skysight-inc/HackerNews huggingface dataset:
Before I respond to your comment, you should understand that the job that these people do is not just looking for bags. They help people get where they want to go. They help people with disabilities. They help people understand how the train schedule works. I've even seen them help passengers figure out alternative connections in the rare cases when their train is late. But a big part of their job is simply interfacing with people who have dropped something off the platform and are likely to do something stupid like try to get it back (losing their heads to a passing train in the process). They literally save lives.

Having said that, it's a job that requires a lot of interpersonal skills, but not a lot of mental ability. But if we want a "humanised" society, we have to realise that there are a lot of people who like that kind of job. It's not for me, but I know quite a few people who would be very unhappy doing something else.

I was watching a TV program the other day. There was a guy who started a very small company to make kompeito. It's basically just sugar, but it is tumbled in a certain fasion so that it is knobbly and doesn't melt easily. Anyway, this guy used to work in a normal company doing accounting or something like that (I can't remember). He gave it up to spend 8 hours a day drizzling sugar water on his candy and making sure that it is tumbling perfectly. He takes a 10 minute lunch break and then rushes back to work because he wants to make sure that the kompeito is perfect every time.

I could not do that job, but he loves it. Why is that bad? There are lots of people who want jobs where they can be helpful, but where there isn't a huge amount of stress every day. They don't want to work with their minds, they want to work with their body. Or they want to interact with people. This doesn't cheapen them. Why must we destroy these kinds of jobs?
Compliance with vulnerable software is much, much worse than non-compliance with safer software.
Buy and hold will work until it doesn't and a lot of people will be left holding the bag, especially if you need the money at the bottom for medical, retirement, etc...
Just check the Japan’s Nikkei stock index, almost 30 years later people are still waiting and are far far away from the top...
Is that weird?
Google's 'Project Moses' to Address Tech's Gender Imbalance
This is why many are worried about Level 3 autonomy vehicles -- that is, driver assist where the car can drive ~95% of the time, but the driver may need to intervene at any moment. So far all the studies I've seen indicate that the driver loses attentiveness whether they mean to or not, and the disengagement times are in multiple seconds.

Personally, I think a system needs to work well enough to drive itself the whole trip, or be dumb enough to act as cruise control with some crash prevention built in, but otherwise force the driver to be on task.
I am not surprised large corporations are lobbying to enforce strict copyright laws onto even more countries. The problem with trade with Mexico, though, is not the copyright laws, but the cheap labor. When Mexico's minimum wage is $0.48, there's no way American labor can compete. And once the jobs are shipped there, Mexico has no incentive to raise wages for Mexicans. In fact, they have an incentive to keep the people poor so they can keep getting foreign jobs.

What we need to do is to extend our labor and environmental protection laws to the countries we trade with. If we don't do that, then our labor will continue to be uncompetitive, people will be unable to unionize, middle class jobs will continue to disappear, and the capital owners will continue to be the only ones to benefit from globalization.
You're right, Buy and Hold is a terrible strategy. Look how poor Warren Buffet is as a result of holding. /sarcasm

Not having capital isn't the same as being unsophisticated. I could do all the right research on which stock I want to buy, but if I only have $100 to invest at the end of every month $10 fees would dig into my earnings very quickly.

Assuming that people without large amounts to invest are stupid says more about you than it does them.

EDIT: you also don't need to spend $100 for 20 years of stock data. Plenty of services, such as Quantiacs/Quantopian/QuantConnect allow you to test your strategy against historical data for free.
Ohh Kakunin! Brings me back!
Sounds more like a liability thing to me. "I've never actually done it wink wink"
I guess the reason why it seems confusing is because if you're prioritizing risk/reward tradeoffs and saying that spending the money for good data is worth it to you, why not license the data from a reputable source?

That said, I think I might not have conveyed my original question well enough - what I actually meant was 1) is the data accurate? (you sort of answered this by saying you compare it to presumably licensed sources) and 2) what actually led you to searching for financial data on ebay? (you didn't answer this, other than "it's cheap").

I'm basically wondering how you did the mental calculus that concluded ebay was a good place to check before you verified the data was alright.
If antimatter has an indistinguishable spectrum from regular matter, maybe there is more of it in the universe than we thought.
Why limit yourself to technical analysts only?

Use your imagination, with data like this you can test value investing, arbitrage, trend following...

For any type of investing test you'll need to know the price of the security on any given date in the last 20 years...
Speaking to your point, some speculation follows:

We'll start with the stereotype/assumption that many engineers prefer stability and consistency in many aspects of their environments.

April Fool's day upends consistency in a significant fraction of consistent events and assumptions. The corollary is that the only consistency introduced on this day alone is the inconsistencies introduced elsewhere, and even this isn't certain given that not everyone participates.

