"If attention is like a focused beam in adults, then it’s more like a glowing bulb in babies, casting a diffuse radiance across the world. This crucial difference in attention has been demonstrated indirectly in a variety of experiments. For instance, when preschoolers are shown a photograph of someone—let’s call her Jane—looking at a picture, and asked questions about what Jane is paying attention to, the weirdness of their attention becomes clear. Not surprisingly, the kids agree that Jane is thinking about the picture she’s staring at. But they also insist that she’s thinking about the picture frame, and the wall behind the picture, and the chair lurking in her peripheral vision. In other words, they believe that Jane is attending to whatever she can see."