I've been a long time fan of your work Pete and I think this is the first time I'm commenting on your blog! Certainly construction, or should we both say retrofitting Detroit and a number of cities with housing stock and general infrastructure that is rapidly decaying and not as energy efficient as it should (and needs to) be can be a economic positive. That could mean powering the city and region with renewables, finding modern ways to deal with waste and pollution and so on. But as with the talk that many Rust Belt cities have around \”attracting immigrants\”, I start getting skeptical. I'm not saying these cities couldn't use the fresh blood, but usually it is also a quiet shrug to actually doing the work to develop long-time residents in these cities, which all too often means ignoring the despite cries of black citizens to City Hall for resources in their neighborhoods. At the end of the day, immigrants want many of the same things these regions have failed to deliver to black residents for generations now such as quality education, productive relations with law enforcement, economic empowerment, community engagement, etc.