Necessity is the mother of invention...(Attributed to Plato)
I think many mothers from our time said that. I know mine did.
She and my aunt and uncle would also say ...clean your plate, dont waste your food, eat all of it, cause there are people in the world who dont have food... or something like that. I think it was also they and the country was poor when they were young. So food was not as easy to come by in those days.
Go back even further in history and in many places food was even more scarce for most of humanity. So on and so on as we go further back.
I think my mother and father encouraged me to overeat when going out to a diner to buy a sit down meal of steak sandwich or shrimp. Then on way home I would lay in back seat and groan from overeating.
After WW2, there began a prosperity in USA --if not also Europe-- and world wide to whatever degree. It has been a golden age of a privileged life --especially whites--, altho, most of humanity has seen prosperity grow since WW2.
Sure, humanity can keep eating away at our environmental resources, and pollute our atmosphere, water and Earth along the way to greater riches of a more and more golden life of privilege. At what costs, might the native american indian's say?
Maybe salt reactor nukes will extend the privileged golden age to become a diamond age.
Who has the money/gold makes the rules is golden rule. Is their a diamond/money rule?
All-for-one and one-for-all spirituality in humanities future or other? I suppose there exist various futuristic sci-fi scenarios out there for years, and more to come.
..." Waste not want not.