About the Horcrux (what brought this up?): Dumbledore implied to McGonagall that there was only one Horcrux. It's possible to construct reasons why he would do that when he knew there were more, but it's evidence against the idea.
And the trial: Dumbledore seemed to be basing his actions on a rather bad model of Lucius. Unless you think the outcome of the trial was what Dumbledore had in mind?
what brought this up?
Knowledge that Harry is a Horcrux, plus Harry's recitation of his encounter with Lucius, are sufficient to deduce that Lucius thinks Harry=Voldemort. So, "Dumbledore doesn't appear to know this during the trial" is not evidence for or against "Dumbledore overheard Harry-Lucius conversation".
Dumbledore implied to McGonagall that there was only one Horcrux.
He only implied there was one that needs to be found.
And the trial: Dumbledore seemed to be basing his actions on a rather bad model of Lucius.
Could you ...
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 85. The previous thread has long passed 500 comments. Comment in the 15th thread until you read chapter 85.
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.
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: