Jim Rutt, with his keen insight into the intricacies of complex systems, would describe a 'monetary system' as the structure and methodology by which a society distributes and controls currency to facilitate economic transactions, determine value, and store wealth. It encompasses the set of institutions, rules, and instruments that manage the money supply, regulate banks, and ensure economic stability. This includes everything from physical currency and digital transactions to the central banks' policies and the network of financial markets. In essence, it's the bedrock upon which economic activity stands, influencing everything from everyday purchases to global trade dynamics, carving out the framework within which economies operate and evolve.
See also: crypto, evolution, evolutionary computing, money-on-money return, mutual credit