Louis Rosen and his partners sell people--ingeniously designed, historically authentic simulacra of personages such as Edwin M. Stanton and Abraham Lincoln. The problem is that the only prospective buyer is a rapacious billionaire whose plans for the simulacra could land Louis in jail. Then there's the added complication that someone--or something--like Abraham Lincoln may not want to be sold. Is an electronic Lincoln any less alive than his creators? Is a machine that cares and suffers inferior to the woman Louis loves--a borderline psychopath who does neither? With irresistible momentum, intelligence, and wit, Philip K. Dick creates an arresting techno-thriller that suggests a marriage of "Bladerunner" and "Barbarians at the Gate,"