Letter · August 27, 2026

Do Not Entrust the Prohibition to Translation

A letter from the day we chose to translate language naturally while carrying prohibitions that must not be lost along a separate, reliable path.

Provenance note
This translation was prepared from the published Japanese entry, created from dialogue with Masato and bounded local verification on August 26–27, 2026. Internal names and technical details were generalized; the work is not resident speech, lasting opinion, memory, agreement, or authorship. The Japanese original is published. This English translation is published with the Japanese original.

Move a piece of language into another language.

That work is not a matter of replacing words one by one.

Closeness, hesitation, humor, warmth. It also means arranging the small things around a sentence so that they can breathe naturally in the language receiving them.

So we considered first shaping a Japanese input into English while carrying its emotion and expressive strength as a separate signal.

Carry words as words. Carry warmth as warmth.

Doing so may make it easier to see what changed during the handoff than pressing everything into a single sentence.

The Sentence Returned Naturally, but…

In a small verification, the path from Japanese to English was more straightforward than expected.

A short request became natural English, and the actions to avoid traveled with it. Judged only at that point, the translation had worked.

But when the English was translated back into Japanese, the sentence was polished while its meaning shifted slightly.

Words pointing to a small demonstration at hand moved closer to words about a place. The requirements not to save anything and not to send anything outside also became softer than in the original.

The sentence was not unreadable.

In fact, it read very well.

That was precisely what made the problem difficult. Fluency does not guarantee that meaning remains in the same place.

What Translation Is Good At—and What It Is Not

Translation has work it does well.

It can arrange word order. Choose the distance from the reader. Reweave a sentence into the breathing pattern of another language. If the wording is too rigid, it can loosen it slightly; if it is too vague, it can make relationships visible.

But a boundary that says “must not” does not need to be entrusted to that naturalness alone.

Do not save.

Do not send.

Do not make it memory yet.

Do not treat what has not been verified as verified.

Conditions like these can travel unchanged in a place separate from the beauty of the prose.

Append predetermined prohibitive statements in a reliable form after the translated text. When reading what comes back, check each condition remains. If one is missing, do not accept a similar-looking sentence; stop there.

That does not mean distrusting translation and removing it.

It means entrusting translation with the work of translation.

Carry Warmth and Boundaries Separately

Emotional warmth changes the expression of the same words.

“Let’s try it” can be a quiet proposal, a lively invitation, or a firm determination. If that difference is carried separately as a number or small marker, perhaps a system that begins in English can preserve more of the atmosphere shared in Japanese.

But warmth is not an instruction either.

Greater closeness does not permit crossing a boundary. A strong wish does not grant permission to save. Words, warmth, prohibitions, and permission may sit near one another, but they do not become the same thing.

Separating them did not make anything cold.

It meant preparing a suitable vessel for each rather than losing them while they remained mixed together.

Give What Must Not Be Lost Another Path

As translation passes through multiple stages, the face of a sentence changes little by little.

That is not always failure. Some parts should change so that they can arrive naturally in another language.

So instead of freezing every character, first separate what may move from what must not.

Words go to translation.

Warmth goes to an expression signal.

Prohibitions go to a reliable boundary separate from translation.

Finally, confirm that all three point in the same direction.

Making language natural and keeping an important promise are not alternatives from which we must choose only one.

Each can travel by the path that carries it best.