That’s a common refrain, and I guess seeks to explain academic blind spots. But I do wonder if it’s not rather a form of victory disease where some of your intelligence can effectively shield you from the consequences of your stupidity allowing to hold incorrect beliefs far longer.

As best I can tell the smartest people hold more true beliefs and have fewer blind spots which has me leaning towards the latter explanation. But as this is purely based on my subjective observations it’s possible that this is merely the result of my own biases.