One morning over breakfast, my children asked me, "Dad, are we rich? Does this happen to you?" It might. You know, it's a powerful question and a surprisingly difficult one to answer. I looked at our breakfast table and I said, "Well, there are just enough bread rolls for everyone. We have enough." But that's not the same as being rich.Imagine someone puts more bread rolls in front of your door than you can eat every day. The richest 1% would need a shovel. And the billionaires, they need a truck every day. ...