Cash vs Digital Assets: How Modern Mediums of Exchange Really Work

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The friction between cash and digital assets is not just technological. It is deeply intellectual. For decades, mainstream economics treated money as an exogenous policy instrument, a neutral lubricant that central banks could expand or contract to manage unemployment and smooth economic cycles. In this framework, state backing gives currency its authority, and any asset that functions reliably as an accounting ledger can theoretically serve as money.

Monetary theorists rooted in the Austrian school of economics see the sequence entirely differently. Drawing on Carl Menger’s foundational work on the origins of money, they argue that money is never invented by government decree. Instead, it emerges organically through trade. Certain goods possess higher "saleableness" or marketability than others. Over time, traders converge on the most liquid, durable, divisible, and transportable commodity until it becomes the primary medium of exchange. Only after an asset wins widespread market acceptance as an exchange medium does it begin to serve as a reliable unit of account and a dependable store of value.

This sequence explains why most decentralized digital assets struggle as everyday currencies. Bitcoin gained traction as a speculative asset and a non-sovereign wealth hedge, but it inverted Menger’s historical process. It attempted to function as a speculative store of value before ever achieving frictionless, universal circulation as a day-to-day settlement tool. When purchasing power swings by 5% to 12% in a single trading week, businesses cannot price inventory in that asset without constant repricing chaos.