Monism will demand that enhancement technologies be used to create humans as close as possible to the ideal state. [...] The Nazis would have proposed the list of characteristics for admission to the SS as the universal template for enhancement technologies. Hedonistic utilitarianism is a less objectionable version of monism, according to which the best human life is one that contains as much pleasure and as little suffering as possible – but like Nazism, it leaves no room for meaningful choice about enhancement. (en)