Crypto glossary

Sound money

Definition

Sound money is money whose supply cannot be expanded at will by governments or banks, an idea central to Bitcoin culture and Austrian economics.

The term has a long history in debates over the gold standard. Economists of the Austrian school, such as Ludwig von Mises, argued that money should be outside political control, so that governments cannot finance spending by creating currency and eroding savings. Under that view, gold-backed money was sound and unbacked fiat currency is not.

Bitcoin advocates adopted the phrase because the protocol enforces a fixed, predictable issuance schedule that no central bank can change. Slogans such as fix the money, fix the world express the belief that sound money encourages saving, long-term thinking and limited government. The concept appears often in discussions of inflation, central bank policy and bitcoin's role as a reserve asset.

Mainstream economists dispute the premise, arguing that an inflexible money supply can deepen recessions and that modest inflation and central bank tools help stabilise economies. Critics also note that bitcoin's price volatility makes it a poor unit of account today. Whether a fixed-supply asset can work as everyday money at scale remains an open question.

Example

In a podcast debate, a bitcoin advocate argues that sound money would have prevented the currency debasement seen in high-inflation economies, while an economist counters that it would limit the response to financial crises.

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