The phrase I used was actually “extinction scenario” rather than a singular event, and “most people die immediately, an unlucky few eke out lives of unspeakable

The phrase I used was actually “extinction scenario” rather than a singular event, and “most people die immediately, an unlucky few eke out lives of unspeakable horror and pestilence for a handful of generations before the species collapses entirely” was basically what I had in mind. Really though I can’t imagine what you think this pedantic obsession with whether or not everyone gets blown up immediately is adding to the conversation.