skysight-inc/HackerNews huggingface dataset:
I'd say this is a sub-category of the saying: "There is nothing in this world that an MBA can't and won't make worse".

It happens when people change perspectives from building and sustaining businesses to exploiting and squeezing every employee, supplier, and customer for the last drop.
Anybody else see a resemblance to the awful Microsoft Teams emojis?
The document broke my BS detector; the needled appears to be stuck in the red.
My biggest issue with A/B testing isn't even mentioned here... gaslighting your customers is absolutely not OK. Particularly with older people, the constant "where the f..k did Outlook now put feature XYZ" (in the case that comes to my mind, the CC bar which used to be tab-reachable, now you have to tab+space or manually click on the tiny gray "cc" letters) onslaught is just absurd. When you change how applications behave without telling the users, it's a direct attack on their muscle memory at best and makes them question their sanity at worst.

My second biggest issue is: it's rare that companies offer actual, live-human support these days anyway. When marketing adds A/B testing, shit becomes really annoying if something breaks as a result - usually the phone lines are suddenly flooded, the agents have no idea what has happened either and try to reproduce and figure out what's going on (and sometimes can't because they aren't part of the test group!), and so even people who haven't been in the testing group are going to be very pissed off.

IMHO, A/B testing without explicitly notifying the customers in advance should be banned by law, and that ban be harshly enforced. Customers are not guinea pigs, and with the rise of elderly people on the Internet this becomes an actual public safety issue (as ever-changing stuff makes it easier for scammers!).
> Creating the kind of world we want to live in should be the sole purpose of rules and regulations.

I don't think anyone would disagree with that. I think the point is that Uber can do shitty things that should be punished and provide a good service that should be encouraged.

To put it another way, the world I want to live in gives you a fair chance of running a competitive business without having to be mega rich and chummy with the leaders of the countries you operate in.
(This comment refers to the text questions, not the picture one where it clearly gives instructions to memorize)

Are we to assume that the real test doesn't allow the taker to go back to the passage? Many passage-based questions are directly answered in the text, so is this test administered in a timed way where passages are shown then removed, to test recollection of detail?

Or is it really testing just ability to extract the detail from the passage based on the question, with full "open book" access to the passage?

(Edit: corrected typo, added clarification)
Equating shitcoin pumping to central banking is hilariously absurd.

While I do agree that central banking has gone too far, central bankers--at least in developed countries--are not on some blatant mission to rob people of money for their own enrichment. Sure corruption might happen on the fringes, but it's not the primary intent.

Pump and dumps are pump and dumps. The primary mission is to fuck others over.
I think that has more to do with being able to play with open fire
Oh, joy! More anti-remote propaganda. Maybe people are just tired of killing themselves to live?
almost everyone in crypto is a grifter. from the VCs, to the guy making this ad to the guy posting on twitter about it.
So you have never been refused the ride by a taxi driver? Or being left waiting by a waiter?
You're completely missing the point of the story that is coming out here.

No matter if Uber is better/worse for the passengers, they cannot (shouldn't?) exploit their own employees. It's not worth allowing any human to be exploited, even if you get a better service for something.
Pointing out "the question is wrong/invalid/badly worded" isn't analysis paralysis

Could be, of course, that they want to test how you deal with that... But I have a feeling that's beyond the point here
> Creating the kind of world we want to live in should be the sole purpose of rules and regulations.

And the first requirement for this is that rules and regulations are followed.

Establish a culture in which there is no consequence for disobeying the rules and regulations and I guarantee that the most regular offenders are not those who's practices you agree with.

The best case scenario here is that there are heavy consequences for those who broke the rules, but the rules are revisited and altered to make things more in line with consumer needs.
It might be emergent, natural even, but we are better than this. A lot of balls have been continuously dropped by a lot of people. Small changes at the right time could've ended up with humanity prospering in the 21st century. Now between hypercapitalism, religious extremism and runaway climate change the James Webb telescope is one of the few things that still let's me keep faith in humanity.
Each of those places has a very different culture.

Buddhism is not a monolithic entity. It took on vastly different forms in each of the places it landed. Chinese Buddhism and Tibetan Buddhism have different scriptures, different approaches to bodhisattvas, different paths to awakening.

Was it disrespectful of the Chinese to take Buddhist teachings when they arrived and transform them to fit their cultural context? Should we go eliminate Buddhism from China because it's not native there and they twisted it to fit their culture?
Nice, another marker to know the date when software libraries were last updated (a recent one is the Swaziland -> Eswatini name change in 2018).

It can also be used as marker of the health of your opensource locale library.
Dude, it’s a product owned by a private company. Do they owners not have rights to you? To compare it to murder is like the slipperiest slope ever.
I agree with complaints about the taxi industry in many cities. However this article is about the workers at these companies, not the consumer experience.
Tulip mania is the go-to comment for every post about crypto on HN, you don't need the link.

