gjm comments on Harry Potter and the Methods of Rationality discussion thread, February 2015, chapter 112 - Less Wrong

4 Post author: Gondolinian 25 February 2015 09:00PM

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Comment author: gjm 26 February 2015 05:45:57PM 10 points [-]

I remark that

  • it has recently been pointed out that Harry's Patronus v2.0 is powered by his life as well as his magic and that this (at least according to Voldemort, so obviously it's true) makes it more powerful than it could have been if powered by just his magic
  • even the small fraction of his life he was able to give up on the spur of the moment was enough to restore Hermione's life and magic, which even Voldemort was unable to do on his own
  • in canon, central to Harry's ultimate victory is his willingness to die

and suggest that if your prediction is correct, what powers his absurdly powerful spell may be the sacrifice of the whole of his life and magic.

(Hmm. The power of a potion in HPMOR is determined by what went into making its ingredients, a curious and probably important discovery that hasn't been applied yet for anything other than winning playfights. What went into making Harry was, among other things, the power and ingenuity -- and in some sense even the life -- of Lord Voldemort. Maaaaybe.)

Comment author: gjm 27 February 2015 01:14:13AM 1 point [-]

One further remark on that last paragraph. "A potion spends that which is invested in the creation of its ingredients". What counts as creation? Ultimately, pretty much everything on earth is made of the remnants of supernovas...

Comment author: fezziwig 27 February 2015 02:26:25AM 2 points [-]

I think that must be the role of the stirring and heating requirements: to control which aspects of the thing's creation, and how much of them, are infused into the potion. There may well be a way to call forth solar fusion from common iron. But of course we know that no one has ever done it.

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