Public housing projects in the U.S. often get blamed for concentrating poverty, but I think the real policy failure is ignoring mixed-income development for decades. When Chicago demolished Cabrini-Green, residents were scattered with vouchers, and many ended up in neighborhoods just as poor. Why do we keep treating housing as a standalone issue instead of linking it to jobs, transit, and schools? The evidence is shaky, but I believe zoning reforms that mandate mixed-income units could actually work—if we fund them properly.