A June 9th article by Aaron Renn (Senior Fellow at the Manhattan Institute for Policy Research) suggests, "There’s a lot of urban triumphalism these days as cities crow about millennials wanting to live downtown and such." But the dirty little secret is that a lot of these places have been growing their millennial populations by vacuuming up millennials from the rest of the state. According to Renn, Indianapolis is a poster-child for this. 95% of the Indy metro area’s net migration has come from elsewhere in the state. At some point there are going to be a lot fewer millennials to move to the big city. CollegeAvenueIndy.org wonders if this has been factored into IndyGo's wildly optimistic Red Line ridership projections.