It's a long way—and almost 100 years—from Carrère & Hastings' inspiring reading room at the New York Public Library (right) to Safdie's "Urban Room" in Salt Lake City. Ross Dawson, a business consultant who tracks different customs, devices, and institutions on what he calls an Extinction Timeline, predicts that libraries will disappear in 2019. He's probably right as far as the function of the library as a civic monument, or as a public repository for books, is concerned. On the other hand, in its mutating role as urban hangout, meeting place, and arbiter of information, the public library seems far from spent. This has less to do with the digital world—or the digital word—than with the age-old need for human contact.