Shocked no one called this a Ponzi scheme yet.
I was at the gym yesterday (or maybe the day before) and saw on one of the TVs that Fox News was running this same story. Throw "Netherlands work from home" into your favorite search engine and you'll see that this story has been syndicated far and wide.

I cant help but to find the timing of this coincidental given that other story coming out of the Netherlands (civil unrest and protest from the farmers).
Ah right, I got my units wrong! Good thing I'm not in middle school any more!
Accute evil, what did you expect?
What about UPDATE performance?

Your article and the parent one are explaining performance improvements related to INSERT and SELECT but what about the improved performance for UPDATE?

I wrote a long comment[0] on yesterday’s PostgreSQL post related to column order optimization with regards to UPDATE.

My information was 20+ years old and I figured it was horribly outdated but these articles make me think it could still be true.

The TLDR is you want to put variable length columns at the end because it makes UPDATE more efficient. My theory was it’ll be less likely the DB would need to move data around when updating the variable column contents.

Less data being moved = improved performance.

Seeing these articles means I was right with regards to improved performance of INSERT/SELECT but I wonder if I’m right about improved UPDATE performance.

Anyone know?

[0] https://news.ycombinator.com/item?id=32055596
s/when/if/
> While I find some parts of your sympathetic, conflating the left with academia is not really a valid approach.

The parts of academia that are relevant to this discussion (humanities and social sciences) are certainly dominated by the left.
Readable code is better than efficient code
More like 5 seconds - (1.5e6 km)/(300_000 km/s) is 5.0 seconds. This makes sense as the Sun is 8 light-minutes away from Earth and JWST is closer to Earth than the Sun.
I did some digging and found that we’ve had more people leaving the work force than entering it where I live. This is hitting jobs on the bottom end of pay first.
Besides the "kill switch" story which may or may not be illegal depending on what actually happened, beyond the layers of journalism - I want to comment on the War on Workers.

Currently in my country there aren't a lot of places to work if you're young and untrained. But services like uber, bolt and various food delivery end up creating an unofficial floor for the wage of somebody willing to work. You don't need credentials or exams - you just need basic skills, time and will - and at least with food delivery services, you're a bicycle and 24 hours away from making money.

Now, maybe where some of you live things are different. Maybe you can afford the extra friction of employment, maybe you don't need that safety "wage floor" because anybody can get employed at any time. Maybe you live in heaven, I don't know. I was born beyond the Iron Curtain and I'm actually ready to believe that some countries somewhere are heaven. But everywhere I could see with my own eyes: there are people that can make money with this kind of freelance services, that would most definitely suffer if formal employment was the only game in town.
I had 0 issues with taxis in Romania, but I wasn't in Bucharest
I had a BMW i3 2017. Last year one of the front turn signal lights broke. So I went to the shop to ask for a replacement bulb.

There I learned you can't just replace the bulb, no. The whole light module had to be replaced, $350 + work.

These things are getting ridiculously integrated. Wouldn't surprise me if the seat heaters had some integrated temperature controller unit just because.
It's not a casino for those who own the games.
Marxism was a fringe ideology without any real political power before 1905, probably even before 1917.
As a Mac user from the beginning I was about to say "that's an iPad, not a Mac", but lo and behold!

On a Mac now the alphabetic and digit keys do not autorepeat when held but instead pop up little menus of variants. Shifted alphabetic keys get different variants appropriate to their letter. Sadly for TÜRKİYE the single dot capital "i" is not one of them.

At least for my settings, none of the digits get options, nor do they autorepeat.

A completely useful overloading of "long press" of a keyboard key, but completely undiscoverable unless you make long strings of "vvvvvvvvv" as a pointer or some such, then you get a disappointment instead of what you wanted, but you will be enlightened.
>> It's difficult to feel bad for the legacy taxi industry. It's one of the most corrupt industries and totally resistant to market entrants.

Comments like this are frustrating. The taxi “industry” is made up of lots of small players in every city and small town around the world, each with different regulations and offerings. It’s not some massive conglomerate. Your experience with taxis in the place you use them can be completely different to the experience one town over not to mention in another country.
A/B testing helps you maximize a metric, not make customer experience better. Those are different things.
Russia is definitely not European from business perspective; it’s closer to North Korea now.
yes. the 12L -25L category is in T1, T2 but the rest of the country is huge and those are a drop in the bucket numbers.

the link you shared, the top 20 cars by volume are all in the sub 12L range so that is what i was saying.

https://www.rushlane.com/maruti-suzuki-chairman-says-bharat-...

yeah, it was maruti who said that so there you go.

>Move up the price range and you start to see nonsense (in this country) features like heated seats. My E-class has a panoramic sunroof which I never open because the sun is scorching here, and the glass' greenhouse effect cooks everyone inside so the AC has to work harder.

i do not own a car. no one in my family does. you say your e-class so your income bracket is already in the top %.

>People have moved past the ₹12 lakh mark a while ago. It's more like ₹25 lakhs now. I see plenty of Hyundais, Hondas, Kias, and Toyotas. None of them exactly have a cheap model anymore.

i am not saying people arent buying this. my point is, they are serving a niche and not cutting into the sales of cheap vehicles where haggling is done on the number of airbags.

>Move up the price range and you start to see nonsense

that is my point. if you stay in the price range of sub 12L, you will not find those features and as long as these cars sell, these features will not be common in india.
Oh I agree, and yet it seems that an astonishingly small portion of crypto transactions are actually decentralized, or as currency. Until that changes, every conversation I have on the matter seems to end with "no bro, you'll see."
Having read the paper:

They evaluated their model by producing a test set with videos spliced so as to
compose physically "impossible" sequences (that's the claim anyway - who knows
how "impossible" those sequences are). Then they measured the trained network's
prediction error on the spliced videos and they called that "surprise", implying
that it is somehow similar to the "surprise" shown by human babies when they
observe physically impossible sequences (to clarify, in the psych literature
this "surprise" is measured as a function of the time spent looking at a scene).
Then they measured "accuracy" as the difference in "surprise" between possible
and impossible videos.

There are two problems with this. First, it's the old switcheroo: it just
relabels prediction error as "surprise". Yeah, "surprise" is interpreted, in a
Bayesian setting, as the difference between an expected event and an actually
occuring event but here we're not in Bayesian world. There's just a classifier
failing to classify correctly. By the same token, any classifier's
classification error ever can be interpreted as "surprise", even though it's
just failure to acquire the target concept.

Second, this measure of "surprise" has nothing to do with the measure of
surprise used in experiments with baby humans, where "surprise" is a function of
the time the baby spends looking at a scene. For a baby human it makes sense to
intrepret longer time looking as a double-take: "what the hell just happened"?
But for a neural net? How can a neural net do a double-take? First of all the
time spent "looking" at any image is entirely controlled by the experimenters.
This is just an apples-to-oranges comparison and the result is a lemon.

Third, their "flat" networks trained without hand-crafted object segmentation
show lower "surprise" but since that's just the sum of squared errors, it only
means that the flat networks have learned classifiers that perform better on the
test set than the proposed approach. When "accuracy" is compared, the flat
networks score lower but that should be expected: if "accuracy" is measured as
the difference in classification error, the model that is better at classifying
across all tasks should have lower "accuracy". But that's because it has higher
classification accuracy.

(yeah, that's an off-by-one error, well spotted).

Then, to test whether their system generalises to unseen objects and events,
they tested it on a separate dataset, called ADEPT, and found that it scores
very well. The only problems is that they measured "accuracy" again as the
difference in mean squared errors between "possible" and "impossible" scenes.
All this is measuring is the _lack_ of generalisation from training to test
images.

I'm sorry to be so negative, again, but all I see here is playing with language
and rechristening error as "surprise" and "accuracy". There is nothing that
shows acquisition of "intuitive physics" like the paper keeps claiming.
Uber seems to have weaponized senior public officials and MPs in many European countries.

This a scandal of huge proportions.
Same - the row format itself starts with a bitmask listing all null columns. You don’t need to read the column data itself to determine if a column is null.

https://www.postgresql.org/docs/current/storage-page-layout....
That just means you're paying the same money up front rather than as a subscription. Why's that better?
Ask HN: Why isn't GWT or Vaadin more popular among Java developers?
When I think about TypeScript and Angular I break out in a cold sweat. When I remember creating UI's in GWT and it just worked, in Java, it brings back fond memories. So I'm relegated to the backend. Any other Java devs out there who'd like to to more in the front end but in Java, the language we know and love?
The leak came from a disillusioned lobbiest, not the engineers.
People do not have extra upload bandwidth to stream video. Plus the whole CGNAT issue of getting to a home device.
Intentional or not, one outcome on sites that are relentlessly A/B tested is that the resulting UI design lets users know that content they want is there, they just need to click and scroll a bit more to find it.

Having left FB years ago, I now watch people "navigate" their site/apps with disbelief.
Working with spans is fraught with peril, though. It invites off-by-one errors.

If there's one person in the queue to the checkout, then span-wise, that person is the start of the queue and the end of the queue. But if the start and end are the same, what is the length of the queue?

(If you still insist it's one, you'll not be able to answer the question where the start and end of an empty queue is. There is no first or last person!)
Geez the obsession with Elon. There's about a hundred Elon + Doge themed shitcoins. ElonShibe, Elon Mars, etc.
That's a very weak blanket statement, there are totally reasonable A/B tests you can run that don't deteriorate a user's experience, and the results can guide you to a better customer experience overall.
it’s easy to make some people’s lives better when your degrading the lives of others. the trick is to make it better for everyone.
But your seats have heating elements anyway, do you think bmw is taking loss if you dont buy subscription?
> Assuming you know exactly what will make the customer experience best without actually testing it can also lead to a worse experience.

For that you usually hire a market research company or do what they will do: take an interviewer, two cameras (one front-face, one top-hands) and hire an as-diverse-as-possible pool of test candidates that you then put through whatever workflow optimization you want to do. Then afterwards, you interview them - side benefit, you can get really interesting general side knowledge that you'd never gain from a dumbass A/B scheme: is your font style/color scheme legible, can the site be used by colorblind people, are there stock photo choices that give off stereotypical vibes...

It's real fun and a worthwhile experience for everyone involved.
> I guess my point is that it's unreasonable to expect a manufacturer to ship a computer with a bunch of certificates. I'd even say that it wouldn't be that secure.

How exactly do you think a root trust should be established? Should it just boot up and start grabbing whatever certificates it thinks might be authentic over the network?
> Most are unelected beaurocrats

Most what? Do you mean "most MEPs"? Or "most Europeans"? Or "most civil servants"?

It's not clear what you're specifically referring to that makes the EU different from any other democracy.
I’ve just started out with Flame and Flutter. As a newcomer to game development (but experienced in other genres of coding) I’ve found it great.
If competition means workers exploitation, then I don't have a problem with those politics. A happy driver will be less rude to passengers too.
> Maintenance on Tesla is simple: air filters, brakes, tires, air conditioning.

Maintenance on a new ICE car is exactly the same, plus an oil change every couple of years.
This required quite some clicking to find out WTF fastify is [0]. Luckily I knew about Vite [1] already.

[0]: https://www.fastify.io/

[1]: https://vitejs.dev/
The premises of your position contradict themselves.

The premises that several colors can be different despite humans believing the colors are the same color requires that color is an independent property of external objects.

The premise that voting is a way of studying color requires that color is a property of human perception.

The discipline of color science operates on the second premise because the discipline of color science is scientific.

The first premise has been the road to philosophical skepticism in Western philosophy for more than two millennia.

Although it appears in physics courses everywhere, there is nothing special about the visible spectrum except that it happens to be what we see...which is to say that partitioning the universe into infrared, visible, and ultraviolet is not based on properties independent of humans in the way that mass, force, and frequency are.

Because color only exists in the context of the human visual system from a scientific perspective. Or to put it another way, color is derived from human physiology. And that's why it is scientific to vote on it.

Of course for the same reasons we talk about the sun rising and setting, the tides flowing in and out, and the ancients distinguished between Hesperus and Phospherus, ordinary non-scientific language treats color as a property of things similar to mass because tedious pedants aren't much fun at parties.

In ordinary language it is also the case that choosing a color involves explicit rejection of closely related colors that are a little too warm, I-think-it-will-be-too-dark, or something-a-bit-more-red.

Choosing a color involves high discernment. When you find the right shade of blue, you have condemned all other shades as wrong.

Fortunately, nobody cares.
Extreme case but proves the point. I stand corrected.
I honestly find the lack of cross-department chitchat an actual problem.

When we were in the office I would often strike up a conversation with people from another part of the company, people I had no reason to talk to. I would get an honest idea of their struggles and needs not filtered through corporate meeting grandstanding. It built connections and empathy.

I have barely spoken to anyone outside my department since work from home began, and I think that’s a problem. Sure large cross department slack channels exist, but the public performative nature of it just isn’t the same.
So one has a right to privacy and the other doesn't? Are companies not allowed to secure their data?
> They aren't quite "employees" given that they can reject my trip request without needing to provide any excuse, which by the way happens frustratingly often esp. during rush hours.

Doing so enough times will lead to Uber penalizing the driver. Does that sound like a freelancer to you?

Obviously, the definition will change depending on the country. Referring to a previous court case UK (Employment Tribunal: Uber BV v. Aslam), this is why they think Uber drivers are employees, not freelancers:

> Uber set the fare which meant that they dictated how much drivers could earn

> Uber set the contract terms and drivers had no say in them

> Request for rides is constrained by Uber who can penalise drivers if they reject too many rides

> Uber monitors a driver's service through the star rating and has the capacity to terminate the relationship if after repeated warnings this does not improve

With those things in mind, it's hard to not feel like Uber drivers are in fact employees of Uber, not freelancers that can freely engage in business while only being "supported" by Uber or using Ubers app.
TFA isn't describing a Ponzi scheme because (as far as we know) the person doing the machinations doesn't run the scheme (underlying "coin") and doesn't use new investors' money to pay off existing ones. It's just a pump and dump (buy while something is cheap, hype it up to make the price go up, then sell at the top).