Pretty sure the Atlantians created the Source. There's probably a dyson sphere in our star cluster providing all the power needed for magic.
If so, then it's too bad that the Pioneer Horcrux didn't manage to make it outside of that sphere before now. Voldemort might have been in for a terrible shock if it had suddenly stopped working!
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 114, and also, as a special case due to the exceptionally close posting times, chapter 115.
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.)