More than that, it's trivial to nullify that possibility. Just watch the battle. If you know it's happening, and you know where it is, then just use one of the many, many scrying implements we know Dumbledore has to watch the battle. The moment the troll ate her legs Dumbledore should've been there; even if he wanted Harry to save her or something he could've discreetly stabilized her, Harry had no way to notice.
Dumbledore was absent from the castle.
And he made it sound like the wards only alert him when a student has died. It's reasonable to expect them to warn ahead of time, after serious injury or something, but going by canon Dumbledore had no external alarm when Harry broke however many bones however many times on the Quidditch pitch.
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 97. The previous thread is at nearly 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, 19, 20, 21, 22, 23, 24, 25.
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: