In two weeks I’ll be delivering my TEDxPSU talk: Want to know the future? Ask a metalhead. It’s on how heavy metal is really good at telling us about social problems. Maybe we should listen o this hard-to-hear music. Sometimes, it’s a really great risk indicator. For forty-five-plus years metal artists have been providing their … More Black Sabbath, Metallica and the Doomsday Clock @TEDxPSU