I'm not sure about either the skepticism or the enthusiasm: we have, throughout history, built cities according to the "modern" standard. From the greek squares

I'm not sure about either the skepticism or the enthusiasm: we have, throughout history, built cities according to the "modern" standard. From the greek squares, to medieval towns with only space for a small handcart, to the car-centric cities in the US. And as we go, we improve them based on our knowledge: will we get it "right" this time? Of course not! But that's not the purpose of these projects. Can we try, see what comes out, and adjust as necessary? Putting all these posts beforehand sounds to me like waterfall development, where cities are naturally built in an "agile" way. See Rome, for example :)