This interview podcast features Nathaniel Whittemore conversing with Adam Bignell, a founding engineer of Google's NotebookLM. The discussion begins with Bignell's background and the genesis of NotebookLM, detailing its evolution from early prototypes to its launch at Google I/O. A significant portion focuses on the unexpected success of the audio overview feature, a self-organized addition that significantly boosted the product's popularity. Bignell highlights various innovative and unexpected use cases, including applying NotebookLM to real estate disclosures and creative writing. The conversation concludes with a discussion of NotebookLM's potential integration with AI agents and future development, emphasizing the importance of maintaining a playful and experimental approach to its design. A key takeaway is the unexpected ways users are leveraging the tool, showcasing its adaptability beyond initial expectations.