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Xanadu allows people to work together more productively in ways that existing electronic mail , databases , and online services only hint at . We stare at the wall together . Many whites stare at the African Americans . I guess at that time it was just a part of life , that once you had sort of chosen where you were going to be - - my son remarked one time , and I guess this was true . Some of us could do nothing but stare at our feet and feel for leeches . People stare at you when walk in the office . The Method in this : In an Acre of Ground you bury at six Inches Distance , and eight deep , a Quantity of Acorns , Dates , Chestnuts , and other Maste or Vegetables whereof these Animals are fondest ; then you drive six Hundred or more of them into the Field , where in a few Days they will root up the whole Ground in search of their Food , and make it fit for sowing , at the same time manuring it with their Dung . Both contradictions hint at a necessary balance between the extremes . To complicate matters , nanotech watchers distinguish at least four , and maybe five , different generations of nano , from passive materials to highly advanced molecular nanosystems and atomically-precise manufacturing via productive nanosystems . Nevertheless , these projects merely hint at the range and scope of what needs to be done to accumulate the comprehensive data necessary if the nation is to realize the potential contribution of the humanities and the arts in the information age . I stare at the wall directly ahead .