Fiction, usually understood as a literary term, touches on long-standing philosophical questions. Is fiction merely a false simulacrum, as Plato argued, because it only imitates the appearance of reality? Or is fiction, as Aristotle argued, truer than empirical reality because it is a rational representation of reality? In Les Bords de la fiction (2017), the contemporary French philosopher Jacques Rancière questions this “partage” between fiction as non-reality, which is inferior to reality, and fiction as super-rationality, which is superior to reality; between fiction as falsehood against truth, and fiction as truthful falsehood. From Aristotle’s Poetics, he extracts “fictional rationality,” the condition that makes fiction identifiable as fiction, and identifies its components as causal temporality, probability, and counterturn. According to him, fictional rationality is still at work in literature and the social sciences today. However, some modern literary works create a new poetics/politics of fiction by introducing depictions of “quelconque (mundane)” beings and “quelconque (random)” moments that have remained at the “edges” of classical fictional rationality. This paper will propose a possible reading of Les Bords de la fiction through the interplay of one axis of analysis of fictional rationality and another axis of the exploration of the edges of fiction.