As winter tightens its grasp on our souls, let us take you to a tropical land filled with squawking birds, orange juice and gravel. Forget about snow, the white stuff blanketing this magical world is something all together different. We discuss “Hélio Oiticica: To Organize Delirium”—the first major US retrospective of the artist (organized by the the Carnegie Museum of Art, the Art Institute of Chicago and the Whitney Museum of American Art). We also talk about Fischli & Weiss’ “Schneemann” outdoor sculpture. So there’s some schnow, but just a little bit.