skysight-inc/HackerNews huggingface dataset:
Yes. In 4 days the difficulty will adjust and it will be 20+% easier to mine a coin. As more people start back mining difficulty will adjust again
Depends how you handle existing users.

If on such a form you output something like, "a user with this email address already exists", bots with targeted email could scan for site accounts.

On the other hand on a separate login form, you can always output "invalid credentials" on non matching email or password.
Sort of. All things being equal, lower difficulty means more profitable. But the difficulty is updated every 2 weeks (1440 blocks) to try and stay at 10 mins between blocks, so any profitability bump will only last for up to 4 weeks (the first retarget may not be fully enough if the hashrate drop occurs in the middle)
That doesn't make much sense to me. You're not "free" to do X if X is punished by law.

By that logic you're also free to kill your neighbor, you'll just suffer consequences.
Lack of real need I think.

Most of the computers in the world are either dedicated embedded controllers or end user devices. Concurrency in embedded controllers is pretty much an ordinary thing and has been since the days of the 6502/Z80/8080. For end user devices the kind of concurrency that matters to the end user is also not extraordinary, plenty of things happen in the background when one is browsing, word processing, listening to music, etc.

So that leaves concurrency inside applications and that just isn't something that affects most of the end users. There really isn't much for a word processor to actually do while the user is thinking about which key to press so it can do those few things that there was not time for during the keypress.

Mostly what is needed is more efficient code. Niklaus Wirth was complaining that code was getting slower more quickly than hardware was getting faster forty years in 1995 and it seems that he is still right.

See https://blog.frantovo.cz/s/1576/Niklaus%20Wirth%20-%20A%20Pl...
Not Binance the exchange, but the sub-company that offers advanced financial instruments.
Hey maybe I might be able to finally get a dang graphics card for my (formerly) new computer after failing to secure one for over 9 months now :-)
For DS and algos, formally proving properties of things would definitely be considerd an academic activity.
The floating point standard defines various float types, the common float/double types are called binary32 and binary64. It also defines decimal types.

> integer unscaled value + integer scale

binary float does the same, just using 2^exp instead of 10^exp for scale.
Pricier energy?
At these levels, not much. Bitcoin’s security is still rock solid and pulling off an attack is still incredibly expensive. For those who are still mining, ie. the rest of the world, mining will be more profitable until the Chinese hashing power migrates to a different country.
You could get ISDN2 installed on domestic premises in the UK. It wasn't cheap though, because as soon as you wanted a bonded 128k channel the cost could become somewhat eye watering for a domestic user (or even a small business).

The good thing though was that you got a guaranteed 64k rather than the vagueries of a 56k modem that in practice never actually worked at 56k, more like 30-45k depending on phone line quality.

On top of that you could (if your wallet was fat enough) get ISDN30 (E1) which was akin to a T1 but ~500k faster.

I did a fair amount of commissioning of these things back in the 90's.
Looking at https://sre.google/books/, I find that "Site Reliability Engineering: How Google Runs Production Services" is the third one, after two others that are very similar (judging solely by the titles...) Any insight about them? Maybe some of the other two has become a better first read?
I fully agree with this. I work with a lot of sales people, and this describes the best ones.

They are also the best at running meetings. They never let a meeting end without clear actions and owners. It's quite impressive to watch - I didn't realise how much skill there was in running meetings until I saw one of these folks run a few.
I agree, Vanguard is one of the best funds with low commissions. Nowadays there's no point putting your money in a bank account, so I looked into ways of investing the money. After carefully considering different options, I decided this was the best way to proceed with the minimum risk and with a good return.

