Not a spoiler, but rot13'd for explaining the joke:

"All of you in this room... have received grades of at least Acceptable. Neville Longbottom... who took this test in the Longbottom home... received a grade of Outstanding. But the other student who is not here... has had a Dreadful grade entered on her record... for failing the only important test... that was given her this year. I would have marked her even lower... but that would have been in poor taste."

Gur bayl tenqr ybjre guna Qernqshy vf "Gebyy".

Somewhat off-topic, and I obviously had an advantage from already knowing what the joke was, but I managed to decoe your rot13 word-for-word by counting the number of letters in each word and identifying a few matching letters.

I was... irrationally excited when I managed to do so.

Harry Potter and the Methods of Rationality discussion thread, January 2015, chapter 103

by b_sen 1 min read29th Jan 2015174 comments


New chapter, and the end is now in sight!

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 103.

There is a site dedicated to the story at, 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

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Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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.