The article aims to interpret the phenomenon of media rationality as a rationality of the modern era. On doing this, the author pursues the objectives to elucidate the origins, vectors of development, and the principles of those forms of sensuality, categories of thinking, and ethical imperatives that are set by the digital environment. Methodologically, these objectives are ensured by the implicit hermeneutics of the phenomenon, i.e. its consideration from the inside, from the media rationality’s intrinsic conceptual, expressive, performative resource. The word “rationality” belongs to the Latin language and is etymologically ramified; however, due to the philosophical orientation of the Modern period, its field of values was added with “account” as “calculation” and “forecast”, while the pre-Latin tradition deemed the “account” in another way. Particularly, Plato distinguished between “market calculation” and “initial count” understanding the latter as fundamental modes of openness to the world. Myths, ritu