1. The mask is convex only on one side.
2. The mask is rotating in the right direction.
Who are you? Crazy or genius?
If you answered both questions wrong, do not worry: you are a completely healthy person. If one of the answers was obvious to you, it is time to get a friend that is a psychiatrist.
The truth is that the brain of a healthy person tends toward self-deceit. It takes into account artificial forms and extra shadows, “correcting” the picture. We swallow the hook of the illusion, no matter if we want to or not.
Schizophrenics do not have this imagination. Their brains cannot establish the connection between the details. They see the mask just as it really is. For them, the mask is concave and rotates in one direction.
What difference does genius make? Schizophrenia and genius are not that different. But still, it is possible to distinguish between them. Genius personalities possess both types of thinking: that of a healthy person as well as the schizophrenic one, and they are able to switch between the types of thinking. They see the illusion just the way a normal person sees it, but they also see the catch immediately. If they want to, their brain may stop perceiving the deceit.