You don’t overestimate yourself
Have you ever heard of the Dunning-Kruger effect? This phenomenon occurs when less qualified people overestimate their abilities, while extremely competent people underestimate their capabilities.
Well, it’s possible the same thing applies to intelligence. The most intelligent among us don’t like to brag, because they understand that there is much they still don’t know. That’s not necessarily the case for people with low IQs, however…