Richard Dawkins’ talk at the 2009 Atheist Alliance International Conference in Burbank, California. He expands the last paragraph of Darwin’s “On the Origin of Species” as a framework for the talk. This is also the framework for the last chapter of Dawkins’ new book “The Greatest Show on Earth: The Evidence for Evolution”. See more about “The Greatest Show on Earth” at: richarddawkins.net Download Quicktime Web: c0116791.cdn.cloudfiles.rackspacecloud.com 720p HD: c0116791.cdn.cloudfiles.rackspacecloud.com Filmed by JOSH TIMONEN Edited by JOEL PASHBY