skysight-inc/HackerNews huggingface dataset:
I'm trying to start my own forum for my friends and I to use. I'm having trouble getting that initial momentum though... it's hard to beat plain sms texting.
How is the volume relevant? It has no effect in this scenario. You need to buy a significant amount of the BTC in circulation to reduce the supply. You buy a certain percentage of BTCs it doesn't matter how many billions in volume there is. Buying so much will raise the price which in turn will raise the demand and the bubble starts. Every time the bubble is about to pop you need to buy again to repeat the process. It gets more expensive every time but at the same time the amount of BTC in circulation gets smaller and so the amount the attacker has can move and manipulate the market more. The is no need to go strait up the attacker can temporary crash the market by selling some and bet on falling prices. Then buy back more with the profit. A state with a money printer can not loose and can manipulate however much they want.

>Buying “many millions” worth of bitcoin would not achieve what you’re proposing.

IIRC in 2019 "someone" supposed bough BTCs for about 100 million USD in a short time frame and it raised the price by several %. Its not the 100million that moves the market so much is the demand it creates when people see the price going up. No need to buy the bubble just manipulate the market into creating one.

Also 100 million may sound like a lot of money but for a large state this isn't especially if its printed anyway. And they can recover most by betting on falling prices when they let the bubble burst.
The people who exits before the bust are the only people who actually have to be "paid" (they made profit) by the an attack. While those who stay in or join will lose everything in the end and cover most of the cost of the attack. Remember after the attack BTC would be almost worthless and the attacker would have sold it all while betting on lower prices. All the people who get liquidated indirectly payed for the attack. Everyone who holds BTC an bought it higher than the end price indirectly helped create the bubble.

You'd definitely need lots of money to do this but that doesn't mean it costs a lot in the end. Most of it is a zero sum game.
Show HN: Mibo – Video chat that feels like real life
Hey! Mibo founder here. We’re a team of 3 (currently expanding) and started the prototype back in April to keep in touch and to really feel like you’re together during these covid times. As everyone might have experienced the past year, normal hangouts / meets / zooms are simply too awkward and soulless to use informally above 4-5 people.

It feels surprisingly real, it’s a combination of video chat and walking around in 3D. Your webcam is your head, and people sound louder the closer they are to you.

It's gotten quite popular by now. A lot of companies use it for office drinks and social gatherings, and we're seeing that from there they start using it for more work-ish things as well as team checkins or standups.

We’re using Jitsi as our video conferencing infra running on google cloud. Coupled with a Unity WebGL client on the frontend side of things, hosted on Firebase with photon used underneath for our networking layer.

To make it extra easy here’s a link to an island for you HN folks to discuss (https://getmibo.com/join/8PHX-4JYX-FEQ2-5ECT) — we’ll keep it up for a day or so to prevent it from devolving into a Chatroulette. Or you can of course sign up for your own (free!) account.

Curious to hear any feedback and happy to answer any questions!
This was just an example to show what it does, I normally wouldn't have \h in a string. I use this to store lists of regular expressions in aws dynamodb list type and to convert them back to raw strings when used.
Yes when they hijack your earphones the sudden volume increase hurts.

I once flew through Saudia Airlines and fell asleep with my earphones on (I was listening to some music from their system). Getting suddenly woken up by the start of the prayer "Allahu Akbar" with a deep loud voice straight in my ears was an experience I'll never forget
Hey HN! Developer of Twemex here.

Twitter is one of my favorite places for developing ideas. Writing tweet threads [1] and having conversations with people on Twitter has helped me develop many of my opinions about computing.

The problem is that Twitter was designed for quick status updates, not developing ideas, so the product has some gaps. I started out building this browser extension to fix my own frustrations, and eventually enough people asked me about it that I decided to share it as a product.

One tip/reflection on launch strategy: I initially shared this on Twitter and had people DM me to get access. This was phenomenally successful for getting lots of early feedback—once there's a casual private messaging channel established, a user is way more likely to send feedback. I got meaningful feedback from the majority of people who tried the app. I finally made a website this week because the DM distribution strategy couldn't scale anymore.

