Technology is not a gift from the sky, but a bone that grows from the flesh and blood of the earth. A group of people abandoned by the West used the ancient wisdom of nomadic civilization to temper in the wind and sand a sharp blade that pierced the sky. Ayiguli fell off a cliff while gathering herbs for her mother, and relied on the eagle flute taught by her father to survive. Chen Fan discovered that her grandfather's diary contained antifreeze maps of Pamir minerals. On the night of the liquid nitrogen test, Ayiguli applied mother's ointment on the sample: "Mom, watch it survive for me!"
