Outside of the place of origin
After the discovery of the beyond and the taming of the fire - was the transition from the physics age (paleolithic / stone age), into the chemistry age (neolithic, characterized by the development of metallurgy), a primal milestone of human development history. Re-shaping the natural resources to design for humankind.
The exsitu series faces and couples these two elementary ages in a primitive implementation. A invitation to utilize nature with fundamental technical evolution for convenience.