"Overline" is part of a series of works dealing with border and territory. Over the past few years I have examined the gap between the definition of a border and its actual implementation. The work shows 5-15 plummets on one continuous line that are connected and controlled by motors to create interactive traffic. The tension between the plummets creates a vibrating virtual border that raises the question of whether and how reality is distorted based on perspective and point of view. In the installation, each plummet produces its own sound synchronized to its movement. The chaotic state in which the plummets are out of sync is manifested in a sound similar to a meaningless mass discourse. At another point in the work, the vertical movement is synchronized and so is the echo of the sound that expresses a clear statement.