Yiyun Li opens by declaring the task impossible — and means it. Writing about Anne Carson is, she says, like dividing zero by zero: the problem itself reveals the limits of the tool you're using. This is not a humble disclaimer. It is the thesis. Carson's work exists in a register where ordinary critical language collapses, and Li's essay performs that collapse in real time, which is a more honest account of what Carson does than any conventional appreciation could be. The core of Li's argument — to the extent this is an argument and not an act of devotion — is that Carson does not master language. She lets it be. Where most writers impose structure on words, Carson surrenders to them, following the logic of ancients and of grief rather than the logic of career or form. Li quotes Autobiography of Red: 'Words, if you let them, will do what they want to do and what they have to do.' For Li, this is not a poetic idea. It is a practice she has watched Carson execute, page after page, across decades. The personal stakes arrive without fanfare. After their older son Vincent died in 2017, Li spent a winter reading Carson's Grief Lessons — her translation of four Euripides plays. Then her younger son James died. She read it again. The book's absence from her shelf on the morning of Carson's Nobel announcement — probably in a classroom, probably being handed to students — becomes the essay's most precise image: Carson's work is not decorative or aspirational. It circulates. It gets used up and replaced and used again. Li teaches Carson periodically, but insists teaching her is a category error. What she actually does is hand the work to the next generation and wait to see who lights up. Twenty years of watching first encounters. Some, like Li, become lifers. Some find Carson's words are 'the only words to read in life's extremities.' She doesn't say which kind of reader you are. She trusts you to find out. The Nobel announcement occasions the essay but doesn't drive it. Li is not writing about an award. She is writing about what it means to have a body of work that stays useful when everything else fails — not comforting in the therapeutic sense, but clarifying in the way that Euripides is clarifying: it shows you the shape of what you're living through. The math metaphors that bracket the piece (dividing zero by zero, infinity minus infinity) are not decorative. They are the only honest way to describe what happens when grief and language and time collide with a writer of Carson's capacity. What Li can't quite say — but the essay implies — is that Carson's Nobel is not merely deserved. It is a rare instance of the prize landing on a body of work that has already proven itself in the most demanding possible test: the rooms where people are barely surviving. That is a different kind of recognition than cultural prestige, and Li is too precise a writer to conflate the two. This is an occasional essay, constrained by its form: short, personal, unable to linger on individual works at length. Li acknowledges the limits from the first sentence and then proceeds anyway. What she produces is less a critical account of Carson than a phenomenology of reading Carson — which, given the subject, may be the more honest genre.