White Collars and Grey Morals NEXT By Michael Crichton. HarperCollins, 431 pp. $27.95 hardcover I have decided that Michael Crichton is an ironist. Only someone steeped in satire could write a novel like Next–a passionate defense of the humanity of man–and people it entirely with cardboard humans. In fact, the most engaging characters in Next aren’t even fully human–Davy the Half-Chimpanzee and Gerard the Half-Parrot have more life in them than any of the awkwardly posed figurines that pass for characters in this novel. I’m not even sure you can call this a novel. A novel usually involves a plot. With characters. I…