Great Lakes industrial cities such as Pittsburgh and Cleveland have had the “benefit” of going to hell in an earlier era. Detroit is in a much deeper hole: $18 to $20 billion. But Detroit does have an auto industry that is roaring again, which should limit further erosion, and its relatively dense sq. mi. downtown is already in rebuilding mode. It has low-cost real estate and— once the bankruptcy winds it way through the courts— investors will have some clarity about future costs of doing business. There is a roadmap for the Motor City—if it can find a way to fund the trip.