THIS ISN’T THE 21st CENTURY I WAS ONCE PROMISED: Necessity in a progressive-run city? Vox’s Matt Yglesias maps out San Francisco sidewalk obstacles: “A comprehensive map of human poop on San Francisco sidewalks.”

But then, as even the San Francisco Chronicle was recently forced to admit, “People come here thinking of this as the center of innovation and entrepreneurship, and they see a street scene that looks like something out of a Third World country.”