I, apparently unlike many of those posting here, do not see it as a one or the other kind of thing. It is in fact an a call for All Hands On Deck because we are actually progressing to a point where things are more likely to spin out of control - in large part because there are so many conflicting opinions on what exactly is going wrong. Cities in my opinion are more likely to find workable options even if it is because by their sheer number they are more likely to find effective solutions empirically by random chance alone. Hopefully we'll be able to recognize success stories and copy them instead of more simply falling back on all too easy criticism.