Yesterday, I was browsing Reddit. Midway through my feed, I stumbled upon a video from a German TV show, where a 9-year-old girl demonstrated her ability to quickly identify the difference between two seemingly similar images.

In one example, she was presented with two images of hundreds of coffee beans spread out on a table. To my eye, both images looked exactly the same. But it took her only a couple of seconds to call out that there were missing coffee beans on the left side of the image. She repeated this with other images, always almost instantly calling out the differences. I was baffled. How is this possible?