Investing.com: "Humans can print currency (money) but we can’t print fresh water, energy, wild fisheries, etc. If one unit of currency currently buys one liter of petrol, printing 10 more units of money doesn’t create 10 more liters of fuel. --Creating currency out of thin air isn’t free in our system: all new currency is loaned into existence and accrues interest. As a result, all currency is a claim on future earnings. If we borrow enough from the future, and earnings remain flat or decline, eventually there’s not enough income left to support the debt service and the expanding consumption the status quo needs to keep itself glued together."Basically correct, but leaves out the fact that most of the energy we use is wasted on stupid things like autos and sprawl.