so bill and linda gates gave a lot of money to their foundation when they created it in the 1990s, so that money doesn't count. they contributed about $18 million to bill and melinda gates, actually more than twice that. 20% of his fortune. the other big surpri is michael bloomberg was number three. we don't hear a lot about kind of him as a mega philanthropist, because gates and buffett are so huge. but he's given over 10% of his fortune. the number one surprise was that, jeff bezos, the summer. he's given only $68 million, with an m. i think when you look at everyone else on that top ten list, it's a standout. >> here's the question. because he does -- some would say his support of the "washington post" is effectively a charitable move. is that part of where he's coming from? or is he like warren buffett, he was criticized for not doing things and later in life did a splashy thing obviously? >> people i talked to close to bezos said blue origin, the space company he founded, which is funded with billions of dollars of his own money is a for-profit enterprise, is part of his philanth