I think Harry should start requiring unbreakable vows for people using transfiguration. He also should hurry with colonizing other planets and moons, in case someone does transfigure something they shouldn't.
Transfiguration will get more powerful once they have some interesting material science classes. Having mass limits isn't much of a problem when you start transfiguring stuff into super-light nanotube-reinforced titanium nantorusses.
Honestly I think you just have to throw up your hands at the Unbreakable Vow. Nothing about Wizarding society makes the slightest bit of sense once you realize that they have the Unbreakable Vow. It wouldn't look like it does.
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 119.
Plans for next chapter release:
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.)