For Spatial-Temporal, 2025, sp/n constructs a live image system between two floors, where the present is continuously layered with its own delay. A camera placed on the ceiling of the first floor looks upward, while a screen set into the floor of the second floor receives the image from below, combining the live feed with traces from 1.5 and 3 minutes earlier. Presence, traces, and absence appear together in the same frame, allowing movement to remain visible even after the body has passed. The work treats space and time as materials of architecture, connecting two separated floors through looking, waiting, and delayed memory. In this quiet overlap, time looks up from below, while space looks down from above.