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

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

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Comment author: GuySrinivasan 02 July 2013 02:07:14PM 2 points [-]

Dumbledore gave Harry the rock. Relevant? Or Harry just taking advantage of his resources?

Comment author: Coscott 02 July 2013 02:39:30PM 11 points [-]

I think that large rocks transfigured into something small are in general useful, and Dumbledore knew this.

Comment author: FiftyTwo 02 July 2013 04:15:24PM 24 points [-]

There's a mention of him being one of the few people who have used transfiguration in combat and lived, I imagine he has a set of techniques like this of which carrying a transfigured rock is the simplest.

Comment author: Ritalin 02 July 2013 06:37:18PM 7 points [-]

That's... actually pretty brilliant.

Comment author: ikrase 02 July 2013 09:52:56PM 0 points [-]

I have a variety of ideas about transfiguration grenades and things.

Comment author: Alsadius 03 July 2013 04:41:06AM 2 points [-]

Professor McGonagall leaned forwards, her face very hard. "You will absolutely never under any circumstances Transfigure anything into a liquid or a gas. No water, no air. Nothing like water, nothing like air. Even if it is not meant to drink. Liquid evaporates, little bits and pieces of it get into the air. You will not Transfigure anything that is to be burned. It will make smoke and someone could breathe that smoke! You will never Transfigure anything that could conceivably go inside anyone's body by any means.

Comment author: Eugine_Nier 04 July 2013 12:30:14AM 0 points [-]

It's always bothered me that we generally see dark wizards doing this.

Comment author: Alsadius 04 July 2013 03:40:56AM 1 point [-]

It's a safety thing. If you're trying to kill people, you don't care much about their safety.

Comment author: Eugine_Nier 04 July 2013 04:42:31AM 0 points [-]

Sorry, I meant dark wizards abusing transfiguration.

Comment author: Velorien 04 July 2013 12:04:51PM 0 points [-]

Would you mind giving a few examples? None spring to mind.

Comment author: Eugine_Nier 04 July 2013 05:48:23PM 0 points [-]

That's my point. We don't see dark wizards abusing transfiguration even though it would make sense for them to.

Comment author: ikrase 03 July 2013 06:30:19PM 0 points [-]

Actually, should be workable with no fluids.

Comment author: Alsadius 04 July 2013 03:37:00AM 1 point [-]

A grenade which does not produce gas? Which does not create anything that enters a person's body? What exactly is your mechanism of action here?

Comment author: ikrase 04 July 2013 04:03:01AM 0 points [-]

Well, it would produce shrapnel...

I'm a little suprised that when Quirrel was having Harry come up with creative improvised weapons, that Harry did not mention the deliberate use of dangerous transfigurations as a chemical weapon.

The trick is to transfigure a (high-strength metal) shell containing an extremely compressed solid or nonvolatile liquid. The stored energy is in the elastic force.

Specifically, I imagine the following:

  1. Build a compressing machine (can be transfigured, in which case you get to use improbably high tech components.)
  2. Assemble the grenades using natural mundane components.
  3. Pressurize.
  4. Transfigure grenade, but not the machine, into a tiny maintainable form.
  5. Store in pouch or in armored carrier in case of maintain failure.
  6. Finite Incantatem to detonate.

If you can transfigure as fast as Quirrel, you can just transfigure mundane feedstock into this sort of thing pre-charged.

Some pretty simple but custom charms would make this even better.

However, if you can partial-transfigure as fast as Quirrel (and cast the Bubble-head charm, and almost instantaneously cast wandless wordless Finite), you can probably do much better (and more efficiently) with a multilayer system of magical cybernetics (combined with whatever buffs, self-spells, potions, etc already exist), flash-transfigured Iron Man suit parts, and (for the smallest transfiguration-size per output) flash-transfigured antimatter.

I can actually imagine Harry duct-taping a small bottle of water to his wand so that he can always have a ready feedstock for transfiguration.

Comment author: Alsadius 04 July 2013 04:05:31AM 1 point [-]

Shrapnel enters the body. Now, you don't always care about transfiguration safety when you're fighting to kill, but it's still an issue.

Comment author: Intrism 04 July 2013 04:14:50AM *  3 points [-]

Hmm, speaking of shrapnel... If one were to be hit by shrapnel from an object that had been Transfigured into a smaller one, would the shrapnel explode troll-style when the Transfiguration is Finite-d? If so, this seems like an useful effect...