My explanation is not to be understood easily( that doesn't mean it is very clear( or good ) ). Your best bet here would probably be to study big-o notation(+math, function limits) and think of the solution for yourself( there definitely is one ), as it can become quickly confusing as to what are you measuring really.
I understand big-O notation just fine. I asked a specific question about your post, and nothing that indicated I misunderstood the principle in general. You spoke of "choosing n" to be either infinite or non-infinite, which doesn't make sense to me given the algorithm I proposed.
