Populism and Latin America, especially Argentina, are very good friends. Since the Great Depression, a shock from which the country has been unable to recover, Argentina is a classic example of Populism. Her economic decline for the last eighty years attests in this sense. As Populism is a hybrid of interventionist policies that go away and come again according to circumstances, in the long run, this non-system is possibly more harmful than Socialism. Public opinion becomes too baffled to find Populism guilty of economic failure. My question is this: How do we set a limit to Populist economic policies? International experience suggests that denationalization of key economic fields may prove a durable limit to Populism. In the following paragraphs, I will discuss a) the origins and consequences of Argentine Populism, b) a program for denationalization, c) the ideas of an Argentine forerunner of denationalization, d) denationalization as an experiment in human design, e) the need of non-reversible policies or the economic logic of denationalization, and f) the role of education in moving from Populism to a long-lasting market order. I will conclude, in the final paragraph, that the role of education as a change factor is unclear.