Twenty-Thousand-Year Lunar Colonization — Retired

Preserved development branch: a 2–5 km-deep far-side base hidden in lava tubes, using low-emission magnetic infrastructure, thermal masking and long dormancy. Later Ma’at forces reactivate it as an Earth-adaptation chrysalis.

This chronology is superseded by the current roughly six-thousand-year ancient Earth-colony model. Its useful location/engineering ideas are retained separately in Lunar Adaptation Base; its age, twenty-millennia dormancy and categorical undetectability are retired.