At first glance, it’s the kind of image you’d scroll past and smirk at — a neat stack of square blocks with a caption that dares you: “Most People Are Narcissists… Count the Squares.” It feels like a harmless brain teaser: count what you see, drop a number, move on. But the second you actually try to count, something changes. You realize the “right” answer depends on what your brain decides is worth noticing. Most people answer fast. They count the obvious top-facing squares and commit.

Others slow down and include the front-facing squares too. A smaller group starts hunting for overlaps and partially visible faces, debating whether something that’s “kind of there” should count. That’s when it stops being just a counting game and becomes a tiny mirror. Human perception isn’t a camera — it’s a filter. Your brain saves energy by using shortcuts: grab the clearest shapes first, assume the structure is simple, stop when it feels “done.”....