This paper addresses a reflection on the cultural transformation caused by the advent of digital materials in the daily interaction of human beings and their impact on the construction of imaginaries. To do this, an approach to the notions of culture is sought from the conditions of material interaction and the generation of semiospheres, as well as the implications of the insertion of digital materiality into this dynamic. On the other hand, approaches are made to the consequences produced in the collective imaginaries of Medellín, Colombia, in terms of the transformation it has undergone over the past two decades, in the clear context of the advent of digital media and the consequent transformation they produce in collective narratives.