Ya, that's 90% of the country. If anything, California is one of the biggest current densifiers, as the major metros have hit the natural borders and need to d

Ya, that's 90% of the country. If anything, California is one of the biggest current densifiers, as the major metros have hit the natural borders and need to densify to accomodate new people. Lots of multistory and transit going up; not enough, but more than most places.