Why is a printed piece of paper worth anything? How can a coin be worth more or even less than the number stamped on it? Why is digital money real money? How can money be worth more or less than it was yesterday?Since the emergence of debit and credit cards, many of us pay little mind to our finances and hardly think of money anymore. But currency, whether by cash or debit, is the driving force of our lives. We use it to feed ourselves and our loved ones, buy or rent a place to live, buy clothing and other necessities, and pay for transportation from one location to the other.We trust the system, even though we don