Air has very little value due to excessive supply. If I charged you 50 dollars for a bottle of air would you buy it? No you wouldn&#x27;t.<p>What if I restricted the supply of air by choking you? Give me $100 dollars and I&#x27;ll let you breath for ten seconds. Suddenly 10 seconds of air is worth more than $50 dollars.<p>You demand air to survive but how much you pay for air (aka the value of air) depends on me controlling the supply.