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Sniffnoy's avatar

I like this post a lot! It covers very different stuff than I would have if I were writing it.

Well, since I'm commenting, I want to expand on some of the things you said at the end with some tips of my own. :P

1. Don't just go drawing conclusions about what your interlocutor believes by taking the "logical" consequences of what they've told you! Your idea of the logical consequences probably in fact depends on hidden assumptions you're making -- and they don't agree with those. This is the infamous "A/B problem". I mean, OK -- it's important to see what the conclusions are and explore whether they agree with them, but like. Don't go attributing your own conclusions to your interlocutor, right? Don't put words in people's mouths. Ask them about it, don't assert that they believe it. (I guess that's a more general principle.)

2. Speaking of which -- yeah, people who disagree with you *actually disagree* with you, meaning they disagree with you on a lot of background assumptions; they don't secretly agree with you but for one small thing. (The "believing atheists are Satanists" problem.) But people aren't good at making such background assumptions explicit, so they won't helpfullly *state* all their disagreements with you; you'll have to tease it out. (Why don't they state them? For the same reason you didn't think to do so, they didn't realize it was a controversial point that someone might disagree with!) This often involves noticing when someone might be using a concept that compresses multiple things together, and taking the time to peel apart the conflation or equivocation.

3. Remember to keep in mind, what disagreements are important? It's usually not productive to argue over something that you don't agree with but which doesn't affect the actual point at hand.

4. Don't accidentally accuse people of bad faith! I see a lot of people on the internet throwing around the word "disingenuous" a lot. I'm not sure they all mean ill by this, but, like... if you call someone "disingenuous", you are accusing them of arguing in bad faith, and they may react appropriately by, y'know, not wanting to argue with you anymore. Seriously, go check a dictionary -- maybe that's not what you thought the word meant, but that is the dictionary definition and it is how a lot of people will reasonably take it. You should likely scrub this word from your productive vocabulary. I see a bunch of people who seem otherwise polite turn things sour by calling someone "disingenuous", I'm not kidding. If there is some other useful concept you were using it to try to express, find a different way to express it.

...really I've said more about all of this in this series of LW posts:

https://www.lesswrong.com/posts/GrZJCseCviYpXCT5r/doing-principle-of-charity-better

https://www.lesswrong.com/posts/pvsdduXMfo3AeepFF/x-as-phenomenon-vs-as-policy-goodhart-and-the-ab-problem

https://www.lesswrong.com/posts/LC7jaqukdEu5zTAmg/more-on-policy-arguments-and-the-ab-problem

...but this is what I wanted to add quickly. :P

Greg R.'s avatar

It seems fair to believe people when they say what beliefs they hold, but I’d suggest you can get into trouble when you assume that people hold beliefs that are the logical consequences of beliefs that they hold, and even more trouble when you assume that they hold beliefs that you think are the logical consequences of beliefs that they hold. Many people hold conflicting beliefs, and many, many people hold beliefs with conflicting implications. I hold a bunch of conflicting beliefs myself and I am a reasonably smart guy who likes to think and talk about abstract issues for fun.

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