skysight-inc/HackerNews huggingface dataset:
From Investopedia [1]

> Swing trading attempts to capture gains in a stock (or any financial instrument) within an overnight hold to several weeks. Swing traders use technical analysis to look for stocks with short-term price momentum. These traders may utilize the fundamental or intrinsic value of stocks in addition to analyzing the price trends and patterns.

> ...

> Day Trading vs. Swing Trading

> The distinction between swing trading and day trading is the holding position time. Swing trading involves at least an overnight hold, whereas day trading closes out positions before the market close. Day trading positions are segmented to a single day only. Swing trading involves holding for several days to weeks. By holding overnight, the swing trader incurs the unpredictability of overnight risk resulting in gaps up or down against the position. By undertaking the overnight risk, swing trades are usually done with a smaller position size compared to day trading, which utilizes larger position sizes usually involving leverage through day trading margin. Swing trading can utilize the overnight margin of 50% if the account meets the pattern day trading (PDT) rule of maintaining at least $25,000 in account equity. Swing trading on margin can be extra risky in the event a margin call triggers.

> A swing trader tends to look for multi-day chart patterns. Some of the more common patterns involve moving average crossovers, cup-and-handle patterns, head and shoulders patterns, flags, and triangles. Key reversal candlesticks, such as hammers for reversal bottoms and shooting stars for reversal price tops, are commonly used in addition to other indicators to devise a solid trading game plan. Stop-losses tend to also be wider when swing trading to match the proportionate profit target.

For anybody who wants to take a stab at something like this to see how easy it is to lose some cash, Investopedia has a fun simulator [2]. You start with $100k and can do traditional investing or shorts.

---

[1] https://www.investopedia.com/terms/s/swingtrading.asp

[2] https://www.investopedia.com/simulator/home.aspx
Can’t we make some sort of waxy nanostructure material in the form of a cigarette that burns with zero particulates? Won’t help the issue directly but will help smokers.

Here’s an idea - since all vapes except home made devices are electronic, put a Bluetooth chip that requires a phone app that securely identifies the age of the vaper. Make it mandatory for all vaping devices and boom - massive cut in underage vaping.
I'm a little bit different - I don't want to prepare for death. I want to die at my desk, completely unconscious of, unready for and ultimately, unburdened by my own mortality. There's nothing you can do about it anyways, and waiting to die is boring and miserable. I don't want to give death any respect, I want to be inconvenienced by it, interrupted by it.
New Chainalysis Report Reveals Crypto Darknet Transactions Doubled in 2018
>but they can be very compelling even as they lack the rigor of a true science

That's really the heart of the problem. As any good salesman knows, there are many ways to convince someone that don't involve demonstrating your case, and many of them appear rational. This "scientific rigor" thing isn't just a cultural gatekeeping mechanism, it was built up over a centuries-long slow realization that the natural emotion of being convinced has to do with the truth in only the rarest of cases. The feeling that you're learning something is seriously intoxicating, and it turns out that it is just as prone to leading you astray as any other feeling. Geopolitical theory is always compelling; and it's just as compelling on every side of every argument, to the point where it's clear that it won't actually help you determine which side is right. That's because, along with a few other fields that I won't drag in to this, it is essentially the crystalized art of activating the human feeling of being compelled.
RocksDB and LevelDB use a "log-structured merge tree" so you might want to use that as a search term. There is a section "Papers" at the bottom of the web page at http://leveldb.org/ .

LMDB uses a B-tree variant, according to Wikipedia. Maybe it's a B+ tree as Wikipedia says, but keep your thinking cap on -- it's probably not in exactly the form you see described on Wikipedia.

If you want to see a toy LSM-tree implementation, I have one at https://github.com/srh/nihdb -- it was written as a starter Rust project, not as a fast LSM-tree engine. It's almost the simplest plausible LSM-tree. But you'll miss out on design considerations relating to concurrency and performance.
The origin of the name 'freno' is discussed in the README: https://github.com/github/freno#whats-in-a-name

What's in a name?
"Freno" is Spanish for "brake", as in car brake.
Basically we just wanted to call it "throttler" or
"throttled" but both these names are in use by multiple
other repositories and we went looking for something else.
When we looked up the word "freno" in a dictionary, we
found the following sentence:

Echa el freno, magdaleno!

