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Heuristics that almost always work

astralcodexten.substack.com

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Re: Heuristics that almost always work

#3
Generally agree with the article, though the reverse is obviously, "Heuristic which almost never works", and all the stories are about the 1 out 100000 times the weirdo was right and everyone lauded them as a genius but really they just got lucky the once.

Re: Heuristics that almost always work

#4
>The only problem is: he now provides literally no value. He’s excluded by fiat the possibility of ever being useful in any way. He could be losslessly replaced by a rock with the words “THERE ARE NO ROBBERS” on it

except for the value of having a security guard visible so that 99% of the robbers who might conceivably want to rob a Pillow Mart decide to go rob Quilting Heaven down the road instead.

Re: Heuristics that almost always work

#5
Specifically around the security guard example, the mere presence of a security guard should deter thieves (in theory), so I think the analysis is a little more nuanced than "security guards investigate weird noises".

Unless this all went over my head and that's all sort-of the point of what he's getting at . . ?

Re: Heuristics that almost always work

#6
You'd do a lot better with one strong example rather than seven weak examples.

For instance, if you are interested in Bayes Theorem like a lot of rationalists say they are, you could talk about the medical test which is 99.99% accurate but for which 90% of the positives are false positives.

Re: Heuristics that almost always work

#7

>The only problem is: he now provides literally no value. He’s excluded by fiat the possibility of ever being useful in any way. He could be losslessly replaced by a rock with the words “THERE ARE NO ROBBERS” on it except for the value of having a security guard visible so that 99% of the robbers who might conceivably want to rob a Pillow Mart decide to go rob Quilting Heaven down the road instead.

Instead of a rock you just need an inflatable security guard.

What's frightening about all this is that this article has gotten 15 upvotes despite 100% of the comments so far being about what a pointless article this is.

Re: Heuristics that almost always work

#8

Specifically around the security guard example, the mere presence of a security guard should deter thieves (in theory), so I think the analysis is a little more nuanced than "security guards investigate weird noises". Unless this all went over my head and that's all sort-of the point of what he's getting at . . ?

He's not talking to you, he's talking to the other people in his pod.

Re: Heuristics that almost always work

#9
This is where Bayesian inference really signs.

For the security guard, hearing a single noise is likely to be nothing. However, what if you heard two noises, and the sound of tires outside?

Same thing with the doctor. Most good doctor's I know have a sixth sense, about when something is off and needs further tests beyond just take an aspirin. So maybe the person had a stomach ache, and they had lost some weight, and they were looking a little yellow. All of a sudden the probabilities start looking a lot different.

Re: Heuristics that almost always work

#10

>The only problem is: he now provides literally no value. He’s excluded by fiat the possibility of ever being useful in any way. He could be losslessly replaced by a rock with the words “THERE ARE NO ROBBERS” on it except for the value of having a security guard visible so that 99% of the robbers who might conceivably want to rob a Pillow Mart decide to go rob Quilting Heaven down the road instead.

Instead of a rock you just need an inflatable security guard. What's frightening about all this is that this article has gotten 15 upvotes despite 100% of the comments so far being about what a pointless article this is.

yeah I don't know I think people might spot the difference. But maybe most of these robbers have a method that says if you see anything like a security guard don't figure out if it is one just go rob somewhere that definitely doesn't have it because there's always somewhere else to rob - but maybe one of the groups of robbers is better than everyone else and they have a real robber mastermind in charge who determines the security guard is inflatable. Then it's on.

on edit: added in missing two words that clarified meaning.

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