jsalvatier comments on [SEQ RERUN] The Martial Art of Rationality - Less Wrong

7 Post author: Unnamed 19 April 2011 07:41PM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (45)

You are viewing a single comment's thread. Show more comments above.

Comment author: [deleted] 19 April 2011 10:11:23PM 0 points [-]

I don't know a lot about martial arts, so I looked them up. Wikipedia, line one:

Martial arts are extensive systems of codified practices and traditions of combat.

So far so good for the analogy. Rationality is a system of practices and traditions of thinking. Wikipedia, line two:

Martial arts all have similar objectives: to physically defeat other persons or defend oneself or others from physical threat.

Now I'm stumped. Does rationality have an objective?

My understanding from movies is that a trained martial artist can defeat an untrained opponent, even if that opponent is larger or has better weapons. Or, as in the post, break a thick board with his fist. What opponents can you defeat or what cool tricks can you do with rationality training, that you couldn't without?

Comment author: jsalvatier 19 April 2011 11:54:43PM 0 points [-]

Sure. The objective of rationality is to achieve your goals as well as possible. Rationality doesn't tell you what you goals are, and martial arts don't tell you which people to defeat.

Comment author: Vladimir_Nesov 21 April 2011 04:48:57PM *  2 points [-]

Rationality doesn't tell you what you goals are, and martial arts don't tell you which people to defeat.

It does, surprisingly. If you don't know what your goals are, there are worse and better ways of figuring that out, with errors on this level having pronounced if subtly hard-to-notice consequences. There is probably even a sense in which it's impossible to know your goals (or their definition, etc.) exactly, to reach a point where you are allowed to stop creatively working on the question.

Comment author: jsalvatier 21 April 2011 04:59:29PM 0 points [-]

I agree, that it rationality should help you figure out your instrumental goals, but it's easy to view this as 'a way to better achieve your higher level goals'.

Comment author: Vladimir_Nesov 21 April 2011 05:30:32PM *  0 points [-]

Not just instrumental goals. If you believe that you should achieve something, it doesn't automatically mean that you really should. Your belief is a fact about your brain, which is not always in good alignment with your values (even though it really tries).

When you notice that you want something (as a terminal goal), you are reflecting on the fact that your brain, probably the best value-estimating apparatus you've got, has calculated that pursuing this goal is good. It could be wrong, it's your job now to figure out if it made an error in that judgment. Maybe you can find a way to improve on its reasoning process, compensating for a specific flaw and thus gaining access to a superior conclusion produced by the improved procedure (which is often ultimately the point of knowing how things work). (Or maybe you'll even find an argument that makes taking into account what your own brain tells you in a given instance a bad idea.)

Comment author: Dr_Manhattan 22 April 2011 01:54:20PM 0 points [-]

Your belief is a fact about your brain, which is not always in good alignment with your values (even though it really tries).

But where do values reside? How do you know that your belief did not correspond to your values?

Comment author: Vladimir_Nesov 22 April 2011 08:22:27PM 1 point [-]

Where does truth about arithmetic reside? How can you ever find out that you've miscalculated something? Apply similar principles to moral questions.

Comment author: [deleted] 20 April 2011 12:47:19AM 0 points [-]

The objective of rationality is to achieve your goals as well as possible.

Too general, and maybe false. Many people, rational and not, are interested in and successful at achieving their goals well. And: less wrong is sometimes a seminar on how to achieve your goals, but it is not always and only that (I hope!).

Comment author: cwillu 20 April 2011 02:43:59AM 0 points [-]

They are rational to the extent they are interested and successful at achieving their goals.

Comment author: Jayson_Virissimo 20 April 2011 07:38:09AM *  5 points [-]

They are rational to the extent they are interested and successful at achieving their goals.

Imagine two people, Alice and Bob, share the goal of deadlifting X lbs. Alice and Bob are equally "interested and successful at achieving" all their other goals besides deadlifting X lbs. Bob is stronger than Alice. Therefore, he is more likely to be able to deadlift X lbs. Can we thereby conclude that Bob is more rational than Alice?

Comment author: ciphergoth 10 April 2013 06:47:11AM 1 point [-]

You say "all else equal" here. But all else clearly isn't equal - they have different genders.

All else being equal, yes I'd expect deadlift weight to be somewhat correlated with rationality.

Comment author: Jayson_Virissimo 10 April 2013 07:02:28AM *  0 points [-]

You say "all else equal" here. But all else clearly isn't equal - they have different genders.

You assumed that Alice was a girl (normally a good guess), but I never mentioned his gender in my thought-experiment. Then again, they have different names, etc...But this misses the point of my "all else equal" clause, which refers to their interestedness and succesfulness (besides their (probable) success at deadlifting), not a myriad of accidental features.

Comment author: wedrifid 10 April 2013 05:58:13AM 0 points [-]

Imagine two people, Alice and Bob, share the goal of deadlifting X lbs. Alice and Bob are equally "interested and successful at achieving" all their other goals besides deadlifting X lbs. Bob is stronger than Alice. Therefore, he is more likely to be able to deadlift X lbs. Can we thereby conclude that Bob is more rational than Alice?

No. It is incredibly weak evidence that Bob is more rational than Alice.

Comment author: randallsquared 20 April 2011 12:31:44PM 0 points [-]

Many people, martial artists and not, are interested in defending themselves and others from physical threat. That doesn't mean that Wikipedia's definition of martial arts is too general or false.

(Although, actually, it's too specific, in this case, since a lot of martial artists are not interested in the defense aspects, but more in physical fitness or enlightenment or whatever).

Comment author: [deleted] 20 April 2011 12:39:19PM 0 points [-]

By "many people" I might have meant "every creature that can be said to have goals at all."

Comment author: randallsquared 20 April 2011 12:49:16PM 0 points [-]

I could quibble with "successful at", but I think the analogy still holds in any case. Virtually everyone is interested in defending themselves, at least, from physical threat.

Martial arts are one approach to being more effective at defense, and rationality is a similar approach to being more effective at reaching goals in general.

Comment author: [deleted] 20 April 2011 07:36:12PM 0 points [-]

We should absolutely be quibbling about "successful." Someone comes to me with advice for achieving my goals: "I know just the ticket, all you have to do is swallow this giant pack of lies." Well, couldn't they be right?

I think it's a rare individual who would actually be in less physical danger if they were better at martial arts. The scope of rationality is similarly limited -- it's not useful for every one, or for every goal.

Comment author: ameriver 21 April 2011 08:21:25AM 1 point [-]

I think it's a rare individual who would actually be in less physical danger if they were better at martial arts.

Do you think that because you believe most people don't experience physical danger? Or because you think that martial arts is ineffective in dealing with the most common types of danger? Or some other reason?

Comment author: [deleted] 21 April 2011 02:33:14PM *  2 points [-]

I think martial arts are unnecessary for dealing with the most common types of danger.

Comment author: ameriver 21 April 2011 04:18:13PM 3 points [-]

The most valuable lesson I ever learned from martial arts was how to fall down without hurting myself, and I'd say this is a skill that would help most people significantly reduce the number and severity of physical injuries they experience over their lifetime.