Excerpt:

Lisa Yaszek, an expert on the history of science fiction, describes the genre’s three categories: SF, sci-fi, and skiffy, which range from the seriousness of Stanley Kubrick to the silliness of Sharknado. “Science fiction is a global language that allows us to communicate the experience of science and technology across centuries, continents, and cultures,” says Yaszek, professor and associate chair in the School of Literature, Media, and Communication at Georgia Tech.  

Watch the video: http://www.futurity.org/science-fiction-skiffy-1324832-2/