Via Harrison Jacobs, here's a recent study showing the trend in income segregation in American neighborhoods. Forty years ago, 65 percent of us lived in middle-income neighborhoods. Today, that number is only 42 percent. The rest of us live either in rich neighborhoods or in poor neighborhoods.
This is yet another sign of the collapse of the American middle class, and it's a bad omen for the American political system. We increasingly lack a shared culture or shared experiences, and that makes democracy a tough act to pull off. The well-off have less and less interaction with the poor outside of the market economy, and less and less empathy for how they live their lives. For too many of us, the "general welfare" these days is just an academic abstraction, not a lived experience.