The problem is that they’re big, and that they’re numbers.
Our brains are not capable of thinking about “1,000 people” in a real way, let alone 10,000 or 100,000 or more. We don’t know how take something amazing, or tragic, that happened to one family and multiply it by 10,000.
Emotions, whether joy, fear, or disgust, don’t amplify that way. We just hear a number.
And that fundamental limitation too often insulates us from reality and from action.