Nigel Goldenfeld tutorial on Emergence

This is a slideshow and spoken commentary/tutorial that I gave for the National Academy of Sciences Keck Futures Initiative symposium on Complexity in 2008. The original video is no longer available, but I figured out how to recreate the posted version and am providing it here in response to many requests. Hopefully it is helpful, as there is a lot of confusion about this topic. A similar but not identical talk is available on the Perimeter Institute website.