Real money holds its value over long periods of time, this was already known during Aristotle’s time. As dollars get continuously printed and debased (reflected in higher prices of everything) it becomes harder and harder to store your wealth reliably. Back in Aristotle’s day, he would be able to buy a fine set of gentleman’s clothing for about 1oz of gold. Today that same ounce will buy a nice suit, shirt, shoes and belt. When Zimbabwe’s hyperinflation sent the economy in to ruin, 0.1g of gold (roughly $3) was used to buy a loaf of bread. In Canada, the dollar lost 25% of its value during the first decade of the new millennium, while gold gained 400% in value.