Unlike many of those other city-ranking, hit-seeking Internet lists (which have cumulatively described Denver as "the manliest, drunkest city"), last November's accolade from the Brookings Institution had some real science behind it. Demographer William Frey, a senior fellow with the Metropolitan Policy Program, parsed the numbers from the U.S. Census Bureau's American Community Survey and determined that from 2008 through 2010, even as the hopes for a quick comeback from the recession faded, young adults between the ages of 25 and 34 were high on Denver...and proved it by coming here in record numbers. Although Denver ranked a mediocre twelfth in Frey's last survey, which covered 2005 through 2007, since then it had pulled ahead of such previous hotspots as Phoenix and Atlanta, adding a chart-topping 10,429 new, young residents, to rank as the country's top cool city. "What we see from the migration data," Frey said, is that "Colorado and Denver are probably a part of the country that will survive and possibly prosper when the economy comes back." Cool!