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Macaulay comments on Harry Potter and the Methods of Rationality discussion thread, March 2015, chapter 116 - Less Wrong Discussion

4 Post author: Gondolinian 04 March 2015 08:11PM

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Comment author: Macaulay 04 March 2015 08:36:06PM *  24 points [-]

"Harry, let me verify that your Time-Turner hasn't been used," said Professor McGonagall.

"LOOK OVER THERE!" Harry screamed, already sprinting for the door.

Comment author: Duncan 04 March 2015 09:16:21PM 6 points [-]

A story for the masses is necessary and this doesn't appear to be a bad stab at one. Harry can always bring trusted others on board by telling them what actually happened. He might have actually done that already and this is their plan. How much time did Harry have to do stuff before needing to show up anyhow (40m? 50m?)? Also, Prof. McGonagall is terrible at faking anything so telling her the truth before this seems like a bad idea.

Comment author: cousin_it 04 March 2015 09:06:11PM *  3 points [-]

Also, won't anyone go back with a time-turner to check Harry's version of events?

Also, won't Snape know?

Comment author: kilobug 04 March 2015 09:21:36PM 7 points [-]

It seems that death eaters have "anti-time-looping wards" (chap 94), we don't know exactly how they work, nor if they were used in the graveyard, but it could very well be that no time-traveler can check the events that happened on the graveyard.

Comment author: MathiasZaman 04 March 2015 09:27:19PM *  4 points [-]

They were used. Voldemort mentions not completely trusting them.

Edit:

Quote from chapter 113:

I myself will guard this place until six hours have passed, for I do not fully trust the wards I have set; and four of you shall search the surroundings for signs of anything noteworthy.

Comment author: Sheaman3773 04 March 2015 09:16:09PM 3 points [-]

Would you risk going back to a live LV just to check it out? Take the risk that Harry didn't notice some annoying bystander get dispatched, or just didn't mention it? A lot of those revelations only came out when the subject came up, after all. Using a Pensieve would be much safer.

You assume Snape isn't one of the headless minions on the ground...

Comment author: cousin_it 05 March 2015 12:08:47PM 2 points [-]

Just watch from a distance, using a telescope.

Comment author: Astazha 04 March 2015 10:56:41PM 2 points [-]

Snape isn't, because he can't apparate from Hogwarts. Amusingly, Snape may interpret his exclusion from the mass sacrifice as a deliberate "kindness" from the Dark Lord.

Comment author: DanArmak 04 March 2015 09:14:25PM *  1 point [-]

I assume Harry will have to tell part, though maybe not all, of the truth to the remaining members of the Order of the Phoenix.

Comment author: Val 06 March 2015 07:56:41PM 0 points [-]

Didn't Snape die?

Comment author: kilobug 04 March 2015 08:57:51PM 6 points [-]

I think there is a very good chance that McGonagall is worried enough about Hermione, about Dumbledore, ... and won't check Harry's Time-Turner. She's not much into multilevel plots, she's smart, but too honest to live in constant suspicion.

Like she didn't think much about the consequences at the "war level" when she offered the fealty oath to Hermione back then in the Wizengamot.

She sees Harry in pain and traumatized, and she sees the immediate chaos, it wouldn't be very "in character" for her to suddenly suspect Harry and probe him like that.

It could happen because she learned to not follow her "role" anymore, but it still doesn't seem the most likely thing for her to do.

Moody or some aurors on the other hand...

Comment author: TobyBartels 05 March 2015 12:27:17AM 2 points [-]

I think that McGonagall has learnt enough to be suspicious of Harry, but she's still more circumspect than to call him on it in front of the whole school. Maybe she'll check up a bit later, and maybe in private Harry will be happy to tell her the truth anyway, with appropriate precautions. On the other hand, if he's decided not to tell her, then he'll arrange not to be found until it's too late. (When is it too late to check if a time turner has been used?)

Comment author: shminux 04 March 2015 09:32:41PM 2 points [-]
Comment author: matheist 05 March 2015 02:24:26AM 2 points [-]

Harry can just claim to have already used it that day for an innocuous purpose, like studying or something. Sure, McGonagall could accuse him of stupidity because that leaves him unprepared for an emergency, but pleading guilty to stupidity is easy. (Well, easier, anyway.)

Comment author: shminux 04 March 2015 09:02:47PM 2 points [-]

When does TT reset to unused? At midnight?

Comment author: TylerJay 05 March 2015 08:10:20AM 2 points [-]

Unclear. Either midnight or as soon as last 24 hours contain less than 6 hours of looped time. I've been wondering this as well. I think I remember something being said like "No combination of time-turners could let you fit more than 30 hours into a day" but I don't know if that really helps...

Comment author: TobyBartels 05 March 2015 11:27:10PM 0 points [-]

Where is that written? I well remember that no chain of time turners can send information (at least information comprehensible by humans) back more than 6 hours, but that still allows one to add those 6 hours more than once a day, especially with multiple time turners.

Comment author: TylerJay 06 March 2015 12:01:31AM *  1 point [-]

Ch 17:

Harry:

"...Sorry to ask but I was wondering, is it possible to get more than six hours if you use more than one Time-Turner? Because it's pretty impressive if you're doing all that on just thirty hours a day."

Dumbledore:

"I'm afraid Time doesn't like being stretched out too much," said Dumbledore after the slight pause, "and yet we ourselves seem to be a little too large for it, and so it's a constant struggle to fit our lives into Time."

Comment author: TobyBartels 06 March 2015 06:23:20AM 1 point [-]

Thanks, but that's not actually definitive. Somewhere on Reddit is a list of information about time turners, and while this was quoted there, nothing else suggested that you couldn't go back 6 hours, wait 12 hours, then go back 6 hours with a new time turner.

But there was a clear statement by Eliezer that you couldn't go back 6 hours, wait only 6 hours, and then go back again. This imposes a hard limit of 48 hours per day.

Comment author: TylerJay 07 March 2015 03:21:26AM 0 points [-]

Nope, you're right. It's not definitive. In my original comment, I just said I thought I remembered reading somewhere that you couldn't fit >30 hrs into a day, and the passage I quoted is where I got that impression. If /r/hpmor thinks it's possible that TTs let you fit up to 48 hrs in a day, then I have high confidence there wasn't anything explicitly forbidding it in the story.

Comment author: TobyBartels 08 March 2015 08:56:21PM 0 points [-]

Just to be clear, the Reddit thread didn't say that you can fit 48 hours in a day, it just didn't say that you couldn't. And it probably had that Dumbledore quotation too, it's just me saying that we can't know for sure what that quote means.

Comment author: TylerJay 09 March 2015 07:22:53AM 0 points [-]

Haha, yup, I gotcha. Thanks for the info.