If information cannot travel back more than six hours
This does seem to be a constraint that exclusively affects the time-turners. Otherwise prophesies wouldn't be possible. It also seems like it's an artificial rule rather than a deep law of magic because after the Stanford Prison experiment, Bones tells Dumbledore that she has information from four hours in the future and asks whether he'd like to know it. That there is relevant information from four hours in the future is information from the future - she would not have said that if it were otherwise, so it seems there must be exemptions of that kind.
Alternative hypothesis: prophesies are jive, and Eliezer didn't think of the other thing.
Bones tells Dumbledore that she has information from four hours in the future and asks whether he'd like to know it. That there is relevant information from four hours in the future is information from the future - she would not have said that if it were otherwise, so it seems there must be exemptions of that kind.
That's information to a careful logical thinker. There's a lot of evidence that magic to a large extent acts as a naive person might expect reality to act. Broomsticks and the bag of holding are both examples of this.
The next discussion thread 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 85. The previous thread has long passed 500 comments. Comment in the 15th thread until you read chapter 85.
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.
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