skysight-inc/HackerNews huggingface dataset:
TLDR:

- Volatility refers to the amount of uncertainty related to the size of changes in price

- Volatility is often associated with risk: the higher the volatility, the riskier the asset

- The higher the volatility the harder emotionally it is to not worry

What is volatility? How is it computed?
-> Real life examples

Volatility is a key factor to take into account when building a portfolio in order to qualify if an asset is more or less risky.
Volatility appears in Modern Portfolio Theory and has gained a wide acceptance across the financial industry.

What is volatility?

Volatility refers to the amount of uncertainty related to the size of changes in price.
It is the degree of variation of a trading price series over time, in particular an asset is called volatile when there are big swings in price in either directions.

Volatility is relevant because:

The wider the swings in an investment's price, the harder emotionally it is to not worry
It can define position sizing in a portfolio
Price volatility presents opportunities to buy assets cheaply and sell when overpriced

Mathematical Definition

The volatility is just the standard deviation of the returns.
The standard deviation is a measure of the amount of variation of a quantity, the returns. It reflects the average amount a stock's price has differed from the mean over a period of time.
Volatility is without a unit and is expressed as a percentage. While variance captures the dispersion of returns around the mean of an asset in general, volatility is a measure of that variance bounded by a specific period of time.
We can report daily volatility, weekly, monthly, or annualized volatility

For practical examples see plots and figures in the full article
May 2015 we moved in.

I've no idea what the engagement was like, but it was Redrow so I doubt they just slapped the 50 or so houses up and then thought about it.
Well even "real charity", including very famous ones, are quite shady too: volunteers do work for free while donations goes towards C-exec 5-6 digits salaries.
Is expensive if you need to buy it and have one or two palms, not so if you can just phone and hire a man with a robot a few times a year. Professional coconut harvesters would be either moved off the path, or could invest into buying a robot and be able to reduce their risk and work also with a broken arm or having a mild disease. It depends on robot price. If a coconut harvester is getting old, I can see how their digitally native sons or grandsons would want to buy one for easing his life.

The biggest problem is that 15 minutes to mount the robot (and a similar time to disassemble it again, probably), is probably more time that an experienced harvested would need to climb and take the fruit down.
This was probably just a pensioner with a 30 year old tv. Doubt gamers are getting up at 7am to play :)
They do mostly. They also like to remind you of their intend with batons and knifes on their belt. Violence is implied, not enacted. They stay within the confines of the law.
This attitude almost always turns into the following:

On-call: "Hey devs, I'm being woken up at 3AM because your app sucks. Please fix it."
Devs: "Sure, no problem."

4 months go by

On-call: "These alerts are still coming in at 3AM. Did you fix the issue?"
Dev: "We have a lot of work, we can't dedicate all our time to some minor problems, we have a deadline."

Next week, Devs are put on-call.

The alerts are fixed in two weeks. Site reliability goes up. Apps suddenly become more resilient to failure.

Honestly, the whole attitude of not wanting to work more than 8 hours is privilege. Most of the rest of the world works long hours. As a dev, you get a good salary and a job you don't have to break your body to do. The least you can do is be completely responsible for your own code.

And it helps you as an engineer. Like the article points out, it creates empathy for the users and product support engineers, it helps you improve architecture and app design, and it helps you understand different failure domains. You won't learn all that on your own time, especially without the scale of production.
We sell gear to find these kinds of issues. The best story so far, was a little old lady with an ancient table-side lamp, which had a faulty connection, which would sometimes arc, with just the right shape of wire attached to it to broadcast noise all over the GSM bands.

Now GSM is (from the perspective of the phone's broadcasts), pretty weak, so that enough to periodically wipe out cell service for a couple of neighbourhood blocks.
They're called consultants
I put my printer up on a previous website like yours. That website based their price on weight and print time. The result was that I got a lot of orders for tiny items and never any orders for large runs. The setup and packing time time plus packing materials for a small order is just as long as for a large job so I was not making any money and it was just a huge pain dealing with these tiny fragile parts.

Can you please clarify how you are going to handle pricing? My preference would be to let suppliers bid.
I use vscode daily and recommended it, but to be fair, it's heavily optimized for typescript. The feature may be not available for other language such as java.
ok, i see what you mean. though vp9 usually gets me 1/4 or 1/5 of h264 video so i thought it was worth to save the network traffic(even av1 got me larger file at incredibly slow speed) but as you directly pointed out, without direct support on the hardware, like h264 has these days, it will become a bottleneck so i would have to sacrifice traffic for speed and practicality and i guess vp9/av1 makes sense for youtube, bitchute or simply video HOSTING service, not for lvie streaming. thanks for lighting the bulb above my head :D
>This library is mainly developed in C++ and CUDA (with some C# tools)

This is built in top of CUDA. It's a library with built-in algorithms and components, that seems to aim to ease the pain of writing CUDA apps.

The problem is that the project does little to nothing to explain the features (besides listing them), and why is this any better than other tools on the market.
Excellent article!

Never played the original X-COM and plan to do so soon.

I played the third one, Apocalypse, obsessively and beat it in a couple of weeks one summer. It seems that I end up loving most any game that has a rotating Earth in the interface (the latest being Microsoft Flight Simulator).

Strongest memories is the panic when seeing a headhugger appear close by, getting attached to the individual commandos, and enjoying the destructability of the multi-floor building environments using the various weapons.
The true answer is buried about half way down the page. The fallocate command / syscall nowadays allows you to remove or insert block-aligned extents at the beginning of a file, assuming you're using a modern filesystem like ext4 or xfs. The only difficulty that remains is working out how many blocks to remove and dealing with the non-aligned part. LWN has a few articles on this topic: https://lwn.net/Articles/589260/ https://lwn.net/Articles/629965/
When I was working at Boeing, my boss who was around during those times gave this anecdote.

Apparently in return for being allowed to build the 777, the city of Everett (maybe it was Renton or the state of Washington) demanded large amounts of public works/benefits. Boeing was not pleased with this but in order to make the 777 happen they did all the stuff required. However, they vowed to never have to deal with such nonsense again. To make that happen, they moved their HQ (it was eventually decided to be Chicago) and began to consider relocating their plants to another state. Eventually, that became South Carolina. Or so the anecdote goes.

I don't think my boss was very high up back then, so I can't speak to how factual it is, but it sounds plausible.
Do you know more? I am assuming the IDE has only one AST and uses custom tools and not running 10 different tools in background but my assumption could be wrong.
RE RTL dongle.. Or tune your AM radio to ~612kHz to listen to the REIN
Really? I can hardly tell the difference in gameplay elements, so I thought them to be the same.
Every time you comment code – you’ve already failed
This was REIN not RAIN, also common enough
Maybe it would make sense to support more than just 3D printing? How about CNC machining? It's even less accessible than 3D printing.
isn't vice headed by an alt right guy?
Hey, it puts food on the table, and my kids are hungry. And it keeps the debt collector at bay.

The implied expectation of class / race / ethnic / ... loyalty is fundamentally flawed, though. I'm friends with people of many groups who are unlike me, and conversely, there are many people in my demographic whom I dislike. Not all [insert race][insert socioeconomic class][insert religion][insert ethnicity][insert career] people are the same, and we don't want segregation.

This is a particularly nasty cross-class alliance, but at the core, we WANT cross-class alliances.
Thanks. Longtime user of VirtualBox which has the advantage of being easier to set up. Nor have I ever found VB's performance to be noticeably lacking, but it does seem plagued with bugs that never get fixed. And I've been exposed to QEMU through the Android Device Emulator in Android Studio. So I was wondering whether it's worth moving all my VB machines over to QEMU too.

I've always been put off by the fact QEMU needs configuring via commandline to set up. But if it was worth the effort, I'd make the jump.
Leading to the ironic scenario where your final gig is to evict yourself.
I'm with Up and they're the best bank I've ever been with.

They pump out features fast and often.
Their API is the first I've seen in Aus.
Their app is really nice to use and extremely useable.

Possibly my favourite app!
Honestly, I was just looking to learn Rust and this seemed like a reasonable project for it. It's small enough that I could conceivably rewrite it in a couple of months and the stakes were low if it didn't work out.

Mostly, I'm just sticking with the Rust implementation now because it has a couple of new features that I wanted. Also, it should theoretically (I have not tested) be able to run on other OSes, since it is built around JACK instead of ALSA.
I hated NV. It added complexity in crafting without joy for me.
This is true, but it demonstrates that VSCode extension model supports this, and nothing stops extension developers from attaining the same level in any other language. Hence my point about IDE/editor distinction.
The fringes of this material gets wild and significantly less credible really fast. It is very important to stick to the hard facts when dealing with government wrongdoing or you open yourself up to the “conspiracy theory” thought stopper charge.

Wild conspiracy theories help cover up actual conspiracy and malfeasance.

The stuff you are referencing is definitely not impossible, but it’s unproven and likely unprovable and is mixed in with a lot of trash. We have enough documented stuff about the government meddling with the counterculture (e.g. COINTELPRO) that we don’t need to make shit up or chase phantoms.
Perhaps staff crossed over between the two companies?
I see a lot of comments deconstructing Troy's arguments, all I can say is that obviously a VPN is not a magic bullet, we can debate that until the cows come home, but if you can afford to get a pay to play VPN like NordVPn, it is safer to buy one, than to not have one at all.
I think you misinterpreted the use of "endophasic activity" here, it just means that the speech is not real, that it is inner, or the brain not producing any real efferent output, just internal-bounded output.

So, the study considers what happens when using linguistic thought without uttering words (aka inner speech), but it does not investigate the properties of the mind of people who do not experience inner speech.

For the second quote, it is maybe closer to the subject I raised, but there can be an homologous of "inner speech" for mute or deaf people (e.g. visualizing linguistic cues), so there is still the possibility of a category of people with and another without these cues.

Afaik, all these questions have been ignored by the study.

Not that it's bad, I mean, they have to restrict to some narrower question at first if they want to publish without spending decades on it.
I guess that's a way to ensure you're among the first up against the wall.
[Sorry, I decided to not get involved in this discussion]
I'm not sure why you'd assume they're operating legally. Violating the law was the USP for Uber, Airbnb and various other valley startups. It's a proven model.
cloudcraft.io is OK
Tesla: 2020 Annual Meeting of Stockholders and Battery Day
The dd approach is interesting. Editing a file like that in place cowboy style with dd would fill me with anxiety however
When I was a landlord, rule 101 is that you don’t go near the tenant while the eviction process was winding its way through court. Also, police are monitoring the process on the day of the conviction.

Edit: Does someone care to share how the above statement is factually incorrect?
Hyphenated domain names are awful.
I'm sure you could get the linting tool to run only on changed files (we have a pre-commit git hook that does this at work, although we have CI set up to run against the whole codebase). To be honest though, I think the best approach would to pick a few of the rules you consider to be the most important and just be suck it up and spend a couple of days fixing all the errors. It likely wouldn't take you long to make that time back.
>because enterprises run huge and old systems performing critical functions, these systems get modified around the edges (small extensions, bugfixes, performance tuning), not completely re-written.

Not every enterprise runs a single huge monolithic app or codebase.
Was I the only one to ever hit that bug where on some missions you randomly found so much Elerium-115 so that you no longer had to worry about depleting it as a resource? That made the game suddenly lot easier to finish.

Also, disagree that the "Terror from the Deep" was poor. It was more of the good stuff and much much harder.
Since everyone is venting about Teams, my experience of it is pretty disappointing as well:

- You can't see participants' email addresses. So if you have a bunch of third party people, you just see "outside of your organisation" next to their names, but you don't know which organisation.

- There's a whiteboard function. It's off by default. Virtually impossible to enable and use if conferencing with a third party org. Everyone just screen-shares MS Paint instead.

- You can't launch two instances of Teams for two orgs. Some people are consultants and need to log on to multiple accounts! Not everyone has "my org". I've got accounts with something like five or six at any one time.

- Speaking of which, logging off and logging on takes a solid minute on a very high end machine. Someone explain to me what Teams needs 60+ seconds of CPU time for just to log in. Is it mining BitCoins to pay for my access or something?

- Sometimes I might be presenting to 10+ executives from third-party orgs, which is a stressful experience at the best of times. That's exactly when Teams decides is the best time to pop up a logon prompt. In the middle of my sentence. A fat white dialog box: unclosable, uncancellable, and slow as molasses. "AUTHENTICATE NOW PEASANT, YOU ARE UNAUTHORISED TO CONTINUE SPEAKING WITHOUT A VALID MICROSOFT ACCOUNT."
Bingo! There's nothing more motivating to "prioritize" fixing a problem than being woken up at 2 a.m. being affected by it. I've worked in places where one team writes the code and another team supports it and it's always the same: the code is absolute garbage. It ends up being too complex and having way too many moving parts, and is impossible to diagnose. I've worked in places where the team who writes it, supports it - 24x7. Their code is always super simple, easy to diagnose, and easy to maintain.

I've been at this for 35 years at many companies and working with many teams and it's always the same: if you want good software then make the team creating it also support it. In every case I've experienced it leads to software requiring little to no support, easy to maintain, and easy to extend. Why? Because nobody wants to get up in the middle of the night or work weekends and moreover, they'd rather be adding features than limping along with existing features.
I can painfully confirm that data quality issue to be true, any sensor outside the body trying to measure the inside there's always a challenge.
What? Has Been is 1. Great and 2. definitely not in the style of his rocketman cover

After the success of Has Been, he did go back to the corny covers style of making music though

There's literally only one cover song on Has Been, so it seems really weird to put the album in the same category
No, Java 8 is not EOL. For example Azul will provide updates for Java 8 until Dec, 2030.
or one could spin this as they help prevent ms13 gang members from sneaking into the country under pretext of some kids they grabbed, and will probably traffick
I can certainly see someone being radicalized to the point of delusional psychosis by being victimized in this way.
Really cool, always enjoyed traditional Japanese art :)
Show HN: Check web API compatibility without leaving browser tab
YouTube actively blocks picture-in-picture on iOS 14
This is cool and potentially useful. I can imagine turning caps lock into Compose.

I will note two alternatives, depending on what you're trying to do:

* System Preferences > Keyboard > Text lets you specify replacements. For example, if I type ! ? (without the space) I get ‽, because who doesn't want an interrobang?

* https://matthewpalmer.net/rocket/ Rocket lets you add emoji anywhere using a syntax like Slack's
You have to schedule an eviction with the sheriff’s department. The police are there during the process. To get to the landlord, you have to go through the police first.
I have a television that's about 20 years old with a built in timer to turn it on. I used it as an alarm clock back in school because I wanted to watch the news every morning anyway and it was much harder to "snooze" than a normal alarm clock.
Depends on the workflow, it is more tailored to Web APIs and headless/CLI coding, as it doesn't support graphical tooling.
Coda: Learning from Structures Around Us (2018)
It should be the new slogan for Python 2.7
> It's not Jetbrains' responsibility to resolve these geopolitical tensions

It's everyone's responsibility to stand up against tyranny, for ethics. Saying it's not your problem because you'd lose money if you did the ethical thing doesn't absolve you- it makes you just as bad.

I'm reminded of the small and rather racist town I grew up in. I heard someone say once "I have no problem with <race>, but I couldn't possibly hire one of them because too many of my customers would get upset". They weren't racist, but they'd cater to racists because it was financially better for them. Oh, I'll do the right thing, unless it costs me a penny.
It was founded only I think, but there was some beef with the other founder and he was bought out.
As a daily typescript developer coming from C#, I don't think TS will replace Java / C# even with it's typing system. For daily CRUD simple system, sure. For more complex operation I still vouch for C#.

I don't know why, just feel like that, maybe stricter typing system and more verbose language is giving me more confidence.
BDD is just TDD but from business acceptance criteria language. To say TDD doesn't work but BDD does is ridiculous. People have been using TDD like BDD before it was called BDD. Hint: TDD and BDD are acutally the same thing but BDD is focused on collabration with the business when writing the tests. BDD extensions to TDD comes to shine when non-technical people are involved in writing and reading the tests. It's bit pointless when only devs read them. But devs have always taken requirements turned them into tests before implementation and implemented them. If TDD doesnt work then you also saying the core of BDD doesn't work. Unless you can get business on board with BDD you might as well just do TDD. TDD just means tests drive the development.

This guy just seems to be bad at writing unit tests, and his explanation of unit tests is just wrong as well.
New York could make it easier by getting rid of all the stupid and petty reopening rules.

Want to have a heater on your patio now that it’s cooling down? Apply for a permit, please.

Want to sell alcohol? A drink order must contain a food order, but only for the first order. Tough shit if you’re a bar.

Want to order some cocktails to walk back home? Go fuck yourself.

Rather than doing anything to help businesses, Mayor de Blasio seems intent on ruining the local economy with idiotic and petty restrictions. It is no wonder that things aren’t rebounding in NYC. They won’t let people live their lives and won’t let businesses make money.
It was...but they parted ways several years ago.
"Or unless you're just trying to crowbar in a signal of your virtue?"

What is the point of saying this?

White supremacists are bad, why do you take issue with someone saying that?
Police officers have pretty much the strongest unions out there and the junior folks on the force (i.e. exactly the kind of people who get put on call in tech) generally wind up stacking absurd combinations of shifts in order to be paid competitively. Rail workers, another strongly unionized profession, have it no better.

I get that you like unions but just because you have a hammer doesn't make every problem a nail.
But so often it happens that the working class and the owning class ally to reduce the power of the working class. They rarely seem to ally against members of the owning class.
I just watched the conference it is alluded to in paragraphs 4-6. Well, that does not look to me like 'recruiting'... (particularly not 'hackers', when he insists that hacking expertise is not really relevant) I also see that the documents in the "most wanted list" are documents that any investigative journalists would be interested in obtaining - i.e., the list is to trivial to be novel or original. I would say that Trump has uttered many more statements that could in the same vein be seen as "Conspiracy" and emboldening others to conspire.

Also, when reading paragraphs 19-22, it really looks to me that the supposedly criminal acts performed by Assange (attempted cracking of a password hash) was to protect the anonymity of the source - and that impression comes from the text of the indictment itself "Such a
measure would have made it more difficult for investigators to identify Manning as the source of
unauthorized disclosures of classified information."

There is a comical piece within the indictment that HN readers will enjoy:

"Manning did not have-administrative-level privileges, and used special software, namely a Linux operating
system, to access the computer file"
From what I understand of the Rust implementation of Noisefunge, it has a MIDI engine but no audio synthesis. It appears synthesizers and effects are external.

https://github.com/revnull/noisefunge.rs/blob/master/src/fun...
The police aren’t “involved” they are present. The police aren’t actually doing the manual labor.
Pointless bullshit that adds no information to the topic while ignoring some that is already there (note the "about 3 months ago" and try to think of what was happening in various fields of work at that time).
I'm still mad about Inbox. I moved over to it from Gmail because they said that it was going to be the future of Gmail when it launched. Instead, they abandoned it.
How We Built a Real-Time Privacy Inspector
enter devops