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Velorien comments on Harry Potter and the Methods of Rationality discussion thread, February 2015, chapter 104 - Less Wrong Discussion

8 Post author: b_sen 16 February 2015 01:24AM

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Comment author: Velorien 16 February 2015 11:46:12AM 5 points [-]

Magic is, in the end, zero-sum.

Doesn't Harry spend at least the first half of the story being variously shocked and outraged at how magic does not abide by the laws of thermodynamics? See Aguamenti producing water out of nothing.

Even the laws governing potions aren't really a case of equivalent exchange: the heat of the Ashwinder eggs disperses into the surrounding environment and is bestowed upon any potion made using them.

Comment author: fubarobfusco 19 February 2015 05:03:14AM -2 points [-]

Yeah, different bits of magic seem to operate on different conservation laws, it's true. And they aren't the ones of physics. But Quirrell seems to expect value to be conserved — and therefore, that accumulating value to yourself and your allies logically implies depriving others of value — whereas Harry seems to expect otherwise.