The money is established as a medium in the middle of the Exchange. People need to use that money to help make easy money in trading over the exchange of things of things.
Money is what started as a medium of exchange in the middle of change. People need money It's easy to make money in commodities trading. Pressing switch over to swop.
Money is what people established a mediator in the middle exchange, people need money. Because of the money made easy trading goods. Than to exchange things to things.