This reminded us of the 80's and that was it.
In this case they would just be playing individual notes and scales, so would it be as important?
Why most redesigns fail
I really enjoyed reading this article. Some things I agree with: learning is imperative for success in your life. I wouldn't necessarily suggest learning only that which benefits the workplace, though. I have always valued learning, and strive to learn something new every day. In the field of computer science, I do believe it is important to at least keep up to date on new trends and proven methods. Things change, and better techniques are created and discovered. If you could improve your work ethic, why wouldn't you choose to do so? Anyways, thanks for sharing!
Agreed, a lot of pieces that talk about "induced traffic" throw claims out like "look, we closed this road and ppl dealt with it... no problem, let's close more". Yes lets.. Reductio ad absurdum .. let's close 50% of the roads b/c apparently people will just "adapt" and we could save a ton of money :)

The reality is people get some marginal benefit from each extra trip the road system allows. People do tend to apparently undervalue their time though.. so there's some point where building more road capacity doesn't make real economic sense. But I don't think we are anywhere close to that point in Seattle...
Ironically those were Mozart's last words.
I think comment quality doesn't just depends on users but type of content that gets exposure too. I have always found that to understand most of submissions on hacker news you've to have some level of understanding and knowledge in technical fields. Same goes for comments. So hacker news will probably never become reddit and memey as long as we have great submissions and vigilant moderators.
Just as a counterpoint, I had the exact opposite problem on my laser cutter. Inkscape SVGs were always the wrong size, while Illustrator ones were perfect. It ended up being a difference in the assumed resolution of SVGs in the control board firmware. Also, if you forget to save from Inkscape as a vanilla SVG, you end up with inkscape-specific tags that cause laser software to freak out.
It's bullshit. There's no reliable way to time the market. Horoscopes would be just as accurate as predicting recessions as pseudo-intellectual articles like this.
Facebook to launch new App for teen memes
When you first start out in math you won't even know the basics like e.g. "proof by contrapositive" but a basic "proof course" perhaps accompanied by "Linear Algebra by Hoffman and Kunze" will get you pretty far.

You can never ever ever ever learn too much linear algebra. It is pivotal in the development of e.g. "field extensions" and "differential geometry" to name two random items.

That said, partway through Hoffman you should start an algebra book like Dummit and Foote so you can see groups and rings.

*After you know how to prove things you could read an analysis text instead of Linear Algebra

Lastly, any serious math requires some topology, but it's less about what a topology is and more about knowing how to quickly apply the basics so certain statements are easy to state/prove/think about
I haven’t heard of a new app product since Messenger was spun off. Seems like big news, even though it seems that many hate Facebook
What an incredible display of navel gazing (the paper you link). I'm well aware that modern science was born from philosophy, but much of what is left in the realm of philosophy seems to me so incredibly useless.

Logic, reason, critical thinking, ethics, these are all valuable things. But anti-realism? I challenge anyone to tell me something useful that has come from the study of "anti-realism".

Not that everything has to be useful. Far be it from me to try to control anyone's hobby. But I, for one, don't want any of my tax dollars to go toward supporting that fruitless pasttime.
By suspicious do you mean, identity fraud related issue or your social credit score was not high enough?
> I don't quite follow your analogy. I think everyone understands that the more you drive a car, the more fuel it consumes, and this being analogous to biological functions.

The point of my analogy isn't that I was crying out for a slightly better car analogy. My point is this: if there's a problem with someone operating a system, it's usually unhelpful to model the system as a black box that happens to follow some universal physical law. It's not necessarily useless to do that, but it's unlikely to capture the aspects of the system that people directly experience and care about.

