The idea of Time itself designating some people and events as Important and composing vague poetry about them is incompatible with a universe that runs on simple physical laws and is obviously nonsense.
What makes you so sure the HPMoR universe is reductionist and/or runs on simple physical laws?
HPMoR is a rationalist story, not necessary a reductionist story. A true rationalist must be willing to update against even reductionism, if the evidence leads there.
It's the fundamental simplicity and regularity of the universe that allows the basic tools of rationality to work at all. Reality is laced together too tightly to permit a world where 'muggle science' can function but Occam's Razor isn't reliable. Eliezer couldn't teach his brand of rationality with a universe that ran on genre tropes instead of particle physics.
ETA: Okay, he could try, but it would be a mistake. And I know that he knows this, because I learned it from him.
The new thread, discussion 13, is here.
This is a new thread to discuss Eliezer Yudkowsky's Harry Potter and the Methods of Rationality and anything related to it. With three chapters recently the previous thread has very quickly reached 1000 comments. The latest chapter as of 25th March 2012 is Ch 80.
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: one, two, three, four, five, six, seven, eight, nine, ten, eleven.
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: