The Theory That Would Not Die -
Posted by
Tom Johnson on
URL: http://friam.383.s1.nabble.com/The-Theory-That-Would-Not-Die-tp6662528.html
A review of a new book that may be of interest.
--tom johnson
The Mathematics of Changing Your Mind
By JOHN ALLEN PAULOS
Published: August 5, 2011
Sharon Bertsch McGrayne introduces Bayes’s theorem in her new book with a remark by John Maynard Keynes: “When the facts change, I change my opinion. What do you do, sir?”
Bayes’s theorem, named after the 18th-century Presbyterian minister Thomas Bayes, addresses this selfsame essential task: How should we modify our beliefs in the light of additional information? Do we cling to old assumptions long after they’ve become untenable, or abandon them too readily at the first whisper of doubt? Bayesian reasoning promises to bring our views gradually into line with reality and so has become an invaluable tool for scientists of all sorts and, indeed, for anyone who wants, putting it grandiloquently, to sync up with the universe. If you are not thinking like a Bayesian, perhaps you should be.
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