Paris is currently reviewing its ambitions of “greatness”. However, within a country where speed is not necessarily a condition of efficiency, and where “quality of life” is elevated to “the art of living”, a purely geographic and territorial expansion based upon the American model is unfeasible.At the outset, we imagined the tower from an initial volume, which we considered a “spatial texture”, consisting of slabs stacked vertically to a height of 200 meters. Within this solid and uniform texture, we applied a dynamic formation process utilizing an empty tube of manifold geometry. In motion, this cavity becomes a generator of space, a dynamic, fluctuating, and evolving construct. Its topology will help us delineate such properties as proximity, contiguity, continuity.More concretely, we are able to liken the tower to the diversity of the city: the uniform fabric of Parisian homes, the rapid transportation network, the squares, the parks, the avenues, the public meeting places of Parisians known and renowned.All the richness of the city is transposed vertically into towers of shifting density!