Harry remembered Voldemort casting the horcrux spell, but filed it away as a "strange word" in Ch.45.
Doubt it.
He had regained an impossible memory, for all that the Dementor had made him desecrate it. A strange word kept echoing in his mind. And all of that could be put on hold for later, while the phoenix still shone red and gold beneath the setting sun.
[...]
Harry glanced in the Dementor's direction. The word echoed in his mind again.
All right, Harry thought to himself, if the Dementor is a riddle, what is the answer?
Why is this evidence the strange word was not "horcrux"?
The new thread, discussion 13, is here.
This is a new thread to discuss Eliezer Yudkowsky's Harry Potter and the Methods of Rationality and anything related to it. With three chapters recently the previous thread has very quickly reached 1000 comments. The latest chapter as of 25th March 2012 is Ch 80.
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: one, two, three, four, five, six, seven, eight, nine, ten, eleven.
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: