Not stupid even when wrong?

To be wrong is to be stupid, isn't it? That is if you are not actually villainous. I mean, come on, you are either lacking in knowledge and/or understanding OR you belong to the others who are in opposition. What can be clearer than that?Yet, Tiru actually thinks that some people can be wrong and, yet, not stupid. AND, in his time, they were not enlightened enough to consider anyone who differed