I don't think Tom Riddle would show up on the map, as Dumbledore drew a circle around Quirrell and presented him to the Hogwarts Security System as "The Defense Professor". I'm guessing the map just taps into that system, so that is all they'll see. It could be the constant one, as all the others show up by name. but I'm not sure they'd make a fuss about that.
As for the intermittent, I'm guessing it's Harry when he wears the Cloak - It is explicitly said that it doesn't just turn you invisible like other cloaks, but hides you completely (except for the eye, apparently).
My other candidate for the intermittent one is Time Turned people, but since several students have Time Turners I'm guessing the twins would figure it out eventually. More likely, it just shows the 'current' version of the person.
...Actually, if that were the case, the map could be used to figure out which of the copies isn't time turned. Not sure what you'd do with that info, though.
As for the intermittent, I'm guessing it's Harry when he wears the Cloak
If the Weasley twins noticed Harry appearing and disappearing, they wouldn't be calling that "[the] intermittent one", they'd be calling it "Harry" or "Potter" or something. No?
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 90. The previous thread has passed 750 comments.
There is now a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,18,19.
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