Finite line is a sound sculpture, a sculpture in the form of magnetic tape on which an audio track is recorded. There is a geometric formula for calculating the distance between the observer and the horizon he observes; knowing the height of the eyes of the observer in relation to the ground, it is possible to calculate the distance between him and the horizon:

For an observer standing on the ground with h = 1.70 m (average eye level), the horizon is at a distance of 4.7 km.

The sculpture consists of a reel of magnetic tape for audio recordings, whose length corresponds to the distance between the observer and his horizon. The observation point of the portrayed person, Gianluigi, is 168 cm in height so we have a reel of 4,630 meters; this reel is available to the observer to record his story. Considering an average recording speed, Gianluigi had a time of approximately 6 hours 46 minutes and 8 seconds of audio recording. The reels on the market reach a maximum length of 1,100 meters, therefore for the sculpture a customized reel has been created and the recording and listening system has been modified.