> Obesity doesn't necessitate food addiction, it could be as simple as neglecting to be physically active or other poor lifestyle choices.

Nobody in this thread claimed (or even suggested, by my reading) that food addiction was necessary for obesity. The description of "poor lifestyle choices" elides any serious analysis of specifically which behavior patterns are involved and what factors drive them. This is especially true when obesity is increasing across large populations. I don't think it's remotely sufficient to suppose that the behavior of hundreds of millions of people changed in similar ways in the span of ~50 years simply because they all spontaneously made unrelated individual decisions to have different preferences. I doubt that you believe this either, so I don't understand why you've arrived at this description as though it's an alternative to addiction and not just a larger category or higher level of abstraction that includes it.

> Any individual can take measures to improve their lifestyle habits and lose weight - how is this not of "interest"?

Of course such measures would be of interest; my objection to your previous post is, in some sense, that it failed to describe any.
I will be dissapointed if I don't get some sort of salty superpowers then.
The median adult has much less free time than the mean. A parent with a full-time job has even less.
Seeing Q2 bring back all sorts of memories. That was right about the time for me when I started seeing the benefits of dedicated graphics cards, and Q2 felt magical with one.
Sometimes yes, sometimes no. Of course I can go into much more depth in my studies / research while not working. I work the minimum amount necessary to pay my living expenses so I can devote a maximum amount of time to freely pursuing other interests, which includes pure math among other things.

There are plenty of people who devote several years of their life to studying, and must pay not only their living expenses but tuition fees as well. In my opinion, those are the people who you should be asking “how did you manage this”.
This is way bigger than sugar or even one segment of research.

In one sense maybe but it's hard for any one other factor to be larger than sugar in contributing to the decline of American (and world-wide) health.
How One Decides If a Personal Web Project Is Crazy and Not Worthwhile?
Cars are also major contributors to climate change and air pollution in cities, unlike schools. More cars also lead to more sprawl which leads to higher demand for cars. It's a vicious circle.
Trend, swing, momentum trading, all generally mean the same thing. In theory, the idea is that you buy something underpriced/overpriced when your technical momentum indicators tell you that momentum is increasing/decreasing. Can be used in all time scales (daily, weekly, monthly)

I was really interested in finance, technical analysis (Alex Elder books), etc for a bit, but don't really have the capital to do anything, and is probably soothsayer type stuff anyway. Best real strategy is passive ETF vanguard type investments
>if drivers were paying their full costs via gas taxes and congestion charges

The entire economy benefits from roads. You can’t reduce your dependence on roads for your own personal travel needs and then claim some sort of moral high ground.
This is actually pretty nice. I was expecting a heavy bloated web app but its not. Good work.
Try and stop being an idiot. If you can.
$11 toothpaste: Immigrants pay big for basics at private ICE lock-ups
Finally, a GOOD post about the tech interview process:

- Upbeat and To the point
- Helpful relevant information
- Actionable advice with multiple references

Thank you Bay Area Belletrist!
> Privacy is literally life and death for people.

This is what loses most people, because they don't think it's a big deal if someone reads their Facebook messages.

Privacy is what prevents gay people from getting purged in Chechnya[1]. Privacy is what keeps political dissidents and religious minorities out of concentration camps[2]. Privacy is what keeps our spies from being executed.

And for those who scoff at the idea of a state-level actor coming after them: privacy is what prevents someone's abusive partner from murdering them when they choose to leave the relationship[3].

[1] https://www.npr.org/2019/01/14/685192372/https://www.npr.org...

[2] https://www.reuters.com/investigates/special-report/muslims-...

[3] https://www.theguardian.com/money/us-money-blog/2014/oct/20/...
You don't have to be some string algorithms weenie, but the kind of people who "absolutely hated" algorithms problems in my experience, some of it personal and some of it vicarious, are bad at making architectural decisions with far-reaching consequences. It's overlapping subject matter which uses the same kind of aptitude. It's not that to be good at architectural decision-making you need to be prepped for an emergency Google Code Jam.
Microsoft and Netscape (1995)
Lastly, the further you go the more you'll see that there are no islands in math. Everything uses everything else. (For example, you can go back and forth between groups and topological spaces via e.g. the fundamental group)
> There's 3-block section near me that Google says is orange-to-red on a typical weekday at 4-6pm, but I avoid it entirely because it literally takes 45 minutes to drive down those 3 blocks.

