Sex, AI, and the Apocalypse

How a community devoted to thinking clearly incubated salvation stories, abusive experiments, race science, and an affection for autocracy, and why that history matters now that its alumni are asking for the public trust on AI.

If worries about AI safety and the end of the world entered your life recently, it’s probably because of a resignation letter.

On September 8, 2026, a researcher named Jacob Coxon quit Anthropic, the one of the two premier AI labs in the U.S. whose brand has tried to cultivate the image of being the careful one relative to its competitors. He had spent the previous three years doing pretraining research at OpenAI and then at Anthropic, the engine-room work that makes large models capable, and his goodbye note said, among other things: “The people building AI earnestly believe that it could kill us all by the end of the decade. This is not a marketing stunt.” He left two months before his equity vested and walked away from it. The post was viewed more than a hundred million times within a day.