Every month I transfer a bit, without looking if the stock goes up or down. The best goal is to invest intelligently for the long-term. Broad-based index have proven to be a good choice for long-term.
https://news.ycombinator.com/item?id=25787548

I've never used Elixir so can't say whether the criticisms are justified.
Will we see Star Wars like battles in our lifetimes? That would be dope.
Here's a Twitter thread from a few days ago:

https://twitter.com/saifedean/status/1408346196490473476

And one from yesterday:

https://twitter.com/SinoCrypto/status/1409227438262046723
To get a definitive answer I suggest that you email the moderator: hn@ycombinator.com

Best of luck!
What's wrong with using http://left-pad.io/ ;)
I tried to have fun with comment filter to figure out what causes comments to trigger it but it seem it is implemented so that when you get couple comments removed you are no longer able to put any comment, they are just going to vanish whatever you write.
"Although he wears a Nazi uniform and speaks German well, he gives himself by a minor detail: his fingers."

I thought perhaps the author was going to discuss comparison to real world fingerprints. Here's are a few questions for readers: First, how much can a "device fingerprint" be used to identify a person. Is it identifiying a device, or only the person who is using it. How do we know who is that person. Second, is a "device fingerprint" like a real world one where someone can chop off someone else's finger and, as seen in popular TV/film entertainment, use it to gain entry into some highly restricted area. Third, assuming the answer is yes, what stops the collector of a "device fingerprint" from mis-using it. As long as she can make network connections appear to be coming from a plausibly genuine IP address, how would anyone distinguish a fraudulent user of the "device fingerprint" from an "authentic" one. (For example, the collector of the fingerprint could use it to impersonate the true owner of the device.) At least with real world fingerprints, they are physically attached to our person. Neither copying and re-using them nor stealing someone's finger is trivial. And generally online advertising firms are not in the practice of collecting real world fingerprints; those taking real world prints are often government agencies. We may have certains protections under the law against the government. We cannot make the same claims about "device fingerprints".

As a user, I have not found that very many websites/endpoints that I use require any sort of complex fingerprint. I can retrieve the data I want without using a bloated graphical browser, running Javascript or sending a bunch of gratuitous HTTP headers. I send only two: Host and Connection. I cannot remember the last time this did not work. I never see any ads. As such, I struggle to understand all the fuss about "device fingerprints". This is voluntary data transfer to advertisers. If we send all sorts of data to websites/endpoints every time we make a simple HTTP request, then obviously that data is going to be used for something. The user generally has no legal/contractual control over how the data will be used. For example, the user may see ads as a result. Whereas if we keep requests brief and do not send heaps of gratuitous data, it stands to reason we would see less advertising, and certainly less targeted advertising.
Not that coin :)
(Etherum is on GPUs but bitcoin on ASICs mostly)
Demo: https://mirotalk.up.railway.app/
The article I link implies they use each bottle of DNA in a day (not each batch, a bottle from the batch that they thaw for use).

I imagine it's a quality control thing.
This is basically really good news for bitcoin, since China will no longer source the majority of hashing power. It’s an opportunity to further decentralize hashing power across the globe, and for the west to take a stronger foothold.
I find it physically difficult to fully extend my middle finger while my ring finger is curled up. If I put my thumb on it I have no issues, but otherwise it feels uncomfortable.
Wow. The Architecture of Open Source Applications series of books has been a long time favorite of mine. So the premise of this course, that each student will produce a chapter for a similar book, is absolutely fascinating!

Thank you for sharing, and I am really excited to dig into the 6 (and counting) books the students of this course have produced.
Oh no, free gear!

If anyone else would like to "trick" a right-wing extremist by giving them free single-use merch, please contact me for a delivery address.
PoliticalNews.ycombinator.com
If we want to perceive JS as it is we need to follow its history, understand the basic ideas behind different features of the language, understand the trade-offs behind various design decisions, etc.

Basically, it was meant to be a dialect of Scheme, but with map and array data structures at the bottom, as opposed to lists (hello, Clojure!). Suddenly, the last-minute decision was made to add Java-like syntax and OOP to this language and rebrand it as 'JavaScript'. Brendan Eich did the best he could in the limited timeframe to implement this. Then in 2015 'design-by-committee' approach was accepted and horrible feature creep started. We can then investigate every feature and how it pushed individual company's agendas while compromising the integrity and vision of the language, but that's a typical design-by-committee story.
Ferengi = Jews ?
I am also doing that frequently.

