Existential Risk

The category of threats that could end human civilization or a nation outright, rather than merely damage it. In Nuclear War — a Scenario, the framing is concrete rather than abstract: a North Korean satellite engineered to carry a small nuclear warhead and detonate it over the United States for an EMP strike is described as “an existential threat to the United States” — the so-called Doomsday Scenario, plausible enough to “compel the United States to take active measures” to keep such a satellite from ever reaching orbit. The book’s deeper claim is that full-scale nuclear exchange is the existential case where the usual logic of conflict collapses: “the epic, existential tragedy is that these last and final nuclear battle maneuvers cease to matter on anyone’s scoreboard. Everyone loses. Everyone.”

Context: Existential risk (sometimes “x-risk”) is a term of art in risk studies and philosophy for events that would permanently curtail humanity’s potential — nuclear war, engineered pandemics, runaway AI, asteroid impact. It is associated with thinkers like Nick Bostrom and the Future of Humanity Institute, and is distinguished from ordinary catastrophic risk by its irreversibility.

Where this appears

• Nuclear War — a Scenario — frames North Korea’s EMP “Doomsday Scenario” as an existential threat, and full nuclear exchange as the case where everyone loses.

Mentioned in

• Discourse: The Anthropic Resignation Thread — Hubinger’s “>10% within the next decade” and the argument over whether the labs’ own risk reports already concede the premise