Clausius, one of the main founders of the modern thermodynamics, is the originator of the term “entropy,” but before this coinage he used an expression “equivalence value of transformations” instead. The term “entropy,” which is now used as a physical term, was originally economically conceived as equivalent value of exchange. Thermodynamics itself was a field of physics that was economically motivated to improve the thermal efficiency of heat engines. So, it was half physics and half economics. Apart from Clausius’s interest, the term has now become an important keyword for solving the environment and resource problems.
You can imagine a culture as a correlate to self-sufficient economy where everyone could collect information and create works solely by himself without any communication with the others. Actually, however, we exchange commodities through money and views through language.
Why does money have value and circulate, though it does not have value in itself? I will answer this question in terms of the system theory.
A social system is not just a gathering of people. It does not consist in the interaction between people either. You can find a mere causal interaction between things.
The usage of the pronoun I is not innate but acquired. At first, Infants use their proper names to refer to themselves. It is so difficult to master the usage of I that it takes a long time for infants to know how to use the first-person pronoun. When, how and why did we get to use the first-person pronoun?
An ad hoc consultative agency of the prime minister in Japan, where there is no conscription, proposes that all 18-year-old children should engage in such social service as care for old people for a year. I'm afraid that, once this institution is established, it will be difficult to do away with it. Children of less than 19 years may well object to this compulsory gratuitous service, but they have no suffrage. When they come of age and gain their suffrage, they will have gone through with the service. If someone tried to abolish it, they would complain, "Why don't our junior have to serve us, while we serve our senior? We cannot admit such unfairness."