vericrat comments on Harry Potter and the Methods of Rationality discussion thread, part 19, chapter 88-89 - Less Wrong

12 Post author: Vaniver 30 June 2013 01:22AM

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Comment author: maia 01 July 2013 12:09:11PM 3 points [-]

Oh snap. I didn't even notice that problem.

There is a third possibility: Dumbledore brought in the troll to guard the Stone (or other object), as in canon, and he was the one who cast the spells to protect it. I'm unsure about this, because it seems unusually violent for Dumbledore.

Comment author: vericrat 01 July 2013 05:59:46PM 2 points [-]

Why would Dumbledore enchant the troll against sunlight if it was going to be in the third-floor corridor all along?

Comment author: gwern 01 July 2013 06:14:56PM 15 points [-]

To defend it against anyone with a sunlight-generating spell or who has some acorn potion handy.

Comment author: MugaSofer 29 July 2013 06:34:41PM -1 points [-]

In fact, isn't there such a spell used in Canon?

Comment author: gwern 29 July 2013 09:08:10PM 1 point [-]

There's 'Lumos' but it's never mentioned as a dead-useful defense against trolls so presumably isn't as good as real sunlight or a sunlight-generating spell.

Comment author: MugaSofer 29 July 2013 09:58:05PM *  -1 points [-]

No, I could swear there was an actual ... maybe in one of the movies?

EDIT: I was thinking of this