Admittedly 538 is a pretty jerky approximation of the state of the arts in analytics, but it seems fair to me to say that there were humans analyzing the race through there own logic were on to Trumps appeal before people looking at the race through analytic lenses were
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interesting footnote from the above linked article:
2. An earlier, longer draft of this post invoked the parable of Bertrand Russell’s inductivist turkey.
https://mashimo.wordpress.com/2013/03/12/bertrand-russells-inductivist-turkey/
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I feel like there is an interesting question being ignored here
whether this is an event that calls into question "Big Data" or "analytics" as a project
whether those things run you into one inductivist turkey after another
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or more accurately, what humans' role will be in the "Big Data" age
obviously that stuff is helpful
but humans might be uniquely positioned to spot the inductivist turkeys before the computers do
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if the singularity worries you
this seems like a wildly reassuring event for humanity