What is Sci-Fi?

What is science fiction? There are many different books, films, games and other media that can fall into the genre of sci-fi. There are many different definitions, many different sub-genres, and many different elements that can make something “sci-fi.” It wouldn’t be possible to come up with one definition that all Science Fiction writers and creators would agree upon. Having said that, we can examine some common themes and elements.


Science Fiction is a genre which can fit under the umbrella of Speculative Fiction, alongside, and often overlapping with, Fantasy and Horror. Science Fiction tends to be futuristic, imagining advances in technology and scientific achievement beyond our current levels. Robots, cyborgs and technologically modified humans are common in SF. Sci-fi often includes elements such as space travel, aliens, life on other planets or in other galaxies. However, sci-fi can also stay here on earth, exploring such things as utopia, dystopia, alternative histories, and post-apocalyptic scenarios. There can be an emphasis on science, with stories set in very realistic situations based on real scientific research, but can also extend into levels of conjecture that may try to extrapolate or predict where we are headed with science. In fact, SF can stray from hard science, abandoning realism altogether as it explores the paranormal and the fantastic.