Hyperinflation is the dissolution of money. Prices rise so fast that the currency ceases to perform its basic functions. It is no longer a store of value — savings are wiped out in weeks. It is no longer a medium of exchange — sellers refuse to accept it, demanding foreign currency or barter instead. It is no longer a unit of account — prices change too quickly for meaningful comparison. The money dissolves into paper.
The classic case is Weimar Germany in 1923. At the peak, prices doubled every 3.7 days. Workers were paid twice a day so they could spend their wages before they lost value. A wheelbarrow of banknotes could not buy a loaf of bread, but the wheelbarrow itself was worth something. The currency had dissolved into its material substrate.
More recent examples include Zimbabwe (2008, monthly inflation rate of 79.6 billion percent), Venezuela (2018, estimated annual rate of 1.7 million percent), and Hungary (1946, the worst on record, with prices doubling every 15 hours). The causes vary — war reparations, land reform, oil price collapse — but the mechanism is the same: the government prints money to cover its obligations, the money supply expands faster than the supply of goods, and the currency dissolves.
Hyperinflation ends when the old currency is replaced — by a new currency, a foreign currency, or barter. The dissolution is total. The currency that dissolved does not return. What replaces it is a different currency, issued by a different authority, backed by a different promise. The dissolution of money is also the dissolution of the trust that money represents.
In Fiction
The hyperinflation of the Weimar Republic appears in fiction primarily as atmosphere — the sense that reality itself is dissolving along with the currency. Christopher Isherwood's Goodbye to Berlin (1939) captures this dissolution in a single image: "The cornices of the buildings dripped with melting snow. The streets were full of black slush." Everything is dissolving — the snow, the money, the social order. The Nazis are gathering in the background, promising solidity in a world that has turned to slush.