In 2045, human beings will achieve immortality through a mixture of genetics and various kinds of technology — so says inventor Ray Kurzweil, a leader of the transhumanist movement. The Boston Globe's Mark Baard reports that most transhumanists, excited by recent advances in technology, say that the moment of immortality — the "singularity" — is almost upon us. "All that most of us need to do, transhumanists say, is wait," Baard reports.