I don’t believe capitalism is necessarily the problem --- the pursuit of individual interest often produces a collective good for society and decentralized control and the freedom of choice is extremely motivating and efficient. But we must re-learn that it's to our individual best interest, society’s best interest, and that of our children’s best interest, to no over populate, over produce, or pollute our environment. There have many social moments in history where groups of people have earned their rights -- the abolishment of slavery, women’s right to vote, etc. Now we need a new social movement – the rights of the young and future generations (and many poor people all around the world) – to live in a clean, productive, and sustainable world and to have the same opportunities of life, liberty, and the pursuit of happiness. I can imagine a society that has a higher standard of living than the average person in the world has today and that is sustainable; but it has a lot smaller population and somehow we have to get from here to there in the next 100 years.