All of Idan Arye's Comments + Replies

Doesn't society already consider it immoral to go to crowded places untested when you suspect you have COVID? This is not just about a specific detail of this specific story - one important feature is morality is preventing humans from convincing themselves that the thing they want to do is the utilitarian choice. We decided that going untested is immoral precisely because people like Alice who avoid testing themselves for such reasons.

Instead of morality, I think what Alice seeks here is deniability. If Alice does not take the test, she can convince herse... (read more)

I interpret the engagement with conservative ideas Scott's describing a little more straightforwardly. Lots of people are inundated with Mrs. Grundy leftist takes on social media. They're smart enough to try and figure out what they really think. So they say  things like "Oh, I heard about that guy in South Carolina. Instead of knee-jerk condemnation, let’s try to form some general principles out of it and see what it teaches us about civil society.”

This isn't countersignaling. It's just signaling. This isn't making fun of anybody, and it's calling fo

... (read more)

Rarity, by its very nature, cannot be too abundant. The more plentiful it becomes, the more it loses its defining property. There is only one original Mona Lisa, but every NFT project spits out a combinatorial number of images all built from a small number of assets and pretends they are all rare.

Each NFT is indeed unique, but since there are tens of thousands similarly unique NFTs - most or them are not really rare. One could claim that rare paintings are the same - that if NFTs are not rare because there are other NFTs, then by the same logic Mona Lisa s... (read more)

1matto
The metaverse idea has been around before Facebook changed their name. Neal Stephenson used this name in his 1992 novel Snow Crash. And in the crypto space, this idea existed at least around 01/21 - https://www.notboring.co/p/the-value-chain-of-the-open-metaverse, but given that Not Boring is relatively lagging, I wouldn't be surprised if the ideas that fall under the metaverse label existed months, even years before that post. So Facebook changing its name and the crypto folks using the label "metaverse" are rather coincidental than a planned effort to part users with their money. And, to your point about "NFT people" trying to extract profit from NFTs, I understand that idea is just the opposite. Right now, content published to platforms like Facebook or Twitter is difficult to extract and transport over. But NFTs exist on some blockchains, which is globally readable--a Twitter or Facebook cannot "lock in" your NFT. They can only build some integrations to enable you to showcase it and show other users that you are the owner, but that's as far as they can go.

The headline result: the researchers asked experts for their probabilities that we would get AI that was “able to accomplish every task better and more cheaply than human workers”. The experts thought on average there was a 50% chance of this happening by 2062 – and a 10% chance of it happening by 2026!

But on its own this is a bit misleading. They also asked by what year “for any occupation, machines could be built to carry out the task better and more cheaply than human workers”. The experts thought on average that there was a 50% chance of this happening

... (read more)

I see. So essentially demandingness is not about how strong the demand is but about how much is being demanded?

I think the key to the drowning child parable is the ability of others to judge you. I can't judge you for not donating a huge portion of your income to charity, because then you'll bring up the fact that I don't donate a huge portion of my own income to charity. Sure, there are people who do donate that much, but they are few enough that it is still socially safe to not donate. But I can judge you for not saving the child, because you can't challenge me for not saving them - I was not there. This means that not saving the child poses a risk to your social status, which can greatly tilt the utility balance in favor of saving them.

-1Canaletto
Exactly

Could you clarify what you mean by "demandingness"? Because according to my understanding the drowning child should be more demanding than donating to AMF because the situation demands that you sacrifice to rescue them, unlike AMF that does not place any specific demands on you personally. So I assume you mean something else?

7Rob Bensinger
The point of the original drowning child argument was to argue for 'give basically everything you have to help people in dire need in the developing world'. So the point of the original argument was to move from * A relatively Undemanding + Near scenario: You encounter a child drowning in the real world. This is relatively undemanding because it's a rare, once-off event that only costs you the shirt on your back plus a few minutes of your time. You aren't risking your life, giving away all your wealth, spending your whole life working on the problem, etc. to * A relatively Demanding + Far scenario. It doesn't have to be AMF or GiveDirectly, but I use those as examples. (Also, obviously, you can give to those orgs without endorsing 'give everything you have'. They're just stand-ins here.)

If Heracles was staring at Hermes' back, shouldn't he have noticed the Eagle eating his liver?

Wait - but if you can use population control to manipulate the global utility just by changing the statistical weights, isn't it plain average utilitarianism instead of the fancier negative preference kind?

