skysight-inc/HackerNews huggingface dataset:
Even more so in the case of Bitcoin, where the cost of mining is always slowly converging towards the market price (if cost of mining is higher than market price some people stop, difficulty drops and mining becomes cheaper; if cost of mining is lower than market price more people start mining).
It is decidedly not a simulator; just a pile of carefully crafted CSS, HTML and JavaScript to make it look like a working system.
Legacy exemption because it existed before EU entry. No additional products can be zero-rated now. (Which is why the UK tabloid press is upset about "EU's sexist tampon tax"...)
They can, but why would they? They're probably busy, possibly with family. These aren't graduates desperate for a job, if they're the ideal employee you're looking for they'll have a comfortable fallback in continuing what they're doing and plenty of other companies that don't want them to do homework.

What if 9 great companies give just 2 hours of homework and 1 gives none?
Part of the value of a real pair programming session is brainstorming and discovering together. That part can't happen in a known problem for the interviewer. How does that part play in on the interview? I like how you use a reproducible problem for comparison, a lot of advocates ignore that.
Serving the Python Community Through Content Curation (Interview)
As Oscar Wilde said, "All art is useless".
C: is the equivalent of /bin and /sbin, it's an assign, not a drive! AmigaOS isn't Windows!!!
Was pretty trivial to add. Done in v0.2 [1]. See the internal link comment in the usage text.

[1]: https://github.com/oxplot/svglinkify/releases/tag/v0.2
Feminism = Biggest scam since 1970s
How do you avoid having complicated, nested data structures in your software if your business is complicated?
Yeah, I didn't know what to expect.

Nowadays my "wallpaper" is the terminal or browser app, maximized
Building Distributed Systems on Top of Apache Zookeeper (Interview)
It is scary for legitimate reasons. It doesn't mean we should stop the advancement of science, but ignoring human tendencies to leverage the best of science to amplify the destructive abilities of worst in human nature is a bit on the naive side.

Whether we are wise enough to handle our intelligence is still an open question.
> As I argued, once Bitcoin’s price falls below its cost of mining, the incentive to mine will deteriorate, thrusting bitcoin into a death spiral.

When bitcoin appeared it's price was zero, yet people still mined it despite being a clear "worthless" activity.
Orkney are in the early stages of moving to hydrogen from electrolysis for the ferries. To replace diesel and because they've already reached 100% of power from renewables so they're actively looking for other fossil uses they can move to renewable.

Germany has some similar projects creating hydrogen as storage for renewables, and replacing some diesel trains with hydrogen.

I'm less convinced it will replace petrol, but there is definitely a case for it replacing many uses of diesel.
And if mining slows too much where there's not enough block space for transactions, the fee market will pep up and make it profitable eventually too.
Bitcoin's price drop might look bad enought to warrant sensational articles, but if you take any bitcoin price chart over the last years (like [1]) and switch it to logarithmic price, it doesn't appear exceptional. The same thing happened in 2013.

1: https://coinmarketcap.com/currencies/bitcoin/#charts
There is only so much you can buy in a futures market before it starts pulling the spot market up.
Solving 21st-century problems requires skills that few are trained in
This is wrong argument. Mining costs are different for different miners. Someone has cheap electricity, someone has cheap electronics. If mining is not profitable for some part of miners, they'll stop mining and difficulty of mining will decrease, making mining more profitable again. It's a self-regulating mechanism.
The article is misinformed:

I am the first one to jump on Bitcoin's flaws, but this here just reeks of somebody not understanding the protocol:

> As I argued, once Bitcoin’s price falls below its cost of mining, the incentive to mine will deteriorate, thrusting bitcoin into a death spiral.

The cost of mining adjusts depending on the hash rate, so if nobody is mining the cost of mining goes down until people start mining again.

EDIT:
The mining difficulty gets adjusted only every 2013 blocks, so it might be that mining activity drops so low that the block chain starves out before the difficulty can be adjusted down.

