That doesn't make much sense. Villain watches Hermione getting closer and closer to the fatal information. Then she reaches it, and he kills her.

Why not just change the books, or steal them? "I'll kill anyone who tries to read this" is like the worst imaginable way to keep information in a book from being popularly known.

Changing the books stealing them or altering library records may be harder than it seems. The day of Hermiones death QQ went to the library and added a number of additional wards, nominally around the restricted section, but who know what else they cover.

1Viliam_Bur5yMaybe the books are so boring that almost no one wants to read them. Hermione was an unlikely exception, and under usual circumstances no one else would bother reading the books. On the other hand, the library might have magical protection against damaging books.

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Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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