Writers like Aldous Huxley and George Orwell have imagined the sort of scientific utopia which is coming to pass, but already their nightmare fancies are hopelessly out of date. A vast, air-conditioned, neon-lighted, glass-and-chromium broiler-house begins to take shape, in which geneticists select the best stocks to fertilise, and watch over the developing embryo to ensure that all possibilities of error and distortion are eliminated.