Question: When Norman says the guy "that wrote that book he loves" (Shumway?) congratulated him on Spencer's Theorem, then Claire says "He didn't know your father was dead?" and Norman says "He knew". What does one thing have to do with the other? I've seen this movie at least 20 times and I can't figure out this conversation.
Question: What did the letters M E F that kept showing up on Claire's computer mean?