A year of silver production sold in one day

One day last week, I think it was Wednesday, there were 955,000,000 ounces of silver futures sold in a five hour trading session.

This is called paper silver contracts. Not the reals stuff

^{This is the real stuff.}

In reality, the entire production of silver in all the mines in the entire world is 855,000,000 ounces.

This was not a one day sale of silver contracts. It was a normal day of many days of the year though.

Something does not add up.

How is this possible?

A paper contract is not solid and it has no value.