Sci-fi movies and novels have always been a very popular genre of literature because they often discuss topics such as the future, technology, humans, and the universe. These topics have always been very interesting to people. There were several reasons why science fiction movies and novels were popular in recent years: 1. technological progress: with the continuous development of science and technology, people are becoming more and more aware of the impact of science and technology on human life. Science fiction movies and novels often explore the application and possible impact of science and technology, and these topics attract more audiences. 2. Cultural needs: science fiction movies and novels have always been an important part of cultural products. In recent years, with the continuous development and popularity of movies and cultural products, people's aesthetic and cultural needs have become more and more diverse. Science fiction movies and novels have become a more popular genre. 3. creative imagination: science fiction movies and novels are often full of creative imagination and unknown plots. These plots and imagination make people excited and curious, and also attract more audiences. 4. Commercial interests: The investment and production costs of science fiction movies and novels are relatively high, but once they are successful, they can often bring huge commercial returns, which has also prompted more film companies and. In summary, there were many reasons why science fiction movies and novels were popular, including technological advancement, cultural needs, innovative imagination, and commercial interests.