if you don't think there is a metric ton of domain specific knowledge represented in what he's already doing then you may not be as familiar with the topics as you think you are or are not remembering what it took to attain that familiarity.
but i am also privy to other areas of knowledge aqusition that might identify this minor more than i fear i have already
i guess that's the difference between people that inherited knowledge (without any need of it) instead of having to arrive at it (because they were feeding themselves and their kids with it).
that kind of explains why, of the over 200 interviews i've conducted, some of the college educated "programmers" i came across seemed knowledgeable; until i made them write code that is.
thanks for solving that conundrum.
It reads as if you have equated skill acquisition with knowledge acquisition, can you say more about what leads you to believe those are equivalent?