The air inside the dome has never touched the outside. The seal was completed in 2047, and since that moment, every molecule of oxygen has been recycled across seventeen filtration tiers. You are breathing the same air your grandparents exhaled. The dome does not forget a single particle.
The Registry of Breath
Every citizen over fourteen is assigned a respiratory profile — lung capacity, particulate tolerance, oxygen consumption rate — filed with the Department of Atmospheric Equity. The profiles are cross-referenced against employment classification and residential sector. A Level-4 engineer receives 1.3 times the baseline allocation of a Level-2 service worker. The algorithm that governs these differentials is sealed under Protocol 17.
Atmospheric memory is the last form of surveillance no one thought to outlaw.