The "unreliable" memory of the novel's granny could have the following effects on character creation and theme expression: Character Creation: 1. Increase the complexity of the character: Through the "unreliable" memory of Granny, the reader can have a deeper understanding of Granny's personality and psychology, making her more complicated and three-dimensional, laying the foundation for the subsequent storyline. 2. Prominent character characteristics: The "unreliable" feature of Grandma's memory can make readers more aware of the defects and uncertainties of her memory ability, thus emphasizing her personality and making her a distinctive character in the novel. 3. Drive the development of the story: Grandma's "unreliable" memory can be used as a part of the story to provide support and clues for the development of the novel, making the story more compact and interesting. To express the subject: 1. Challenge the reader's perception: By writing about Grandma's "unreliable" memory, it can challenge the reader's perception of memory and memory ability, and make the reader think more deeply about the nature and function of memory. 2. Express the author's point of view: The author's "unreliable" memory can express the author's point of view and position, allowing the reader to better understand the author's writing intentions and depth of thought. 3. Revealing the nature of human nature: Through writing about the "unreliable" memories of Granny, the nature and weaknesses of human nature can be revealed, allowing readers to more deeply understand the complexity and variety of human nature.