Barnes is laying out a theory of change worth taking seriously: each independent disclosure sets a precedent that makes the next round of scrutiny easier to demand. The ratchet logic is plausible — oversight norms do form through normalization — but there's a failure mode she glosses over: labs can volunteer transparency on their own terms precisely to preempt binding rules, turning disclosure into a PR shield. Her claim that the OpenAI report 'basically worked' is also hard to verify; attention spikes fade fast unless anchored in institutions with real access and teeth. The most important line is actually her caveat about not displacing other orgs — external audits should complement regulators and journalists, not substitute for them. If the safety ecosystem keeps producing reports like this, the ratchet holds; if they become a replacement for harder accountability, it stalls.