In 1955, he met Asger Jorn, with whom he co-founded the Experimental Laboratory of the Imaginist Bauhaus in Alba, which was part of the International Movement for an Imaginist Bauhaus, in opposition to the return to productivism by others in the Bauhaus school, in particular Max Bill.
However, he was one of the first to denounce damages from the Green Revolution ("Révolution Verte") and to fight agricultural productivism.