Was it the need to address global warming? If so, couldn’t that have been done much more effciently by a mass-email and direct mail campaign where everyone would be told why we need to address global warming? How about giving everyone free copies of Al Gore’s book and movie? Wouldn’t that have been more effcient than 22 hours of music mixed with statements like “If you want to save the world, jump up and down!”?
If you learned something more specific, what did you learn? And, were you unable to learn that from a quick google search?