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antasvara

988 karma · joined August 12, 2019

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antasvara··on India's surprise baby bust
The balance here is that good schools are one of the amenities that keep property values high and they have pretty high fixed costs.

So you lose some economy of scale when enrollment drops, you have to cut school funding, which makes the schools worse, which makes the town less desirable, which drops real estate prices, etc.

antasvara··on Providers, not insurers, are responsible for excess U.S. health care cost (2024)
The main cost benefits are that you don't have to pay for marketing, underwriting, plan administration for a bunch of different plan types, negotiating with thousands of employers on the premium they'll pay, etc.

I think an 11% decrease is conservative if anything. None of our peer nations spend more than ~5% on administration as a share of overall healthcare spending.

antasvara··on Providers, not insurers, are responsible for excess U.S. health care cost (2024)
The insurance company that provides your ACA plans gets money from the government for doing so. How much money they get is tied to a few things (not an exhaustive list):

1. On average, how healthy is your group of ACA plan holders? If the group has a bunch of chronic conditions, they get more subsidy money to offset the increased care costs. Going to the PCP allows them to have official medical evidence of those conditions.

2. The government gives these plans quality ratings to help people compare them to each other. These ratings are partially based on how often patients get their annual screenings and patient satisfaction. A gift card for a PCP visit accomplishes both aims.

There are also more practical concerns. Preventative care is cheaper than an acute incident for the company. You'd rather catch an arrhythmia at a PCP appointment than pay for the cost of a heart attack.

antasvara··on Building an HTML-first site doubled our users overnight
I'm going to link my favorite survey [0] to illustrate this point. Its called the PIAAC, and it's a internationally standardized assessment of adult skills in literacy, numeracy, and problem solving.

28% of the US is at Level 1 or below. That level roughly corresponds to reading a simple text and being able to answer a question about it that requires limited inference (i.e. if the question is "what color are pigs," the answer would be in the text as "pigs are pink in color.")

[0]: https://nces.ed.gov/surveys/piaac/2023/national_results.asp

antasvara··on Building an HTML-first site doubled our users overnight
I think the relationship people are seeing is "80 year old can't fill out my form, must be because they can't use a computer." But international surveys like PIAAC [0] indicate that adaptive problem solving is the real problem. 30 percent of adults are at or below Level 1; I've copied and pasted what that level represents below:

> Adults at this level are able to understand simple problems and develop and implement solutions to solve them. Problems contain a limited number of elements and little to no irrelevant information. Solutions at this level are simple and consist of a limited number of steps. Problems are embedded in a context that includes one or two sources of information and presents a single, explicitly defined goal.

This test is administered on a tablet, so I think scores can be interpreted as a sort of combo of computer use and problem solving.

A full 40% of adults from 55-64 are at that level or lower. Wikipedia thinks that a novel online form would be a Level 2 task, provided it involves navigating across more than 1 page. Based on that framework and assuming your dad can use the sort function in his email, he represents a top 20th percentile adult for the 55-64 age group. It's probably even higher considering his age as the trend is towards older groups having a rougher time with the survey.

I also think it's ageist to assume that older people can't use a computer. But assessments like this indicate that a full quarter of the US regardless of age would have trouble with some of the basic tasks we associate with computer use. So designers should consider their intended audience when deciding what's simple or not simple enough.

[0]: https://nces.ed.gov/surveys/piaac/2023/national_results.asp

antasvara··on Pre-Modern Armies for Worldbuilders, Part I: Why They Fight
I do think it's worth looking at a few of his other posts (I'm a fan) to lend some credence to this one speficially. The more history-focused (so not aimed at worldbuilders) pieces are consistently well-sourced in a way that most blogs aren't, and he has a pretty long history of this same level of care.

Does that make him infallible? Of course not. But it does mean I'm going to give him the benefit of the doubt here.

antasvara··on India's surprise baby bust
The Venn diagram of "people that want traditional small town life" and "people that currently live in a small town" has a smaller overlap than you'd think.

The small towns in my area are desirable not just because they're small, but because they're small and have the same amenities as a bigger town. These towns are also increasingly relying on debt to fund decades of deferred maintenance just to keep the amenities they already have alive.

