A confluence of conditions conspired to bring metals to Earth and make them accessible to humans. Can a Darwinian process take the credit? On this ID The Future, host Andrew McDiarmid concludes a two-part conversation with Dr. Eric Hedin, professor emeritus of physics and astronomy at Ball State University in Indiana. Dr. Hedin describes the conditions within ourselves and the conditions within our environment that were finely tuned to allow for our successful utilization of metals. He also speaks to what our use of metals reveals about the moral character of human nature, and why metals remain vital to us today. This is Part 2 of a two-part conversation. Don't miss Part 1! Source