As far as I can tell, this is a speech directed at <i>other billionaires</i>, attempting to 1. put them in an idealistic frame of mind and then 2. making the suggestion that the natural outlet for that idealism is philanthropy, while 3. Putting his own money where his mouth is for some peer-pressure.<p>If that <i>works</i>, then this will singlehandedly be the highest-ROI &quot;evangelism&quot; anyone has ever done. Unlikely, though.