks
News
Shenaz Treasurywala
film
News
tv
Arts and Entertainment
Jason Watkins as Christopher Jefferies
tv
Arts and Entertainment
Star Wars Director JJ Abrams: key character's names have been revealed
film
Arts and Entertainment
Pharrell Williams won two BBC Music Awards for Best Song and International Artist
music
Arts and Entertainment
Mark, Katie and Sanjay in The Apprentice boardroom
TV
Arts and Entertainment

Film The critics but sneer but these unfashionable festive films are our favourites

Arts and Entertainment
Frances O'Connor and James Nesbitt in 'The Missing'

TV We're so close to knowing what happened to Oliver Hughes, but a last-minute bluff crushes expectations

Arts and Entertainment
Joey Essex will be hitting the slopes for series two of The Jump

TV

Who is taking the plunge?
Arts and Entertainment
Katy Perry as an Ancient Egyptian princess in her latest music video for 'Dark Horse'

music
Arts and Entertainment
Dame Judi Dench, as M in Skyfall

film
Arts and Entertainment
Morrissey, 1988

TV
Latest stories from i100
Have you tried new the Independent Digital Edition apps?

ES Rentals

    Independent Dating
    and  

    By clicking 'Search' you
    are agreeing to our
    Terms of Use.

    Surrounded by high-rise flats is a little house filled with Lebanon’s history - clocks, rifles, frogmen’s uniforms and colonial helmets

    Clocks, rifles, swords, frogmen’s uniforms

    Surrounded by high-rise flats is a little house filled with Lebanon’s history
    Return to Gaza: Four months on, the wounds left by Israel's bombardment have not yet healed

    Four months after the bombardment, Gaza’s wounds are yet to heal

    Kim Sengupta is reunited with a man whose plight mirrors the suffering of the Palestinian people
    Gastric surgery: Is it really the answer to the UK's obesity epidemic?

    Is gastric surgery really the answer to the UK's obesity epidemic?

    Critics argue that it’s crazy to operate on healthy people just to stop them eating
    Homeless Veterans appeal: Christmas charity auction Part 2 - now LIVE

    Homeless Veterans appeal: Christmas charity auction

    Bid on original art, or trips of a lifetime to Africa or the 'Corrie' set, and help Homeless Veterans
    Pantomime rings the changes to welcome autistic theatre-goers

    Autism-friendly theatre

    Pantomime leads the pack in quest to welcome all
    The week Hollywood got scared and had to grow up a bit

    The week Hollywood got scared and had to grow up a bit

    Sony suffered a chorus of disapproval after it withdrew 'The Interview', but it's not too late for it to take a stand, says Joan Smith
    From Widow Twankey to Mother Goose, how do the men who play panto dames get themselves ready for the performance of a lifetime?

    Panto dames: before and after

    From Widow Twankey to Mother Goose, how do the men who play panto dames get themselves ready for the performance of a lifetime?
    Thirties murder mystery novel is surprise runaway Christmas hit

    Thirties murder mystery novel is surprise runaway Christmas hit

    Booksellers say readers are turning away from dark modern thrillers and back to the golden age of crime writing
    Anne-Marie Huby: 'Charities deserve the best,' says founder of JustGiving

    Anne-Marie Huby: 'Charities deserve the best'

    Ten million of us have used the JustGiving website to donate to good causes. Its co-founder says that being dynamic is as important as being kind
    The botanist who hunts for giant trees at Kew Gardens

    The man who hunts giants

    A Kew Gardens botanist has found 25 new large tree species - and he's sure there are more out there
    The 12 ways of Christmas: Spare a thought for those who will be working to keep others safe during the festive season

    The 12 ways of Christmas

    We speak to a dozen people who will be working to keep others safe, happy and healthy over the holidays
    Birdwatching men have a lot in common with their feathered friends, new study shows

    The male exhibits strange behaviour

    A new study shows that birdwatching men have a lot in common with their feathered friends...
    Diaries of Evelyn Waugh, Virginia Woolf and Noël Coward reveal how they coped with the December blues

    Famous diaries: Christmas week in history

    Noël Coward parties into the night, Alan Clark bemoans the cost of servants, Evelyn Waugh ponders his drinking…
    From noble to narky, the fall of the open letter

    From noble to narky, the fall of the open letter

    The great tradition of St Paul and Zola reached its nadir with a hungry worker's rant to Russell Brand, says DJ Taylor
    A Christmas ghost story by Alison Moore: A prodigal daughter has a breakthrough

    A Christmas ghost story by Alison Moore

    The story was published earlier this month in 'Poor Souls' Light: Seven Curious Tales'