Yes, money is a technology which allows you to determine the exchange rate of commodities, but money itself is also a commodity and is also subject to the force

Yes, money is a technology which allows you to determine the exchange rate of commodities, but money itself is also a commodity and is also subject to the forces of supply and demand. Big increases in the supply of money cause it to decline in value. If one coin is worth 15 chickens now, one coin is only worth 13 chickens in <12 months. Savings are necessary for a rainy day. Without adequate savings, you are one natural (or man-made) disaster away from starving. It is absolutely not a "waste of human output," to keep some aside, but is being responsible for oneself. Saving is not possible under high inflation, as the savings lose purchasing power too rapidly. Someone who wishes to save is forced to make risky investments just to maintain the purchasing power of what they previously laboured for.