Here's why:
* Scientific Concept: The novel centers around a scientific breakthrough (invisibility) that leads to unexpected consequences.
* Speculative Fiction: It explores the potential ramifications of a scientific advancement and its impact on society.
* Social Commentary: While grounded in science, "The Invisible Man" also tackles themes of social isolation, the dangers of unchecked ambition, and the potential for scientific progress to be misused.
While some argue that the novel also touches on aspects of horror, fantasy, and even gothic fiction, its core foundation lies firmly within the science fiction genre.