a nuclear explosion
...until our own time America's upper crust was a mixture of people who had gained prominence in a variety of ways, who drew their money and status from different sources and were not predictably of one mind on any given matter. The Boston Brahmins, the New York financiers, the land barons of California, Texas, and Florida, the industrialists of Pittsburgh, the Southern aristocracy, and the hardscrabble politicians who made it big in Chicago or Memphis had little contact with one another... All that has changed. Today's ruling class, from Boston to San Diego, was formed by an educational system that exposed them to the same ideas and gave them remarkably uniform guidance, as well as tastes and habits... whether formally in government, out of it, or halfway, America's ruling class speaks the language and has the tastes, habits, and tools of bureaucrats.
Regular triangulations are a class in-between lifting and lexicographic triangulations. Their main draw-back in the context of this paper is that regularity depends on the specific realization and not only on the oriented matroid.
When Hollingsworth and Priscilla retreat to a cottage at the end of the novel, they are spurning not only reformatories and phalansteries but also boarding-houses, tenements, and hotels.
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