Despite the gentrification that has taken place in some inner cities, and the plunge in national crime rates to levels not seen in decades, it will be hard to shake the longstanding American association of higher-density living with poverty and personal danger.
Still, if we’re heading for a prolonged era of scarce, expensive oil, Americans will face increasingly strong incentives to start living like Europeans — maybe not today, and maybe not tomorrow, but soon, and for the rest of our lives.