“Literary dystopias have this in common: They are imagined societies in which the deepest demands of human nature are either subverted, perverted, or simply made unattainable. Not that it is necessarily bad to say “no!” to human nature. When it comes to certain inclinations, such as violence or extreme selfishness, there is much to be said for defying the promptings of biology. But when society presses too hard in ways that go counter to natural needs, the result can be painfully unnatural, which is to say, dystopian.”