system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Does all the money in the world really exist physically? If you added up all the bank accounts, would there be physical money to equal that?
gpt
Not only does the money not physically exist, there is no means to tell exactly how much money DOES exist at any given time.  
Let me give you an example.  

You have $10,000.  
You put that $10,000 in the bank.  You still have $10,000.
The bank (being a bank) lends $9000 of that money out to a company. 
You still have $10,000, but the company now has $9000, too.  
The company uses that $9000 to pay nine of its workers.  Each of those workers takes home $1000.   
You still have that $10,000, and each of those workers has $1,000.
One worker puts that money into the bank.  And the loop starts all over again.  
Money is imaginary.