Determine whether the following dispute is verbal, factual, or some combination of the two. If verbal, discuss whether the dispute arises from vagueness or ambiguity.
HAROLD: Professor Steinbeck is the most intelligent man I know. His lecture series on matter and consciousness was simply brilliant.
JOYCE: Steinbeck is actually an idiot. Yesterday I watched while he tried to get his car started. When it wouldn't start, he opened the hood, and he didn't even notice that someone had stolen the battery.