Physical Intelligence Researcher Kay Ke on Robot Brains, AI Agents, and Sci-Fi Writing

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Kay Ke, a researcher at Silicon Valley robotics startup Physical Intelligence (PI), sat down with host Zhang Xiaojun to discuss her work on building general-purpose robot intelligence. PI focuses on developing the 'brain' for robots rather than building humanoid hardware, and Kay's daily role involves training robots to complete tasks faster and more effectively. Kay traced her path from competitive programming in Wuhu, Anhui, through multiple undergraduate major changes, to a robotics PhD where she worked on imitation and reinforcement learning within a traditional CMU-lineage lab. She noted that tools like Claude Code are beginning to shift team dynamics, reducing person-to-person reliance in favour of AI agents, a trend that also informs her science-fiction writing. Her fiction explores how automation and robotics may reshape human productivity, social relationships, and individual autonomy in the near future.

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