Harry has been trained to look at details. . . .
Ah, yes, as was pointed out by one of the main characters in the Babylon 5 novel, "To Dream in the City of Sorrow", "If the devil is in the details then so too must be god." I rather expect Harry is going to find, by attention to detail, all sorts of interesting relationships and knowledge that'll help him. Too, as has been pointed out in my business (aerospace), attention to detail is necessary to prevent un-necessary casualties (Apollo 13 was the result of seveal lapses of attention to detail).