Bill Bishop on The Daily Show tonight frets over people choosing to live with like-minded people or read like-minded sources. Bishop is missing the bigger picture: this "Big Sort" is the product of a wealthier people choosing to live the life they've always wanted to. Past generations didn't like their personal beliefs challenged by their neighbors; they just couldn't afford to move away because of something so small.
It would be nicer if people were interested in challenging values they dare not challenge. But being wrong is a cost they shoulder alone. Unless, of course, they vote: a problem that decreases as the scale of government retreats. Go ahead and be irrational. Just don't make me be irrational with you.