skysight-inc/HackerNews huggingface dataset:
> Why is that? I don’t understand why you should minimize the loss of entropy at any particular step. Is it to help resist collisions?

SHA 256 is built out of 64 rounds of an internal mixing function.

That is, SHA256 is basically a glorified mix(mix(mix(mix...(mix(internal_state))))))))))))))) function, with 64x mixes applied to the internal data per input.

Now consider how "mix" should be designed.

1. If "mix" is invertible, it means that every possible input "pigeonholes" to exactly one possible output. Mathematically, we'd call invertible functions "one-to-one" and "onto".

2. If "mix" is not invertible, then the above condition does not hold.

-------------

So lets look at the simplest non-invertible function for 3-bit numbers as an example. And see what happens when we use it as a "mixing" function.

Input | Output
--------------
000 | 001
001 | 010
010 | 011
011 | 100
100 | 101
101 | 110
110 | 111 <----
111 | 111 <----

Notice that 110 and 111 both "map" to 111. So what happens when we run mix(mix(mix(mix...(data)))) ??

Eventually, after about 8 rounds, all your data turns into "111" eventually. You're "losing" information. It means that everyone can predict that your hash probably will be 111 eventually.

Now lets consider the invertible function:

Input | Output
--------------
000 | 001
001 | 010
010 | 011
011 | 100
100 | 101
101 | 110
110 | 111
111 | 000 <----

000 was "unchosen" in previous function, and now we have one-to-one and onto . invertibility. As such mix(mix(mix(mix(...(data)))) will 100% depend on the input data.

Of course, this mixing function is simply "(data+1) modulo 8", which is insufficient for mixing purposes. (The "confusion" is pretty bad and very predictable, but you can see how "add +1" is actually kind of good at diffusion when "all the carries" line up... such as 011 -> 100 is changing a lot of bits from one mix). But you can imagine that even in this simplest example, the invertible function leads to a less-predictable internal state than the non-invertible function.

---------

Functions should also be "nonlinear". The above x+1 mixing function is bad because its linear (5x mixing functions can be simplified into x+5). It turns out that combinations of XOR, bitshifts, and ADDs could be non-linear, but you need to run a bunch of tests over the inputs/outputs to be sure that your particular mixing function is sufficient.
I have 1000/1000 fiber i my Oslo apartment. Pointless most of the time, especially since i only run gigabit network.
Modern SSDs can handle it: 25Gbps is ~3GB/s, which you can do with a PCIe 3.0 NVMe SSD. PCI 4.0 NVMe SSDs can do 5.1GB/s, or ~41Gbps.
> “let me explain something using terrible metaphors because I fail to understand the math myself”.

Some of these channels have millions of viewers, and the one I think you are referring to has 11M. Remember when the Reimann Zeta function summation of -1/12 was all the rage, or the Banach-Tarsky paradox? Google either of those and there are a dozen YouTube videos for each one. These are post-doctoral topics that become name-dropping buzzwords, I would never claim to understand these, yet people who watched the video do.

Which seems like a lot what the internet has given us: information, not knowledge. To quote a speaker I saw at Siggraph in ~1996, "Information is not power, knowledge is power." This hit home. We've seen it from people reading WebMD in the 2000's and then trying to teach their doctors, to the crazy scientific ignorance about mask mandates today. All because of internet edutainment or in the worst-case misinformation.

Anyway, yes, her article got cynical fast, but I think it was because she bounded with realism because plotted on the arch of technology evolution: it would take thousands of generations (even at an exponential pace) to create tech that can take actual measurements. That seems like good science to me.
It's Solidity: https://soliditylang.org/
I don’t buy it. There was a discussion on a post about Netflix about how their “long tail” of niche content is getting totally blown out of the water by the likes of Ted Lasso, Severance, and pretty much any of the Mouse’s tentpole properties. Hell Netflix’s most successful shows right now are all big tentpole productions by Shonda Rimes.

