Part 2/9:
It is estimated that since the emergence of Homo sapiens around 50,000 years ago, roughly 108 billion humans have lived and died. This perspective is powerful when we visualize it—arranging deceased individuals and living ones in a statistical representation such as a population pyramid, organized by age and gender. Such a staggering visualization reveals the significant impacts of events like World War II. The massive spike in deaths during that period demonstrates the lasting effects of war on human history.