Tonight IaaC welcomed Enric Ruiz Geli lecture “It’s all about particles” within the Spring IaaC Lectures. During the event, Enric Ruiz Geli explained his concept of architecture through some projects that he developed with his office Cloud 9. Buildings like “Villa Nurbs”, “Once…a wave” or the “Hotel Prestige Forest” have a total digital background that allows the architect to conceive and produce the building avoiding traditional constraints. Beside this important fact, Enric understands the environment as particles conformed by different chemical elements (Co2, Ho2…), and face every project trying to unfold an architectonical answer through this idea of particles, that becames not only a visualisation tool but also and specially a production tool.