Jonathan Glover accepts the scheme at Robert Nozick's valuation and notes no danger but anarchy. He gives the impression that the changes he expects from a moderate form of this scheme would be merely of the same order as those produced by new information technology or forms of transport. Glover quotes H. J. Muller's prophecies with suitable contempt, commenting that 'the case for genetic engineering is not helped by adopting the tones of a mad scientist in a horror film.' His declared aim is not to transform the human race according to a blueprint but to increase its freedom by allowing it certain valuable kinds of development which would otherwise be closed to it. Glover's is the exact opposite, and the difference is crucial. The guiding aim which Glover sets up is increased variety to enrich human freedom, rather in the spirit of Nozick and of John Stuart Mill's Essay on Liberty.