If there's a disturbance which Dumbledore suspects is a distraction, why did he send only Snape, rather than several aurors/coming himself?
Hypothesis: the situation is a trap for Voldemort. The corridor itself is blatantly a trap - it's easy to enter, but we know from Fred and George that it's full of invisible wards. Voldemort wouldn't risk confronting Dumbledore, and an unguarded corridor would be too suspicious, but Snape is just right in terms of difficulty level (and also has the option of going "my lord, you have returned!", surviving an encounter which would be fatal for anyone else, and possibly sneaking off to call Dumbledore).
The flaw with this is that the trap is really obvious, and Voldemort's intelligence is known to be very high, so it's implausible that he would enter the corridor at all unless he was absolutely certain of being able to steal the Stone despite the wards, and before Dumbledore could return.
New chapter!
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 104.
There is 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.)
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: