Comment by Grombobulous

There are other good reasons to have a reasonable amount of inflation.

If inflation is too low or doesn’t exist, then there’s less incentive to do anything with your money. If I have bunch a money that I don’t need to spend immediately, and I just want to keep it secure, why would I not keep it in a safe or non-investment account if it’s not losing value over time? What’s my incentive to risk it by lending it out to someone else?

Sure, I could say that my incentive is the interest rate, but my alternative is zero risk. Inflation turns “zero risk” into being more like a certainty of slow value loss, so that holders of capital are incentivized to do something at least minimally risky with that money (e.g., lend it to the government in the form of treasury bonds or deposit it into an insured bank account).

Debt has something of a bad reputation and obviously it can be overused and abused, but it’s also something that helps the efficiency of economies. It maximizes the amount of money actively participating in the economy rather than sitting.