A clear distinction between the master and the apprentice is the mental model that they operate from. If a relevant concept is clearly absent from your thought process altogether, it can be described as a disability.
I am currently visiting legacy code written by novice programmers. This code base clearly demonstrate a lack of separating microsecond, millisecond and second domains. Disk access, sql server access and web service in the middle of loops. Although there was an elaborate architecture to separate the service level from the data level, comprehension of the penalties involved by ping-ponging between them in the control flow timeline appears to have been void.
The code made absolutely no sense until I started adopting the thought process behind it. And suddenly I was able to leverage the blind spot, foreseeing likely sore spots.
Socrates said that the hallmarks of an educated mind is to be able to entertain a notion without adopting it.
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