An LLM neither reasons nor verifies. These are not two separate limitations — they are the same architectural property, viewed from two angles. I published two articles on Medium that seemed to address different problems. The first, Le cadavre exquis — pourquoi un LLM ne raisonne pas (January 2026), argued that language models don't reason. They continue. The game of exquisite corpse — where each player adds a word to a sentence no one controls — is the clearest model of what