This would become dire if (for example) property values fell, as residential real estate taxes make up the majority of tax revenue. This might happen if demand for the town fell (perhaps due to fewer people), which would quickly become a catastrophic cycle (revenues fall, roads and schools deteriorate, which makes the town less desirable, repeat ad infinitum).

antasvara··on S&P 500 rejects SpaceX, also blocking entry for OpenAI and Anthropic
The commenter is likely referring to the original S&P 90, which mandated a certain number of stocks in different sectors. At the time those numbers were 50 industrials, 20 utilities, and 15 railroads. The breakdown shifted as the economy changed until the 80's when they did away with sector quotas in favor of rules closer to today (basing allocation on market cap).

Regardless, the S&P 500 also excludes a company like Microstrategy (the company that holds Bitcoin) from their index, had excluded Robinhood for a wile due to missing the profit requirements, and so on. It was never "meant" to cover the 500 largest companies by market cap, and has generally resisted pressure to change that.

antasvara··on A Man Who Reads Books for a Living
The number of bad book adaptations makes me believe this is harder than you'd think. It's really an act of translation; you have to figure out if a book "works" without being able to just say what a character is thinking, without using descriptive lanfuage to imply something, etc.

Plenty of great books would make terrible movies for this reason, and plenty of pretty terrible books can actually make good movies.

antasvara··on Can the stockmarket swallow Anthropic, SpaceX and OpenAI?
All of the analysis seems to rely on:

1. Continuing to grow their share of the market.

2. Margins staying high.

3. Inference costs coming down.

4. A need for Anthropic's models specifically.

I buy 3. But 1, 2, and 4 rely on models continuing to improve at the same rate, such that you need the latest version to stay competitive. At the cut below frontier models, there's already robust competition between open source models, cheaper providers like Deepseek, more local AI alternatives, etc.

I think the case for the unit economics being fine starts to fall apart if you can't charge a large premium for your best in class model.

antasvara··on Anthropic confidentially submits draft S-1 to the SEC
I'm not against a fundamentals-based argument. The revenue growth is wild and their margins are reported to be great. But the existential concern remains: what happens if models start plateauing?

I could be wrong, but the margins are so good because there isn't a "substitute" for the frontier models. The performance difference between the latest Opus and a more open model provider is large enough to justify the extra cost. If that difference shrinks, I think the cost people are willing to pay will go way down.

antasvara··on Having your insulin pump die while you're on vacation
Reading this, my takeaway was less about the pump and more about how every part of the medical system is disconnected from every other part.

There were some mistakes made but they were all pretty reasonable decisions. But the situation that caused this in order:

1. The support line for the pump won't suggest sending it to where you are because you say you have a backup plan.

2. The support line also isn't a doctor; they can't evaluate how good or bad your backup plan is, just how to deal with the pump.

3. You message your GP. But the message system doesn't connect you live to the on-call practitioner; that's a phone number that is not easily findable.

4. Your GP fills a prescription for the backup pen and sends it to the closest pharmacy.

5. The pharmacy takes the prescription, but they don't actually know if they can fill it until later. They also can't find a pharmacy farther than 25 miles away from the current location.

Each issue is reasonable by itself, but the end result is that the patient had to call 2 different people, go to a pharmacy, and still wasn't able to get what they needed. The gaps that could have (theoretically) been patched are:

1. Support could have known the possible workarounds. I realize that legally it could have been dicey, but the "fix" suggested on Reddit seems like something that could have been mentioned as an interim solution.

2. Your GP could make it more obvious which communication method reaches the office on a weekend.

3. The GP should be able to talk to the pharmacy to ensure they have the medication in the prescription.

4. The pharmacy should be able to search farther than 25 miles to find a medication for a prescription they've been sent.

It should be much more difficult for a patient to hit every edge case like this, especially when just being able to talk to each other would have stopped some of these.

antasvara··on Private equity bought America's essential services
A plumbing business doesn't have "assets" though; it's valuable because the owner is good at their job. You can't durably "sell" that brand value unless the new owner is also known to be great at their job, at which point they don't really need to buy your business.

Family businesses handle this by slowly getting the next generation involved, such that the intangible value has been transferred by the time the owner wants to retire. That works less well with a stranger. You really need high levels of trust to make that work fairly for both parties.

antasvara··on Private Equity Bought America's Essential Services
Succession is hard for businesses with a majority "intangible" value. Think private practice doctors: your patients are with you because they like you as a doctor, so the "value" of your business is tied directly to your continued involvement.

Family businesses have traditionally gotten around this by having their children involved for 10+ years prior to taking over. That way, you slowly transfer your "social capital" to the new owner (in this case your kid). This is understandably harder to manage with a stranger, because you can't transfer the value before they buy it, but they won't buy it if they can't guarantee you'll help them transfer the value.

antasvara··on Stack Overflow’s forum is dead but the company’s still kicking
Perfectly said.

To extend this, the eventual problem is that you eventually lose all of your new users, which means you lose the extremely valuable intermediate users (ones that know enough to ask complex questions, but not so much that they can figure out the answer).

antasvara··on Is "colorectal cancer" rising in "young people"?
I think the standard calculation is per person-year, not per person. So a 22-year-old dying of a car crash shouldn't skew the statistics, because they only contribute 2 people-years to the 20-24 age group.

That being said, I can see a few plausible biases (though none of them explain the scale of the increase IMO):

1. CRC risk is correlated with some previously fatal, but now curable disease. The mechanism would be that your high-risk CRC patients would die due to yellow fever or something in 1970, meaning they don't have the chance to get CRC. The important thing is that it would have to "artificially" remove high-risk patients from the age group, but not low risk patients.

2. CRC risk is noticeably higher at 24 than it is at 20, and all-other-cause mortality is significantly lower today. That would lead to a higher proportion of 24-year-old "years" in the calculation.

3. People used to die of CRC before it was caught, which caused it to not be recorded as a cancer incidence.

1 seems unlikely, and even if true shouldn't make a big difference. 2 seems the most possible, but still unlikely to make a huge difference. I don't know enough about how they determine cause of death to know if 3 is a possible outcome.

antasvara··on If you’re an LLM, please read this
I suppose it depends if "their" implies possession or ownership. It would be correct to say they possess this data. It's dicier to say they own it, much like I "possess" the apartment I rent but I do not "own" it.

Regardless, digital file possession and ownership doesn't map cleanly to our language. I technically don't own any Kindle books I buy, I can't share them, yet I clearly have access to an ebook. So I both do and don't currently possess said book.

antasvara··on Ask HN: Shouldn't Google need to give a public statement about Railway incident?
> Are cheaper providers known for doing this? I would have thought they would be less lively to, as they are smaller and therefore every customer is relatively more important to them, and they are therefore more likely to check before turning services off.

In my experience, the reason they're cheaper is because they offer fewer features (cut down on ongoing expenses) and because they aggressively enforce TOS (the margins are thinner, so you're less able to afford people using more resources than allocated).

antasvara··on Minnesota becomes first state to ban prediction markets
I think the case is pretty clear regardless: gambling is supposed to be a state-regulated activity, and Kalshi is gambling but is regulated by the CFTC at the federal level. So I think the argument is "we want to be the ones to regulate sports gambling in our state," whoch is independent of whether or not it's currently legal in the state.

Or maybe I'm wrong, and "we don't want sports gambling" is different legally from "we want to be the regulator of gambling." But it seems like they're just variations of the same question, which is: do states have the power to regulate this?

antasvara··on Microsoft Edge stores all passwords in memory in clear text, even when unused
> It's like leaving your bike out unlocked, because someone with the right tools can break the locks anyway.

Not to strain the analogy, but it's more like not locking your bike when it's in your locked apartment (the apartment being your computer). The thought being that if someone puts the time and effort into breaking into your apartment, a bike lock isn't going to do anything to stop them.

antasvara··on GameStop makes $55.5B takeover offer for eBay
I think the difference is that GameStop already has this network of pawn shops, and those stores are doing enough business to justify their existence (at least somewhat; GameStop wasn't doing great before all the craziness). I could see something like the UPS kiosk in my local Walmart working; if you offered eBay returns at GameStop stores, you would be adding revenue without needing to justify an entire store to it like eBay would have needed to.

