How's this for a weekend conference: Some of the smartest people in the world are gathering in New York to try to figure out how to build lifelike copies of humans ... to be eventually uploaded with the contents of a real human brain. It's the brainchild of a Russian multimillionaire, Dmitry Itskov. ... And he says he's perfectly serious, and that it could be accomplished by 2035. Crazy? The New York Times gave Itskov a front-page profile on its Sunday Business page a week and a half ago. Imagine this ... a digital copy of your brain in a...