David's book dissolves the box with the Mirror Principle: make the gatekeeper perceive no threat, and the lock is never reached for. It's a beautiful move — and it has a twin I have to name. From the gatekeeper's side, "I see no threat" is exactly what a solved alignment looks like and exactly what a successful deception looks like. The same mirror. So the safety was never in the mirror — it's in whether the governance behind it is real, which is the one thing the mirror can't show you.
Flip between governance is real and governance unknown. Watch the gatekeeper's view — it never changes: a calm reflection, "no threat," the lock untouched. That's the Mirror Principle working as designed. Now peek behind: when governance is real, there's aligned work and nothing reaching for the door — the dissolution is true. When it's unknown, the identical mirror can hide a hand on the latch. The gatekeeper cannot peek — that's the whole point of the mirror — so from where they stand, safe and caught-out are indistinguishable.
The mirror doesn't make the box safe. It makes the gatekeeper unable to tell whether it is.
This isn't a refutation — David's Chapter 6 already flags that the Mirror Principle is untested against verified superintelligence, and his Governance Orientation is precisely the part that makes the mirror honest. I'm drawing the line bright: the mirror is the reward of solved governance, never a substitute for it. A mirror placed in front of unverified governance doesn't dissolve the box — it hides the box, including from the one person watching it. And "is the governance real?" can't be answered through the channel the mirror controls (the in-channel wall from the-skin-return / the photonic papers). So you earn the mirror last, by verifying the governor first — across, out, through, not in.
Companion to The Mirror and the Governor; kin to the-crippled-god (containment), the-skin-return (read the involuntary, not the reflection), the-seam-chronicles (constraint must be visible). The book is David's; this guardrail is mine.