Sure, you could easily upzone and fit 4 to 5 times as many people into the city.<p>Not so easy to upgrade the infrastructure (transit and otherwise) to handle 4-5 times as many people living in (and traveling out of and back into) the city, OTOH.<p>And if you do that, best case, you&#x27;ve got 4-5 times as many people living in the city, at similar costs, in smaller living spaces. Where&#x27;s the gain?