Our parents often tell us "Find a job to make your life !". We can see on 2013 that it is more and more difficult to find a job. Adam Smith, the guru of actual economy, explains that work is value. Yet when something is rare, it has more value, without even working to make that.
When Robinson Crusoe arrived into an desert island, he was sinful. He lived like an animal with the first fruits he found. Since he could only feed with fruits, they had got a high value.
With fire, he could (...)