skysight-inc/HackerNews huggingface dataset:
Ask HN: What's with the black band on top of the page? ANSWERED
There seems to be an extra td on top of the page, containing a fairly "empty" gif (https://news.ycombinator.com/s.gif). After a quick look with a random hex viewer, I can't see anything interesting in that gif. This doesn't seem to accomplish anything on the page, so, what gives?

Here is a screenshot: https://imgur.com/a/dY6czCs
Ok, that's actually a lot more interesting than I was giving them credit for. I assumed they were just overwhelming the LPF or exploiting some side lobe to create aliasing in the audible range, but that's discussed in section 2.

All I can contribute is that nonlinearity in audio systems is also known as distortion, and it's impossible to eliminate entirely because every system, whether electrical mechanical or even digital, goes nonlinear when it reaches its amplitude limits. Some more gracefully than others.

Seems like it would be difficult to tease out the relative contribution of the MEMS element and the preamplifier because the preamps are typically implemented on ASICs in the same package. So that might be speculation on the authors' part.
What is the drawback of just using a string as storage? Together with something like bcmath for calculations.

Strings does not overflow & are easy to transfer.
LED bulbs that aren't current controlled are rare now. You're right - just sticking a bunch of raw led's in parallel over a "12v" source is a recipe for disaster.
It's not the core email UX that's the problem; it's SMTP email that's the problem.

You're article seems to argue the opposite to me. For example, the following quotes are all related to the email UX:

1. In any group of people exchanging encrypted emails, someone will eventually manage to reply in plaintext, usually with a quoted copy of the entire chain of email attached.

2. Every archived message will eventually leak.

My understanding is that it would be possible to create an alternative app that is compatible with the Signal protocol that would provide a different UX. This alternative UX could, for example, offer the ability to save all messages onto google docs, eliminating the benefits of secure messaging.
OK thanks for checking it out I feel a lot better about it then.
Thanks for sharing that, friend. Appreciated.
This post sounds like a conspiracy theory.

The reason traditional media and other authoritative sources are so reluctant to post speculation is to avoid spreading unwarranted panic. Right now, Influenza is a far bigger risk to the average person, and less than half of Americans bother to get vaccinated.
You're misinforming people. Nobody has to hand Google anything. The NSA has direct access to their systems and can take in as much as they want.

This is not a conspiracy theory - it is public knowledge thanks to the Edward Snowden leaks.
Thanks! The Computer History Museum seems like a reliable source on this.

I've added their tweet as a citation on the Wikipedia page.
> But more than half the cattle in the world live in Brazil and India.

Not true.

https://beef2live.com/story-world-beef-production-ranking-co...

> So one could easily say that recently burned Amazon rainforest is "marginal crop land", and that would make this statement technically true while still being no consolation at all.

The point is that cattle can be raised in marginal crop land. Palm trees cannot. Yes, we should stop cutting down rainforest for cattle and palm oil. The difference is that we can raise cattle in the tons of marginal crop land we have around the world.

> The next biggest chunk of the earth's cattle live in China

Not true.

https://beef2live.com/story-world-beef-production-ranking-co...

> Grazing is supposedly a major factor in the expansion of the Gobi desert.

Supposedly? Care to provide a source for that?

> Perhaps all the biggest CAFOs are located in marginal crop land, but the grain they're feeding to the cattle is all grown on prime crop land.

Care to provide source for that?

If you really are concerned about the rain forests, then you should be against palm oil and raising cattle in the amazon rainforest. But it seems like you are just against raising cattle.
Why are payments costing more? Isn't technology lowering costs more and more for these companies? Is this just execs needing another summer home so they raise the prices to whatever they like?
Those are strong assumptions :-)
And the snark has a purpose, it’s what draws the attention of readers and people who follow suit. Dry legalese is seldom read.
There is nothing about the core UX of email that requires plaintext as an option; you can straightforwardly imagine, and probably even readily implement, a secure messenger with the same UX as Outlook in which it's not possible to plaintext-reply a message, or send plaintext at all.

Archival is a problem. But you can also imagine something with the UX of Outlook that implements the same advisory-level disappearing messenger feature that modern secure messengers have; in fact, I wouldn't be surprised if you told me Outlook already has that feature (but that it only works for Outlook users).

The problem is the legacy of SMTP. It's not what the UI looks like.
Seems reasonable to me. The payment was successful, which is the service Stripe provides. Is this out of step with the industry at large?
I figure it has something to do with the top two stories atm:

https://news.ycombinator.com/item?id=22361282
https://news.ycombinator.com/item?id=22370667
Pioneer and Entrepreneur First are probably the most compelling attempts of rethinking the accelerator.

Haven't contributed to the Pioneer community too much (also backed), but it's clear that things are picking up internally with frequent talks, office hours and "remote dinners" - the first of which is tomorrow.

Really excited to see what other companies spin out of Pioneer
Not "should" but required by the EU. Any company anywhere in the world is subject to it and may face fines if any violations are brought to light.

Now the question is if any random corner store in Indonesia is going to respect the EU decision.....
Your claim was it related to MTU, which you're now moving away from:

> Which raises another point in relation to the 1500 MTU - all of the CRC checks in various protocols were designed around that number.

Now we have a new claim:

> The risk is that multiple bits in the same packet are flipped, which the CRC can’t detect

Yes, that's always the risk. It's not can't detect-- it almost certainly detects it. It's just that it's not guaranteed to detect it.

It has nothing to do with MTU-- Even a 1500 MTU is much larger than the 4 octet error burst a CRC-32 is guaranteed to detect. On the other hand, the errored packet only has a 1 in 4 billion chance of getting through.

> 100G Ethernet transmits a scary amount of bits so something that would have been rare in 10Base-T might happen every few minutes.

The question is, what's the errored frame rate. 100G ethernet links have error rates (in CRC errored packets per second) compared to the 10baseT networks I administered. I used to see a few errors per day. Now I see a dozen errors on a circuit that's been up for a year (and maybe some of those were when I was plugging it in). 1 in 4 billion of those you're going to let through incorrectly.

Keep in mind faster ethernet has set tougher bit error rate requirements and we have an undetected packet error time of something like the age of the universe if links are delivering the BER in the standard.

(Of course, there's plenty of chance for even those frames that get through cause no actual problem-- even though the TCP checksum is weak, it's still going to catch a big fraction of the remaining frames).

The bigger issue is that if there's any bad memory, etc, ... there's no L2 CRC protecting it most of the time. And a frame that is garbled by some kind of DMA, bus, RAM, problem while not protected by the L2 CRC has a decent risk of getting past the weak TCP checksum.
Love, Trash Doves
If I ran a state-level intelligence service I too would try to get everyone in my country to use PGP encrypted email instead of Signal.
http://www.gedlee.com/Books/AudioTransducers.aspx
It's likely he's bumped in the polls and the media is now giving him more attention.
I feel like it would be nice to have a "rising" category - most of these are from heavy hitters/already famous.

However, very cool - any thoughts for other categories (SciFi, etc.)?
In college 20 years ago some student hit "reply all" on some random email to complain about something and thus started a 2 day long chain of emails of people arguing with the person and others yelling at everyone for hitting "reply all" And so thought it was a good idea to reply with a link that said something like "go here to make the emails stop" which was just my picture making a stupid face and some javascript I made that would open 2 more identical windows, then those 2 would execute until something crashed. It was amazing I didn't get in trouble for it and some guy at the 7-11 recognized me. Highlight of my life.
It's a mourning band.
There's a difference between "standardizing an implementation so everyone can use it" and "just use this standard implementation".
Well the vaccine is only about 50% effective so it's sort of a tossup if it's worth getting.
All governments are true authoritarian.
If your adversary is NSA, and your defense is Protonmail, you are literally LARPing. You don't believe Protonmail protects you from NSA; the reason you're using it is because you know what you're sending and receiving isn't interesting enough to target. If you had real secrets, you would not send them through a Protonmail-encrypted email; you would make other arrangements.
https://news.ycombinator.com/item?id=22369857
Not insisting, and could be seen as a bad practice, but I think I have experience worth sharing.

Unless you operate 2+degree currency polynomials, it may be okay to store money in minimal integer units at an application level too. It may be adjusted in only ui formatters. One should be careful with constants in code and external apis, but nothing you can’t get used to or catch with a test. We store timeouts in milliseconds, weights in grams, and so on anyway - not a new thing.

As an example, the primary database I maintain for our company is able to hold decimal .00 natively, but we use its fields as if they were multiplied by 1000, i.e. 12,345.00 is stored and operated as 12.35 (and goes as int64 1235 to ODS) (rounding 5.00 off is fine for this particular accounting model). Nobody made a three-digit mistake ever in a whole decade, because square/cubic money is not a thing naturally, and ratios & exchange rates work as usual. It is like storing cents, but the other way round.

Storing in-app amounts in floats has a downside of accumulating an error in for-looped calculations and the need for periodic rounding (although it should run on a really big dataset to collect that enough). If a language has a money type and it can be programmed accordingly, then a problem disappears. If not, then it persists either way in different forms.
So store the value as milli-cents? (haha)
How is email cryptographically inferior? Only thing I can think of is if you want perfect forward secrecy, you can segment and deliver parts of the email with different encryption keys (except you could if you have it and send each blob in a thread).

That just depends what encryption protocol you use.

You could say that the user experience around encryption in email is inferior. Is that what you mean?
Grumman knew about groundwater contamination for decades
What portion of the transaction cost goes to stripe and what portion goes to Visa/Mastercard or the card-holder's bank? Which part is the cost that is increasing?
Imagine trying to convince management to use a tool named Pipedream, sheesh, couldn’t think of a worse name.
"How do you propose that people learn these skills- or learn if they are capable of achieving these skills?"

Is that too difficult to answer for you?
Oh, that makes sense. @danq, mind adding an alt attribute to the image?
Hmm, so when refunds are processed, Stripe still always has to pay the interchange fees?
Pioneer opens the opportunity for the people from various countries. We are Verihubs (veripass.verihubs.com) are backed by Pioneer and we are from Indonesia.
Great News! We have launched our Travel App
Hi everyone!
We’ve been working on our Travel App for several months and would love your feedback! We built an app-based gateway to connect with locals to find the best places around the world, based on your actual interests. Our task is to connect travelers with locals in order for them to find, share and save their most valuable spots!

App Store: https://apps.apple.com/de/app/local-secrets/id1451548861

Let us know what you think!
> outbreaks on this level

An isolated outbreak on a cruise ship? That should be the bare minimum a country should handle. Note that Japan doesn't have any organization like the CDC- they aren't prepared for anything.
They are doing a Paypal. How long have they been doing this?

Louis Rossmann won't be happy - https://www.youtube.com/watch?v=c1WPDVjXDj0
Rewards cards that offer all sorts of perks. Cash back, travel bonuses, $500-$1k signup bonuses, etc.
I'm wondering if it has something to do with the increasing prevalence of rewards, which is driven by competition between issuers?

I mean, I get somewhere between 2% and 5% back on virtually everything I buy. On top of signup bonuses.

Whereas when I think back to 10 or 15 years ago, it seems like I usually got 1% back, and I still had cards that didn't offer any rewards back at all -- which is unthinkable to me today.

Just my anecdote, and I don't know if it's the main driver, but it certianly seems like rewards have become a much bigger thing.
I'm getting ~$130 million with these assumptions:

* each font load is 170 KB (I downloaded Roboto and that's the file size of one weight)

* 36.3 trillion font loads (per the source)

* 36.3 trillion * 170 KB/font load = ~6171 PB [0]

Plug 6171 PB into the GCP calculator [0] with all egress via GCP Cloud CDN to N. America and the bill comes out to just shy of $130 million.

OP is off by an order of magnitude by my napkin math, but it's closer than I was expecting.

[0]: https://www.google.com/search?q=36.3+trillion+KB+*+170+in+PB...

[1]: https://cloud.google.com/products/calculator#id=f75c7bdd-4c4...
I know some people with a certain generation of Macbook or macOS version have had bad luck running docker which causes their fan to go nuts and resources get drained so they prefer to avoid docker if possible.
Actually - it's mostly because of cost / benefit shifting.

A card can attract USERS by increasing the rewards it offers -> and charging MERCHANTS for the reward.

So visa infinite cards might charge a much higher swipe fee to a merchant, and then make available cash back + first party car insurance + lots of bennies to the holders of these "elite" cards.

They justify this to merchants by claiming that these "elite" users spend big bucks.

The reality - if users of cards were charged the actual swipe fee their card incurred -> they would push for SUPER low fees or switch to debit cards.

Many lucrative business depend on the person picking the service not being the one paying for it or the kickback going to someone other than one paying.
I actually use Roam quite regularly! However, I have found Roam is better for solidifying and consolidating my handwritten notes at a later point.

For me it goes:
1 - handwritten brain dump
2 - Re-read my notes, analyze them and prep them for consolidation. This means writing down questions I have, updating notes I took that I might have better understanding of now, etc...
3 - Consolidate and import them into Roam with links and supplementary materials (images, code snippets, etc...)
I have zero interest in harassing people. Unconventional replies cause escalation; Facebook’s current staff on this is on a higher pay scale than most.
I’ve made my mails impossible to ignore to the point of there being no plausible deniability; the entire GDPR department is aware by now. Given what you and others wrote above, it should probably be clear what real actions are going on behind the smoke and mirrors on my site.
Grumman knew it was polluting groundwater, kept critical information secret
That's a great article, thanks for sharing!
I have a grandfathered account from 2016, and I'm still getting the fee refunds.
Ah, so they’re not referring to pgp per se, but the fact that email clients will just execute any decrypted content embedded in the email.
Ironically, two of the most recent failures I've had (and I've only had a half dozen over the last few years) were heavy Philips bulbs that felt like they were solid metal.
Don't those fees get refunded to Stripe in case of a refund, though?

If so, I'd imagine it's more fair to refund them completely, and instead increase the base fee for payments.
Thanks for sharing that! My wife has a Macan with 80K+ miles on it that we have started to think about a replacement for. I did not know this was in the works.
Hmmm perhaps. But while we keep calling "email" the problem, we limit ourselves to creating "not-email". That's an admittedly large box, but when $politician and $businessperson is still addicted to "email" and asks for it by name, you can argue as much as you want, but not get 100% traction. It is a people problem. A naming problem. A publicity problem.

IMO, better to leave "email" open as a generic term, with the hopes that one of these new messengers (hopefully, Signal) can eventually be standardized and opened to other implementations for adoption inside $bigcorp.

But what do I know?
Isn't it rather the case that non-agile is how you deal with a predefined problem? Agile (incremental and iterative development, as opposed to big design up front, big bang delivery) is how you deal with a problem where the requirements are unknown or changing.
I think it makes sense too, although from a slightly different perspective - that some work was done, and it’s additional work on Stripe (or Stripe’s systems) to refund or reverse a payment. Maybe a small fixed fee makes more sense than a percentage in this case, but either way, refunding a transaction still requires some effort.
Before Trump launched a serious populist political machine. Rob Ford started rolling the ball in 2001.

The start of political office Trump, when the actual machinery was put into motion as an organization, was 2016. They would have been crazy to not be using the Ford brothers as a useful model.
> The accelerator won’t give them cash but will help founders incorporate their startups, give them guidance via a network of experts, and toss some other substantial perks like $100K worth of cloud credits and a roundtrip ticket to San Francisco to inject a bit of face-to-face time into the process.

Question to those of you who are in the program: what Pioneer perk is most valuable to you? Is it access to the Pioneer social network? Or the status signal for being part of a startup accelerator? Surely it's not the help with incorporation or the round-trip ticket to SFO.
This is 100% common -

the cost to network is often both in forward and reverse side, though most card providers zero out benefits to users so I'm convinced have higher than appropriate margins here (not stripe)
Finally, I have found my language.
I've followed it closely but the death toll outside of China is really low. Some reports are that this disease binds to specific receptors in the lungs that are especially prominent in Asian males:

"The result indicates that the ACE2 virus receptor expression is concentrated in a small population of type II alveolar cells (AT2). Surprisingly, we found that this population of ACE2-expressing AT2 also highly expressed many other genes that positively regulating viral reproduction and transmission. A comparison between eight individual samples demonstrated that the Asian male one has an extremely large number of ACE2-expressing cells in the lung."

Which is disturbing all the same, but it means the fatality rate will be lower among non-Asians, unless the disease mutates further, which is very possible.

https://www.biorxiv.org/content/10.1101/2020.01.26.919985v1
I'm all for DC supplies in houses, but it doesn't quite solve the issue here.

Any DC house-wide bus would see voltage drop along the wires, so all connected devices would have to handle an acceptable voltage range.

Since LED's have a very steep IV curve, they really need either current control or a very big resistor to handle that voltage variation.

Very big resistor = too much heat.

So current control. And the only realistic way to achieve that is with a switched mode power supply.

There is one benefit left for DC: The switched mode power supply could have much smaller input and output capacitors, and operate at much higher frequencies, therefore being much smaller.
Could you partially return the fee, such that the transaction is done "at cost" for Stripe?
Recently got hit with this with QuickBooks. They actually charged me a fee to refund that was higher than the original fee charged. They think they deserve 3.5% on top of the initial 2.9% to send money back.
How to download files using curl
Dunno, I always opt out. It's not that hard to do, really.
Retry until it gets the lock and don't hold the lock longer than you need to to write to the db.

Really though if you are trying to read and write to a db concurrently and over the network, it sounds much more clear cut for something like postgres.
AFAIK payments are only really costing more in the US. Europe, Australia, Canada have all regulated or negotiated lower interchange rates in the past years.
How to Write Technical Posts (so people will read them)
For anyone wondering, it seems like it's (usually?) safe to eat/drink from uranium glassware.

http://www.hps.org/documents/consumerproducts.pdf
"When we started selling tickets, I watched the eBay auctions for about a month. I kept detailed information (some on spreadsheets, some in my head) about what seats sold for what, which seats didn’t sell, which cities sold well, which didn’t, etc. By the time we bought tickets, we knew exactly what we were buying. We knew the dates, venue, times, keywords, and even what times we would list on eBay to receive maximum exposure. That was part of our secret sauce. We didn’t flippantly buy tickets, and if we had, we would have failed."

This is smart business. It takes discipline and the ability to learn from your mistakes and continue on, even if you fail 100 times.

"And when you talk at entrepreneurship events about how to be successful, give vague answers like “work hard” and “learn fast” and “hire well,” but never, ever reveal the secret sauce"

Making money is hard. One of the hard parts is finding something that's profitable. If you lay out all of your plans to every other entrepreneur, you will quickly bring competition and you might lose your business in the process. Who wants that?

Those vague answers are the truth. You need to do all of that to succeed.

I've found that most people just want a quick buck. They aren't willing to slave away for a couple of years to build a business. Especially if there are no immediate results.

I built a million dollar lifestyle business with 2 other partners with what you call the 'secret sauce'. It took multiple years of doing exactly what you mentioned.

My business lasted almost 8 years before the market changed and I had to move onto something new.
No matter what anyone says, at least you’re trying to change the “give $200k to college full of cushy administrators” problem that has turned higher education into an absolute disaster. If someone else has a better idea, go ahead and try it.
the British and Polish governments negotiated an opt-out on the Charter

the ECJ later ruled that the opt-opt had no force
just wanted to say, your landing page is awesome
Yeah totally! Initially just whipped this together as a MVP. Been trying to read more non-technical books so I thought about making a site that'd help me choose one to pick. Aim is to have a top weekly/monthly section as well as you said, different categories!