This also relates to your thrive/survive theory. A society in extreme survive mode cannot tolerate "burdens" - it needs 100% of the populace to contribute. Infants may be a special exception for the few years until they can start contributing, but other than that if you can't work for whatever reason you die - because if the society will have to allocate to you more utility than what you can give back, it'll lose utility and die. This is extreme survive mode, there is no utility to spare.

As we move thriveward, we get more and more room for "burdens". We do... (read more)

I came to a similar conclusion from a different angle. Instead of the past, I considered the future - specifically the future of automation. There is a popular pessimistic scenario of machines taking up human jobs making everyone - save for the tycoons who own the machines - unable to provide for themselves. This prediction is criticized by pointing out that automation in the past created better jobs, replacing the ones it took away. Which is countered by claiming that past automation was mainly replacing our muscles, but now we are working on automation t... (read more)

Why ? The participants may have a preference for one nonprofit over the other, but surely - all else being equal - they should prefer their less favorite nonprofit to get money over it getting nothing.

I'd go even farther - this is charity, so instead of a social outcome which is the sum of the players' utility the individual utilities here are applications of the players' value functions on the social outcome. Even if you prefer one nonprofit over the other - do you prefer it enough to relinquish these extra $100? Do you think your favorite charity... (read more)

You also need to only permit people who took part in the negotiations to launch nukes. Otherwise newcomers could just nuke without anyone having a chance to establish a precommittment to retaliate against them.

Oh. Good point. Maybe it would be interesting to do a version where you can't retract a counter nuke after the original nuke's 20 minutes.

Either way, I think the 20 minute rule is important for even talking about precommitting. Without it, people can chat and make contracts all they want, only for someone completely uninvolved in the conversation to suddenly post a nuke comment.

1Jeffrey Ladish
Another way to run this would be to have a period of time before launches are possible for people to negotiate, and then to not allow retracting nukes after that point.  And I think next time I would make it so that the total of no-nukes would be greater than the total if only one side nuked, though I did like this time that people had the option of a creative solution that "nuked" a side but lead to higher EV for both parties than not nuking. 

The ability to cancel launches make it effectively simultaneous, because they mean you can't commit (at least not under the explicit rules)

2jimrandomh
The first mover can commit by just waiting 20 minutes, after which there's a time interval equal to the period between when the first and second movers took their turns, during which the second mover can undo but the first mover can't.

If we are looking for a known game structure with a formal name, I'd say it's Battle of the Sexes: a defect-cooperate is preferable to both defect-defect and cooperate-cooperate, but each side would rather be the defector in that outcome.

3philh
Even assuming simultaneous moves, it's not battle of the sexes. In my own classification it would be at the intersection between Too Many Cooks and Farmer's Dilemma: Y>W>X=Z with X+Y>2W. (W=100,X=0,Y=150,Z=0.) I didn't mention BoS in that post because it doesn't fit the schema. But (suddenly obviously) it fits if you just relabel one player's moves. Then it has X>Y>W≥Z or Y>X>W=Z, making it Anti-Coordination in either case.
2jimrandomh
No, it's not the same game at all because Battle of the Sexes has simultaneous moves, while this game has sequential moves (you can check the comments for other players' moves before making your own).

I wonder, though - maybe there are some rational skills that do benefit from repetitive practice? Overcoming bias comes to mind - even after you recognize the bias, sometimes it still takes mental energy to resist its temptation. Maybe katas could help there?

1Jay
I can think of a few skills that, while not "rationality" in themselves, make it much easier to reason effectively.  Numeracy is one.  The innumerate can't really see the difference between a million, a billion, a trillion, and a godzillion.   It helps to have, in memory, a set of references to compare to.  For example, there are about a third of a billion people in the United States.  Therefore a billion dollars is roughly $3 each, a trillion dollars is roughly $3,000 each, and a million dollars is roughly nothing (.3 cents) each. A working knowledge of history is also helpful, as is a rough understanding of manufacturing.
2Pattern
It's also helpful to practice when you're first learning something.

visitor:  Hold on, I think my cultural translator is broken. You used that word “doctor” and my translator spit out a long sequence of words for Examiner plus Diagnostician plus Treatment Planner plus Surgeon plus Outcome Evaluator plus Student Trainer plus Business Manager. Maybe it’s stuck and spitting out the names of all the professions associated with medicine.