Happy to answer questions here about the product, development, or distribution.

[1] more about threads: https://www.geoffreylitt.com/2020/09/21/twitter-and-media-fo...
It's not very convincing:

"Trump's endorsement of the Senate's First Step Act stands in stark contrast to some of the rhetoric he has employed while in office"

"Trump, too, at times has argued that drug dealers are not punished enough"

"He has even talked about wanting to utilize the death penalty against drug traffickers" (yikes!!!)

And then there is the executive order that Trump made targetting BLM protesters, where damaging a federal building can lead to up to 10 years in prison, and he spraffed at length about coming down hard on them. Funnily enough, he wasn't saying anything like this about the Capitol Hill rioters...

I think one of Trump's biggest flaws (if we put aside megalomania), is that he wants to be loved by everyone - I always got the impression he'd say anything to anyone if he thought it would get them on side, regardless of whether he actually believed it.
I live in a city with rent control. What you're describing simply doesn't happen.

You of course still have to address supply issues. But addressing supply alone is not sufficient to bring rent under control. You need both.
Stop being ashamed of your legacy apps
It is there, since such a large player as a government throwing around unlimited money will inevitably distort and corrupt the market.

Look at what is going on in the stock market right now since the fed started buying assets in spring.
Covid-19 Herd immunity may not be achievable even with high vaccine uptake
The+Power+of+Life+&+Death+Is+in+The+Tongue+|+Gospel+Of+GOD
> and I think boarding order might be better -- so I never have to climb over someone to get to my seat.

This used to occur, and I first saw it on Lufthansa in the 1990s. Window seats in the back of the plane boarded first, aisle seats in the front boarded last. United adopted it (they were both part of the Star Alliance), but it didn't last; I'm guessing it was incompatible with the pre-boarding of high-mileage (= high revenue back then) fliers, esp those who wanted overhead space.
Oh, a legal memo like that, for something that is going to be high-visibility and you want to get right and you want to win, definitely took more than a few person hours. I bet several people were working on it for a few days, minimum.

It's also something that requires lawyers/law staff, not just random people, for maximum effect.

But yes, this is definitely a positive thing! I'm not sure anyone but the EFF would have done it succesfully, I am grateful to the EFF... and, yes, to github for their response, which not every company would have had.
Then you are working for nicer people than I was. My clients, when I was in the private sector, really did not appreciate me missing meetings because the airline was late. Nor were many of my delays measured in hours. Flying SF-Vancouver or Vancouver-NY/DC, if an afternoon/evening flight was canceled we wouldn't fly until the next day.
>I can’t predict all of the issues that our partners will throw at me, and I know that to fix them I have to understand multiple systems, work with great colleagues, and constantly push myself to learn more.

So what is his domain exactly? He went from shipping other platforms/devices to his first Android device. So presumably, he is learning multiple operating systems? Is that practical to have working knowledge of multiple OS internals?

Wouldn't they be better served by people specializing in one OS/platform? That would lead to quicker issue resolutions as someone isn't spending time learning a new OS.

(These aren't criticisms of anyone's ability, but rather why the scope of responsibility is so large and requires so much mental effort)
I want to give something that is easy to move around and doesn't have lots of cables.
And so the bartender ends up throwing the priest out along with the packets!
A great niche to target would be assistance for people who have a muscle group they don't use because of long-time postural issues or simply never having learned to use it.

For an issue like this, it doesn't work to simply do an exercise that supposedly works the muscle. Even if the muscle is the limiting link in the lift, if your body isn't using it, it won't get stronger. For example, my mid-upper-back was lax because of typical nerd posture. Even though it limited my squat, years of squatting didn't force those muscles to do anything. I just had a really weak squat that relied on other muscles compensating. Then one day I ran across a suggestion to do bat wings and hold at the top for 20-30 seconds, and I became close friends with some muscles in my back that I barely knew existed.