I spend a bunch of time writing comment only to find out it does not improve the discussion one iota, so I delete it.

But having an occasion to think something through lets me organize my thoughts a tiny bit better.
China Wraps Up 1-Year Mock Moon Mission to Lunar Palace 1 (2018)
Reminds me of 'Professor Lockdown' Neil Ferguson, 53, who resigned from SAGE last year after also getting caught having an affair and breaking his own social distancing policies.

Best part is that back then, this same Health Secretary Matt Hancock was criticizing Neil Ferguson for doing so. Now he's caught doing the exact same thing too. Full circle.
I recommend the excellent video by Youtuber Tom Scott "YouTube's Copyright System Isn't Broken. The World's Is." https://www.youtube.com/watch?v=1Jwo5qc78QU

While I agree with the OP in broad strokes (they clearly have the right to post and profit off their performance), I find that the vast majority of comments on Youtube's copyright claim system fail to even acknowledge major aspects of the problem. Perhaps Youtube's practical monopoly does it a disservice here, and it's hard to separate "big self publishing video platform" problems with Youtube specific problems.

Without a system like YT currently has, it would get absolutely sued into oblivion by rightful copyright complaints. This is in many ways is a problem of copyright law not being designed with modern technology in mind. I think a good first step would be a way for copyright owners to be punished for broadly overreaching with their claims.
The only use cases are the ones that fit the $5 free tier.
And over 3,5 hours, not 5.
This entire project should be copied verbatim into browser bug trackers, imho.
The protocol is configured to aim for 10 minute block intervals. If in a 2 week period there too many or too little blocks the difficulty to find a new block is adjusted for the next 2 weeks.

This drop is caused by miners moving from China to other countries.
Or that governments just don't want you to use your computer to solve certain equations.

Either way it is good for BTC as China will no longer be able to pull 51% attack.
Are you sure it's illegal in the EU? Pretty much any wine sold adds sulfites to stop the fermentation process. AFAIK all that's required is that they're labelled as containing sulfites.

See: https://en.wikipedia.org/wiki/Sulfite_food_and_beverage_addi...
Was BTC ever actually useful? The closest to usefulness it ever came was in the beginning as a playground for early crypto enthusiasts.

Afterwards, it was just a hype and speculation object.

It was never suitable for transaction processing or value storage.
Haa Okay.
Will improve. Thanks
Yeah, for such a globally known brand that is so widely available and used £150m seems like quite a small sales figure.

Of course as a company with such humble beginnings and simple structure it's a great figure.
My company also enforces some pretty strict rules; no repeating combinations, or things like “1234” or “abcd”. I suspect most people now have to write down their passwords, making it less safe.
The crux really is the FCA raising a red flag so people who wouldn't normally think will maybe think before buying into the latest `invest in crypto` advert that have become widespread and the latest FOTM(flavour of the month).

The other aspect for the FCA doing this, will be to curtail calls etc by those who get burned and go running to the FCA who can point out they told you so and it is nothing they can do as not under their remit.

But yes, binance operates outside the UK (Cayman islands - which for me is always a red flag for anything finance), so the net effect upon operation will be zero. However, marketing wise - the foundations have been laid.

One upshot of all this I hope is that web adverts (including youtube etc) may have to filter out these crypto investment ones and see UK residence not see any of them. Least that is my dream hope from this.
We're seeing the same thing (to a lesser extent) in the UK and (I expect) most other places. It cannot end well - Mass marketing is the one of the final levels of the pyramid before it runs out of marks.
In the context of recent news about a planned Russia-China moon base:

https://www.theguardian.com/science/2021/jun/25/russia-china...

