Video has been his central medium since the mid 70s. Over the past 40 years, Plessi has produced more than 120 video sculptures and expansive video installations with wa- ter, combining natural materials such as wood, earth, and iron with the latest technology to create tension in the combinations that are characteristic of his works.
The video installation Under Water is impressive with its minimalistic production. Large screens display glowing fragments of a splendid gold and black Byzantine oor mosaic that move in wavelike motion and are accompanied by a sound composition arranged by the Bri- tish composer Michael Nyman. The mosaic is the symbol of the East and references the history of the Fondaco dei Tedeschi which was the central trading place between Western Europe and the Eastern Medi- terranean in the Middle Ages. Under water, the mosaic fragments are constantly changing and shifting under the movements of the o- wing natural element, which for Plessi is a symbol of temporality and a metaphor for memory. The past, time, and the awareness of history are poetically brought to light in a constantly changing world. The connections between the mosaic, water and music in a room, crea- te a total composition and an extraordinary sensory experience that sends the viewer on journeys through space and time. The simple, geometric layout of the exhibition space underscores the clear langu- age of the video installation, which in its reduced form is reminiscent of Minimal Art and Arte Povera.