The best joke from the White House correspondents' dinner

In the era of the mega-billionaire, much has been made of how such gargantuan wealth is built and what kind of taxes on wealth are fair and unfair.

The intricacies of economics can make such questions a bit tricky both practically and ethically, but there's no question that billionaires get enormous tax breaks through loopholes in our tax system and through straight-up tax legislation favoring the wealthy.

For the average American who will never see so much as one percent of a billion dollars in our entire lifetime, wrapping our minds around the financial workings of extreme wealth is like trying to learn another language. The whole "here's how much money I earn, here's what I can write off, here's what I pay in taxes" thing is pretty straightforward, but not how the uber-rich life works. Wealth doesn't equal money in uber-rich-land—except when it does.