A few months ago I wrote about Blacks fleeing northern cities–now it appears that millennials are doing so as well. The indispensable Joel Kotkin at Newgeography points out that recent census data shows young whites moving out of the cities and into the distant suburbs around the country, bucking predictions that they would abandon the dull suburbs of their youth for the excitement of the inner city. This trend is especially pronounced in large, blue Northern cities such as the decaying rust belt cities of Detroit and Cleveland, but can also be seen in extremely hip New York and San Francisco. Even Boston, the college rich Hub of the Universe, lost 40 percent of its young adult population over the past decade. The utopia of the Blue urbanists may be a bit longer in coming than supporters hoped.