SF has 1/4 of the population density of Manhattan, the city it is often compared to, and about 1/6 of the densest city in the world (Manila in the Philippines).

SF has 1/4 of the population density of Manhattan, the city it is often compared to, and about 1/6 of the densest city in the world (Manila in the Philippines). I wonder where all those extra people are being put if SF has capped out?