How Many Watermelons Are In This Picture? 90% OF PEOPLE GET IT WRONG.

seems difficult before it is recognized and completely obvious afterward.

The watermelon challenge has exactly that effect.

Before noticing the halves, the circles dominate the viewer’s attention.

After noticing the halves, it becomes difficult to understand how the pieces ever looked like complete watermelons.

The image has not changed.

The viewer’s interpretation continue reading …