This article examines the novel Hombre-tiempo (1973) by Argentine writer Fina Warschaver, focusing on the intersections of science fiction and political utopia. To this end, a theoretical-critical approach is established to demonstrate how science fiction enters academic studies, emphasizing the marginalization of women's writing in this literary field. Drawing on Frederic Jameson's concept of binary oppositions in the formal representation of utopia, this article addresses the construction of a socialist utopia that does not propose a perfect future but highlights the failure of revolutionary promises. The guiding hypothesis suggests that Warschaver, as a dissenting writer, incorporates an existentialist approach capable of integrating individuality with collective will. From this perspective, her literature also advocates for women's rights within the context of a social revolution that remains structured under patriarchal principles.