Olafur Eliasson likes light. He also likes color. He likes to combine light and color and then sometimes he likes darkness, the absence of light. The first room I walked into at his major MoMA/P.S.1 exhibit has a spinning prism in the middle. It throws colored strips of light onto the white walls, and when people walk around the room they too become colored. They also create black shadows on the walls. It turns out that people like to see themselves in different colors and that they also like to see their own shadows. They delight in it, really. I guess we’ve always known that. But Eliasson confirms the fact. People run around the room giggling and they take pictures constantly with phones, with digital cameras. Down the hall, an oval room changes color while, again, all the… More…