Catastrophe offers a concise, unflinching look at the imminent existential threat posed by superintelligent AI, but through a personal and humanized lens rarely seen in the genre. Unlike other recent works, the author asserts that AI without limits will inevitably lead to human extinction, arguing there's fuck-all we can do to avert this impending near-term catastrophe. Yet despite this bleak outlook, Catastrophe shows us how to find both purpose and agency in the face of such an implacable horror. Our actions, it argues, are crucial. They may be all that's left to perpetuate the human story for as long as possible.