Since the visual devices in Suara Welitoff’s photographs and video—subtle shades of gray and muddled focal points—are often employed to signal nostalgia, the artist’s recent exhibition “Sometimes Time Trembles” can all too hastily be reduced to an “elegy” for time passed. And while the dreaminess of Welitoff’s images may inspire a meditation on the elusiveness of duration, we should be wary of pigeonholing them as operating in the register of melancholy. Instead, imbricating incompatible data systems that code, capture, and transmit tenuous sensory experience, her images reveal points