The Story of Money

In a barter world you swap what you have for what you want. But for any deal to happen, the other person must want exactly what you're offering, right now, in the right amount. Economists call this the double coincidence of wants — and it makes trade slow, clumsy, and often impossible. Money fixes it by being one thing everybody accepts.

The earliest money was just useful or rare things everyone accepted: cattle, salt, grain, and above all gold and silver — prized everywhere because they are scarce, durable, and never rot. Roman soldiers were sometimes paid in salt — the root of the word salary.

Modern money isn't backed by gold. It works purely on trust: trust that others will accept it tomorrow for the same value as today. When a government prints too much and that trust collapses, you get hyperinflation — prices doubling in days, or even hours.

In the 1800s, Singapore's docks took Spanish and Mexican silver dollars, Indian rupees and Chinese coins all at once. Order came slowly: the Straits dollar, then the Malayan dollar, and finally — in 1967 — the Singapore dollar, issued by Singapore's own currency board.

First came cards, then chips, then phones. In Singapore you can go for days touching no cash at all — NETS (Network for Electronic Transfers), PayNow and PayLah! move money instantly between phones. The cash didn't disappear; it just turned into data.