When I was a resident artist at PS1, New York between 2003 and 2004, I made a series of artworks about measurement. One Liter Walking was one of them. I fully emptied my bladder at the intersection of 96th Street and Riverside Drive. At the same location, I drank one liter water, walking toward downtown New York along West End Avenue and Eleventh Avenue until I had to urinate again. When I reached West 45th Street, which was close to the Intrepid Sea, Air & Space Museum, my bladder could not hold it any longer, so I walked toward a donut truck to get the liquid out of my body. The physical limitation of the performance marks the starting point and the end of the measurement. Through one liter water, I measure the metabolism inside my body as well as the distance my body has moved in the city. The liquid circulated in the body and the movement within a space (the city) creates an intertextual implication. Therefore, the distance I have walked in New York on that Sunday can be defined as “the distance of one liter water running through my body.”