FiftyTwo comments on Harry Potter and the Methods of Rationality discussion thread, part 17, chapter 86 - Less Wrong

9 Post author: Alsadius 17 December 2012 07:19AM

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Comment author: FiftyTwo 17 December 2012 11:05:41PM 10 points [-]

Given Moody's CONSTANT VIGILANCE I wouldn't be surprised at him randomly dropping false information into conversations, especially with suspiciously skilled young wizards...

Comment author: J_Taylor 19 December 2012 03:45:40AM *  14 points [-]

Moody drops all sorts of information, true and false, in his conversations and, when meeting that person again, will see if they recall it.

This is one of the ways he tests for Polyjuice users, animagi, and evil twins.

Comment author: wedrifid 19 December 2012 07:58:06AM 7 points [-]

Moody drops all sorts of information, true and false, in his conversations and, when meeting that person again, will see if they recall it.

This is one of the ways he tests for Polyjuice users, animagi, and evil twins.

I hope he also tests for information that is true that he hasn't actually given and wouldn't expect them to have.

Comment author: Eugine_Nier 20 December 2012 02:56:05AM 2 points [-]

This is also a great technique for mapping out social networks, conspiracies, etc.

Comment author: DanArmak 21 December 2012 08:24:43PM -1 points [-]

evil twins.

In the Morverse, twins share a telepathic bond and are sort of the same person. Either both twins are good or both are evil.

Comment author: pedanterrific 22 December 2012 12:52:11AM 2 points [-]

Almost certain they aren't telepathic, they're just the same person. You don't have to be perfect rationalists to always agree, if you're irrational in exactly the same way, and have exactly the same information and priors.

Comment author: gwern 22 December 2012 01:04:06AM 1 point [-]

/not sure if DanArmak and pedanterrific are serious or just joking

Comment author: pedanterrific 22 December 2012 01:20:19AM *  1 point [-]

You don't get the Aumann references in all the Twins' POV sections? I'll go dig up some examples, then.

Edit: Here we are:

The brothers walked on and on and on, mostly in silence. The Weasley twins talked to each other when they were thinking through new pranks, or when one of them knew something the other didn't. Otherwise there wasn't much point. If they already knew the same information, they tended to think the same thoughts and make the same decisions.

(Back in the old days, whenever magical identical twins were born, it had been the custom to kill one of them after birth.)

In time, Fred and George clambered out into a dusty cellar, strewn with barrels and racks of strange ingredients.

Fred and George waited. It wouldn't have been polite to do anything else.

Before too long a thin old man in black pajamas clambered down the steps that led into the cellar, yawning. "Hello, boys," said Ambrosius Flume. "I wasn't expecting you tonight. Out of stock already?"

Fred and George decided that Fred would speak.

"Not exactly, Mr. Flume," said Fred.

Comment author: gwern 22 December 2012 01:34:58AM 1 point [-]

I got the Aumann references, I was questioning the claim that they are telepathic or the same person (both of which possibilities are damaged by that quote), or whether it was just a joke on the Aumanning.

(On a side note, that reminds me that we still haven't found out how the Skeeter prank was done. After pondering it and imagining myself to be Bruce Schneier, I figure it was an attack on the printer as the weakest link, possibly polyjuicing or otherwise impersonating the editor.)

Comment author: pedanterrific 22 December 2012 01:41:27AM *  1 point [-]

Oh well yes, the "same person" bit was a joking reference to that. I thought I made that clear with the second sentence. Oops.

And I always assumed, in the absence of evidence otherwise, that it was some mind manipulation of Rita and/or her editor- False Memory Charms, Confundus or Imperius- perpetrated by either Quirrell or Dumbledore.

Comment author: gjm 17 December 2012 11:56:53PM 9 points [-]

On the other hand, given his preference for not losing the war against Voldemort he might perhaps avoid dropping too much random false information on a suspiciously skilled young wizard who is credibly alleged to be vital for winning that war.

Comment author: MugaSofer 18 December 2012 07:57:12PM 1 point [-]

On the other hand, wouldn't most people already know something like that? It seems like a pretty baldfaced lie, crying out for contradiction.