Vladimir_Nesov comments on Harry Potter and the Methods of Rationality discussion thread, part 3 - Less Wrong

5 Post author: Unnamed 30 August 2010 05:37AM

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Comment author: Vladimir_Nesov 25 September 2010 03:50:51PM 5 points [-]

If snakes are sentient, they can't work as Patronus 1.0.

Comment author: Baughn 25 September 2010 06:00:38PM 12 points [-]

If. I don't think they are; it would have been obvious to some scientist at one point or another, not to mention anyone who lives in close contact with them.

It seems more plausible to me that their apparent intelligence is another product of magic; that when you're talking to a snake, you're actually talking to a magic-induced AI of some kind that will, if you asked it to do something, control the snake afterwards to suit your purposes.

The laws of physics here are already AI-complete, so it doesn't seem like a large leap to me.

Comment author: Document 27 September 2010 10:02:26PM 8 points [-]

Possibly the important thing is whether Draco thinks of them as being sentient (sapient) as he's casting the charm.

Comment author: Vladimir_Nesov 28 September 2010 05:43:53AM *  3 points [-]

Yes, I originally thought of it as the most plausible explanation. But then, Harry's remark must also make Draco's Patronus ineffective, just as explanation of Patronus 2.0 would, which very likely isn't the case.

Comment author: TobyBartels 28 September 2010 08:23:53AM 4 points [-]

It might yet make it ineffective, but only if Draco grasps the implications. Harry might begin the next chapter by deciding to shut up and not explain to Draco why it matters to him that snakes have a language. (It obviously doesn't matter to Draco, who I don't think has fully accepted that Muggles are sapient, despite their obvious language.)

Comment author: jimrandomh 25 September 2010 04:35:36PM 3 points [-]

...Unless there's something very weird about their psychology. Which, given that they're snakes, seems entirely plausible.

Comment author: AdeleneDawner 25 September 2010 04:14:48PM 7 points [-]

Actually, I'm pretty sure snakes are sentient. They're not sapient, though, as far as we can tell.

(Yes, I'm aware that the error is in the original text.)

Comment author: gwern 25 September 2010 05:55:48PM 5 points [-]

I have seen so many people use them interchangeably, and I think I've even seen dictionaries disagree about which is which, that I've pretty much given up on the words 'sentient' and 'sapient'.

Comment author: TobyBartels 28 September 2010 08:32:07AM 5 points [-]

Even though people use the words inconsistently, those people who distinguish them at all do so consistently, and you can use cognates to remember which is which: ‘sense’ = ‘feel’, so ‘sentient’ = ‘feeling’; ‘Homo sapiens’ = ‘wise man’, so ‘sapient’ = ‘thinking’ (more literally ‘discerning’ in the Latin).

I usually take it for granted that snakes are sentient but not sapient, although I don't really know enough about snakes to be sure of either.

But there's another idea, neither of which these words quite captures, that seems to be what really matters to Harry: self-awareness (‘anything that lives and thinks and knows itself’). A snake may sense its prey, but does it sense itself? It may discern that its prey is food, but does it discern that its self is a self?

Comment author: Vladimir_Nesov 25 September 2010 04:33:52PM *  12 points [-]

Please don't allow arguments about definitions be presented as arguments about substance, as objecting to something previously said. Distinguish them by making it clear that your observation is on a separate and unrelated topic of English language, and thus doesn't constitute an irrational argument.

Comment author: AdeleneDawner 25 September 2010 04:49:43PM 4 points [-]

Sorry, I thought it would be obvious enough what I was objecting to.

Comment author: Vladimir_Nesov 25 September 2010 05:04:09PM 5 points [-]

It is, I just think it's a healthy debiasing style to keep the intentions explicit.

Comment author: komponisto 25 September 2010 05:53:14PM 2 points [-]

Upvoted. This should be on the advice-to-new-users page, if it isn't already.

Comment author: orthonormal 25 September 2010 04:52:54PM 2 points [-]

Perhaps they're just not conscious of mortality?

Comment author: Vladimir_Nesov 25 September 2010 05:06:38PM 3 points [-]

Wouldn't that be convenient? What's special about mortality making it a plausible gap in the mind?

Comment author: orthonormal 25 September 2010 05:54:27PM 11 points [-]

You know what? A WIZARD DID IT.

Comment author: Vladimir_Nesov 25 September 2010 05:57:43PM *  1 point [-]

Giant cheesecake fallacy!

Comment author: NihilCredo 25 September 2010 06:28:53PM *  2 points [-]

It actually makes quite a bit of sense to be unaware / indifferent to death for a family of species that do not take care of their offspring (with a few exceptions, eg. pythons, which might also never appear as Patroni).

Comment author: Vladimir_Nesov 25 September 2010 06:48:14PM 3 points [-]

Personal survival is a basic drive in any case, and being aware of something doesn't require caring about it, only the potential for instrumental worth.

Comment author: Baughn 02 October 2010 12:26:11PM 0 points [-]

Never mind the snakes, what about the birds?