What is money, anyway?

Numbers in this episode

3 jobs

Trade (a medium of exchange), saving (a store of value) and measuring (a unit of account), as economists describe money.

3,000+ yrs

Cowrie shells were used as money in China in the Shang and Zhou eras (about 1600–1000 BC), and in West Africa into the early 1900s.

~2,600 yrs

The first coins were struck in Lydia, in today’s Turkey, in the 7th century BC from electrum, a natural mix of gold and silver.

~1,000 yrs

Government paper money (jiaozi) began in Song-dynasty China in 1023–24.

1971

The US closed the “gold window”: foreign governments could no longer exchange dollars for gold.

≈ 1 in 10

Cash was $2.39 trillion of the $23.34 trillion US M2 money supply in August 2026 (Federal Reserve H.6).

2008–09

Zimbabwe’s hyperinflation peaked in November 2008; in February 2009 the country stopped using its own dollar for foreign currencies, including the US dollar and the rand.

Script

For education only; not investment advice. The fish-for-shoes trade is a thought experiment; historians debate how often whole societies relied on barter. Prices in the trade scenes are examples. Narration uses a synthetic voice (Kokoro text-to-speech). Part of Bitcoin Basics from The Steady Block: @TheSteadyBlock on YouTube and X, TheSteadyBlock.com.