Nicolás Bacal uses everyday materials to evoke systems in his sculptures and installations. He often employs and alters clocks, using them as metaphors for human relationships. Light Years (2008) consists of 12 measuring tapes of different lengths, radiating out elliptically from a central mounting point on the wall. It is a literal reference to the hands on a clock and to progressive durations of time, with the length of each tape increasing as they go clockwise in a circle. The piece is also referencing art historical works such as Marcel Duchamp’s painting Network of Stoppages (1914). But unlike in Duchamp’s work, there are no “stoppages” here; rather, time is presented as a linear flow.