This actually sounds a bit similar to how Scott Alexander described hospital pipelines. Sure - real life are not as efficient as in the visitor's homeworld, and medical doctors still g... (read more)

Beliefs are quantitative, not qualitative. The more evidence you pile in favor of the claim, the stronger your confidence in it should be. Observing that there is no monkey is much stronger evidence than the geography based argument, and it's probably enough, but the belief is not binary so having both arguments should result in higher probability assigned to it than with having just one argument, not matter how much stronger that single argument is. .

In practice, thing about it that way - what if the monk... (read more)

Rene Descartes goes up to the counter. “I’ll have a scone,” he says. “Would you like juice with that?” asks the barista. “I think not,” says Descartes, and he ceases to exist.

I can't believe you missed an opportunity to do an "I drink, therefore I am" joke...

I think this lesson extends behind the scope of programming, even behind the more general scope of technology. We should not be too humble before complicated, hard-to-understand things. We should not be too quick to assume the fault is in our inability to comprehend them. We should always consider the possibility that it's their fault being needlessly complicated, or even just plain nonsense.

I've seen some essays (often in the area of philosophy and/or religion) that - I believe - try to take advantage of that utility. They support their argument with cryp... (read more)

3Adam Zerner
Yes! This! I wanted to make this point in the OP as well, but couldn't think of good examples or arguments, so I just stuck to programming. I'd love to see you or someone else expand on it in a separate post though. Now that I think about it, Getting Eulered is similar.

(on the other hand, the inability to condition yourself seems relevant here. It seems like the brain might be not be controlling for whether something is reasonable, but only for whether something is produced by yourself. So maybe exercise counts because it’s under your control, but waterboarding doesn’t count because it isn’t. I wonder if anyone has ever tried letting someone waterboard themselves and giving them the on-off switch for the waterboarding device. Was Hitchens’ experience close enough to this to count? Why would this be different from letting

... (read more)
Idan Arye*150

I'd argue that people who are not familiar with "iff" are usually unfamiliar with its full version "if and only if" as well and, unaware of the need for such distinction, tend to treat regular "if" as bidirectional. These two mistakes will cancel each other out and they won't miss said something key.

4Gordon Seidoh Worley
Agreed. I think this basically makes concerns about "iff" being mistaken for "if" irrelevant and trying to make a better shorthand for "if and only if" is a distraction with insufficient impact for most anyone to trouble themselves with.

January 2021 have witnessed the GameStop short squeeze where many small investors, self organized via Reddit, bought a stock in order to hold it and cause financial damage to several hedge funds that shorted it. It was all over the news and was eventually diffused when the brokerage companies sold their clients stocks without their consent.

This resolution triggered great outrage. The traders and their supporters claimed that hedge funds were toying with the economy for a long time now, ruining companies and the families who depended on them, and it was con... (read more)

If you've never acknowledged that other study, there is a possibility that you'll consider it objectively once introduced to it.

Section IV, clause A:

Buyer and Seller agree that the owner of the Soul may possess, claim, keep, store, offer, transfer, or make use of it in whole or in part in any manner that they see fit to do so, conventional or otherwise, including (but not limited to) the purposes described in this Section (IV). Example uses of the Soul which would be permitted under these terms include (but are not limited to):

  • ...
  • Long term storage, usage, or preservation of the Soul in a state which would prevent it from taking the course of development, evolution, or relocation it
... (read more)

Isn't that the information density for sentences? With all the conjunctions, and with the limitness of the number of different words that can appear in different places of the sentence, it's not that surprising we only get 1.1 bits per letter. But names should be more information dense - maybe not the full 4.7 (because some names just don't make sense) but at least 2 bits per letter, maybe even 3?

I don't know where to find (or how to handle) a big list of full names, so I'm settling for the (probably partial) lists of first names from https://www.galbithin... (read more)

The prior odds that someone’s name is “Mark Xu” are generously 1:1,000,000. Posterior odds of 20:1 implies that the odds ratio of me saying “Mark Xu” is 20,000,000:1, or roughly 24 bits of evidence. That’s a lot of evidence.

There are 26 letters in the English alphabet. Even if, for simplicity, our encoding ignores word boundaries and message ending, that's  bits per letter so hearing you say "Mark Xu" is 28.2 bits of evidence total - more than the 24 bits required.

