(has the irony ever occurred to anyone that people complain about not being able to afford SF, NYC, etc, but at the same time those places are filled with poor

(has the irony ever occurred to anyone that people complain about not being able to afford SF, NYC, etc, but at the same time those places are filled with poor people living in project housing?) I can't find it now, but I know Megan McArdle has written about how there is a bathtub-shaped curve (my word) for income distribution in many parts of NYC. You can be poor, and you will do okay. You can be really rich, and you will go well. But in the middle it becomes a desert.