Jesus christ, that fraud Nate Silver sure loves to hear himself talk, doesn't he? (Has he apologized for blowing his UK election prediction yet, by the way? Probably blamed it all on the polls, as is his usual escape route when his predictions are wrong.) Only someone as self-absorbed as he would need to spend 30 paragraphs and five charts and graphs explaining such a simple and straightforward point.
There's no need to talk about the electoral college until October 2016 or so, because there's no need to talk about the electoral college unless the popular vote is a tie. The popular vote being a tie is historically rare, but by October 2016 we will be close enough to the election to know whether or not the state by state math matters. Like King said, what's much, much more important are the national vote fundamentals: demographics, the strength of the economy, favorability ratings, etc.