This article aimed to explore the question of chance in psychoanalysis, taking into account Freud’s use of this notion in his work. Although only the word Tyché appears in his texts to designate chance, the possibility of another acceptation of chance derived from the notion of Aion is intertained. This concept of chance may first be understood as something accidental (Tyché) at the root of how the psychic apparatus works, and consequently leads to the idea of Aion, when the question of something that lies beyond the psychic apparatus is raised.
Chance; psychic determination; drive intensity