Money, Banking & How Economies Work

Money is a shared hallucination — and the moment people stop believing in it, it collapses. That sounds dramatic, but it is literally what happens during hyperinflation. Money only works because everyone agrees it does. Strip that agreement away and you are left with paper.

Here is what money actually does: it acts as a medium of exchange (you swap it for things), a store of value (you save it for later), and a unit of account (you use it to compare prices). These three jobs seem simple. But notice that two of them depend on the future — saving and comparing prices only make sense if the money will be worth roughly the same amount tomorrow as today. When a government prints massive quantities of new currency, it floods the market with supply while the amount of actual goods stays the same. More money chasing the same goods means prices rise. If prices rise fast enough, the store-of-value function breaks entirely. Why hold something that loses half its purchasing power every few weeks?

Picture a fruit seller who charges $2 for an apple on Monday. By Friday, because the money supply has doubled, she needs $4 to buy the same supplies. So she charges $4. The government prints more to keep up with higher prices. Prices rise again. The cycle feeds itself. People spend money the moment they receive it, because tomorrow it buys less — and that behavior accelerates inflation further.

Now here is where it gets harder in practice — because the people causing the disaster often believe they are helping.