A web site showing you how to discover each muscle or muscle group in your body (bat wings for deep mid-back, glute bridge for glutes, etc.) would be AMAZING, and I bet people would get referred there all the time from places like r/Fitness where people go for advice.
I know it with "The mathematician's bin was full, so he lit it on fire, reducing the problem to one with a known solution".
In Dutch, appelsien is archaic, sinaasappel is the modern name. Though the word for juice, sinaasappelsap, is increasingly being replaced with the French jus d'orange.

Despite Dutch not using a variation of "orange" for the fruit, we do use "oranje" for the colour, which, due to the name of our royal house, has also become the national colour.
IIRC, "Principles of Underwater Sound" by Robert Urick [0] is considered pretty good.

A textbook that's helpful for actually implementing ocean acoustics models is "Computational Ocean Acoustics" by Jensen et al [1].

[0] https://www.amazon.com/Principles-Underwater-Sound-Robert-Ur...

[1] https://www.amazon.com/Computational-Acoustics-Modern-Signal...
Using mobile phone GPS data to explore Covid mobility patterns in Philly
Perhaps the ones falling prey to fake news and disinformation are not doubting enough or their doubting is one-sided. What they lack is the doubt in their own thinking and believing. I believe we should question our own convictions as often as possible and try to understand where they are coming from. That is, try to be aware of how our upbringing, our current personal situation, the experiences we've had in life (and the ones we didn't have) might influence our thinking.
The moral blame rests fully on the clinic, but the responsibility to fix the system rests fully on the government (in this case). It's really no different than a production line with a quality problem. You can yell and scream about the morality of the workers all you want, but you can't expect them to improve if you don't fix the system and incentives that cause the problems.
This is great! when is the beta going live?
RFC 2616 defined header fields as OCTETs, and regarding this change RFC 7230 states:

> Non-US-ASCII content in header fields and the reason phrase has been obsoleted and made opaque (the TEXT rule was removed).

RFC 2616:

field-value = ( field-content | LWS )

field-content = <the OCTETs making up the field-valu and consisting of either TEXT or combinations of token, separators, and quoted-string>

Hence to me fields must be treated as opaque data for backward compatibility and robustness. If anything, existing applications that are compliant with RFC 2616 already do that, right? ;)
Like so many things in physics, a differential equation with constraints and initial conditions to satisfy.
I am not versed in that part of history. Probably you are right, it might not have been that crazy idea.

But I have read a lot of other history, especially WW2 and Cold War, and it is kinda normal that military throws a lot of crazy ideas. In the end even if a very small portion of those ideas bring fruit it typically tends to give the edge that you need in conflict.

So I try to not criticize too much because people who prepared this were probably asked to do exactly that -- go wild with their ideas with low probability anything they produce is going to bring fruit.

At the time this submarine aircraft carrier has been prepared:

- Cold War was at its high

- US just started using atomic power for everything they did and it seemed nuclear reactors and atomic power are going to solve any problem from going very long time under sea to having planes reach orbit and other planets

- US had nuclear bombs but had trouble maintaining ability to reach USSR territory with them. Having ability for a submarine surface close to USSR territory and launch completely unexpected attack would be huge advantage and deterrent

- US did not have working ICBMs and only perception that USSR is leading in development of these, so there must have been huge pressure to get ANYTHING to maintain deterrent.

Now, given that kind of environment this idea doesn't sound so stupid anymore. At least not more stupid that warships made of ice and wood chips.
If I were to guess, I think the temperature differential within the water layers make for sound to refract and diffuse quickly and not really travel in a straight line for too long.
I think people are trying to correct the existing picture (ie the current popular history is good, too clean) by adding the bad for a truthful version with positives and negatives. It's one of those "we're arguing, but actually we're both right" situations.
Last time a new mammal was discovered here it was international news.

If an alien civilisation has trillions of trillions individuals, there must be quite a bit of them interested in any possible niche. This assumes that an interstellar species would be naturally curious.
Fantastic website! My GF is using it right now at the gym. Just wanted to report a bug; when you click on “more” in the female abdominals, you get a server 500 response. Anyways, really good job and very user friendly.
Physicist proposes human-populated mega-satellite orbiting Ceres
Let’s say though it took several generations to travel to the ants, would we bother?
I suspect it’s that they don’t care. It’s not an issue for them because they don’t use the missing native functionality anyway.

Also, if you frequently use cross platform software on multiple platforms, it’s possible consistency within the app is more important than consistently with the OS.
Ask HN: Could CRISPR allow us to grow bananas in a cold climate?
Stealing property is not a victimless crime.
There are sequences in ISO-8859-1 that will cause UTF8 application to balk if they are read without conversion - sometimes in a part that is well away from the input itself.

A common example "órny", part of a number of Polish place and personal names. ISO 8859-1 (and -2, and others) form would be F3 72 6E 79. UTF-8 treats F3 as a start of a 4 byte sequence where each subsequent character is in 80 - BF range (as specified in RFC 3629):

UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) /
%xF4 %x80-8F 2( UTF8-tail )
UTF8-tail = %x80-BF

This nicely causes an exception in both Java and Python, for instance, if they were to do what Go does here - and there is nothing anyone from adding an X- header to the request or response to try just that.
Hello, Storj! (Filebase goes multi-network)
Selection. People who are in their cheesy death throes don't have a free hand to write on HN.
With the speed of light being as slow as it is, that Alien must be very long lived to consider such a trip. The PhD should start observing the dinosaurs and for lack of enough data continue on to humans.
I think it's still a lot easier to treat each going-back-to-the-past as a fork().
I assume that any culture that is capable of developing interstellar flight will have a high degree of curiosity. We humans study even the most "mundane" life forms on our planet and try to study the rest of the universe outside of our planet. That is why I think extraterrestrials would want to make contact with us.

> We may be a phenomenon as uninteresting to them as ants are to us; after all, when we’re walking down the sidewalk we rarely if ever examine every ant along our path.

However, there are people who do study ants.

I think Roadside Picnic is a good novel but not indicative of how extraterrestrials who are capable of visiting Earth would actually behave.
I think a more approachable resource on (a superficial but fundamental level) is Smarter Every Day's SONAR episode. He discusses and illustrates the complexities involved in sound, how it doesn't even travel in a predetermined path, and the variables involved in its distance/trajectory: https://www.youtube.com/watch?v=AqqaYs7LjlM
The "distributed camera" is a central tenet of the intersection of computer vision and the global distribution of cellphones. It's pretty cool to see a distributed radio astronomy telescope array. With the additional benefit that it constitutes a baseline of ground truth in the form of cosmic rays. Not sure its robust enough for all environments and devices. But employing Nature itself is an exciting solution!
No, I think I disagree. If the raw data told the story then there wouldn’t be a need for a chart for sighted users. The chart helps a sighted user get a feeling for the data, and the alt text needs to do the same.
Sure, that'd be one solution. I wonder how many users would end up with auto-updates off, and how many of them would actually understand the risk.

Many users are going to change configuration because some tutorial on the internet somewhere tells them to do it, without totally understanding what they are doing, and are unlikely to revisit this configuration again ever. (Heck, I have done that with some configurations I don't totally understand, and don't even remember what I did and will never revisit to change back).

But it might be a fine way to do it.

But in analysis there is a shift from "can we blame someone else [users who ignored our advice] if the ecosystem ends up very insecure", to "how do we actually keep the ecosystem secure, not just have someone to blame when it isn't?" Doing the latter while also providing for user flexibility and autonomy can be a challenge for sure.
Seems like you have to unwrap the message from the upstream scheme and re-wrap it in Matrix’s scheme at some point, right?

I’d appreciate a blog post explaining the architectural choices here.
1Mbps for "high quality", 3Mbps for 1080p.

By what reasoning is 3Mbps not good enough for average member of the economy?
> Unless you’re into fraud, “accounting” and “accounts payable” are examples of cost centers. You don’t hire a bunch of innovative people to boost it because it’s not going to ever increase your revenue.

You're so, so spectacularly wrong on this, I am honestly gasping for air.

Accountants are the only people who know if your company is alive or a walking dead. How do you expect to run a company if you don't know reliably and with precision how much money it actually has/makes/spends? Money is the lifeblood of a company! Don't you want to be constantly improving the way you make, spend, and report it to investors and the public?

The biggest companies in the world typically end up with CEOs that come either from sales or from accounting. That is not an accident. Business is about money, and you want smart and innovative people to look after it. Conservative CFOs can be the death knell of a company, among other things.
What I've seen some small websites do is practically sell / rent backlinks. I can imagine this having the downside of doing business with people on the internet, not getting paid.

A slightly more ethical / more profitable / safer option would be to make websites in related niches (tech reviews, for example) which are easier to monetize, and then link to those. The costs of running the free websites would be paid by the profitable website.

Apple does a somewhat similar thing. iOS and macOS are free, but they are covered by the cost of the device. Or an open source library (free) paid by a book (charging for the documentation).
From the Zoom system requirements:

1:1 call

* 600kbps (up/down) for high-quality video

* 1.2Mbps (up/down) for 720p HD video

* Receiving 1080p HD video requires 1.8Mbps (up/down)

* Sending 1080p HD video requires 1.8Mbps (up/down)

Group call

* 800kbps/1.0 Mbps (up/down) for high-quality video

* For gallery view and/or 720p HD video: 1.5Mbps/1.5Mbps (up/down)

* Receiving 1080p HD video requires 2.5Mbps (up/down)

* Sending 1080p HD video requires 3.0Mbps (up/down)

https://support.zoom.us/hc/en-us/articles/201362023-System-r...
Straight from the source: https://www.england.nhs.uk/statistics/statistical-work-areas...
Worse, you're on an international flight to or from a place that has multiple national languages and they have to do all the announcements 3x.
You're all wrong and this is very frustrating.
How Many Vaccine Shots Go to Waste? Several States Aren’t Counting
We have devoted large amounts of time and resources to studying the differences between seemingly similar ant colonies, and we have lived alongside ants for our entire existence as a species.

Imagine now that we had never seen an ant, had a totally different biological origin to the ants, and had no idea why they did what they do because we had no cultural conception of them as an entity.

We’d only be more interested in ants.
To be honest, my second website needed to have info and a contact us button, so because I didn't have enough web dev experience I thought the best workaround to countless hours of learning CSS would be to stich together a bunch of SVGs. I was feeling like a genius because I could also make it so that the website is indexable by google because the text in the SVG is treated like text and It was mobile friendly because I could do a separate desktop and mobile version through a wordpress site builder. I believe in your idea because I have tried it and I think it could be used to develop 90% of SASS and startup web pages because you just need text, visuals and a couple of buttons which can all be done through SVG.
I think it plays around a common case of a manager saving their ass in front of superiors by shouldering the blame on an unsuspicious employee (“what were you doing all these months, what’s the state of the project, and how are you planning to deliver?”). With time the latter becomes experienced enough to not take the blame, and detects these attempts easily, because it is always happen to be “their” fault.

(Sorry if that was obvious and you meant something else.)
I'm sorry I misread this.

> the backporting part was just hearsay that it was under debate

I guess if it is just hearsay then thats something else. Does Debian have guidelines about what they wouldn't backport?
Gamification is nothing new, and can have big impacts

> Implementing the Apgar score introduced a spirit of competition because the doctors inherently wanted the newborns they delivered to have better scores.
Considering that COVID is most commonly spread through airborne droplets (this is why masks work), focusing on hand sanitizer and seat belts and saying the plane is the safest part of the trip is both misguided and flat out wrong.