Howell St towards I-5? Basically impossible. Everyone zips down Boren from Capitol Hill and jumps in front of the line.
There seems to be theming and icon set support in 1.0, that should hopefully solve this issue.

http://wiki.inkscape.org/wiki/index.php/Release_notes/1.0#Us...
I am sorry, but I don't believe that they were able to hear a glass break outside of the building they were in, much less down the street or a few block away. This feels like lazy reporting or something. Am I crazy?
Original Six Frigates of the United States Navy
Amusingly, rescuing a Soil Stradivarius happens to be a side quest in Fallout 3.

http://fallout.wikia.com/wiki/Agatha%27s_Song
Why is anything being assumed. It's all determined by the viewbox.
The most surprising thing in this article was a line about a shop in San Francisco:

> he shuttered in 2015 after rent rose from $4,000 to $12,000 per month.

Rent tripling instantly seems like it should be illegal -- that's absolutely ridiculous.
The bankruptcy is related to CA law. In most states they wouldn't have been liable for damages for the fires. Ergo, no bk.

WSJ has really declined lately. [/Old man rant]
They are not so hard to maintain when everyone acts rationally. You don't need overt collusion as long as everyone acts in a consistent manner and doesn't try to compete.
They didn't let you "Google" it at Google? Something wrong there.
I'm really happy about the upcoming measurement tools.
One step further towards making Inkscape a viable CAD program.
Former IBM exec says company told her to hide layoff age data from government
There's a difference between chronically infected (which is true) and that the source of CF is an infection, which is the part of your theory that's unsupported.

"the way it works vaginally and in the lungs ought to be consistent." - not necessarily, and especially not when you're describing symptoms (vaginal dryness resulting in uncomfortable sex), because the mucous of your lungs and sexual lubrication serve very different purposes.

And other symptoms of CF in women, such as more difficulties conceiving, are consistent with mucus overproduction.

The discharge might not be mucus, but that doesn't mean that's not the root of what CF is doing.
> the acoustics of the auditorium, which was designed around the sound of the instruments, had to be studied, as well.

Seems like the room was made specifically for these instruments.
My experience buying off-brand Cheerios is that the texture is very different: much crunchier. They're one of the few products where I don't just buy the cheap store brand version.
Is this the Perdue that just recalled chicken for having wood in it?

https://www.foxnews.com/health/perdue-recalls-gluten-free-ch...
They say they're using ultra sensitive microphones, but it does seem sensationalized.
Found the story as written by SexyCyborg in the post very hard to follow, plus it felt a little too self serving to take 100% at face value.

I'll admit though, I saw her once on Hacker News the first time she went viral, later read that Reddit "expose" and then promptly never thought of her again. It took a while to walk back what I thought was happening so I could understand what was going on.

This video [1] helped me get the actual context of the article.

The West honestly doesn't come off well in this, but neither does China really. More of the same "are the people with power over others using it with decency and respect?"

[1] https://www.youtube.com/watch?v=Y0dkwwV_iaw
Check out mathvault.ca.
TablePlus. Amazing Postgres gui for those of us humble beings who haven’t mastered the art of psql yet.
This is reductionist experimentation that encourages the development of out-of-context remedies targeted to one risk factor or one causal event at a time, a recipe for failure.

I don't think you can compare fat and sugar. Sugar is a specific refined product. It's existed a rare thing for only a couple thousand years and one that's been common for at best a couple hundred years. The association of high sugar diets with diabetes is pretty strong, as an example of potential harm. The complete elimination of refined sugar from one's diet is fairly practical.

Fat, broadly has been part of the human diet since before the evolution of modern humans. It's something that can't really eliminated and certainly shouldn't be.

So, this "no reductionism" argument is fairly crude itself, reductionist-even, actually.
>> "What I do enjoy, however, is building up. I like modeling and being about to think at greater and greater levels of abstraction to solve problems that aren't puzzles, but instead open ended questions."

In my opinion, you will do well if you focus on building your own business sooner or later.
It's probably in top 100 American short stories.
https://en.wikipedia.org/wiki/Where_Are_You_Going,_Where_Hav...
I don't work in SV. I assume it's like everywhere else where a potential employee who feels their skills are weak will take credit for things done by their teammates even if they were only tangentially involved.

My above comment was strictly related to the idea that DHH shouldn't be considered for a job over anther candidate who is an unknown quantity simply because DHH apparently is not good at algorithm problems in interviews.
Gov’t Shutdown Freezes SEC Activity, Affecting ETF Date
The browser/os/hardware footprint plus the fact you’re using an VPN allows for your identification even with the private browsing on.
> he's not failing to understand privilege, he's rejecting it and thus doesn't like her pushing those politics on him.

If he understands it then why does he think it's "odd" for her to have a white male husband?

> So he doesn't want to hear her whining about how white men are to blame for bad things that happened to her because he probably doesn't like listening to racist drivel.

When you're talking about abusive behavior online, and you describe the individuals that leveled the most abusive behavior at you, that's not "whining" or "racist".

> What people call white privilege, generally isn't; usually it's just majority privilege which has nothing to do with whiteness and more importantly is not a bad thing at all.

I'm happy to call it "majority privilege" if you want. I'm not sure how you think it's not a bad thing for certain races to get treated better than others, though. (Different ones depending on what area you're in.)

> Yes, it was; you don't think it was because you don't accept your own beliefs as political beliefs but rather as reality.

What beliefs? "The story had to have some kind of genders for the characters"? "It's not a horrible choice to pick the most common genders involved in adult sexual abuse[0]"? "It's possible to design a character with non-political motives"?

[0] Honestly, I think any gender combo would have been fine here. Which ones would you find "non-political"? (Unless you think rape itself is political which would be weird.) And I know there are under-reporting issues for rape against males, that's why I used the term "sexual assault" to avoid miscategorization problems. It's an unfortunate fact that men commit more sexual assaults, and when they are not against children assaulters usually go for the gender they are attracted to. Here's some statistics: https://richardfelson.files.wordpress.com/2013/06/sex-assaul...
This is the saddest comment I've ever read on HN.
and that the source of CF is an infection, which is the part of your theory that's unsupported.

I don't think I've said that anywhere and that's not what I'm trying to say.

CF is a genetic disorder. It's root cause is a malfunctioning cell channel, the CFTR, that is defective due to a genetic defect.

But I do think a lot of what we think of as CF is really a consequence of being sick and malnourished your entire life. If those issues can be addressed, outcomes can change.
Does that mean you could run l4linux with sel4? Didn’t realize the l4 api is consistent/broad enough to do that. That’s cool! The linked “drops” rtos seemed to be dead a long time back.
that's even less likely than amazon
There is a scriptural basis for believing that the proposed Christian afterlife does not begin upon death, but after the second coming.
I think you’ve accurately described the vast, vast majority of production code that’s hasn’t been through a second wave of engineers/management and rewritten. If it works, and requirements aren’t changing, then your MVP has become the gold standard
Temple Near to Home, Effects as per Vastu Shastra – Vastu Tips for Temple
> Best real strategy is passive ETF vanguard type investments

There's a cyclical process. Passive has worked great relatively recently. It worked horribly in other market periods farther back. I doubt it will work well going forward from here. Passive only beats the market when it's unpopular. When you have enough people parroting that it's an obvious winner it stops working.

Real returns across the US equity market adjusted for taxes and fees have historically been about 2.5%. If "passive" is your thing you should just buy highly rated bonds and CDs.