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The Genius of Turing (jgc.org)
93 points by jgrahamc on Jan 28, 2011 | hide | past | favorite | 23 comments



A less highlighted contribution of Turing is the Good-Turing estimator. http://en.wikipedia.org/wiki/Good%E2%80%93Turing_frequency_e... It is used for predicting the probability of occurrence of objects belonging to a set of unknown cardinality. For example to answer questions like how many words did Shakespeare actually know. It finds heavy use in statistical NLP. http://nltk.googlecode.com/svn/trunk/doc/api/nltk.probabilit...

A trivia that I find interesting as an Indian is that his parents came from a background in the executive branch of the Indian government.


Alan Turing is one of my personal heroes and was a genius of unmatched ability. In almost all ways he was a man ahead of his time. It is a huge shame on the British government that his life ended the way it did.


At least they apologized. Well, the modern state did.


Andrew Hodges' excellent biography of Turing left quite an impression on me as I read it while stuck in the Camusunary mountain bothy on Skye by myself waiting for the weather to clear - which took about five days!

http://www.turing.org.uk/book/

http://en.wikipedia.org/wiki/Camasunary

Both are recommended, individually or as a combination :-)


Hodge's biography is great. Also recommended is "The Annotated Turing" by Charles Petzold (yes, that Charles Petzold) which is a heavily annotated walkthrough of Turing's paper "On computable numbers, with an application to the Entscheidungsproblem"), and for the hardcore Turing fan, "The Essential Turing" by Jack Copeland.


I was also lucky enough to see Derek Jacobi and Jennifer Ehle in the play "Breaking the Code" - here is a scene from the BBC TV version:

http://www.youtube.com/watch?v=gV67Sj2jkVg


My fetish for the Kindle continues... it's a real shame back catalogue items like this aren't available. I find it so hard to buy physical books nowadays beyond large reference books.

I will have to make an exception though, it looks like a great book.


Two thousand years from now we will still remember the greeks that we know today, and then there will be a few extra names, I'm fairly sure that Einstein and Turing will be two of those names.


We'll also find Turing's prosecution as insane as Galileo's. I suppose the overwhelming majority of us already do, but hopefully in the year 4000 even the most conservative of religious folk will consider the "crime" of homosexuality to be as invalid as the "crime" of claiming that the earth revolves around the sun. I'm looking at you Uganda!


It took me a second to realize that was you, John! :-) What an honor to be part of the documentary on Turing.

I hope the filmmakers are able to do him justice. He's such a giant and it would be great if more understood that.


Yes, it is an honour to have been asked to appear. Haven't started real filming yet so I don't know what my final role will be, but I'm hoping (having talked to the writer) that this will be a good film.


The trailer is utterly boring.

No tension, no drama, no rhythm, no appeal to curiosity, no humour, just bored people enunciating facts and opinions in a bland way.

I wouldn't want it to start with a gloomy "In a wuuurld ...", but still, the trailers have evolved to their current format for a reason: they trigger interrest. If you want to bring Turing to the awareness of the masses, you must fight your attention grabbing peers on their field. Don't bring a knife to a gun fight.

I hope that they'll fix it soon, and that film will be less boring than this.


Actually the trailer quite piqued my interest. It made me go "Huh" and want to read Turing's wikipedia page so I wouldn't have to watch the trailer.


Very cool. But somebody's line in the trailer kind of implied he broke the german codes. AFAIK, it was done in Poland just before the invasion. Even the first "bomba" was Polish.

http://en.wikipedia.org/wiki/Cryptanalysis_of_the_Enigma

I'd praise Turing on his last work on self-organizing life. That's still not very well recognized and might be his most important contribution.

http://en.wikipedia.org/wiki/Alan_Turing#Pattern_formation_a...


I would have thought that the theoretical concept of the Universal Turing Machine, the first theoretical model of a true universal stored program computer, would be regarded by most as his most important contribution:

http://en.wikipedia.org/wiki/Universal_Turing_machine


Turing explained with mathematical models how there's life. It was neglected and misunderstood for decades.


Highly recommended BBC Documentary "The Secret Life of Chaos". It starts with Turing's work before he died.

http://www.youtube.com/watch?v=HACkykFlIus


> It starts with Turing's work before he died.

Does it also cover his work after his death?


Sorry, I'm foreign and English is not my native language. I meant:

[The documentary] starts with Turing's work [published just] before he died.


Did he really commit suicide? Or was he 'suicided' by scotland yard because he knew too much?


I think the symbolism of the method chosen, a poisoned apple, shows rather more subtle thinking than is usually shown by state thugs.


There's some scuttlebutt that this is the inspiration behind the Macintosh logo. Most likely apocryphal, but nevertheless amusing and fitting.


You should read the "Laundry" novels by Charlie Stross (hn:cstross) for another explanation...




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