Sense, I was young I´ve always thought that the banks only are financial intermediaries of money, but they´re also creators of money and they do it through credit. Whenever a credit is raised, money comes into existence and that´s something I think all of us need to know. That´s the bank´s way of earning money, to lend money created out of thin and then put interest on it. To me, this reality becomes more and more obvious when rates are close to zero and most people and countries are buried in dept. Until today, I haven´t heard a bank saying that we don´t have any money to lend because there are too few depositors. And for that reason, I think there is fewer and fewer that save their money on bank accounts with 0% of earnings. So, where does all money comes from?
I think our current financial system is in its final steps and I believe we´re on the doorstep towards another system where cryptocurrencies seem to be a part of. Professor in Economics, Richard A Werner from England talks about this and linked bellow is both a video and a great article by him, posted in International Review of Financial Analysis, Dec 2014.
http://www.sciencedirect.com/science/article/pii/S1057521914001434