Sure, but that's not what was said above: "The cities we live in are hundreds, if not thousands of years old. The idea of that a 15 minute city has any bearing

Sure, but that's not what was said above: "The cities we live in are hundreds, if not thousands of years old. The idea of that a 15 minute city has any bearing on real life is sadly laughable." The two sentences don't make sense together. Those old cities were "15 minute" cities by necessity - easy long distance travel wasn't a thing until the industrial revolution. We've since redesigned many of them for car use, and in some cases realized the mistake and redesigned them again (Amsterdam, for example).