
LessWrong (30+ Karma) “Journalist’s inquiry into a core organiser breaking his nonviolence commitment and leaving Stop AI” by Remmelt
Dec 5, 2025
A journalist investigates a core organizer's drastic shift from a commitment to nonviolence at Stop AI, illuminating Kirchner’s intense fears about AI endangering lives. The discussion covers his hotheaded temperament, a crisis leading to his expulsion, and a mysterious two-week disappearance. There’s a debate on whether superintelligent AI poses an existential threat, highlighting a tactical split within the AI-safety community. The aftermath includes concerns over safety, group responses, and a leadership change pushing for hopeful strategies.
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Organizer’s Break With Nonviolence
- Sam Kirchner publicly committed to nonviolence yet became increasingly intense and fearful about AI killing loved ones.
- That shift culminated in alleged violence, his expulsion from Stop AI, 911 calls, and his subsequent disappearance.
Divergent Views Strain Movements
- The episode highlights deep disagreement in AI risk assessments across experts and activists.
- Extreme personal belief in imminent catastrophe can strain movements and decision-making.
Threats, Lockdown, And Vanishing
- Kirchner left Stop AI and allegedly threatened OpenAI employees, prompting an office lockdown and concern from organizers.
- Stop AI members reported an assault over funds, a missed court hearing, and found his apartment empty, prompting police and company notifications.

