Why Money is just a joke

What is Money?
Humans used to collect rich resources like Rice, Water, meat, wheat etc to live, the only problem with them was of exchange with other goods. like if I have rice and I need wheat. what should I do?
barter system didn't worked that well too..
so the human started to use gold as currency, that system went well..
then the question of security raised, people wanted someone to save gold from thieves and robbers. then the first bank was formed. they offered to save their gold on little amounts and giving them a paper of "I owe you ___ gold" where they can use that paper to buy and sell stuff without carrying their gold with them..
that was the first paper money so far.
since the human is greedy and wicked, they start making things more worth of golds and the greed raised proportionally.
ration of poors was raising, here the bank offered to give them LOANS on a small amount.
bank was giving loan to people, the money they get from the people who saved their money in the bank..
wonder what if even Bank used his all of the money?, and what if the customer come to claim his money on the same time too..
wonder where does all the money comes from?

to be continued...