It appears Quirrell now believes Harry has used the killing curse. Applying Story Logic, this misjudgement of Harry will lead to Terrible Bad Consequences for Quirrell.
Some ramblings before ch90: Quirrell will not learn the truth of how Harry killed the troll, since Dumbledore will memory charm the Weasely brothers (they saw Harry's patronus) and thus discover that their minds have been tampered with (by Quirrell). Suspecting Quirrell, Dumbledore will also erase the Weasely brothers' memories of how Harry actually killed the troll. Quirrell will not actually see the dead troll. He will not be told how it died.
If Dumbledore does not find memories of the maraurder's map in the Weasely brothers' minds, he may well make the Quirrell=mort connection immediately: Dumbledore used the map to unsuccessfully locate Tom Riddle, and only a professor could have tampered with the minds of students who have been in Hogwarts this whole time.
It appears Quirrell now believes Harry has used the killing curse.
One look at the troll's supine body should clear that misconception. Didn't he reach the site by the end of the chapter?
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 88-89. The previous thread has passed 500 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.
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: