Διάλογος is a sound sculpture wherein birch bark pattern turns into sound. Four operators are arguing about the received information. Each of them consists of an infrared sensor, a piece of program code and a speaker, generating squarewave signal. Оbserving the same log, operators receive different information from which a dispute is born. Оn the one hand, this dispute is about nothing, as we can observe the whole log. On the other hand, its own language, its own rules, its own culture are born around the log.