This article examines how the relationship between fictionality and referentiality has evolved since the beginning of the 1990s, from a double perspective which combines two disciplines that rarely cross paths: namely, historiography and the theory of literary genres. The choice to accept certain narrative techniques as inherently factual is, indeed, not neutral, since the discursive distinction between “truth” and “lies” or “fabrications” is often conceptualized within the larger theoretical frame of literary genres. I will demonstrate that this distinction no longer tends to be conceptualized following a binary model, but that it is rather thought of as “analogical”. The analogical model allows a better understanding of the hybridity of interpretative practices resulting from the frequent use of social media platforms, whose discourses frequently escape current generic classifications.