Something to ponder

This, from Richard Florida,, is a "singles' map" of major American cities.  The blue dots represent cities that have more single men than single women--the red, vice versa.

Generally, the west is "blue," the east "red."  Florida himself thinks that it's because there are more "guy jobs" in the west--like construction and IT.  Men will move to jobs, where women won't as much.  Not sure if I buy it, but that's what he said.