The new discussion thread (part 15) is here.
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 82. The previous thread passed 1000 comments as of the time of this writing, and so has long passed 500. Comment in the 13th thread until you read chapter 82.
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.
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Eliezer Yudkowsky which is not supposed to be publicly available (which includes public statements by Eliezer that have been retracted).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.
In canon, of course, we know that a Killing Curse hitting an inanimate object rater than its target results in a release of kinetic energy. In which case, both the scar and the burning are, in fact, reasonably probable results, given the prior that Harry couldn't be killed by the curse. The curse hit Harry, couldn't kill him any more than it could kill an inanimate object, and was converted into kinetic energy just like if it hit an inanimate object. The scar is the result of part of the kinetic energy being transferred to Harry through a not-perfect-but-adequate-to-save-his-life protection, while the rest bounced and hit Voldemort (and the cottage) with a lot of kinetic energy, causing blast and burn.
As HPMOR has (I believe) no examples the Killing Curse hitting inanimate objects, and we do not have enough data on magic theory that would allow us to construct an independent theory as to what a Killing Curse should do if it rebounded, how could we possibly construct a prior that would make the scar and blast improbable in HPMOR?
Your other points work, of course.
This is the first actually plausible-sounding explanation for this I've ever heard.