Try reading this:
Money supply - Wikipedia, the free encyclopedia
Or if you have 10 min watch this:
Federal Reserve Banking System Explained - YouTube
If the lending stopped with one bank I would agree with you. This money is created out of thin air and the repeated lending by multiple banks increases the original deposit by nine times.
I will leave you with a statement by John Maynard Keynes in his book:The Economic Consequences of the Peace (1919) "
There is no subtler, no surer means of overturning the existing basis of society than to debauch the currency. The process engages all the hidden forces of economic law on the side of destruction, and does it in a manner which not one man in a million is able to diagnose."
repeated lending by multiple banks increases the original deposit by nine times
Yes. Yet each bank lent less than deposits.
Name Amount deposit Amount lent Reserve
John $100,000.00 $90,000.00 $10,000.00
Mary $90,000.00 $81,000.00 $9,000.00
George $81,000.00 $72,900.00 $8,100.00
Mike $72,900.00 $65,610.00 $7,290.00
Sue $65,610.00 $59,049.00 $6,561.00
Tom $59,049.00 $53,144.00 $5,904.90
Dick $53,144.00 $47,829.69 $5,314.40
Harry $47,829.69 $43,046.72 $4,782.97
Bess $43,046.72
Totals $512,579.41 $56,593.27
John 's deposit was money he made working in the economy. Everyone else obtained a loan and deposited the money in a different bank. As you see here a total of $512,579.41 was loan out. All created out of thin air. Each person in the example has their deposit available and an equal amount of debt. This is how bubbles are created. You don't see any thing wrong with this?