Statesboro, GA, USA
If one doesn't know exactly what is in a box, he still knows something about what is in the box, that is he knows that it exists, and is something in the box, and something beyond what he can presently see by looking at the surface. Thus he has knowledge about what is in the box before he even opens the box to see what specifically is there. Surely that makes sense?
Sure it makes sense. But there's still the possibility that one might not know about the box, or whether there is anything in it. Or that the object (or knowledge) in question isn't anything as common as a box. What you seem to be avoiding is the conclusion that people may be genuinely ignorant.
But even if I argue complete ignorance is possible, I do agree with you Essorant, that God is the one being to whom Ed's description of "complete ignorance" does not apply. The Bible tells us that he has given a general revelation to all, whereby psychology is inclined toward a knowledge of the necessity of Deity. A knowledge that is often abused and distorted through sin and ignorance, but still present. One can say "I know nothing of mycology". One cannot as assuredly say "I know nothing of God".