Google recently fired a researcher, Satrajit Chatterjee, who questioned a paper published in Nature that claimed computers could design certain parts of a computer chip faster and better than humans. Google defended the paper and declined to publish a paper rebutting some of the claims made in Nature. The paper in Nature promoted a technology called reinforcement learning, which Google had been working on for years. Dr. Chatterjee had reservations about some of the paper’s claims and questioned whether the technology had been rigorously tested.