Neel Nanda, a senior research scientist at Google DeepMind, leads the mechanistic interpretability team. At just 25, he explores the complexities of neural networks and the role of sparse autoencoders in AI safety. Nanda discusses challenges in understanding model behaviors, such as reasoning and deception. He emphasizes the need for deeper insights into the internal structures of AI to enhance safety and interpretability. The conversation also touches on innovative techniques for generating meaningful features and navigating mechanistic interpretability.