We propose the need to make the experience public and massive, we interpret for this then that there is no more sovereignly public decision than to make a floor, a new path, a path to a place where until then there was no trace. In short, an infrastructure that massively brings the experience to everyone. A large public apartment and a large private deck, or simply a plane in the landscape, an immense blanket that stretches out and proposes a walk of encounters between the top and the bottom. The private program runs under the blanket supporting above the public program that is constituted in the great maritime park of the city. Architecture as a social tool.