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gwern comments on Harry Potter and the Methods of Rationality discussion thread, part 8 - Less Wrong Discussion

8 Post author: Unnamed 25 August 2011 02:17AM

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Comment author: gwern 12 April 2012 03:46:49AM 1 point [-]

How do either Black, Bellatrix, or Grindelwald pass the observation about the wards screaming on Obliviation by non-professor?

Comment author: ArisKatsaris 12 April 2012 03:50:59AM 0 points [-]

We didn't know about this restriction back then. But yeah, that restriction effectively eliminates the possibility of a non-Professor like Sirius being Hat & Cloak.

Comment author: gwern 12 April 2012 03:55:35AM 0 points [-]

Yeah. Which, as the example of Skeeter teaches us, means that we could look for a weaker link in the chain: the professors themselves. Imperius/Obliviation strategies have been discussed in the past, but Polyjuice Potion hasn't. Would that work? Dunno. Moody fooled the wards in canon, but that was probably because the fake was the only one to ever get keyed in as a Professor in the first place. Would Polyjuice let Flitwick or one of the others be replaced?