Is this what the article is trying to say?
Based on your graph the income tax became significant in 1943, which was 75 years ago. It was significant in France 30 years before that and in Germany and the UK 100 years before that.

This is actually pretty old and much earlier in development than what China is at right now.
Have been using Koa for a while but I guess Express got its name too famous for any predecessor to take over as JS's web framework even if it means built by the same author.

For one, people pick from number of github stars which is about 40k vs 20k and when you google for node web framework, Express is of course on the first page and Koa is not and for those who read blogs and books from only a few years back, they all talk about Express.
I've been there and visited the mines, I can recommend it if you are in the area, I visited with my dad in my teens and I can still remember the visit. I am sure they were already talking about this back then (~15 years ago).
The current role I'm in did a great job. There was a technical phone interview, but the in person was with the entire team and they gave me a ton of time to interview them and just have a conversation. It was fun and informal and I started the role with a pretty realistic idea of the people I'd be working with. The only thing I'd change is adding in time to actually shadow someone in a similar role and doing some pair programming.
It was the machine to go for 16 bit demoscene and graphics programming in Portugal.

Atari ST were hardly seen, PC were mostly for school and work related tasks, with the Apple devices beyond reach to everyone not at the university shared labs campus.
Because the cost of mining adjusts depending on how many people are mining.
It goes down when the hash rate goes down.
I don't see certifications solving much, other than sheer volume of applications. There are plenty of frauds and not-quite-competent people who hold licenses or certifications in other industries. Further, the type of fraud people are most worried about in this industry are the most likely incompetents to actually get whatever credential is out there; the ones who fail to even do that are the ones who are obvious in a half-hour phone screen.
> governments might start issuing cryptocurrencies.

Great idea... we can go back to the old model of trusting third parties to print our money for us.
And who owns cars? It leads pretty quickly to demographics, even if you condition on prior regressands. Older folks who rarely drive are unlikely to be the target of large gas consumption (and thus commodification of personas), hence demographic spoilage will happen regardless.
Sadly, you are in the minority. Look at this [0]. This is why no one needed a baked in "dark mode" for Windows 98. There is no equivalent dialog in modern Windows. It's ridiculous how much computer interfaces have regressed in recent decades.

[0] https://tinyurl.com/yco7jz92
How to choose a machine learning model
Back then, Bitcoin was full of possibilities. Right now, it seems Bitcoin's utility was, let's just say perhaps exaggerated.
Exactly. I don't understand how the article can miss such a fundamental aspect of Bitcoin's design. What this means is that the cost of mining will go down and adjust accordingly.
It's actually not that simple, and strangely one of those areas where economics has had a blind spot for a long time.

Lots of businesses use cost-plus pricing, which contradicts the econ 101 assumption that you're repeating.

Now, one might naively argue that even with cost-plus pricing, the outcome is still the same because businesses who set their price too high will be either outcompeted or just find no demand either way and disappear from the market.

However, this assumes that the buyer-side utility functions and price expectations are somehow exogenous, and come from outside the entire market system. But that's obviously not true: people form their expectations of how much things are supposed to cost, and even what the value of goods are (see Giffen goods for an extreme case) by looking at the de facto prices of goods -- and those are usually set by the suppliers, using cost-plus pricing.

The bottom line is that utility functions and price expectations are really endogenous, which radically breaks the econ 101 model of supply and demand. I've heard of economists making various attempts to fix their models to account for this, but I'm not aware that a consensus on how to fix this has emerged.
The Legend of Halloween Jack Izle (2018)
If you take any time series asset of the price of any asset, and switch it to logarithmic, none of the drops will appear exceptional either. That’s what logarithmic scale does.
This has been addressed in the article:

> So, it appears bitcoin is now entering a death spiral: If the price continues to drop and the cost of mining does not fall correspondingly (the cost of mining will algorithmically decrease, but not necessarily to same extent as the decline in prices), bitcoin will quickly go to zero.
The sisters who put the rest of us to shame
> Right now, Tesla consumes more than 60% of the world EV batteries

Not sure where you heard that but that is completely false. BYD alone shipped over 100,000 electric cars (not including buses) in the third quarter (compared to Tesla's 83,000). Other Chinese car companies BAIC, Rowe, and Geel all ship over 20k+ plug-ins per quarter.
I've never claimed I envisioned doing it solo. That's where most of the disappointment actually came from: teaching assistants and professors were so uninterested in the subjects they were giving, they'd hardly motivate anyone, let alone give them a chance to participate in anything world-changing. Even to the point that out-of-the-box creativity was punished. That drove the student body to turn into an exam-passing automata.

Universities are a perfect place for that, and I hoped for such a stimulating environment. I did end up meeting a teacher or two in later years that met my expectations, but they never stuck around long enough.

And no, the fame is not the driver, imho: I believe all humans would gladly contribute to a challenging problem solution, without requiring ego satisfaction (that can come later :)).
Is a 90% Efficient Solar Panel Possible?
I think it's ok to flip the script and ask what a candidates favorite language quirk is or if they have a story relating to a language quirk.

In my experience curious developers who like to dive deep light up and love discussing that kind of stuff.

Testing random trivia is dumb.
Sorry for butting in here, but I'm a minimalist and wanted to throw in my two cents. There were a few things that were difficult. One was getting housing right. It took some effort but we now have a place with more than enough space, highly energy efficient, and five minutes walk from work for her (and less for me - I work from home). Getting rid of my car took some re-adjustment. Both really worth it though. Most of the other adjustments were almost trivial. Rather than making things harder they make things MUCH easier. For example when I travel I only carry a single carry on bag. Managing finances are much easier too.

One of the hardest things is not so much doing it (which can take some juggling) but other people's reactions. I remember when I didn't have a TV (I lived for about ten years without one - partner bought one eventually though). People were literally shocked. They would literally stand there mouth agape. "How can you live without a TV" was a question I got very used to. The trouble is people take it as a personal affront. They can get quite shirty about it. Getting rid of the car caused brains to explode! :o)
Well, London cabs might be different but in continental Europe most taxis are slightly modified cars (signs, taximeter, ...) and not purpose-built vehicles. In Germany for example most common taxis are most likely Mercedes Benz E-class, even though that's changing in the last years.
The complexity back then was much simpler; you could mine more with less equipment in less time. So you made more “money”. Heck I mined my first 100 coins on AMD Frozer card in one week time.
Can a DevOps culture help avoid burnout? [video]
Why would the cost of mining not fall correspondingly? It will adjust until it becomes profitable again, nobody is going to run mining farms if they are clearly losing money every single day.
I can recommend Engines of Creation:

1.0 summary: http://web.mit.edu/cortiz/www/3.052/3.052CourseReader/3_Engi...

1.0: http://e-drexler.com/d/06/00/EOC/EOC_Table_of_Contents.html

2.0: https://web.archive.org/web/20140810022659/http://www1.appst...
Tangany Blockchain Cloud Wallet Prepares Beta Program
Tangany, the company behind the blockchain cloud wallet solution prepares the upcoming beta program for private users and first potential business customers. The product offers unique features like private key storage and an insurance module for its users.

Homepage: http://tangany.com
I'm not sure if this has already been suggested, but if it hasn't been, then maybe you could market/describe your add-on as one that prevents sneaky websites from tracking you.

And instead of calling it a anti-paywall add-on, instead call it a anti-tracking add-on.

If you do that though, you may be asked to explain the list of websites for which the add-on activates. I guess you'll need to have some sort of "valid" explanation for that.
he's also the most reliable youtuber imo, come rain or shine he uploads content that is consistently interesting. i follow all of the major "one person" channels on youtube and they all fall behind his metric
In 2013 most people didn't know about bitcoin. A big part of the spike in 2017 was from people who never heard about it before. Today everyone knows about bitcoin.
I've interviewed many folks over the years who talk the talk and just simply ace problem solving, but they can't write a unit test in their preferred language.
Polymers are a simple monomer repeated many times. Proteins can be arbitrary non-repeating sequences. These are not the same.
Aaah. So he's saying that the price might fall so quickly and the hash rate might drop so quickly that the difficulty cannot adjust because they blocks to adjust the difficulty won't get mined?

(The difficulty gets adjusted only every 2013 blocks)
They're an almost completely urban population with a high standard of living. Of course that needs energy and greenshouse emissions to make happen.
Many here are wondering how the chinese government can finance itself when so few people pay income tax. There are many ways for a government to raise funds besides the income tax. People forget that we didn't have income tax in the US for much of our history and a few states still have no income tax.

We've become indoctrinated into thinking income tax is the norm. Nobody questions it but for much of US history, people viewed taxing work as an evil. And income taxes was a temporary tax instituted to fund wars ( civil war ). For most of american history, we didn't pay income tax.
> They use bribes to avoid getting fines.

Yup. That's where corruption actually starts in India.
Don't Screw Up – A VAXCluster Tale
What is Wallet as a Service and how’s it different from Blockchain as a Service?
The cost of mining only adjusts after a set number of blocks. It's possible for there to be a sudden drop in price, meaning the majority of miners shut down unprofitable rigs, and then it takes essentially infinite time to mine the required N blocks to adjust the difficulty.
My issue with that was parsing your sentence structure ;o)

Isn't English so deliciously versatile.

Paraphrase: Faces aren't entirely unique. So, you could identify unrelated people as one person.
The Centrifuge Problem – Numberphile
The smartphone parallel is what I was thinking of. More particularly the transition from dumb phone, to smart phone, Tha basically destroyed most of the incumbents.

I take it you're saying Tesla is Apple.
Perhaps, you don't have the network effects and lock in with cars, that you do with phones, and Tesla don't seem to make 'the best' hardware like Apple do, but I don't have a crystal ball either, so I won't argue.
The Pseudo-Time Arrow
I haven't bought bitcoin since it was sitting at $8 a coin... but hey, Buy when there's blood on the streets. I don't think bitcoin is nearly as important as many of people who invest in it believe. But it does seem to be a thing that will be around for a while. I view it as digital gold, and not necessarily a currency. Unless you're buying during one of the large speculative bubbles (which come every few years) it's not a TERRIBLE store of value... though it wouldn't be my first choice, it is an option. I think it has some more life in it.
> There is an income tax but there is no income tax return.

The "tax return" is the form you fill out that computes your taxes. The "tax refund" is the money you get back if you had overpayed. Do you really mean there's no tax return? If so, how is that calculated and how is the money taken? In the US something like 80% of tax returns could be calculated by the government on behalf of the tax payer, but for whatever reason that hasn't been implemented. Is it something like that?
People said the same thing in 2014
The way the bitcoin protocol is designed, the mining difficulty and rewards only adjust after N blocks have been mined. It doesn't respond in real time to the hash rate on the network.
And older pics are typically very grainy and blurry in general due to bad optics.
Clearly you have not seen Azure's UI.
This is a major accomplishment and shocked not getting more press.
True, but I think this time around, people are realizing that no one is actually using for purposes other than speculation.
I've noticed that Mac OS 9 along with some of the other OSs/platforms that disappeared into obolescence have one thing in common: a filesystem that has a more fancy abstraction that just "stream of bytes". The resource fork/data fork system of classic Mac OS is an extra hurdle to sharing files with other systems which don't have such distinctions. It was technically superior in some ways, but also restrictive in others (one of my first experiences with it was "what do you mean I can't open any file in the text editor to see the bytes?") and I suspect the latter may have contributed to its demise, because the opaqueness was not conducive to creating a culture of power users and "semi-developers" unlike the PCs of the time. Early Macs were an even more isolated ecosystem than the ones today.
Ha, right
Glad to hear that :)
that sounds like me. I love developing tho, but other aspects of work interest me aswell (qa, devops, leading the team, communicating with a customer etc...) I am slowly growing in the company where I work to cover some of the roles listed. But how do you go on to become freelance interim CTO ? (as in chief technology officer)?
If you believe that coding challenges lead to a more accurate assessment of the candidates, then it would make sense.
But does it restrict your ability to also save those passwords into an external password manager?

Per my previous, Safari has a similar feature, which streamlines the process of generating secure passwords without needing to switch to the password manager to generate the password, and upon submission, it gets stored in the keychain, and also pops up the ability to store into 1Password via the usual extension.

Sure, all those passwords in the keychain are locked to Safari only, so Chrome, Firefox, etc are unable to access them, but that's what external password managers are for.
I may still have some bitcoin, but I certainly hope it becomes worthless. It's turned out to be ridiculously energy-consuming, and it seems to be used mostly for speculation rather than payment. Transactions have become too slow and expensive to be efficient for a payment system.

It's entirely possible that cryptocurrencies will be the future, but it won't be bitcoin. It needs to be more efficient and more scalable than that.
Code Coverage the Metric That Makes Your Tests Worse
This is why I don't like the hooks concept introduced in the post. It breaks these semantics.
Running an Email Server
An interview is designed to answer three questions.

1) can you write software?

2) can we tolerate writing software with you?

3) can you tolerate writing our software?
Because the adjustment window is not real-time-based, but block-based: every 2016 blocks, an adjustment is done - with the obvious caveat being that the duration it takes to mine 2016 blocks is based on the global hash rate. Also, the downward adjustment is limited to (IIRC) halving the difficulty at max.

So, given the number of miners drops too far too fast, Bitcoin may end up in a situation in which the global mining power is too low to even reach the end of the adjustment window in a realistic timeframe, which in turn triggers even more miners to shut off their equipment and sell their coins, which lowers the price even more and lengthens the timeframe, which in turn...and so on. This situation is known in Bitcoin circles as the "chain death spiral", and it has been a purely theoretical thing - until now, at least.
You're implicitly assuming that bitcoin will retain value. If the value of bitcoin halves every 6 months and the cost of mining halves every 7 months, bitcoin will never* be worth mining again.

* Of course it wouldn't be a smooth decline so there may be short periods where it occasionally becomes viable.
I'm not really "in the field" but I did some computational work on protein folding in the past.

I have a hunch on how they are doing this.

From the blog post it appears that the network is using angles and distances of aminoacids in a given sequence in know structures to predict good starting point(s) for regular molecular dynamics-based structural optimization (what is called the "gradient descent step" in the post).

If I'm wrong then I'll just have to try this approach myself one day...
Resisting Reduction : Designing our Complex Future with Machines
Buy signal
Crabs and lobsters don't use external digestion but eat their food not terribly different from what we do. So it looks like spiders evolved their system later.
This is probably be the next step in human societies, small scale (both for ~production rate and size of ~tooling) natural hacking. This would avoid large chemicals shops that may or may not process waste properly and also bring back people into a closer relationship to ~nature in a way, hopefully saving energy on the way. You can't brand and market proteins much.
The name of the company is Alphabet. Of course the prefix Alpha is a branding label.
Kubernetes in production vs. Kubernetes in development: 4 myths
Of course they do. Do you think everyone who plays sport believes that their sport can somehow transform the world? Do you seriously think every bassoon player and salsa dancer believes they're going to change history?
Three Common Misconceptions about Synthetic and Anonymised Data
Which won't happen since the 'cost' of mining is electricity and hardware costs which for some miners is probably very close to zero. All this is going to do is shuffle out the miners who have no efficiency.
Data Belonging to 82M US Users Exposed on #Elasticsearch Instances