A human translator keeps a scratch pad — a glossary, a set of decisions about terminology. When translating page one hundred, a human does not re-read page one from scratch. And when asked, "Why did you translate it this way?" the translator can point to the scratch pad and say, "On page twenty I made this decision; I wanted to remain consistent." The current AI system cannot offer that kind of explanation, because its output depends on the entire matrix of everything it has generated and consumed. That is the second black box.