Center for American Progress blogger Matt Yglesias rarely misses an opportunity to point out the value of urban density (sometimes to the point of dogmatism, I might add). But you’re going to see less of that on his blog soon, he notes in an aside today. Why? There might be a book project in the offing.

“The idea is ‘The Rent Is Too Damn High’ and the argument is that regulatory hostility to urban infill, tall buildings, denser suburbs, etc. is creating a much more profound economic problem than people realize,” Yglesias elaborates in an email. “We have a service economy in which square footage that’s near other people is the 21st century version of fertile land, and we’re building a land use paradigm in which it’s artificially scarce.”

A change of pace from his last work, and not a totally undercovered topic, but the genre could always use expanding.