Above all don't use the word good as though it meant something in evolutionary science. The Hard Problem is a tour de force, exploring fundamental questions of how we experience the world, as well as telling the moving story of a young woman whose struggle for understanding her own life and the lives of others leads her to question the deeply held beliefs of those around her. Hilary, a young psychology researcher at the Krohl Institute for Brain Science, is nursing a private sorrow and a troubling question. She and other researchers at the institute are grappling with what science calls the "hard problem"--if there is nothing but matter, what is consciousness? What Hilary discovers puts her fundamentally at odds with her colleagues, who include her first mentor and one-time lover, Spike; her boss, Leo; and the billionaire founder of the institute, Jerry. Hilary needs a miracle, and she is prepared to pray for one.