gjm comments on Harry Potter and the Methods of Rationality discussion thread, part 20, chapter 90 - Less Wrong

9 Post author: palladias 02 July 2013 02:13AM

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Comment author: Sherincall 03 July 2013 02:27:45AM 1 point [-]

I don't think Tom Riddle would show up on the map, as Dumbledore drew a circle around Quirrell and presented him to the Hogwarts Security System as "The Defense Professor". I'm guessing the map just taps into that system, so that is all they'll see. It could be the constant one, as all the others show up by name. but I'm not sure they'd make a fuss about that.

As for the intermittent, I'm guessing it's Harry when he wears the Cloak - It is explicitly said that it doesn't just turn you invisible like other cloaks, but hides you completely (except for the eye, apparently).

My other candidate for the intermittent one is Time Turned people, but since several students have Time Turners I'm guessing the twins would figure it out eventually. More likely, it just shows the 'current' version of the person.

...Actually, if that were the case, the map could be used to figure out which of the copies isn't time turned. Not sure what you'd do with that info, though.

Comment author: gjm 03 July 2013 09:08:37AM 1 point [-]

As for the intermittent, I'm guessing it's Harry when he wears the Cloak

If the Weasley twins noticed Harry appearing and disappearing, they wouldn't be calling that "[the] intermittent one", they'd be calling it "Harry" or "Potter" or something. No?

Comment author: Sherincall 03 July 2013 09:31:35AM 0 points [-]

True.

Also, I assume if they saw Tom Riddle or Salazar Slytherin or some other name they consider utterly evil, they'd tell Dumbledore immediately, rather than dismiss it as a bug. Even if they've never heard of Pascal's Mugging, that's just the sane thing to do.

Comment author: robryk 03 July 2013 09:42:35AM 5 points [-]

Do they know who Tom Riddle is/was? I don't remember why they should and in canon it at least isn't common knowledge among students (Ginny didn't recognize the name of the person in the diary).

Comment author: Sherincall 03 July 2013 01:55:18PM *  5 points [-]

You are right. I'm updating in favor of "Tom Riddle" showing on the map. Still not convinced because when Dumbledore says "Show me Tom Riddle" the twins don't go "Hey, that's the guy that keeps popping up!". That might have happened off screen, but we don't see any evidence that it did.

EDIT: I have re-read that part, and Dumbledore waits until he is alone in the room to say "Find Tom Riddle".

On the other hand, I admire the poetry where having a taboo on the name and story of Voldemort ultimately dooms you, just because you didn't want to remember and talk about the bad things. Harry even talks about this in one of the early chapters, I believe.

Comment author: gjm 03 July 2013 11:14:48AM *  3 points [-]

I agree with robryk: they've probably never heard of Tom Riddle. And I fear that if they saw SS's name their reaction would as likely be "hey, cool!" as "OK, let's go and talk to the headmaster".

[EDITED to add: hi, downvoter(s). If you'd like to tell me what you think I did wrong, I can probably try to do it less in future.]

Comment author: fubarobfusco 03 July 2013 09:45:28PM -2 points [-]

Wouldn't Tom Riddle have been at school around the same time as the Weasley twins' grandparents?

Comment author: Velorien 03 July 2013 09:58:31PM 3 points [-]

But why would they know the names of people in the school at the same time as their grandparents?

Comment author: gjm 03 July 2013 10:21:13PM 3 points [-]

And, even if they did, they wouldn't know that Riddle = Voldemort. At least, in canon I think Dumbledore or someone says in so many words that scarcely anyone ever connected the two.