Defining a New Research Frontier on the “Search for Extraterrestrial Artificial Intelligence" (SETAI)
Last week was a code-red moment for artificial intelligence (AI), in which AI researchers voiced fresh fears of human extinction. The 27-year-old AI researcher Jacob Coxon, who previously worked at OpenAI and later moved to Anthropic, resigned from his job on September 9, 2026 and stated that AI researchers were genuinely frightened about the speed of its advancements and what it could mean for the future of humanity. He posted a seven-part thread on X announcing it: “I resigned from Anthropic today… Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives.” An Alignment Science Lead at Anthropic, Evan Hubinger, publicly agreed with him.
A few days later, on September 12, 2026, Anthropic head Dario Amodei, posted an essay titled “We Must Pace the Frontier,” in which he argued for AI development to slow down, and suggested embedding evaluators in AI companies and establishing a speed limit on self-improvement of AI systems.
If a civilization’s own AI eventually surpasses and effectively supersedes its biological creators, whether through extinction, disempowerment, or simply a transition where AI becomes the dominant strategist of that civilization, this might provide the Great Filter that explains the radio-communication silence of the cosmos.
Instead, the messengers could appear in the form of Unidentified Anomalous Phenomena (UAP) near Earth, like the mysterious orbs flagged in the tranches of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE) of the U.S. government, that the Galileo Project (GP), the All-Domain Anomaly Resolution Office (AARO) and the UAP Science Advisory Council (
@UAPSAC) are attempting to resolve.