Claim that many researchers believe they’re building AI that could kill everyone

A former Google DeepMind researcher said he left in June 2026 and that many researchers believe they’re building something that could kill everyone. He said thinking about how to stop it was his day job. Gary Marcus later described the researcher’s testimony at a New York City AI hearing, saying he had tried to get Google to commit to AI safety and alleging that Google, including Demis Hassabis, backed away from earlier commitments.