The recovery: a body that has reached breathable air again. Same shape
as the drain, opposite-sign emission — re-raises spo2 toward baseline
and self-cancels at baseline (no overshoot). Keeping recovery an
engagement (not an instant snap) makes the unconscious→conscious
transition observable on the same cadence the drain used, and the
benign steady state stays zero-cost once it self-cancels.
The recovery: a body that has reached breathable air again. Same shape as the drain, opposite-sign emission — re-raises
spo2toward baseline and self-cancels at baseline (no overshoot). Keeping recovery an engagement (not an instant snap) makes the unconscious→conscious transition observable on the same cadence the drain used, and the benign steady state stays zero-cost once it self-cancels.