BTW, we're told in canon there are other schools for wizards and witches, but everyone famous seems to have gone to Hogwarts. Why? There isn't even an entrance exam, and most of the teachers are incompetent; so it can't be either their selectiveness or the quality of their education.

How can we estimate the number of witches and wizards in the world from canon? And, also, the number of students at Hogwarts?

Most of the teachers? Binns and Trelawney certainly, Snape, but arguably he's more unprofessional and unpleasant than incompetent. Often the defense professor is incompetent, I suppose. Canon!Harry had Lupin, Snape and fake Moody for competent defense professors and Quirrel, Lockhart and Umbridge for incompetent ones. We have no reason to doubt the teaching ability of Mcgonagall, Flitwick, Sprout, Sinistra, Vector or Babbling. Burbage's Muggle studies course is often a subject of ridicule in fanfiction, but that might be a result of the (inter?)-national c... (read more)

5Oscar_Cunningham9yJ. K. Rowling was never too bothered with the numbers (by her own admission). In particular the total number of students in Hogwarts is portrayed as much greater than the number of students per year multiplied by seven, and the wizarding world is absurdly small but still far too large to account for the fact that there appears to be only one school in Britain.

Harry Potter and the Methods of Rationality discussion thread, part 9

by Oscar_Cunningham 1 min read9th Sep 2011725 comments


(The HPMOR discussion thread after this one is here.)

The previous thread is over the 500-comment threshold, so let's start a new Harry Potter and the Methods of Rationality discussion thread.  This is the place to discuss Eliezer Yudkowsky's Harry Potter fanfic and anything related to it. The latest chapter as of 09/09/2011 is Ch. 77.

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.  The author page is the central location for information about updates and links to HPMOR-related goodies, 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.