Harry Potter and the Methods of Rationality discussion thread, part 19, chapter 88-89

Vaniver

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 88-89. The previous thread has passed 500 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.

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Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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

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Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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

Re Marauders' Map: Quirrell pretty obviously has it. He obliviated the Weasley twins and took it. This is just the smart thing for him to do.

Note how he's burning straight through to the melee with the troll at the end of Ch. 89 - so he knows exactly where and in what direction Harry and Hermione are. This could also be because of the psychic link, but it also increases the probability he has the map.

Re Marauders' Map: Quirrell pretty obviously has it. He obliviated the Weasley twins and took it. This is just the smart thing for him to do.

Alternative hypothesis: this is one of several things done by a time traveller creating a consistent time loop. If they had the map, it would have shown Hermione in two places, or else not where she was being attacked. In this scenario, the twins were temporarily obliviated about the map, just so they wouldn't use it. But they still have the map.

The disappearance of the map is actually one of the few clues that ... (read more)

2Qiaochu_Yuan13y

You don't think Dumbledore would've obliviated the Weasley twins after using the map to find Voldemort? That would also have been the smart thing for him to do.

1CAE_Jones13y

Most likely. What I don't remember is whether or not Dumbledore ever gave it back to Fred and George; he presumably did if Quirrel stole it, since I doubt he would have had an easy time getting it from Dumbledore unnoticed. And if we didn't get confirmation that Dumbledore returned it, I suppose this might fuel "Dumbledore did it" theories. Most of my probability mass goes to Quirrel, though.