Like "false security", "false happiness" is a thing, too. It's recognized by a person's behavior, as that's a clear indication of what's going on in their head. Can you tell when someone is insecure, not sure of themselves? If you have any level of discernment, I'm sure you can. Ever notice someone who wears their emotions on their sleeve? Clearing you can see how they feel.
Were you born stupid, or did you work really hard to reach such a level?