Of course - my encoding is flawed. An optimal encoding should assign "Mar... (read more)

3Dweomite
"Mark Xu" is an unusually short name, so the message-ending might actually contain most of the entropy. The phrases "my name is Mark Xu" and "my name is Mortimer Q. Snodgrass" contain roughly the same amount of evidence, even though the second has 12 additional letters.  ("Mark Xu" might be a more likely name on priors, but it's nowhere near 2^(4.7 * 12) more likely.)
3Ericf
A study that found that English has about 1.1 bits of information per letter, if you already know the message is in english. (XKCD "What If" linked to the original)

Realistically, how high would the tax burden have to be for you to accept those costs of secession?

France's 2015 taxes of 75% made rich people secede, so we can take that as a supremum on the minimal tax burden that can make people secede. Of course - France's rich didn't have to go live in the woods - they had the option to go to other countries. Also, they did not have the option to not go to any country, because all the land on earth is divided between the countries.

I agree that the main benefits for the rich to remain in under the state's rule and pay ... (read more)

1ShemTealeaf
  Right, but they're presumably moving to another country where they're still paying taxes and participating in the state. If they had the option, do you think that they would prefer to opt out of the state completely (with all the associated downsides), rather than just moving to a country with somewhat lower taxes? I think we can sidestep this question, because I don't think the state even has to do this with force. If they just say "anyone who does business with Person X loses access to roads, police, courts, sanitation, etc.", that's a very strong disincentive.

I think there is some academic merit in taking this example to the extreme and assuming that the rich person is responsible to 100% of the community's resources, and they alone can fund the its entire activity, and if they secede alone the community is left with nothing. They can't protect people in their streets because they can't afford a police. They can't punish criminals because they can't afford a prison. They may be left with their old roads, but without maintenance they quickly wear out while the rich person can build new ones. Their permission to ... (read more)

1ShemTealeaf
I agree in theory; I just don't think that the hypothetical bears much resemblance to reality. The tax burden of the richest individuals in the US is just a tiny rounding error in the federal budget. Even if you could stop the tax payments of every billionaire in the country, the federal government would barely notice the difference. You'd have to stop the tax payments of millions of people before it would start having a noticeable impact on the government ability to enforce its will. Also, on a practical level, I think that the downside of losing membership in the state is so enormous that it would outweigh almost any tax burden. Just to start with, you would lose the ability to enter into most countries, since you would not have a valid passport. Even if your former government is willing to let you travel through their territory to leave your property (something which they are under no obligation to do), where are you going to go? How are you going to maintain your income? Realistically, how high would the tax burden have to be for you to accept those costs of secession?

I was replying to ShemTealeaf's claim that the rich person still has an incentive to stay - remaining under the protection of the community's court system. I was arguing that what the rich person needs from the community's court system is not its resources (which the rich person was providing anyway, and would dry out once they secede) but its social norms - the people's agreement to respect it's laws, which mean they would not attack the rich person. My point is that if the reach person's incentive to stay is to not get robbed and killed by the community ... (read more)

2Matthew Barnett
Oh makes sense. Because of how I was notified, I thought you were replying to me. Read my comment as if I thought you were. :)

In this hypothetical scenario, the rich person was the sole source of funding for the community's services. Once they opt out, the community will no longer be able to pay the police, and since all the police salaries came from the rich person's pockets - the rich person will be able to use the same amount of money previously used to pay the police force to finance their own private security.

Same for all the other services the community was providing.

Of course, the community will still have all the infrastructure and equipment that was purchased with the ri... (read more)

1ShemTealeaf
That's fair; maybe I didn't understand the hypothetical. If the person is so rich that they are providing 100% of the funding for the government, my criticism doesn't apply. If you can fund the services that a government would provide on your own, I can see the case for opting out. In practice, I don't think that applies to more than a handful of people. If the argument is that the top 0.01% richest people and a few loners in the woods are being unjustly prevented from opting out of taxation, I'm willing to concede that point. I don't think it changes the overall picture that the overwhelming majority of people would not want to opt out. Also, I wasn't really talking about an organized uprising in terms of why the person opting out would need protection. I assume there are plenty of criminals who already exist that would enjoy the chance to engage in some theft without risking jail time. The community would just put up a sign outside the rich person's property saying "this house is not protected by community laws or police". Maybe if the rich person wants to use a public street, make them wear a shirt that says "this person does not have the protection or backing of any nation" to ensure that they're not free riding on the police protection that they're opting out of. None of that involves the community threatening violence; it's just withdrawing protection. Furthermore, legal protection is just one of many services that the state provides. At the most basic level, it's pretty hard to get around without using public roads, and it's pretty hard to stay rich if the government decides you can't do business in its territory.
2Matthew Barnett
Well, in the hypothetical, yes, they can opt out. We will assume that in the hypothetical, the people would not rise up against the rich person if they voluntarily opted out of governance under some hypothetical agreement.  Can you clarify your point more? I am unsure whether you are merely making some general observation about why rich people can't opt out of taxes in the real world, or whether you are making some theoretical argument for the implausibility of one of the assumptions in my thought experiment.

Most[1] logical fallacies are obvious when arranged in their pattern, but when you encounter them in the wild they are usually transformed by rhetorics to mask that pattern. The "lack of rhetorical skills", then, may not be bad argumentation by itself - but it does help exposing it. If a pickpocket is caught in the act, it won't help them to claim that they were only caught because they were not dexterous enough and it's unfair to put someone in jail for a lack of skill. The fact remains that they tried to steal, and it would still be a crime if they were ... (read more)

If Alice can sacrifice her privacy to prove her loyalty, she'll be force to do so to avoid losing to Bob - who already sacrificed his privacy to prove his loyalty and not lose to Alice. They both sacrificed their privacy to get an advantage over each other, and ended up without any relative advantage gained. Moloch wins.

3DanielFilan
Moloch and also the electorate!

Coincidences can be evidence for correlation and therefore evidence for causation, as long as one remembers that evidence - like more things than most people feel comfortable with - are quantitative, not qualitative. A single coincidence, of even multiple coincidences, can make a causation less improbable - but it can still be considered very improbable until we get much more evidence.

Manslaughter? Probably not - you did not contribute to that person's death. You are, however, guilty of:

  1. Desecration of the corpse.
  2. Obstructing the work of the sanitation workers (it's too late for paramedics) that can't remove the body from the road because of the endless stream of cars running over it.
  3. You probably didn't count 100k vehicles running over that body. A bystander who stayed there for a couple of days could have, but since you are one of the drivers you probably only witness a few cars running over that person - so as far as you know there is a
... (read more)

Is pulling the lever after the trolley had passed still a murder?

7DirectedEvolution
I think the closer framing is something like: if you're the 100,000th person to deliberately run your car over a person's body, are you liable for vehicular manslaughter?

Even if you could tell - Voldemort was Obliviated while knocked out and then transfigured before having the chance to wake up, so there never was an opportunity to verify that the Obliviation worked.

I don't think so - the Vow is not an electric collar that shocks Harry every time he tries to destroy the world. This would invite ways to try and outsmart the Vow. Remember - the allegory here is to AI alignment. The Vow is not just giving Harry deterrents - it modifies his internal reasoning and values so that he would avoid world destruction.

4Matt Goldenberg
But what if there was something Harry did that he was not smart enough to realize would likely end the world... And doing that thing made him smart enough to realize that. But he could only work through that with the intelligence from the world ending things. Seems like the sort of thing that could short out the enchantment.

One thing to keep in mind is that even if it does seem likely that the suspected bluffer is smarter and more knowledgeable than you, the bar for actually working on the subject is higher than the bar for understanding a discussion about it. So even if you are not qualified enough to be an X researcher or an X lecturer, you should still be able to understand a lecture about X.

Even if the gap between you two is so great that they can publish papers on the subject and you can't even understand a simple lecture, you should still be able to understand some of t... (read more)

By the way, I wouldn't be surprised if "the end of the world" is Moody's stock response to "what's the worst that could happen?" in any context.

(this is no longer spoiler so we no longer need to hide it)

I'm not sure about that. That could be Harry's stock response - "there was always a slight probability for the end of the world and this suggestion will not completely eliminate that probability". But Moody's? I would expect him to quickly make a list of all the things that could go wrong for each suggested course of action.

ejacob140

I could see a world where "the end of the world" is Moody's stock response to questions like "what's the worst that could happen?" if Harry Potter is the one asking the question, but not in general.

Are potential HPMOR spoilers acceptable in the comments here? I'm not really sure - the default is to assume they aren't, but the fanfic itself contains some, so to be sure I'll hide it just in case:

Can Harry really discuss the idea of destroying the world so casually? Shouldn't his unbreakable oath compel him to avoid anything that can contribute to it, and abandon the idea of building the hospital without permit as soon as Moody jokes (is that the correct term when talking about Moody?) about it causing the end of the world?

