* Her own fears: Roth has stated that she drew inspiration from her own personal fears and anxieties when creating the simulations in the Divergent world. She wanted to explore the ways in which fears can shape our personalities and choices.
* The human condition: Roth was interested in exploring the themes of identity, conformity, and rebellion, which are all central to the human experience. She wanted to create a world where people are forced to confront their deepest fears and make choices that shape their destinies.
* Classic literature: Roth has cited authors like George Orwell and Aldous Huxley as influences on her work. She was inspired by their dystopian novels and their exploration of social control and the dangers of conformity.
* Her own life: Roth has also mentioned that her experiences growing up in a diverse community in Chicago influenced her ideas about the importance of individuality and acceptance.
While these are the main sources of inspiration, Roth has also mentioned other influences, like movies, TV shows, and her own imagination. Ultimately, Divergent is a product of Roth's unique perspective and her ability to blend different sources of inspiration into a compelling and thought-provoking story.