Charles Krauthammer confirms the obvious, via Think Progress:
What Fox did is not just create a venue for alternative opinion. It created an alternate reality.
A few years ago, I was on a radio show with a well-known political reporter who lamented the loss of a pristine past in which the whole country could agree on what the facts were, even if they disagreed on how to interpret and act upon them. All that was gone now. The country had become so fractured we couldn’t even agree on what reality was. What she meant was that the day in which the front page of The New York Times was given scriptural authority everywhere was gone, shattered by the rise of Fox News.
Assuming that Krauthammer is on the same alternate reality plane as Fox News, this explains so much.