Why Optical Illusions?

Why Optical Illusions?
Recently I have noticed an interesting comparison, and I’d like to share with you my thoughts about it.But first let me show you some famous optical illusions. Most likely you’ve already seen them somewhere on the Internet, but let us look at them one more time.For example, here is the well-known illusion of the girl who rotates in an undetermined direction. I recall a number of lengthy discussions, when it first appeared online, as to which way sh...