9Measure
HPMOR spoilers: By the way, I wouldn't be surprised if "the end of the world" is Moody's stock response to "what's the worst that could happen?" in any context.

I notice we are seeing Luna getting ridiculed for her reputation rather then directly for her actions. Even when it's clear how her reputation is a result of her actions - for example they laugh at her for having an imaginary pet, but never once have we seen other students looking at weird when she interacts with Wanda.

Is this intentional? Because we are getting this story from Luna's PoV? Does she consider her reputation unjustified because her behavior does not seem weird to her?

7abramdemski
An example of this earlier in the story is when she skips to the front of the room in the sorting hat ritual. Everyone laughs at her, and she thinks "that's what you get for having a father who speaks truth to power"... but they are clearly laughing about the skipping.

I'm a bit surprised the twins had the patience and concentration to sit with Luna and help her go over the map over and over.

9FeepingCreature
I think what happened is the Wesley twins noticed that they had contradictory beliefs: 1. "We've been to every room" 2. "We've seen the Chamber of Secrets on the map before" 3. "We haven't been in the CoS" Thus they know for a fact that something about the map is fucking with their memory or perception. Hence "Someone said a rude word."
5MondSemmel
They might not ordinarily have such patience, but Luna's appeal to their pride should've helped. Plus this involves the Weasley twins telling tales of their escapades, which they surely enjoy.
3alexgieg
This bit bothered me too, it's pretty out-of-character for them. I think they'd indulge her going over it once, but not twice or thrice, so it'd be better if @lsusr rewrote this chapter to add some reactions of theirs and some reason they'd accept it, and her managing to figure it out after that one single attempt. One option might be her figuring out one smaller-ish thing at her first attempt, let's say, the Chamber of Secrets, making them excited. Then drop the second attempt, moving straight to the third attempt, where the two truly secret areas are revealed, and adding their reaction at this.
3DPiepgrass
Especially as no character has given a reason to suspect any sort of "perception filter" a la Doctor Who. Incidentally, didn't Hogwarts often reconfigure itself in HPMOR? Seems odd, then, that Fred/George believe they've seen it all.

Wouldn't increasing the number of offenders improve the effectiveness of brinkmanship compared to extortion? Since the victim is only bound by a deal with the offender, they can surrender and reject future deals from the other potential offenders. This makes surrendering safer and therefore more attractive compared to extortion, where surrendering to one extorter would invite more extortions.

The moral of Ends Don't Justify Means (Among Humans) was that even if philosophical though experiments demonstrate scenarios where ethical rules should be abandoned for the greater good, real life cases are not as clear cut and we should still obey these moral rules because humans cannot be trusted when they claim that <unethical plan> really does maximize the expected utility - we cannot be trusted when we say "this is the only way" and we cannot be trusted when we say "this is better than the alternative".

I think this may be the source of the repul... (read more)

I may be straying from your main point here, but...

Could you really utilize these 60 seconds in a better, more specialized way? Not any block of 60 seconds - these specific 60 seconds, that happened during your walk.

Had you not encountered that open trunk, would you open your laptop in the middle of that walk and started working on a world changing idea or an important charity plan? Unlikely - if that was the case you were already sitting somewhere working on that. You went out for a walk, not for work.

Would you, had you not encountered that open trunk, fi... (read more)

Should arguers be encouraged, then, to not write all the arguments if favor of their claim in order to leave more room for those who agree with them to add their own supporting arguments?

This requires either refraining from fully exploring the subject (so that you don't think of all the arguments you can) or straight out omitting arguments you thought of. Not exactly Dark Side, but not fully Light Side either...

The difference can be quite large. If we get the results first, we can come up with Fake Explanations why the masks were only 20% effective in the experiments where in reality they are 75% effective. If we do the prediction first, we wouldn't predict 20% effectiveness. We wouldn't predict that our experiment will "fail". Our theory says masks are effective so we would predict 75% to begin with, and when we get the results it'll put a big dent in our theory. As it should.

Maybe "destroying the theory" was not a good choice of words - the theory will more likely be "demoted" to the stature of "very good approximation". Like gravity. But the distinction I'm trying to make here is between super-accurate sciences like physics that give exact predictions and still-accurate-but-not-as-physics fields. If medicine says masks are 99% effective, and they were not effective for 100 out of 100 patients, the theory still assigned a probability of  that this would happen. You need to update it, but you don't have to "thro... (read more)

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