Julio Le Parc (1928) was born in the Province of Mendoza, in Argentina, and graduated in Buenos Aires. In 1955, he participated in the student movement that took over the country’s fine arts schools, and in 1958, Le Parc traveled to Paris on a scholarship. While there, between 1960 and 1968, he became part of the GRAV, Groupe de Recherche d’Art Visuel [Experimental Visual Arts Research Group], which participated in the Nouvelle Tendence [New Tendency] international movement. He later continued his visual research and production within the kinetic art movement. On many occasions, his positions on various issues from the point of view of a Latin American artist were accounted for. Juan Acha was a leading Peruvian theoretician who died in January 1995 in Mexico, where he had been living since 1971. In the early 1960s, he worked as an art critic for the journal El Comercio [The Commerce] in Lima, where he supported the emerging vanguard movements in Peruvian art. In Mexico, he also collaborated with various periodicals, such as Plural and Diorama de la Cultura [The Culture Diorama], in addition to publishing several books that helped divulge his investigations within the academic milieu. This text was written by Le Parc to be sent to Professor Juan Acha after listening to his "La cultura industrial y las artes" lecture (later published in the book: Juan Acha, Ensayos y ponencias latinoamericanistas [Juan Acha, Latin American-ist Essays and Papers], (Galería de Arte Nacional, Caracas, 1984). This document has been selected because it attests to the artist’s point of view when it came to Acha’s position, however in a dialogue with the theoretician’s mode of thinking.