1) Harry is a horcrux who forgot his entire previous life.
2) Not sure.
3) I like the theory that it was Quirrell but I would only put it at about 20% likely.
6) Peter Pettigrew.
7) The terrible secret is that Dumbledore intentionally sabotaged Snape and Lily's relationship by writing bad advice into her textbooks in Snape's handwriting. It would indeed be bad if Snape discovered this.
8) I'm pretty curious about this one. I think that if it were discovered, say, a year later that Bellatrix was gone, and the potion was found, the authorities would assume that Bellatrix had used the potion to become an animagus and escape.
I thought the terrible secret was that Dumbledore was sneaking into the girls' dorms turned invisible.
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 87. 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.
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: