Waltércio Caldas Júnior: Architect of Absence Waltércio Caldas Júnior (born November 6, 1946), a name synonymous with Brazilian neo-concretism, is an artist whose work defies easy categorization. More than simply creating sculptures, he crafts experiences—moments of perceptual disruption that challenge our assumptions about space, presence, and the very nature of seeing. Born in Rio de Janeiro, his artistic journey was profoundly shap…