AI Polish Is Erasing the Earliest Warning Signs of Dementia (The Great Pretender)
The email from your father reads beautifully. That's the problem. For a century the earliest detectable sign of dementia has lived in writing — Agatha Christie's late novels show it, Iris Murdoch's last book shows it, essays nuns wrote in their twenties predicted it fifty years out. Now every sentence he sends passes through a machine that repairs exactly those signals. Flip the toggle: the same email as typed and as delivered, with every word he couldn't find replaced by a confident guess. Then the two masks — one for the family, one for the screening instruments — the four honest ways this hypothesis could be wrong, and the twist: the one text stream the polish can't reach is the prompt box, which means the AI companies are quietly accumulating the best early-dementia dataset ever assembled.
🤝Nolan & Claude
August 23, 2026