As the Joker once said in TDK: "I only have one question..."

Rating: 4/10 (14 February 2019)

Many, including the American Film Institute, hail this as the #1 movie of all time.
This is a different kind of negative review. I don't care how "boring" or "slow" some have mentioned this film is. Two of my favorites are "The Shawshank Redemption" and "12 Angry Men". That said... I saw this movie once, mainly because it was the "required assignment" one week for a film class I was taking at the time. It might have been a ground-breaking achievement in cinema, but I could not get past the major plot hole. Kane whispers this word with his dying breath. Then the nurse enters the room, from the opposite end too, mind you.
My question: Who heard him say "rosebud"? The entire premise is to ascertain the meaning behind a word nobody was present to hear him say. And no, "the audience" doesn't count.