That&#x27;s a city designed for <i>ONLY</i> bikes, and no city will ever be designed like that, no cars allowed is nice in theory but not workable. To be practical it would at a minimum have to accommodate foot-traffic, supply lines to stores (or did you think that those stores will be supplied by cargo bikes?) and access for disabled people (not everybody can ride a bike).<p>So it&#x27;s a nice thought experiment but not at all practical, on top of that &#x27;bike lanes in apartment building hallways&#x27; make you wonder just how much experience the designer has riding bicycles, you park your bike at the interface between inside and outside and you don&#x27;t run around the apartment hallways on a bicycle because of (1) pedestrians, (2) playing kids, (3) the fact that you now have to elevate your bicycle every time you want to go in or out of your house and (4) storing your bike at streetlevel is simply much more practical.