John Gallagher thinks there is, and discusses it in his new book Reimagining Detroit: Opportunities for Redefining an American City. In a Detroit Free Press article, Gallagher writes that trying to rebuild Detroit into its former glory by repopulating the city's empty spaces and returning downtown to the shopping area it once was is not the answer. He argues that we must envision a different future for Detroit — perhaps with less people, but room for more community gardens, bike lanes and transit lines.