The problem with art and aesthetics (and many other things) (1) is that people often don’t know what they want until they see or hear it, and (2) there is a social element to it - people derive value from being part of a shared experience.
In the end it's just an arms race with basically no use cases. You could call it future proofing but the switches will have to be replaced before such speeds could realistically be used (8k/16k video or sth like that?)

Having fiber without pon is great, means no new infrastructure for decades. But anything above 10gbits will be too much to use realistically, even for smaller companies.
It's easy to get all the above and fast internet without much trouble. An old PC with OPNsense can do that.
They're both what now?
Dude. Turn it up! This is my favorite part.
Seems like this will also get to a point where we would just take a photo and animate it completely as a 3D mesh. Like that picture, just on a few photos, at some point, would generate a photorealistic, ray-traced 3D asset and also a fully interactable 2D motion paired with GPT-4 or 5 where you could have indistinguishable level of human like interaction (ex. Fable studio)

After a couple dozen more papers and prototypes, we could have ultrasound haptic feedback and some 3D holographic projector where we achieve a true augmented reality.

Going a bit further with this idea, you could essentially create augmented 3D objects that would be indistinguishable from the real thing until you apply enough force enough to break through some upper limit of ultrasound generated haptic pressure (as to not hurt the end user through some legislative regulation). For example, opposing magnets that can be pushed together past a certain point where the illusion of tactility is gone.

What would a reality like that be like? Where you could not only have limitless content media generator but you could conjure up those assets in your living room and have them interact kinetically with the real world. We are talking 3D holographic assets with ultrasound haptic simulator that can apply pressure to any object from all directions.

https://www.youtube.com/watch?v=fwTcfwbrNO4

https://www.youtube.com/watch?v=jDRTghGZ7XU

We might not even need expensive robots in the future. Just conjure up a 3D human via some ultrasound/holograph projector which can apply enough force to objects.
Is there some reason to think that these things will be effected?

I read that as "yeah keep coming to class, everyone will get paid, the lights will be on".

I don't see why that wouldn't be true.
They have had some surprisingly non-partisan rulings recently, I am hoping there are some judges who have paid attention to the chaos caused by that ruling and see the error if their ways.

> They invented it for themselves ...

Nailed it on the head. This power they seem to be excercising is not derived from the will if the governed. There are limits to the authority a government has, that is not defined in law but in the people's willingness to tolerate the governments behavior.

For example in Germany resisting arrest is not illegal because the government cannot make laws against basic human instinct while in China the government can treat people like properties.
Regarding the security concerns, I assume the reduction in poverty overseas would have tremendous security benefits here. I also tend not to believe US agriculture would not simply reduce its output to dangerously low levels, but that’s harder to speculate about.
Borderlands at 50GB isn't the largest PS5 game. I don't know what is but Horizon Forbidden West was ~90GB.
>>Myself? I know I would rather live in pre-historic state, foraging with a bunch of my relatives and friends, instead of in the current day Philippines.

Pre-historic life was brutal. Every one had ring worms. Every one had intestinal parasites. People were hungry almost all the time.

A broken leg led to shock and death, and half of children died before the age of five.

You need to study pre-history, or remote tribes that live in pre-historic modes of life. You're yet another person who underestimates the challenge of living, and takes for granted what modern civilization had to overcome.

When you recklessly abolish the innovations, like private property rights, that led to industrial civilization, you create shortages, massive inflation, etc, and quickly see how fragile the economic system was.
>"Pascal is kind of a weird language"

Pascal in Delphi / Lazarus in its current form is a full featured language that implements large amount of common concepts expected from a modern language. I do not see anything weird in it.
Yes, there is before-tax yield and after-tax yield. Tax rates are at historic lows right now and unlikely to stay that way long term (current rate cuts expire after 2025). Since tax applies to all kinds of income, I'm not sure why it should be a big factor in this discussion any more than it is in discussions of crypto, tech salaries, etc.
>For now. Hopefully competition will come to savings accounts eventually.

Looks like it's already here? According to one site[1], there are several banks offering above 0.6% interest.

[1] https://www.bankrate.com/banking/savings/best-high-yield-int...
They didn't say it was faultless. A year & 150 phones calls is a significant improvement on "nope, nope, not ever ever ever ever".

Also the current system at least has the potential to be improved, maybe. While irreversibility is baked into the ideology of many (not all) proponents if crypto.
It seems to me like the comparison needs to be tweaked a bit (long before the possible recovery via the US central bank or treasury comes into play), this was a sort of guarantee/escrow, so let's imagine that you are told to put your 100 $20 bills into a safety deposit box, if you win the auction you give your key to the seller when you get the object, otherwise you can open the box and get your money back.

Only the deposit box has a sliding plate at the bottom that may (or may not) be randomly pulled out and when/if this happens your bills will fall into a shredder.

Would you make the deposit knowing how this particular box is made/managed?

Or would you think that this particular kind of deposit box is flawed?

Point is that you were told nothing in advance about the sliding plate and the shredder.
The useful part is that if you download steam games and your PS5 is updating at the same time, your video call won’t even notice it.

The realistic limits are per connection. But with 25Gbps you can just have multiple connections open without any of them ever affecting any other.
Graphically I love GNOME apps. Usability, I hate them (if you're using a hamburger menu on desktop, you've already failed).

And since GTK throws everything away and start again every now and again (I now have all of GTK2, 3 and 4 on my system) it doesn't feel like a very secure platform for development.
>Or it's just a way to screw younger people who didn't lock in fixed rate mortgages when they could.

Lets say we climb to 15% inflation and subsequently interest rates. Who can afford to pay 150,000$/year on a million $ home? Literally nobody.

The boomer selling the home suddenly cant sell their home for a million. It will have to drop in order to spend that $. That retirement fund is suddenly looking weaker.

Generational wealth is a remarkable field that we don't know anything about. We do know inheritance taxes are absolutely destructive to economies, but 1 generation can't in debt another in order to retire. Soon as you retire, I saw that I will now only work for much much more than you can afford on your fixed income.

The system is understanding this. There's a reason why real yields are negative. Hell Switzerland is -0.75% interest rates. Denmark -0.6%. Japan -0.1%. Most of the west is at 0% or recently increased.
The article just says it was a "cyber fraud incident" which is pretty vague. It may not have been a bill at all.
Screenshots?! I really like to see some screenshots.

What does Ttrpg means?

Technical post get more traction here. Do you have an interesting technical anecdote of a problem that you solved making the game? Perhaps you can write it as a blog post and submit it here.
Sounds extremely subjective. How do you measure it and where do you draw the line? All marketing is somewhat coercive.

How do you get economic and business growth (things which are good for people - jobs and employment) without marketing and advertising?
and even if they have a home, they may not be able to accommodate another person.
You are assuming so much about what I said. Writing inclusively is not for everyone all of the time, it’s when you’re writing to the broadest possible audience and clarity, ease of understanding, and accessibility are paramount.

> Is your idea of perfect communication something that omits every daily experience…

No, what? It’s about avoiding terms where the context for understanding them are experiences not everyone has — “temba his arms wide” only makes sense to the Darmok.

> How is it "violence" to someone in a wheelchair to talk about walking to the store.

It’s not what are you even taking about? You should not presume that your reader can walk by saying things like “when you are out walking to the store” but there’s literally nothing wrong with mentioning walking.

> Policing every bit of language to cater to every potential group robs the language of its color

So this isn’t true, nobody is trying to force this on all language. But you have to take a step back and reflect on this. Given a hypothetical world where the choice was language color and including groups different from your own experience you really picked the former?
We just got a spear phishing email to one of our finance department people. It appeared "From" the CEO. Must have pulled the names from LinkedIn.

Had some legitimate company in the email. Turns out that company even has a fraud page on their website since so many people seem to get these emails. It must work enough that the scammers keep trying.

https://www.nortonrosefulbright.com/en/global-statement/frau...
It also makes function pointer types much clearer:

using func_ptr = float(int);

// Given
float some_func(int);

// Then
func_ptr* a = &some_func;

// Also
func_ptr* b = [] (int x) { return 0.f; };
I've always found it ironic that the Bitcoin maximalists are themselves advocating for the freedom to print money.

A money system where currencies are printable by anyone and where they compete with each other on open markets looks a lot like a decentralized, libertarian version of MMT.
Your modern compiler is unlikely to accept this code.
> The algorithms they use to make the image of the black hole were never tested against a known celestial body to calibrate the algorithms.

This is not true, as is much of the rest of your comment. Please read the papers, they say everything that the collaboration did.
In capital city, I'd say it's about $4-5/meal (including drink) in daily basis. For those who eat lots of things, $7/meal makes them full.

---

footnote here: official income record of thai people/businesses does not really reflect reality. Lots of entities are kind of off-system.
Do the banks in this case provide some assurance / can they be sure who is on the other end of the transfer?
Does this mean an infitesimal bump in the value of remaining ethereum?
Looper: Meta end-to-end ML platform for product decisions
Where? I pay 60$ for mildly spotty 120mbps and that was very good deal a year ago. It's pretty sad considering I live in Montréal. I know western Canada has way better internet/data prices though
This video presents a version where the piece is sped up to 36 seconds in length: https://www.youtube.com/watch?v=h5-Yo328Rp4
Here are some of the leading brands in india

Hero : https://heroelectric.in/

This is a standard motorcycle brand diversifying into electric

Aether: https://www.atherenergy.com/

This is a recently funded electric vehicle startup
Meanwhile, as a gay man I’m excited any time I find a show with any kind of halfway decent gay representation. There’s still a long way to go IMO.
> without a push system it is useless on modern mobile operating systems.

If by "push" you mean sending notifications through 3rd party servers like google's Firebase, I'd like not to use it.

I was using XMPP on mobile for years, receiving messages in background normal way almost with no battery drain.

I also run k9mail 24/7 with my personal IMAP server, receiving messages in realtime (imap idle) with almost no battery waste.

Battery is wasted more by bloated frameworks like Electron rather than by network activity itself.
Does anyone have a good primer about optical networking links? Single and multimode fiber, connectors, transcievers, etc. When and why you would choose different technologies, how much they cost, etc. I'm realizing that I have a large hole in my knowledge there. Google is full of mid-tier SEO garbage as usual.
I'll just add that I appreciate her cynicism because there is a staggering amount of bullshit in the high energy theory community. Embracing creativity is absolutely paramount, but people need to grow up and accept their own theory failures when they occur.
Just because you come from a place of great financial privilege does not mean others have no use for a censorship resistant form of money.

Afghanistan: https://theintercept.com/2022/01/19/crypto-afghanistan-sanct...

Argentina: https://www.bbc.com/news/business-60912789

Russia: https://www.reuters.com/world/europe/navalny-ally-urges-dono...

Lebanon: https://www.reuters.com/article/lebanon-crypto-currency-yout...

Nigeria: https://www.coindesk.com/tech/2020/10/16/nigerian-banks-shut...

Ukraine: https://www.cnbc.com/2022/03/23/ukrainian-flees-to-poland-wi...

Myanmar: https://www.bloomberg.com/news/articles/2021-12-13/myanmar-s...
I had never used an Apple product before buying my mac mini but upon opening the box I had all needed software installed and was able to be productive in under an hour.
Completely agreed. I was skeptical about her at first. My first exposure to her was the panel interview hosted by PBS Space Time "Theories of Everything" https://youtu.be/N_aN8NnoeO0

At first I thought she was biased because she was was so skeptical about almost every point during the discussion, but her logic and arguments were all so solid and well thought out, they were impossible to ignore.

I checked out her channel, and she was the first YouTuber that I found who actually explained the syntax of Quantum Mechanics equations and what Kets are. https://youtu.be/ctXDXABJRtg

More detailed content would be greatly welcomed from her.
It's not really vague, it's a very clear question. And my response is phrased as a question because it depends on your personal morality. No one can answer for you. Plus, I was very curious to hear other people's position on the importance of truth (or lack thereof), and I find that I am compelled to engage in whatever way I feel at the time of commenting.

I personally am not sure how important I think the truth is as a moral good. I feel that as time has gone on, I've seen the dissolution on a societal level, and I now value truth more than I once did.
So... you can blow through your arbitrary bullshit cap in 5 minutes rather than 20 minutes?

Yeah, fuck comcast... err... xfinity. Or whatever name they changed to.
There was Tkabber also.
It seems like both problems in the Go standard library should be fixable? They are corner cases that could be made to work without breaking anyone.
Or https://www.fleetlabs.com/constipation-relief-products/enema...
I still don't quite get this. I always imagined a bank wire as a data transfer, and that an actual settlement of hard currency happens sometime thereafter. How is it irreversible, in this regard?
it would be nice to live through a crescendo
The last spiderman was something around 200gb, and I think call of duty is even larger, but i don't play that.

Their point still stands though: the download servers bandwidth usually throttles below gigabit, so it's gonna be hard to saturate that line today
That's terrible. I've only heard bad things about HSBC, although that's true of most banks to be honest.

However, it's going to take more than 150 calls and a lawyer to hard fork the ethereum chain to roll back this contract.

Perhaps a class action lawsuit can force the auctioneers to pay back the money despite not having access to it themselves. Either way, there's literally no way for the misdirected cryptocurrency to ever return.
I'm actually surprised I had to read this far down the comments to see a reference to the right-left rule. Is that not common knowledge anymore for C programmers?
Hey, it's the man behind the parallela chip (and the 100$ sbc)

He worked hard to deliver his kickstarter. Happy to see him still active in the field.
There is no language ether. Dictionary words such as folder originally applying to paper was a metaphor that realized widespread usage and eventually made it into dictionary for computer directories. Libsoftiktok was engaged in public shaming of LGBT people. That's not doxxing per se but shaming. Using public records is not doxxing. Doxxing is exposing public records with the intent to excite harm. Investigative journalism is defined as exposing things hidden that some people would rather keep hidden. Its not doxxing though because of the power dynamic difference, those being exposed are typically the rich and powerful. These people now whine about cancel culture. Intent is key. Doxxing is done with an intent and expectation of harm, like swatting. Usually the person being doxxed is not powerful but helpless. Alex Jones doxxed Sandy Hook families and they received death threats and had to move. Jones just didn't reveal otherwise public information, he whipped up animosity against those families using an online mob. Doxxing requires more than just exposing someone's personal public info. It also is done with an expectation to do bodily harm in an online mob environment. Libsoftiktok was exposing public information in an online mob fervently anti LGBT. Which comes closer to the spirit of doxing than Investigative journalism done on Libsoftiktok. But at the end of the day, words aren't owned by anyone and usage is always evolving. Doxxing is slang at best. Slang is just new words used colloquially and very loose in meaning. Get over it. At the end of the day the concern is intent to do harm. Clearly Libsoftiktok purposeful shaming speaks to intent. Reap what you sow. Live by exposing others, be prepared to be exposed
Pull the thing out of the house and let it burn outside. It is a relatively small battery so outside it won't do much harm, this in contrast to what it seems to do in that room. Tossing it in the pool is also possible but given the small size that'd be a waste of pool water which would need to be replaced. Just let it burn outside. Use a rake, broom or whatever other long thing at hand to pull the thing outside.
JPMorgan employees describe 'fear of God' & 'panic' as office attendance tracked
The scammers typically recruit fall guys to open accounts to receive the funds by offering them some small portion of the take. Along with a story about it being a favor , like "I'm from outside the country and don't have a bank account to receive my recent inheritance, etc".

With perhaps some intermediate transfers to other fall guys if it's a large amount.

The funds are withdrawn in sub $10k chunks by the fall guys in cash as they arrive and the larger portion handed over to the scammer.
A lot of other online banks did the same. They were essentially paying to acquire customers. 8% was not a typical interest rate in savings accounts at that time.

Not unlike promotional rates at other types of subscription-like businesses that offer great rates to pull you in, hoping you’ll stay after the promotional period ends because of the inconvenience of switching.