You’re likely thinking that a discussion of “sound banking” will be a bit boring. Well, banking should be boring. And we’re sure officials at central banks all over the world today—many of whom have trouble sleeping—wish it were.

This brief article will explain why the world’s banking system is unsound, and what differentiates a sound from an unsound bank. I suspect not one person in 1,000 actually understands the difference. As a result, the world’s economy is now based upon unsound banks dealing in unsound currencies. Both have degenerated considerably from their origins.

Modern banking emerged from the goldsmithing trade of the Middle Ages. Being a goldsmith required a working inventory of precious metal, and managing that inventory profitably required expertise in buying and selling metal and storing it securely. Those capacities segued easily into the business of lending and borrowing gold, which is to say the business of lending and borrowing money.