Right, if you start from decision theory then the prior is high and if you start from naive realism then the prior is really low, but I mean, the likelihood ratio started out high the very moment he realized he was abnormally intelligent and he had three last names, and ever since then it just keeps getting bigger, and bigger, and bigger, and bigger, and bigger, and bigger, and...
He lost in math contests, but I think he thought himself smarter than almost all other humans along the dimensions that actually mattered. He explicitly has a messianic complex.
if you start from decision theory then the prior is high
I feel obligated to explicitly note that literally interpreted this is a straightforward abuse of the words "decision theory" and "prior" even if the concept I'm getting at isn't too abusive.
(The HPMOR discussion thread after this one is here.)
The previous thread is over the 500-comment threshold, so let's start a new Harry Potter and the Methods of Rationality discussion thread. This is the place to discuss Eliezer Yudkowsky's Harry Potter fanfic and anything related to it. The latest chapter as of 09/09/2011 is Ch. 77.
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. The fanfiction.net author page is the central location for information about updates and links to HPMOR-related goodies, and AdeleneDawner has kept an archive of Author's Notes.
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: