John is a research scientist at OpenAI. Previously he was in the computer science PhD program at UC Berkeley, and before that he studied physics at Caltech. His research focuses on reinforcement learning, where he strives to develop systems that can match the impressive skills of mammals and birds for locomotion, navigation, and manipulation; and he is especially interested in applications in robotics. He previously performed research in (and is still interested in) neuroscience. Outside of work, he enjoys reading, running, and listening to jazz music.