: Renaissance Protocol: Open-Source Passive Solar Cooling, Water Harvesting, and Bio-Energy System

The Aerocement Passive Thermal Kingdom (APTK) is a civilization-scale energy system made from cement, water, air, and earth. It provides cooling, fresh water, food, and fuel without the grid. Includes validated physics (5 rounds of peer review), open-cell aerocement mix guides, and integrated bio-energy loop using Black Locust continuous shoot harvest.