U.S. economist Lyndon H. LaRouche, Jr., in his concise "defense of common sense," has written that "this occasion appears to be our last opportunity to save it." Using the methods of Platonic dialogue, and constructive geometry, LaRouche describes how each individual can use his common sense and "value of self," to ensure the survival of the whole of society. In economic terms, this means reversing the past 20 years' trend toward Malthusian post-industrial society, with its

"environmentalism" and "consumerism," all derived from the Newtonian principle of "universal entropy."

Those who use their "common sense," LaRouche writes, will help to achieve continuous scientific and technological progress, that will in turn ensure such ever-higher values of potential population-density, as President Kennedy's early 1960s' aerospace crash program did. This example of universal negentropy, LaRouche explains, is based upon Cardinal Nicolaus of Cusa's Maximum Minimum principle, as well as the work of such common-sense thinkers as Leonardo da Vinci, Kepler, Leibniz, Gauss, and Riemann.