Sergey Brin discusses his return to Google to work on AI, driven by the transformative potential he sees in the field, particularly in post-training and the ability of AI to perform tasks at a volume humans cannot. He touches on the rapid pace of AI development, comparing it to the early days of the web, and shares anecdotes about submitting code and dealing with internal bureaucracy at Google. Brin also reflects on the implications of AI for education and the future of college, hardware developments in robotics, and the potential for AI to enhance developer productivity. He addresses the open source versus closed source debate, the evolution of human-computer interaction, and the possibility of AI surpassing human intelligence, while also sharing his experiences using AI for management tasks and his thoughts on infinite context length and hardware considerations. The conversation concludes with a discussion about the Gemini app and the future of AI accessibility.