mare-of-night comments on Harry Potter and the Methods of Rationality discussion thread, part 21, chapters 91 & 92 - Less Wrong

4 Post author: NancyLebovitz 04 July 2013 11:49AM

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Comment author: mare-of-night 05 July 2013 04:18:57PM 10 points [-]

Alternately, he might want people to believe he has transfigured his father's rock again, but not be actually planning to keep it transfigured, because he wants to carry the Hermione diamond and let people think it is the rock.

Comment author: Tripitaka 05 July 2013 06:35:31PM 0 points [-]

Any thoughts on the changing/cooling issue? That seems to really get brushed off. Is a perfect diamond supposed to be absolutely stable at room temperature?

Comment author: Plasmon 05 July 2013 06:43:14PM 3 points [-]

It isn't

Contrary to the popular belief that "diamonds are forever", they are in fact thermodynamically unstable under normal conditions and transform into graphite.[13] However, due to a high activation energy barrier, the transition into graphite is so extremely slow at room temperature as to be unnoticeable.

Comment author: Decius 06 July 2013 03:06:38AM 0 points [-]

What is the most stable thing at room temperature, with magical assistance?

Comment author: Velorien 06 July 2013 01:23:46PM 0 points [-]

Arguably a troll - it's constantly transfiguring itself back into the same form.

Comment author: Decius 06 July 2013 10:17:29PM 2 points [-]

So transfigure Hermione's brain into a troll until you figure out how to save her.

Twitch.

Comment author: TobyBartels 07 July 2013 01:42:24AM 1 point [-]

I don't think that a troll's transfiguration is supposed be stable at that level of detail.

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