Update: Discussion has moved on to a new thread.
The load more comments links are getting annoying (at least if you're not logged in), so it's time for a new Harry Potter and the Methods of Rationality discussion thread. We're also approaching the traditional 500-comment mark, but I think that hidden comments provide more appropriate joints to carve these threads at. So as of chapter 67, this is the place to share your thoughts about Eliezer Yudkowsky's Harry Potter fanfic.
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. The fanfiction.net author page is the central author-controlled HPMOR clearinghouse with links to the RSS feed, pdf version, TV Tropes pages, fan art, and more, and AdeleneDawner has kept an archive of Author's Notes.
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Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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.
New:
There was a long silence in the backyard. Then a boy's voice said, calmly and quietly, "What."
Previous:
Harry just stood there, stunned. That was... unexpected... The skeptical part of himself noted that he still hadn’t seen anything that violated the known laws of the universe. Surely a little conspiracy was far, far less improbable than the universe really working like that. But it was also a technique of rationality to notice when you were confused. To stop and say: wait a minute, that feels a little off, my understanding of the world didn’t predict for that to happen. Even if Harry tried to explain the day’s events by sudden insanity or unmotivated conspiracies, that didn’t put everything back to normal. It didn’t make the day’s events expected. It didn’t make him feel not-confused. There was no denying that something very, very, very odd was going on. Harry looked up at the sky, and began laughing. He couldn’t seem to help himself. This is the most improbable day of my life.
That looks like a really good change.