In Torino’s tallest skyscraper, the Intesa Sanpaolo byRenzo Piano, architects Migliore et Servetto  created a beautiful light installation, called « A-Chromactive », as part of the Luci D’Artista 2017. This light sculpture, based on the Alpha symbol,  and the repetition of this age-old character, which is charged with many positive elements and refers back to the origin of everything, generates a spiral movement shifting from the interior to the exterior of the skyscraper.  Thanks to an innovative technology, 100 light scales act like frames in a stop-motion to create an iridescent vortex, which is brought to life and made to shimmer by the brightness emanated by the object itself, in dialogue with the constantly reflected natural light. Stunningly inspiring.