For more background on controlled ecological life support systems, check out what the Soviets achieved with BIOS-3 in the 1970s:

https://en.wikipedia.org/wiki/BIOS-3
Spelling, please!

...another 27%, down ~62% from peak, now...
People aren't stopping their mining because the price fell, they are stopping their mining because of regulatory pressure from China. Miners that are still running today just get to rake in the benefits of China pulling out of the game.

The profits will last until new datacenters are set up outside of China. It's a slow process to do that, hashrate might not return to its peak value for 6+ months.
It is basically like Heinz Ketchup.

It reaches a point where it has economy of scale and specific taste profile developed that it is very hard for others to break into the market. Similar to bake beans for those living in UK.

The cost of ingredient is so low in the overall of things, restaurants, owner, vendors or whatever are not willing to switch ingredients and risk losing their customers. Tabasco is similar because majority of their business actually resides in Food Services sector and not consumers. The basic rule of thumb in Food offering, dont FUCK with your recipes.

I remember when I was still in the Food sector I was trying to import and distribute Sriracha for years in the late 00s and very early 10s. Every time the answer has been not enough capacity. Demand outstripping Supply in most of their important / domestic ( US ) market. Importers have to rely on non-official parallel import channels. Somehow I think it went internet viral by mid 10s, which in turns generate further interest. And a whole positive feedback loop was formed. Worth noting is that these things takes a long time to make. I dont know about Sriracha but Tabasco takes up to three years. Once you factor in capacity planning and sourcing of quality chillies ( and assuming yields are good ), that is why supply takes time to catch up.

Unfortunately these type of investment takes a very long time and are not something VC likes to invest in. But for me they are sometimes far more interesting and fascinating than most tech.
For someone who enjoys claiming "odd straw man" in your original comment, you surely do love making "odd straw man" out of my comment.
In theory yes but it takes while before difficulty adjusts and since the price also doped it likely doesn't matter much.

Its more of a problem security wise. There is now guaranteed hardware out there that can produce more than 50% of the hash power but its currently not "working" for bitcoin. This in theory could mean someone is secretly mining a longer chain which could later be made public and "reverse" the other chain.

This is very very unlikely to be the case because the "missing hashpower" is likely being moved to other locations and that is the reason why it is not running.
Users interesting in this story may also be interested in this great 55 minute documentary covering the first few years of NASA's Curiosity rover: https://www.youtube.com/watch?v=qaUhLXolGaI (the active rover before NASA's more recent Perseverance landing).
To do that you'd need to spend a significant amount of money on mining hardware, and then use it to make your investment lose its value. That would be a very odd strategy. What would the goal be?
Two and twenty is long dead. Hedge fund fees fall further below onetime standard
Read 'third wave' and was not thinking about coffee! Sign of the times I guess...
> Fiat is run by democracies with elections, they're not pay-to-play oligopolies like crypto.

Cryptocurrencies are far more democratic: every time a transaction is submitted the network votes on whether or not it is valid using consensus mechanisms like proof of work or proof of stake.

Fiat currencies are far less democratic: we can only vote for the people that will control them, not for what they will actually do with the currency. In the UK we do not vote for any positions in the Bank of England.

> Monetary and fiscal policies can be used to control the health of the economy. It's part of a wide system that also offers education, medical care, transportation, and many other utilities for actual people. Crypto offers what, exactly?

Monetary and fiscal policies can still operate without control of the currency, see Eurozone members having local policies. All it means is that they can’t arbitrarily print the currency.

> NFTs are worthless garbage nobody can legislate. Digital barcodes. Nation states have robust IP laws to protect and transfer ownership.

You misunderstand NFTs. It is not about intellectual property, it is about property. I can prove I have ownership of any token instantly and trustlessly.

> Crypto wastes energy. It also wastes human brains that could be solving more pertinent problems.

Many cryptocurrencies have negligible energy usage even over the entire network: see Nano. Even in Bitcoin, how is the energy usage a “waste”? It is holding the entire network together.

