Within this double city, the available energy of people must not be seen as tampering with the market. His ideas have met with much positive response elsewhere in Europe, especially in Germany and Switzerland, in recent decades.
Le Roy, sans aucune aide extérieure, a bâti de ses mains toutes sortes de constructions, murs, sentiers, mais aussi des tours qui, par leur construction astucieuse, font fonction d'installations de purification pour les pluies acides.