I doubt we can do justice to Atlantis in five chapters of plot; the last few chapters only resolved as much as they did because Eliezer fired almost all of the available Chekhov's guns. We might get some hints, a sketch of a solution, but we're not going to see it in detail.
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 116.
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.)