The earliest science fiction mainly relied on new inventions, or reached a new place. At that time, it was enough for readers to read these. They can stand and stare at the flying city, or marvel at the power of this special weapon. The novel is mainly descriptive, and the protagonist who is unfamiliar with the environment tells the reader or listens to a lecture in the name of the reader.

Almost all stories end in cosmic peace, or an invention and inventor are destroyed. The reason why the ending is arranged like this is because the screenwriter can't go beyond the limitations of the times, so he can only use a technique similar to "waking up from a dream is a dream", perhaps to avoid the feeling of ending. To this end, he believes that "the core of surprise makes science fiction grow."