I don't see the increased again being accounted for just by increased hours of living through time turning either.
If the argument is that too frequent time turning has a damaging effect in itself, I can't see them giving out such a potentially health damaging item to children without at least warning of that specific effect. Also, if EY is keeping the same basic timelines for Dumbledore, he is holding up better than average for his chronological age despite his time turning adventures.
Meanwhile, Quirrell explicitly talked about the advantages of ritual magic, and how it allows greater power than otherwise possible. He has greater power. He is aging rapidly. And by many indications, he is traveling host to host over time. If you could do that, the natural thing would be to use up the host and travel to a new one when you use it up, since your supply of bodies is in effect infinite, while it's a finite resource of 1 body for everyone else.
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 95. The previous thread has passed 300 comments.
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: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.
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: