Money numbs your senses. People who touched paper money and then placed their hands in hot burning water didn't feel as much pain as those who hadn't touched money.

Look at Google. They are re-organizing their businesses ,even renaming it with Alphabet, so they can be bolder and make strategic mistakes and then learn from them. But most companies aren't Google in that they make incremental changes and don't go for the moon shot.

Money is becoming increasingly plastic and digital. If there is a major disaster, let's say an asteroid strike, we'll go back to trading meats and furs. We won't need an abstraction, a dollar bill, but real tangible goods to survive.

We are privileged that the dollar is the "currency of last resort" and the most important currency in the world. Global commodities are priced in dollars. Central banks in other countries hold great quantities of dollars. The dollar was the safe harbor, the port in the storm during the credit crisis.

People have tried to control other people by trapping them with debt. A loan can become a harmful and dangerous weapon.

In essence, money gives us the calories we need to survive. Over time, we became aware that exchange and cooperation increase our chances for survival. Eventually we create tools to facilitate trade. One of these tools is called money.

On a biological level, the brain registers money as something valuable - even a dollar bill which has no intrinsic value, it's just paper.