One of the real failures of over-specialization.
To take it one step further, many of the academics that I know are very specialized, but still somehow believe that they understand everything about everything. Yes, they've achieved a lot in their given area, but there's an overconfidence that often comes along with that, as well, I believe.
@BE again agreeing so much!
@BE so much agree. What I've noticed is that many, maybe because they're so focused on their specializations, tend to lose focus on the very basics. It somehow disables them to understand scenarios outside their field of study.