The next discussion thread is here.
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 84. The previous thread has passed 500 comments. Comment in the 14th thread until you read chapter 84.
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.
As a reminder, it’s often useful to start your comment by indicating which chapter you are commenting on.
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:
You do not need to rot13 anything about HP:MoR or the original Harry Potter series unless you are posting insider information from Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).
If there is evidence for X in MOR and/or canon then it’s fine to post about X without rot13, even if you also have heard privately from Eliezer that X is true. But you should not post that “Eliezer said X is true” unless you use rot13.
In addition to what the others have said there are numerous other passages and oddities that hint at Quirrel = Voldemort = Harry's dark side. Harry and Quirrel describing a Horcrux between them when they talk about the Pioneer plate. Quirrel saying he "resolved his parental issues to his satisfaction" long ago, just after saying being grateful for his parents could never have occured to him. Quirrel having a much better model of Harry than of Draco or Hermione, particularly when Harry's dark side is involved. Harry's dark side and Quirrel both being extremely vulnerable to Dementors. Harry's dark side and Quirrel both being very good at pretending to be other people. Quirrel's extremely odd reaction when Harry talks about having a mysterious dark side and his going along with the convenient conclusion that it's just another part of Harry. Dumbledore and Snape recognizing Voldemort's hand in Quirrels actions. Harry's dark side hating Dumbledore. And so on.
The strongest piece of evidence for Lucius believing Harry to be Voldemort is his "I know it was you" message after breaking out Bellatrix.
And of course, from Chapter 34: