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em500

6,949 karma · joined February 28, 2016

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em500··on Unpowered SSDs slowly lose data
> Honestly I can’t quite believe mlc works at all, let alone qlc. I do wonder why there’s no way to operate qlc as if it were mlc, other than the manufacturer not wanting to allow it.

Manufacturers often do sell such pMLC or pSLC (p = pseudo) cells as "high endurance" flash.

em500··on All praise to the lunch ladies
Elementary schools without any kitchen or cafeteria, kids bringing meals (bagged sandwiches) from home and eating at their desks, is still the standard in probably 95%+ of the elementary schools in the Netherlands in 2025.

It's not clear to me if there is any problem to be solved here.

em500··on All praise to the lunch ladies
In the Netherlands no elementary schools have any cafeteria, kitchen or lunch area at all. Kids bring their own lunchbox, with usually some sandwiches, fruit and water, and eat inside the classroom.
em500··on The overengineered solution to my pigeon problem (2022)
I did pretty much the same thing, after I observed that they'd always land on the railing first before hopping into the balcony. A thread worked very well as a deterrent. I guess they're just picking someone else's balcony now.
em500··on Movie posters from Ghana in the 1980s and 90s
Or how about just “from Ghana”?
em500··on US hits $38T in debt. Fastest accumulation of $1T outside pandemic
The nitty gritty is here: https://bidenwhitehouse.archives.gov/wp-content/uploads/2023...

The infographics version is here: https://www.cbo.gov/publication/61181

The TLDR is: Social Security, Interest payments, Medicare, Defense, Medicaid, Income Security Programs, and then a whole hodgepodge of Other. Politicians can try to cut a bit in Other or maybe Income Security, but the other big blocks are nearly untouchable Third Rails.

em500··on Female spies are waging 'sex warfare' to steal Silicon Valley secrets
Maybe I'm missing something, but what does the rural Chinese countryside have to do with clubs in Singapore?
em500··on Vaclav Smil on why there will be no energy transition
> We use 55% more energy than in 1997? Where is all that going?

Mainly to rapidly developing countries like China and India. Europe and US have decreased fossil fuel consumption a bit, China and India have increased 3 fold.

> I have no problem going back to my 1997 lifestyle and cant point to much explaining this growth.

Approximately nobody in develping countries feels that way.

em500··on Chen-Ning Yang, Nobel laureate, dies at 103
Maybe not that crazy given that most of their academic work was only published in Chinese until about 2 to 3 decades ago.
em500··on SQL Anti-Patterns
Still waiting for the definitive article on how using the term anti-pattern is an anti-pattern.
em500··on ChatGPT – Truth over comfort instruction set
I usually instruct the LLMs to assume to Vulcan / Spock personality. Now that computers can more or less pass for a human, I realize I don't want them to sound human.
em500··on Western executives who visit China are coming back terrified
> The article shows that the west, on a per capita basis, has nearly 300% the robots that china does. Germany by itself has 449 robots per 10k compared to china's 567 per 10k.

I think you misunderstand the metrics. The listed numbers are already per capita, adding them together does not increase the per capita number for the aggregate.

em500··on The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2025
I'll add the obligatory Dilbert take: https://verisoeconomica.wordpress.com/2022/10/10/the-2022-no...

Sure, it's paid by the Swedish central bank instead of the Nobel foundation, and it wasn't established by Alfred Nobel himself. Nobody cares. Value of such awards depends entirely on peer recognition, not on who pays or what exact labels they carry. Selection for economics is done by the Royal Swedish Academy of Sciences, like the other science awards.

em500··on Daniel Kahneman opted for assisted suicide in Switzerland
I'm surprised and fascinated that this is apparently legal in Switzerland. The Netherlands, famous for allowing assisted suicide, has pretty strict criteria for this[1].

In particular, the physician must "be satisfied that the patient’s suffering is unbearable, with no prospect of improvement", which from this article sounds far from the case here.

[1] https://www.government.nl/topics/euthanasia/is-euthanasia-al...

em500··on Igalia, Servo, and the Sovereign Tech Fund
A pipe dream. Android (with significantly higher market share in Europe than iOS) has no limits on alternative web engines. But all the critical mobile security and payments apps are built on Android/Play Services, not in mobile browsers.
em500··on Igalia, Servo, and the Sovereign Tech Fund
Sure, nothing strictly requires iOS/Android in paper specs and in presentations. But we all now that the only working practical implementations will be one iOS/Android. I mean, look at the actual code in the (Microsoft) github repo.

The EU forced Apple to open NFC for third party payments, which is great. But all the banks in the Netherlands only have working card payments in Apple and Google Wallet. Including the largest bank (ING), that used to have independent in-app NFC payment on Android (where NFC was always open) but seems to have capitulated and now only offers it via Google Wallet.

em500··on Igalia, Servo, and the Sovereign Tech Fund
A good initiative, but there seems to be nothing on the horizon that can limit the increasing dependence on iOS / App Store and Android / Play Store / Play Services in European citizens' lives, and Microsoft in European corporate and government desktops. If anything, policy makers seem to prefer to increase the dependence, e.g.

https://commission.europa.eu/strategy-and-policy/priorities-...

https://github.com/eu-digital-identity-wallet/.github/blob/m...

em500··on California passes law to ban ultra-processed foods from school lunches
> Now, take that tomato and can it straight after harvest, together with a bunch of preservatives.

What preservatives are we talking about, citric acid? I checked the ingredient lists of Mutti and Heinz canned tomatoes (EU resident). Mutti contains exactly 2 ingredients: whole tomatoes and tomato juice, Heinz 3: whole tomatoes, tomato juice and citric acid.

em500··on Hedge funds have to be big
> Weird numbers to pick here. I know like 10 guys off my personal contact list who can do 4 Sharpe at 5 million easy. The "game" in hedge funds isn't 4 Sharpe at 5mio AUM, its 1.5-2 Sharpe at 1b AUM or 1 Sharpe at 10b AUM, b

So how do they do that? I'm a lot closer to 5 million than than 10b...

em500··on Implementing a Kalman Filter in Postgres
Right, in addition to the position you usually want the velocity, and sometimes also the acceleration, in all dimensions. More ambitious (or optimistic) practitioners could add more sensor measurements, like gyroscopes.
em500··on Implementing a Kalman Filter in Postgres
This is nfortunately limited to 2-dimensional state/measurements. In this case the covariance matrix is only 3 numbers, so the required linear algebra can be easily be done in a loop. The generic Kalman handles arbitrary dimensions, but requires general matrix multiplication and inversions, which are not easy to implement in Postgres.

Still, 2d is a useful special case, and if it addresses the problem at hand, there's no need to overbuild. (Even the 1d Kalman filter, which often boils down to exponential smoothing, is a useful special case.)

em500··on Why are interviews harder than the job?
Valid points, but I think the most obvious reason is that (at least the recognizable) employers are swamped with applications that all look great on paper, which likely got much worse with the rise of good LLMs. Compared with similar high paying carreers, like medicine (multi-year residency) or high finance (solving math and probability problems on the spot), the hiring process for software engineers isn't especially gruesome.
em500··on Shiller PE Ratio
> what are ETFs and/or financial products that take this into consideration?

They often have something like "Value" in the name, e.g. VTV, IUSV, SPYV. While not explicitly targetting now Shiller PE, they usually have significantly lower PE than "growth orienten" stocks (such as most of the tech megacaps that currently dominate SP500, VT and other market cap weighted funds). What exactly goes into "Value" funds is either too opaque or takes too long to explain in a comment.

> what difference does it make in terms of volatility and/or expected returns to invest in something like SP500 or $VT compared to Shiller-PE-adjusted products?

Volatility is likely (but not certainly) lower. Expected returns: convincing narratives could be told either way, but nobody knows with any certainty.

> does this matter in the long-term, or better, when exactly is "long-term" long enough so that Shiller PE doesn't matter and one can just go with SP500/$VT without sleepless nights?

Again, nobody knows, and you should be skeptical about pretty much any opinion that smells like investment advice. The posted graph shows that the current S&P 500 PE (or some approximation thereof, SP500 didn't exists until the 1950s) is high by historical standards. What to make of that is open to different interpretations.

Many people might intuit some sort of mean-reversion process behind (Shiller-)PE, but

- it's unclear which to "mean" and at what time frame it would revert

- as another poster pointed out, mean-reversion could take place by E going up as well as P going down

em500··on Qwen3-Omni: Native Omni AI model for text, image and video
Not to mention, Tiananmen Square is one of the major tourist destinations in Beijing (similar to National Mall in Washington DC), for both domestic and foreign visitors.
em500··on UK Millionaire exodus did not occur, study reveals
Yup, In the Netherlands the de facto wealth tax starts applying at €58k of assets (to be lowered to €51 next year), with exemptions for primary residence, pensions and bank savings.

It started off at 1.2% about 2 decades ago (legislated as a 30% rate on a deemed 4% return), but has increased to 2.1% last year (36% rate on deemed 5.88% return), and in the current government budget proposal is set to increase to 2.8% next year (36% rate on deemed 7.78% return).

em500··on Privacy and Security Risks in the eSIM Ecosystem [pdf]
At least in Europe and the US, you can call emergengy numbers (112, 911) without any SIM card installed. So your phone can certainly connect to the cellular network without a SIM.
em500··on Why, as a responsible adult, SimCity 2000 hits differently
Alongside increased bike infrastructure funding, the Dutch effort certainly did involve disincentivizing car use by higher fees (both parking and ownership), reducing parking availability (and also non-parking car accessibility), and slowing down car speeds (speed bumps, cameras, narrowing roads, calming road design, reducing city speed limits to 19mph), and generally reducing car allocated space. It's typically done during scheduled road maintenance, where separated bike lakes are installed, often by converting the street parking space or turning a two way street into a one way (for cars) street or even banning car access.

See e.g. https://www.youtube.com/watch?v=ARjrpb_FOcs (skip to about 5:00 or 8:00 so get a sense of some of the redesign).

em500··on Why, as a responsible adult, SimCity 2000 hits differently
Then how do you explain that Amsterdam, which is in Noord-Holland, is by far the largest city in Noord-Holland, and is far more dense and car hostile than the rest of Noord-Holland, actually has a higher TFR (1.43) than the rest of Noord-Holland (1.29 total, so lower for Noord-Holland ex-Amsterdam)?
em500··on Why, as a responsible adult, SimCity 2000 hits differently
> Now with kids, I understand why "Americans love their cars" - it switched form a derogatory statement to one of understanding. There's a reason that "ban the cars" posters never mention a partner or children in their bios.

This seems very different from the large anti-car movement in the Netherlands in the 1970s (which eventually led to massive investments in bike infrastructure and car restrictions in the cities).

There was significant parent involvement, touting the memorable slogan "Stop de Kindermoord" ("Stop the Child Murder").

https://en.wikipedia.org/wiki/Road_transport_in_the_Netherla...

em500··on Scammed out of $130K via fake Google call, spoofed Google email and auth sync
Google/Chrome Password Manager?
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