An economic system resembles a living organism both in details and in its integral behaviour. Tiny cells of an organism are like individuals who consume things and produce substances that are used further by other cells or pollute the environment. Conglomerations of cells constitute glands and organs in very much the same way as fusion of humans and man-made machines brings forth industrial plants, manufacturing subsystems, social organizations and all other elements of economy. The functions of transportation system are paralleled by blood system and numerous nerve channels do the same service as communication means in economy.
Cells, very much like people, are not independent in their input-output activities: enzymes produced by specialized cells co-ordinate production of substances according to global ideas of the organism. In economy there are also quasi-enzyme products that are never used as production factors but play a cardinal role in directing human activities. This quasi-enzyme substances are known as luxuries.
Due to sophisticated control all organs are given hierarchical priorities in consuming vital resources very much the same as elites are safeguarded on all levels of society. Cells and organs in a living creature are the same things as producers and sectors in economy. They own products and exchange them in order for the whole body to pursue its aim in accordance with physical laws involved in metabolism of products. There are no principal difference between an economic system and a living body except the following.
Besides all usable products an economy system (unlike a living body) produces a void product with no consumable properties. This void product is known as money (not only cash) and it is indispensable in any economy as a means of quantitative control. Why a live body doesn't seem to need a void product for its metabolism? The only answer is because genetically programmed behaviour of cells plus information processing by the central nervous system are sufficient to keep all parts of an organism in stable balance.
In an economy system behaviour of participants is also genetically programmed but a substitute of the central nervous system is so poor in its information productivity that homeostatic control via money distribution becomes unavoidable. This type of control is not satisfactory in accuracy and the resulting errors bring about numerous social problems. So the evolution of an economy system occurs irregularly from one crisis to another. These irregularities use to be compensated through changing the money distribution (prices).
Thus the evolution of an economy system is ultimately dependent only on physical (including biological) laws with money being just an intermediate parameter. The laws governing the behaviour of an economic system are essentially non-monetary. Technical progress gradually emulating the central nervous system will eventually bring the value of money to zero.
Pragmatic aspect of non-monetarism is disclosed in this link.
Historical evidence is described in RePEc: Non-monetary economic thought ...