Democracy and Plebiscite

While the United States may, in principle, at least, be "of" and "for" the people, in its actual operations, it is "by" representatives of the people.  For, its governance combines elements of Democracy, Oligarchy, e. g. Legislative branches, and Monarchy, e. g. Executive branches.  Given the infeasibility of a plebiscite process in most of its functions, the admixture of system seems to be a practical necessity, not only in current conditions, but also in a not implausible future expansion of the basic Political unit to a global society.  But, also no longer unimaginable in the ongoing rapid development of digital and nano-technology, is the implantation in each person of a chip that could facilitate a plebiscite in every political event.  Thus, size of a Polity and Technological capacity can be among the determining factors in the concept of a 'best' mode of organization.  Still, a plebiscite does not eliminate a resultant institution of a majority-minority hierarchy, i. e. in which the interests of the latter are subordinated to those of the former, so a pure Democracy, i. e. one in which unanimity rules, remains difficult to conceive.