It’s tempting to believe that we can simply rely on personal experience to develop our understanding of the world. But that’s a mistake. The world is large, and we can experience only very little of it personally. To see what the world is like, we need to rely on other means: carefully-collected global statistics.Of course, our personal interactions are part of what informs our worldview. We piece together a picture of the lives of others around us from our interactions with them. Every time we ...