OiYan Poon wrote her book for several reasons, as discussed in the podcast. One key motivator was her desire to express thoughts and stories that she couldn't easily convey through academic papers. She mentioned that her daughter Tay-Tay's curiosity about the world served as a catalyst for the book's title and structure, with heartfelt writing aimed at her daughter ([00:04:35]] - 00:04:54). Additionally, OiYan wanted to preserve and memorialize the surprising and meaningful conversations she had with Tay-Tay, which she had been sharing on social media ([00:27:37]] - 00:27:59). Finally, she found the academic writing style monotonous and wanted to explore a different form of storytelling that would engage a broader audience ([00:03:45]] - 00:03:56).