Just Wondering Vol.4

So I was thinking, what does money base it self off of, at first I just assumed it was the gold standard, but apparently its not. America actually got rid of that in the 1960s, so I did some research and it actually runs off of itself its valued by itself, so according to the way the economy works, we are working our entire lives away for fancy paper with linen in it. Let that sink in, so the point of this is what would happen if the whole world stopped using money?