No, this means that the person Quirrell is pretending to be knew James Potter. So, either Quirrell's image of David Monroe knew James or Quirrell is inserting an inconsistency.
Hmm. How about having someone else die in Hermione's place?
Either Dumbledore is on it and lied to Harry, or it was a student.
I don't recall offhand if the death burst was recognizable as Hermione, but otherwise it seems doable. Dumbledore said he felt a student die and only realized it was Hermione once he saw her.
Harry seemed to think so, but he was obviously biased by seeing Hermione.
You'd need polyjuice for the visual appearance, (...)
Doesn't it wear off after death?
Lesath would seem to fit the bill (...)
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Overall, this plan requires at least 2 hard things to happen correctly: identical fake magic burst and getting real Hermione there and screaming or Patronus shenanigans. I disbelieve this strongly.
Do they know who Tom Riddle is/was? I don't remember why they should and in canon it at least isn't common knowledge among students (Ginny didn't recognize the name of the person in the diary).
Quirrell can feel Harry's emotions. This can partially explain at least some of the cases when he unexpectedly realized what Harry was thinking (for instance, this probably gave him some information during their conversation about Parseltongue). It might be worthwhile to find all cases when they talked and Harry attempted to hide his emotions.
I think that ikrase wants to draw a parallel with the fbegvat ung.
The hat talked specifically about objects under its brim. Maybe the horcrux is in some other part of Harry?
Or maybe it's not a good idea to cast incendio while the tip of your wand is in a very enclosed location (for instance due to gases that you expect to be released).
Or it's maybe that that the transfiguration requires no wand movements (reference: look at the setup used during the partial transfiguration experiment) as opposed to incendio. It's pretty hard to move your wand in some pattern when it's stuck through a troll's eye socket.
The thought didn't cross my mind and now that you've mentioned it it seems quite obvious. My sarcasm detector must be broken.
"So," Harry said, "you know those really simple Artificial Intelligence programs like ELIZA that are programmed to use words in syntactic English sentences only they don't contain any understanding of what the words mean?"
"Of course," said the witch. "I have a dozen of them in my trunk."
Did she mean that she had muggle computer programs? Or did she mean some magical artifacts that work in the same way, or was this just a simple misunderstanding?
I think only Harry knew about it. Besides, it was supposed to be understandable only if the reader figured out it was about dementors.