Interesting comment by Witold Rybyczynski:
There are only six American downtown districts that are dense enough to support mass transit, which you need if you’re going to be carless: New York City (Midtown and Downtown), Chicago, Philadelphia, Boston and San Francisco.Interesting that those are the exact cities (minus Philadelphia, plus Montreal and Toronto) that formed my idea of what a city is. All mass transit towns. Everything else still seems exceptional and sub-urban in the sense where "sub" means "worse than".
And there's a featured reader comment: