Query the LessWrong Hivemind

D_Malik

Often, there are questions you want to know the answers to. You want other people's opinions, because knowing the answer isn't worth the time you'd have to spend to find it, or you're unsure whether your answer is right.

LW seems like a good place to ask these questions because the people here are pretty rational. So, in this thread: You post a top-level comment with some question. Other people reply to your comment with their answers. You upvote answers that you agree with and questions whose answers you'd like to know.

A few (mostly obvious) guidelines:

For questions:

Your question should probably be in one of the following forms:
- Asking for the probability some proposition is true.
- Asking for a confidence interval.
Be specific. Don't ask when the singularity will happen unless you define 'singularity' to reasonable precision.
If you have several questions, post each separately, unless they're strongly related.

For answers:

Give what the question asks for, be it a probability or a confidence interval or something else. Try to give numbers.
Give some indication of how good your map is, i.e why is your answer that? If you want, give links.
If you think you know the answer to your own question, you can post it.
If you want to, give more information. For instance, if someone asks whether it's a good idea to brush their teeth, you can include info about flossing.
If you've researched something well but don't feel like typing up a long justification of your opinions, that's fine. Rather give your opinion without detailed arguments than give nothing at all. You can always flesh your answer out later, or never.

This thread is primarily for getting the hivemind's opinions on things, not for debating probabilities of propositions. Debating is also okay, though, especially since it will help question-posters to make up their minds.

Don't be too squeamish about breaking the question-answer format.

This is a followup to my comment in the open thread.

A few (mostly obvious) guidelines:

For questions:

Your question should probably be in one of the following forms:
- Asking for the probability some proposition is true.
- Asking for a confidence interval.
Be specific. Don't ask when the singularity will happen unless you define 'singularity' to reasonable precision.
If you have several questions, post each separately, unless they're strongly related.

For answers:

Give what the question asks for, be it a probability or a confidence interval or something else. Try to give numbers.
Give some indication of how good your map is, i.e why is your answer that? If you want, give links.
If you think you know the answer to your own question, you can post it.
If you want to, give more information. For instance, if someone asks whether it's a good idea to brush their teeth, you can include info about flossing.
If you've researched something well but don't feel like typing up a long justification of your opinions, that's fine. Rather give your opinion without detailed arguments than give nothing at all. You can always flesh your answer out later, or never.

Don't be too squeamish about breaking the question-answer format.

This is a followup to my comment in the open thread.

So, this is correct enough, but I would recommend generalizing the principle.

The (nominally) interesting thing about Pascal's Mugging scenarios (and also about the original Pascal's Wager, which inspired them) is that we can posit hypothetical scenarios that involve utility shifts so vast that even if they are vanishingly unlikely scenarios, the result of multiplying the probability of the scenario by the magnitude of the utility shift should it come to pass is still substantial. This allows a decision system that operates based on the expected value of a scenario (that is, the expected value of the scenario times its likelihood) to be manipulated by presenting it with carefully tailored scenarios of this sort (e.g., Pascal's mugging).

It's conceivable that a well-calibrated decision system would not be subject to such manipulation, because it would assign each scenario a probability that reflected such things... e.g., it would estimate the likelihood of there actually existing an Omega capable of creating 2N units of disutility as no more than .5 the likelihood of an Omega capable of creating only N units.

But I've never met any decision system that well calibrated. So, as bounded systems running on inadequate corrupted hardware, we have to come up with other tactics that keep us from driving off cliffs.

In general, one such tactic is to maintain a broader perspective than just the specific problem I've been invited to think about.

So when the Mugger asserts that there is a mugging, I can ask "Why should I care? What other things do I have roughly the same reason to care about, and why is my attention being directed to this particular choice within that set?"

The same thing goes when Pascal himself argues that I ought to worship the Christian God, for example, because no matter how unlikely I consider His existence, the sheer magnitude of the stakes (Heaven and Hell) dwarf that unlikelihood. If I find that compelling, I should find a vast number of competing Gods' claims equally compelling.

The same thing goes (on a smaller scale) when someone tries to sell me insurance against some specific bad thing happening.

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