not utilize time travel as a hypothesis. It is Suvin's opinion that some of the most commercially successful works of SF have only used this idea of framing a hypothesis as an ornament. In other words, Suvin believes that the most popular mainstream SF works, like Star Wars, are not truly SF at heart—they simply utilize the genre as a way to take advantage of the special effects and uniqueness that go along with the genre. Cognitive estrangement In Suvin's opinion, the focus of the genre lies in encouraging new ways of thinking about human society, or to inspire those who are oppressed to resist. Suvin has labeled this idea of subversive thinking as cognitive estrangement. Those works of SF that could be characterized as using cognitive estrangement rely on no one particular hypothesis, but instead on the cognitive presentation of alternative realities that directly contradict the status quo. Bibliography Works Dva vida dramaturgije: eseji o teatarskoj viziji (Zagreb 1964) — "Two aspects of dramaturgy: essays on theatrical vision", in Croatian Od Lukijana do Lunjika (Zagreb 1965) — "From Lucian to Lunik", in Croatian, anthology and theory of science fiction. Major parts of this book and other early essays, published in the 1960s in Croatian, were later reworked for Metamorphoses of Science Fiction. Other Worlds, Other Seas: Science Fiction Stories From Socialist Countries, selected and edited with Preface and notes, New York: Random House, 1970; New York - Berkeley, 1972; German edition 1972 and 1975; French 1973; Dutch 1976; Japanese 1976, Spanish 1981) Uvod u Brechta (Zagreb 1970) — "Introduction into Brecht", in Croatian Russian Science Fiction, 1956–1970: A Bibliography (1971) and later editions Science-Fiction Studies: Selected Articles on Science Fiction, 1973–1975 (1976) — editor with R. D. Mullen Dramatika Iva Vojnovića: geneza i struktura (Dubrovnik, Vol. 20, 1977, issue 5-6) — "Ivo Vojnovic's Dramatics: Genesis and Structure", the whole issue of the magazine printed Suvin's PhD from University of Zagreb; often wrongly cited as the book H. G. Wells and Modern Science Fiction (1977) — edited by Darko Suvin, with Robert M. Philmus Science-Fiction Studies: Selected Articles on Science Fiction, 1976–1977 (1978) — editor with R. D. Mullen Metamorphoses of Science Fiction: On the Poetics and History of a Literary Genre (Yale University Press, 1979) (also French version 1977; German 1979; Spanish 1984 and 1987; Italian 1985; Japanese 1991; Croatian 2010; Chinese 2011). Victorian Science Fiction in the UK: