Disclosure: I am a Nate Silver fan. Nate's expert opinion is only valuable if you accept the premise, which is that prediction science involves a range of possible outcomes. If you accept that premise, which I do, his opinion on the 2016 election, in which he stated several times that the odds of a Trump presidency were actually higher than most of the polls suggested, was arguably a more valuable opinion than either a coin toss, or most of the individual polls.