Wu Shanzhuan and Inga Svala Thorsdottir’s latest exhibition at Long March Space was the couple’s most abstract yet; even the meaning of its title, “Kuo Xuan,” is ambiguous. Ostensibly the romanization of a two-character Chinese word (though the artists have declined to specify which two characters), the term is evocative—in Mandarin, it sounds something like “expanding choices”—but its meaning is unfixed.

The gallery’s two main halls were given over to seven symbols mapped onto the walls in thin lines of various colors that towered over the viewer, mostly of cochlear spirals ricocheting