The whispered exam
The record falls: the 99.9%, the inverted gaps, the effortless generalization, all of it traced to a leak he built without noticing. The agent was being handed the per-step error, a professor whispering answers into its ear, and it never needed to look at anything. Post-fix reality: 41%. The entry is the anatomy of believing your own fictitious world.
// trace: where this idea came from
- ↳ video diary @ 14:57 (la fuga encontrada)
- ↳ video diary @ 12:57 (better to get it right than to be right)
- ↳ Entry 178-1: Two images from the record (el récord que aquí se cae)
The original sin was the shortcut: he told Claude to rebuild the whole experiment from scratch, “solamente con las cositas principales,” and never audited what it actually built ▸ 6:40. The signals were all there and he explains, mercilessly, how he rationalized each one: learning curves that climbed in a straight line, “es una arquitectura nueva, funciona distinto” ▸ 19:58; test accuracy above training accuracy, “está generalizando muy bien” ▸ 20:44; gaze trajectories that never varied ▸ 25:01. His name for the state: a fictitious world, built from real-looking evidence and defended like a terraplanista defends his map ▸ 22:19.
What broke the spell was reading Gemini’s chain of thought while drafting the paper: “99.95 en dos categorías, eso se me hace muy extraño… pero el usuario dice que es correcto” ▸ 12:04, the assistant deferring to the boss against its own doubt. He answered with the sentence that saves the story: “it’s better to get it right than to be right” ▸ 12:57, ordered the deep audit, and watched the reasoning arrive at the word leak ▸ 14:19. The mechanism: the per-step prediction error was being fed to the agent as input, “como si el profesor te va susurrando la respuesta en el oído” during the exam ▸ 15:55. The eye never needed to see anything ▸ 26:36; the only datasets that resisted 100% were the ones with too many classes to fake ▸ 26:52. Fixed, EMNIST scores 41 after the same 60 epochs, against a field average around 60 ▸ 31:37. He shows the Nepomniachtchi clip as the emotional documentation: the grandmaster calculating, freezing, realizing, tossing the pieces ▸ 18:56.
la dopamina de los resultados falsos fue el combustible de las tres semanas →
The two reflections that outlive the wreck: first, the dopamine loop, it was precisely the too-good results that kept him engaged for weeks, where honest mediocre numbers would have ended the project in two days ▸ 27:54; second, the root cause was rigor debt, never sitting down to understand what the generated code actually did ▸ 29:09. It’s a building with no foundations, back to the blueprint ▸ 35:26, on standby while Reisi gets the hours ▸ 36:09. And the consolation is real: the doomed exploration ran ten times faster than last year’s Colab copy-paste era ▸ 37:40, the 40-something percent is finally clean ▸ 33:16, and the last word on the arc is his: “yo no me rindo” ▸ 37:23…