Money, Loans and credit
The Legal System, Religion
Politics, Ethics and morality
Labour for income, Specialization
the earth is not growing, resource preservation=Human Survival as a Species, but the univers is expanding, can we really proof it actually?, or we are getting smaller, Humans need resources to survive in Space as water, food, air. As far as I am aware of the closest planet in our solar univers which has these is around Saturne.
Degrowth as a resource