People mistakenly think that "chocolate that can never be eaten" exists because they are deceived by vision. And this subtle change will cause visual errors to people's eyes. Visual error is a special aesthetic phenomenon. In fact, it is not a mistake as mentioned, but a special phenomenon that external objects have a certain degree of acceptance difference in people's acceptance system. Although the shape of chocolate remains unchanged after cutting, if you measure it with a ruler, you will find that its length and width are smaller.

People's eyes are often focused on the previous cutting, and they can't accurately capture the changes in the length and width of chocolate, so they think that chocolate will never be eaten. As for the chocolate that has been cut and taken out, it can still be seamlessly spliced, but the angle is skillfully used for cutting and splicing. In a word, the rectangular area pieced together after each cut is a little smaller than before. With the increase of cutting times, the rectangle of chocolate will become smaller and smaller. Therefore, "never-ending chocolate" does not exist, but a visual deception.