Common future challenge and task performance

The local conversion formula is the two-level interface recorded in Psy03-A thm:nodepilot CheungPsy03A. The new feature is its attachment to an explicit irreversible register.

For $C(T)>0$, the averaged task becomes progressively worse in $t$ in this comparison. That conclusion uses the specified harmful edge removal and common readout; it does not follow from scar count alone.

In the noiseless scarred sector, carrier coherence can survive even though the chosen node readout loses its phase-label signal. Changing to a phase-basis readout changes the performance verdict. This is observation-specific vulnerability, not automatic coherence destruction.