A man widely considered the “godfather” of artificial intelligence (AI) says he quit his job at Google to speak freely about the dangers of the technology. Geoffrey Hinton recently spoke to The New York Times and other press about his experiences at Google, and his wider concerns about AI development. He told the Times he left the search engine company last month after leading the Google Research team in Toronto, Canada for 10 years. During his career, the 75-year-old Hinton has pioneered work on deep learning and neural networks. A neural network is a computer processing system built to act like the human brain. Hinton’s work helped form the base for much of the AI technology in use today.