The trouble with our economy is not hard to discover. Principle is loaned, but principles plus interest must be repaid, and the interest was not created, only the principle. Therefore, no matter how much money enters the economy, the amount due for repayment is always greater.
People do it all the time, and there is nothing remarkable about it.
Paul shakes his head and mutters something about price gouging, and inflation, and then adds a little more to the bills he is sending out to his customers. This scenario is repeated ad infinitum. At some point, someone needs to go to the bank for a loan. If this did not happen, and all debts were paid, the supply of money would become extinguished, since principle is loaned from thin air, and when repaid, disappears as easily as it was created. Inexorable market forces, therefore, generate more borrowing until the point is reached where it isn't worth the trouble.