It’s challenging and illuminating to think hard about the future. A competition was just completed to design three cities as they might be in 2018 (Washington, DC, San Francisco, and Atlanta). I especially like DC with the Mall made into an even longer reflecting pool, and streets turned into parks. But in some regards I don’t think the city scenarios go far enough. Cars look like cars. No sign of adaptation to climate change. Todays’ houses (below) are still standing.
UPDATE: Another good article from BLDGBLOG on the competition.