31 See, for example, Richard Hall’s “Cosmetic Nanosurgery” and the fantasy of a seamless nanotech environment in J. Storrs Hall’s “Utility Fog: The Stuff That Dreams Are Made Of,” both in Nanotechnology: Molecular Speculations on Global Abundance , ed. B.C. Crandall (Cambridge, MA and London: MIT Press, 1996), 61-80 and 161-184.