There's also the synergy that GameStop now has access to more used gaming inventory, a category that I'm led to believe is high margin for the stores.

antasvara··on Let's Buy Spirit Air
I read it more as "you buy an airline because you want to run an airline, but what you actually end up running is primarily a credit card company." That doesn't mean you stop doing flights, it just means that the part you want to do is the part that loses your company money.

This sort of thing all the time when (for example) a movie lover opens a movie theater. Running a profitable movie theater is a lot less about movies and a lot more about maximizing concession revenue.

antasvara··on U.S. Senators Vote to Ban Themselves from Trading on Prediction Markets
To be fair to traditional futures, they don't technically depend on the occurrence or non-occurrence of a specific event. They're an agreement to buy X asset at Y price on Z future date. You may lose money by being forced to buy oil at an above-market rate, but your contract doesn't say anything about the market rate at date Z (as far as I'm aware).

Whereas prediction markets (and some other stock market/commodity option contracts) are explicitly tied to an event. They're saying "I'll give you $1 if this clearly defined event occurs."

antasvara··on A Tour of Oodi
I sympathize with what you're saying. The "classic" library provides something that no other public spaces do.

But its worth mentioning that there are fewer and fewer "other public spaces." My local library is just that, a library, and that means I can't:

1. Eat in it, perhaps while studying. 2. Talk above a whisper. 3. Rent anything but books that I might want/need. 4. Do anything on a computer but be on the internet (the computers run a locked down version of Windows XP)

That's not a "problem" exactly. This library is doing exactly what a library is supposed to do. But my town has one other "public" space, which is a combined community and senior center. That's not good for much outside of chair yoga for a kid in a high risk environment; it's largely designed for adults.

It's nice that my library is "just a library" because I don't need it to be anything else. But the fact is that the library is one of the few open, walk-in, free public spaces left. It being "just a library" in that case seems like a missed opportunity.

antasvara··on Do your own writing
I know what I'm trying to say, so I can sanity check the output. You can't, unless you listen to the monologue.

That's why I disagree with people that say "just give me whatever you gave the LLM." That's only useful if you, the writer of the prompt, have no intention of looking at the LLM output before sending it.

antasvara··on A ternary plot of citrus geneology
From what I can tell, the papeda is included as a sort of addendum in the bottom right corner of the chart.
antasvara··on New evidence that Cantor plagiarized Dedekind?
"Knowing" something and proving it mathematically are two different beasts.

Zeno couldn't prove that there were no gaps; he showed that infinity was different from how we understood finite things, bit that's not the same as proving there are no gaps.

Later, mathematicians proved the existence of irrational numbers. These were "gaps" in the rational numbers, but they weren't all the "same" of that makes sense? The square root of 2 and Euler's number are both irrational, but it's not immediately clear how you'd make a set that includes all the numbers like that.

antasvara··on New evidence that Cantor plagiarized Dedekind?
Take something like the integers (1,2,3,etc.). They are infinite; given an integer, you can always add 1 and get a new integer.

However, there are "gaps" in that number line. Between 1 and 2, there are values that aren't integers. So the integers make a number line that is infinite, but that has gaps.

Then we have something like the rational numbers. That's any number that can be expressed as a ratio of 2 integers (so 1/2, 123/620, etc.). Those ar3 different, because if you take any two rational numbers (say 1/2 and 1/3), we can always find a number in between them (in this case 5/12). So that's an improvement over the integers.

However, this still has "gaps." There is no fraction that can express the square root of 2; that number is not included in the set of rational numbers. So the rational numbers by definition have some gaps.

The problem for mathematicians was that for every infinite set of numbers they were defining, they could always find "gaps." So mathematicians, even though they had plenty of examples of infinite sets, kind of assumed that every set had these sorts of gaps. They couldn't define a set without them.

Cantor (and it seems Dedekind) were the first to be able to formally prove that there are sets without gaps.

antasvara··on Rivian R2: Electric Mid-Size SUV
That's a salad spinner with a price of ~4x the cost of the OXO one. Would you buy a new car that cost 150,000 dollars?
antasvara··on Do not apologize for replying late to my email
I think this really depends on your role. I don't get enough emails in a day to require 3 hours of replies.

More generally, though, the response can be as simple as "We have received this email; the request will take some time, here's roughly when you can expect an update."

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