Harry Potter and the Methods of Rationality discussion thread, part 25, chapter 96

NancyLebovitz

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 96. The previous thread is at almost 300 comments.

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, 16, 17, 18, 19, 20, 21, 22, 23, 24, .

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Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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

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, 16, 17, 18, 19, 20, 21, 22, 23, 24, .

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Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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

Fair points, though a failed Patronus Charm wouldn't always produce a Dementor if it only happened with a certain subset of wrong kinds of thought. I'm not sure why anyone might be making an attempt to cast a Patronus with a negative thought, but maybe if they use a happy thought that is at its core selfish or harmful to others? In which case, learning to cast the charm would tend to produce a new Dementor every so often as people experiment with finding a suitable memory or thought to use.

As for your last point, I suppose it would only make sense if the Dementors aren't created at the place in which the failed casting occurs. This might be an explanation of why the Dementors seem to be concentrated at Azkaban... fail to cast a Patronus and something produces a Dementor there. Although I don't think this is right because it seems too complicated, and I seem to recall something saying that wizards gathered/herded the Dementors to their nest in Azkaban.

Alternatively, the initial product of the failed Patronus Charm is undetected or unrecognized and only later grows into a Dementor. But if all the Dementors are rigidly controlled by the government, you might expect them to notice new Dementors being created outside their control even if it isn't obvious what is creating them.

This might be an explanation of why the Dementors seem to be concentrated at Azkaban... fail to cast a Patronus and something produces a Dementor there. Although I don't think this is right because it seems too complicated, and I seem to recall something saying that wizards gathered/herded the Dementors to their nest in Azkaban.

There's also the fact that Azkaban is a small isolated island in the middle of a storm-swept sea. If by some accident of magical geography it happened to be the place where all Dementors naturally spawned, the probability of some... (read more)