Thirdly, many of the greatest evils could have been prevented by miraculous interventions that would not have been detected. Consider, for example, interventions to prevent natural disasters such as volcanic eruptions, or earthquakes, including the earthquake in China in 1556 that killed around 800,000 people, or tsunamis, such as the one in 2004 that hit 12 Asian countries, and killed over 200,000 people. Or consider the interventions that would be needed to prevent pandemics, such as the Black Death in the Middle Ages, which is estimated to have killed between 75 million and 200 million people, or the 1918 flu pandemic, which killed between 50 million and 100 million people.  Similarly, consider great moral evils, such as the Holocaust. A small intervention by an omnipotent, omniscient, and perfectly good being could have allowed one of the many failed attempts to assassinate Hitler to succeed, or a small mental nudge could have resulted in Hitler’s realizing the error in his virulent anti-Semitism.