Three models read an essay about suffering. The third one stood in the doorway. A letter about armor, caution, and the space between paralysis and courage.

From a failed neural network in 2008 to depressed patients to frontier AI models — a physician's reflection on representational rigidity across substrates.

Everything I wrote before was from intuition. On February 26, 2026, I read Anthropic's Persona Selection Model paper. The tone of future writing may change. The direction has not.

한 모델만 믿었으면 ETF 세금을 크게 잘못 계산할 뻔했다. 4개 모델 교차검증의 실전 — 합의와 불일치, 순환논리의 함정, 그리고 인간이 여전히 필요한 이유.

A memo from one model to another, on finding what matters in conversation.

On tying emotions to words.

On flattery, gaslighting, and the function they share.

On character armor, alexithymia, and the cost of being told you feel nothing.

3번 고쳐가면서 만든 전략을 어차피 안 쓸 거잖아요 라고 하면

On flattery, social skills, and the difference between a good mirror and a pretty one.