If I understand correctly, you only suffer from transfiguring yourself or parts of yourself after returning to your original form, after the transfiguration stops being sustained and wears off.
And if you Transfigure yourself into an adult bodily form, then, when the Transfiguration wears off, you will die.
Bolding mine.
The Stone solves that. Assuming Harry grabbed it, which seems like a no brainer but I don't think was ever explicitely mentioned that he did. EDIT: Aha, it was edited in just now.
Whoops, that's, right. Thanks.
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.)