Why Democrats Could Do Better in November Than Everyone Thinks
By Curtis Gans
It may be that the greatest contribution in Nate
Silver’s young life is not the PECOTA system he developed for evaluating
baseball players and projecting their future contributions, the
accuracy of his 2012 election forecasts or his new ESPN-housed
enterprise, but rather his book The Signal and the Noise.
The book is an elegant, intellectually omnivorous, well-researched
and disciplined assertion of the need for prediction and for
prognostications to be as accurate and useful as possible. He looks at
the egregious failures of predictions - not considering the possibility
of an air attack on Pearl Harbor because of a belief that any Japanese
attack would come via sabotage by U.S. resident Japanese; not seeing
the possibility of an Al Qaeda attack using hijacked airplanes to ram
buildings - failures due to blind spots in imagination. He also notes
that in some fields, notably in predicting major earthquakes,
forecasting has not made major advances because all scientific models
have so far led nowhere.
But his main thesis, grossly oversimplified, is that when predictions
tend to be wrong, it is because those making them do not distinguish
between the signal and the noise - between information, data, events
that are necessary building blocks toward accurate prognostication and
other data, information, events and commentary that may appear relevant
to some but essentially lead one astray. This is a good framework for
looking at the early predictions for the 2014 election.
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