Ioannis Antonoglou, a founding engineer at DeepMind and co-founder of ReflectionAI, shares his journey in developing groundbreaking AI technologies like AlphaGo. He discusses pivotal moments in the legendary match against Lee Sedol, the role of self-play in advancing AI, and the engineering challenges faced in creating AlphaGo. The conversation explores the evolution toward artificial general intelligence, including innovations like AlphaZero and MuZero, and highlights the importance of planning and scaling in tackling real-world problems.