[Texte disponible uniquement en anglais] This video is a short experience that came out as result from an initial study of light done in the development of a photographic work.Its a loop of a 1:22 min video where a horizontal line defined by a blur of a person running constantly, that mirrors the concept of insanity, rythim and dynamics characterictic of the light dinamic itself and all its aesthetic discussion.Its an installation, so it depends on the place to install, but it lives of a very simple loop video projection in wall (or projection on TV).