Christen Majors, Chapter 10, question

Money serves as a mean of exchange and wealth is measured by the accumulation of of all things that have value. Money is used during trade and commerce. Before paper money was used as a medium of exchange humans used material objects such as bottles and pans and necklaces. They used these things because they were confident that they could trade these things and get something in return of equal value. We now use paper money for the same reason because we it has become a mean of exchange that we are confident will be able to be used to by what we need. Now that I think about it what will we be using as a medium of exchange in 2027?