Banks requirement is that they have 10% of assets on hand at any moment. So if you, or the federal reserve gives them a dollar, that means they can create a rec

Banks requirement is that they have 10% of assets on hand at any moment. So if you, or the federal reserve gives them a dollar, that means they can create a record of 9 dollars owed to other parties without being over levered. Remember that's what is being done here, numbers in ledgers are increased but nobody has to send a brinks truck to move pieces of paper or bullion.