There's no definition of 0 risk that involves lending out 350 billion dollars of your own funds and hoping you don't make a single mistake of any kind that caus

There's no definition of 0 risk that involves lending out 350 billion dollars of your own funds and hoping you don't make a single mistake of any kind that causes you to not get your money back. And that's even before you address the opportunity cost of lending out funds at 1% interest.