"Collapse is not just a defeat but the failure of a belief system," anthropologist Norman Yoffee said Tuesday during his lecture on ancient civilizations. Yoffee, a professor at the University of Michigan, Ann Arbor, spoke at UNLV on the meaning of "collapse" and what he believes to be the false notion that early societies destroyed themselves by obliterating their surroundings... The lecture evaluated the correlation between the past and present and challenged what Yoffee views as inaccuracies in the 2005 book "Collapse: How Societies Choose to Fail or Succeed" by world-renowned geographer Jared Diamond. "The victims of cultural and physical...