In this impassioned, funny, and deeply thoughtful essay, Katherine Cross excavates a fallen world of social media's political promises, from Twitter epidemiology, to handwringing over TikTok, to the ersatz hopes of new platforms like Bluesky. A kind, incisive, and unsparing argument from one of the Millennial Generation's wisest essayists, Log Off is a poisonous love letter that asks: Is this all really the praxis that posting was supposed to be?