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

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

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Comment author: orielwen 11 September 2011 08:37:53AM 2 points [-]

But we know Hermione didn't send herself a signal. Anything simple and quick enough to do unobtrusively (like biting her lip) would have been instantly noticeable to her on the second iteration.

Comment author: DaveX 12 September 2011 06:18:21PM 1 point [-]

We know Hermione didn't send herself a signal she could notice instantly on a second iteration. As of ch76, we do not know if she sent herself a signal not instantly noticable.

You might not want to use a signal that could be detected by yourself during an obliviation event in order to make sure the signal isn't telegraphed to the obliviator.

Harry might think that if one needed to signal obliviation, it might be best to detect it safely in the future, unless he thought he could make use of an instantly detectable signal and a tactical response would be worth risking interception. In Ch. 6 he risked interception of the signal (he told the potential obliviator McGonnagal about it) in order to forestall obliviation. I doubt that that tactic would work with Mr. Hat and Cloak/Ms. Veil/...