Physical scenarios, universal exchange across all industries – just like the pizza exchange method from back then, exchanging with consensus value of equivalent material, everything flows naturally. After all, people earn money and accumulate wealth to ensure worry-free food, clothing, housing and transportation. In this era of intelligence, homogeneous centralized procurement and homogeneous distribution – if there is no consensus, they wouldn't appear under the same sky. Achieving internal circulation means using exchange to solve real material needs, and above the spiritual and moral world, voluntarily exchanging gratitude feedback, additionally adding an extra layer of life, huddling together for warmth with consensus, co-construction and sharing a mutual material life guarantee. No matter what we're doing, ultimately it's all for ensuring food security and elder care............ Welcome to exchange ideas.