Digital culture does not seem to question the evidence for use of technology in the digitisation of our tasks and of our works. The notions of interactivity, accessibility, ubiquity and connectivity seem to be the most recognised properties. However, its mode of interpretation of the world, based on cybernetics, continues to come up against objectors, particularly metaphysicians. A digital way of thinking and acting thus becomes the object of a divide between two concepts of culture: the sociological and the philosophical. It is appropriate, therefore, to set out the reasons, the limits and presuppositions of this tête-à-tête, and, without claiming to be exhaustive, nor comprehensive to recount the classic concepts which are reworked by digitisation. By the same token, we could outline the approach of a digital identity as creation of possible worlds, requesting new standards for feeling and perceiving.