gwern comments on A Story of Kings and Spies - Less Wrong

22 Post author: Joshua_Blaine 11 June 2014 11:54PM

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Comment author: Lumifer 12 June 2014 05:57:37PM *  7 points [-]

You can't prove it now, you may be able to prove it (or its absence) in a few days. If there is none, Orin just pays his 1000 coins.

The point of the bet was to properly incentivize Orin in the present.

Comment author: gwern 12 June 2014 10:51:15PM *  -1 points [-]

How do you prove it in a few days? 'Oh, no army appeared' said Orin. 'My friend must have been wrong or the date was pushed back. Still, as an honest man, I stand by our deal though it beggar me.'

Comment author: Lumifer 12 June 2014 11:52:58PM 3 points [-]

How do you prove it in a few days?

Are you asking me how the plot can play out in a fictional story? :-D

Here's one possibility -- the king's large and effective network of spies and informants will send the word that the Northern Kingdom executed a disinformation campaign against the king using a fellow named Orin...

Comment author: gwern 13 June 2014 02:25:09PM 0 points [-]

Here's one possibility

Possibility is not good enough. And in any case, my proposed defeater can be implemented by exactly two people: a volunteer and a rich benefactor, and so it is vastly more likely to be undiscovered by spies & informants than an actual attack. The king is unsure his spy network will uncover every attack, so a fortiori, he is very unsure that my proposed scheme would be detected.

Comment author: Lumifer 13 June 2014 02:36:51PM 4 points [-]

Possibility is not good enough.

Not good enough for what?

Frankly, I don't see towards which point are you driving. This is a fable about, basically, an exercise in game theory. You don't like the story? You think it misleads? If you were king you would have behaved differently?

Comment author: gwern 13 June 2014 05:49:18PM 1 point [-]

This is a fable about, basically, an exercise in game theory. You don't like the story? You think it misleads? If you were king you would have behaved differently?

I pointed out, I thought clearly, my problems in my original comment: this is not isomorphic to existential risk (as the author clearly intended it to be) and solves an easier problem badly.

Comment author: Lumifer 13 June 2014 08:39:21PM 0 points [-]

Maybe you should read it as a fable and not as a blueprint for dealing with the UFAI problem.

Comment author: gwern 15 June 2014 07:13:23PM 0 points [-]

Why? As a fable it is boring and irrelevant, and clearly OP did not intend it to be taken the way you suggest taking it.

Comment author: Joshua_Blaine 16 June 2014 07:04:08PM 1 point [-]

Gwern, I happen to agree with most of what you've said, if this were written in regards to x-risks. It is in fact irrelevant to UFAI, but was mostly an exercise in a) practicing writing, and b) working through some intuitions in regards to betting/prediction markets. I wrote it for LW because I assumed it would be enjoyed, but not really learned from (hence Discussion, not Main). A re-write would explore more thoroughly and explicitly the difference between Orin being correct, a spy, or mistaken, and how his bet changes those probabilities.

I suppose it makes an ok-ish example of "people take their money more seriously than their beliefs, and betting helps fix that" Which I think is am important lesson in general.

Comment author: gwern 16 June 2014 08:48:00PM 0 points [-]

b) working through some intuitions in regards to betting/prediction markets.

Why, then, did you choose an existential threat issue to base the entire story on when you know how many issues those bring up for prediction markets with regard to incentives and counterparty risk and the difficulty of 'betting on the apocalypse'? You should have chosen an issue more clearly within prediction markets' scope.