[MUSIC] And finally to make sense of all of that, let me read something to you. This is from The Years of Rice and Salt by Kim Stanley Robinson. Have ever of you read Years of Rice and Salt? He's a science fiction writer, he wrote Red Mars, Blue Mars, Green Mars, about terraforming Mars, those are really rather gripping books. This is a real boring book. The premise of the Years of Rice and Salt is that the plague, the black plague in the 14th century killed everyone in the west and that civilization grows up through the east, through Islam, Buddhism, Confucianism. And it turns out civilization goes through exactly the same sort of horrors that the west had gone through. That's the theme of the book. But, there's one passage in the book that makes everything worthwhile. It occurs in the 19th century and there's an, there's a Rajah in India who's interest is in science and technology and human progress, and he recruits engineers and scientists to come to India to irrigate and to do science and this is his recruiting speech. We will go out into the world and plant gardens and orchards to the horizons. We will build roads through the mountains and across the deserts, and terrace the mountains, and irrigate the deserts until there will be garden everywhere and plenty for all. And there will be no more empires or kingdoms, no more caliphs, sultans, emirs, khans or zomindars. No more kings or queens or princes. No more qadis or mola or olima. No more slavery and no more usury. No more property, no more taxes. No more rich and no more poor. No killing or maiming or torture or execution. No more jailers and no more prisoners. No more generals, no more soldiers or navies or armies. No more patriarchy, no more more caste. No more hunger. No more suffering than what life brings us for being born and having to die, and then we will see for the first time what kind of creatures we really are. Thank you. >> [APPLAUSE]