And with human brains, cryptocurrency research has had very beneficial impact in other fields, see for example Monero’s development of RingCT and Bulletproofs+. And that is ignoring the fact that these brains are reshaping our entire financial infrastructure.

> Quantum computing will render all of the blockchain useless anyway.

Not really. Even if quantum computing was possible now Bitcoin would still be usable. And advancements are being made across all cryptocurrencies to secure them better.
> The Boeing Emergency Airworthiness Directive...

One out of 313 active AD's [1], 12 with no effective dates that seems to signify a different class of AD's because their issue dates are all over the map. I'm okay with 313 patches that I apply and the computer executes it from then onwards. Above a certain limit of number of AD's that should be memorized by pilots at all times, instead of entered into maintenance tracking systems for example, I'd like to hear from pilots why safety-wise that doesn't trigger a type re-certification.

I know that is expensive and time-consuming, but I certainly don't expect for example, my most senior ops team members to recall off the top of their heads more than a handful of critical procedures to execute on-the-spot without referring to the runbooks. Why does it appear that AD's are expecting pilots to apply a seemingly unbounded number of these "patches" like computers without re-training?

[1] https://www.faa.gov/regulations_policies/airworthiness_direc...
Well, somebody somewhere makes money out of pointless new jets etc. I think that vested interests control such a lot, its hard to get people to cooperate on things etc, that if we could come up with some carbon capture which side-steps those problems, it'd be good. E:g some cheap device people could have in their home or garden that removes CO2, that enough concerned folks bought and operated that it made a difference, even whilst their neighbours denied any link to fossil fuels. Or some way of converting CO2 into something of commercial value, maybe a construction material? Apparently there's already some kind of rock salt thing you can put on fields that helps crops as well as takes out CO2, dunno how much of a contribution that can make. The fact that some US states dominated by oil industry, have built a load of wind and solar farms because its cheaper, gives me hope that the right product could gain mass acceptance. Can we look at excessive CO2 in the atmosphere as a raw material for making something else useful? I'm not a chemist though. :(
Go Digital
Surface ocean temperatures. It is in no way the same thing as the entire body of water raising in temperature by that same number.
On a non-serious note, it would be entertaining to see the two rovers fight on Mars.
> China will no longer be able to pull 51% attack

Any major government, the PRC included, has it well within its power to repurpose existing computing hardware to launch a 51% attack on Bitcoin. They don’t, because why would they. What has changed is a small group of private individuals in China can no longer coördinate such an attack.
> Admittedly the "library as a service" ones are more for niche use cases, like how I go to a website sometimes to get the current Unix timestamp.

alias t='date +%s'
I think you've got that backwards. Profitability doesn't go up until the difficulty adjusts. Once the difficulty adjusts, it's cheaper to mine each Bitcoin and everyone who still has a rig running will make more money.

The increased profits will continue until everyone who was displaced from China can find a new home, but this isn't going to be a quick process, Bitcoin requires enough datacenter space that all the Bitcoin-ready datacenters outside of China are already full!
One thing that is interesting about this, is that people sometimes end up building an (incomplete) implementation of relational algebra to achieve this, where any given system in the game logic pipeline might join over multiple components.
Spreadbetting is tax-free in the UK and the FCA banned spreadbetting on bitcoin last year. IG, CMC and CityIndex all closed out client positions and delisted all crypto pairs.
We've had these exact same sorts of issues in PHP. It can go undetected for awhile and cause subtle bugs. A good type system helps a lot. I appreciate that Kotlin is more stringent than Java with no implicit conversions between Int/Long/Float/Double.
Designing the Serviceability Platform at Swiggy for High Scale – Part 1
Mind sharing references for this ?
Subdomains for IPFS
Domain Name System for IPFS. You can get a subdomain for your Dapp
IPFS is one of the coolest things out there, but as much as we like it we still need a human-readable name for the URLs as a Source of Trust, this is why we have built IPDS.io