Therefore, if many engineers strongly prefer consistency and April Fool's Day disrupts consistency, it potentially stands to reason that many engineers do not prefer to be involved in/with April Fool's Day.

...I'm less of an engineer and more of a manager now, so I've come to appreciate the gags, but man was there a time when I didn't. lol
> A problem with this is that there will be a tendency for it to become normative.

Yes, true. It would turn description into prescription, but we're already approaching that point. I'm not advocating this, only mentioning it.

> This is what happened to the OED. Originally it was an etymological dictionary of the usage of English. Now it is regarded as an arbiter of 'correct' English.

I suspect those behind the OED would deny that as a goal, while acknowledging it as an outcome.

I have a little fun with people who think dictionaries prescribe correct usage, by pointing out that, according to current dictionaries, "literally" and "figuratively" mean the same thing. This is true because that's how people use the words, and a dictionary's purpose is to dispassionately record how people use words, without judgment or rancor.

This is why "reign it in" (now seen regularly) will become an accepted substitute for "rein it in" -- people want to say it that way, so be it. Reigning is what a monarch does to a kingdom, reining is what a cowboy does to a horse, but people are free to say what they want.
Alternatively, he did try it, and just doesn't want to admit it because there is no Xbox One bug hunting program so he could be charged under the existing computer hacking laws.
No.

The broker first contacts the investor to allow them to deposit more money to bring up their equity percentage; if thet doesn't work, they sell the borrowed assets to get the percentage up.

One feature of margin loans is that you are required to have assets to cover them. A relic of the great depression, IIRC.
I always recommend Kate to people who want a programmer's editor but don't want to deal with the esotericness of Vim.

(I personally alternate between both Kate and Vim, depending on whether I'm in more of a GUI or a CLI mood)
Google Secure Data Compression Proxy (possible simple privacy solution witho VPN)
- FLAVOR: Ubuntu Desktop

- HEADLINE: Disable the Launcher

- DESCRIPTION: Me and many other are not too happy with the launcher. It should be possible to disable the launcher (not just hide it with a forced "reveal location"). This option should be so easy to implement.

- ROLE/AFFILIATION: Web developer, photographer, tinkerer.
https://github.com/Kickball/awesome-selfhosted/blob/master/R...

Maybe there's something here...
Your manager is doing it wrong. A 20% project does not have to be related to your current job, and you shouldn't have to get manager approval - just let them know. They can request you bank your time for a while, but that's it.
Yeah, theme parks are where I've seen this too
At least we try.
I can't wait for next year, then.
I'm referring to the idea of a "small ISP upstart". A public utility approach is an entirely different thing with different problems. The physical infrastructure is still expensive.
Artificial gravity is easy to produce in space: just create a rotating frame of reference, such as a torus-shaped living quarters. Even if you set aside the other problems with very strong magnetic fields, generating one powerful enough to accelerate humans at roughly 9.8m/s is going to require a LOT of energy and some very bulky, finicky equipment (such as cooling for the superconductors). At that point why not just build a large motor and rotate the station?
I am reminded of this: https://www.youtube.com/watch?v=xSRaDHXydzU
That's not entirely fair. It is disingenuous to characterize Warren Buffett's methodology as "buy and hold." Berkshire Hathaway takes far more active participation in the companies it's long on than any individual retail investor could hope to imitate (or even fathom, logistically speaking). It's not just a matter of being long on a company and buying the stock - the amount of capital they invest provides Buffett et al with involvement and corporate direction that few other institutions can command, let alone individuals.

I agree with your point that buy and hold can be a valid strategy, I just don't think that example is fair and Buffett it basically a meme in these threads now.

I think you may have misinterpreted the OP's point about sophistication - I don't think he was trying to be condescending to those with comparatively little to trade with. His actual point is valid - if you are optimizing for commissions first and foremost, you're probably doing something wrong (as an active trader). Robinhood is a platform that, by design and mission, differentiates itself on the lack of commissions, not on superlative features or strategy availability. This means that if you choose Robinhood as your platform for trading (as opposed to, say, Interactive Brokers), you're likely optimizing on commission/fee avoidance, because that's all they're really got to offer that's unique.

Commission and fee avoidance is great, sure, but optimize for that within the context of a larger strategy. It's very important to reduce fees because it can make an otherwise unprofitable strategy profitable, I agree! But you should really start by getting to the actual strategy first, and Robinhood's business directive might encourage potential investors to prematurely optimize on fees, when that is honestly not the thing that typically prevents people from being successful in the market. The thing that typically prevents people from doing well is the lack of real alpha.

If you do have a viable trading strategy with a good Sharpe ratio, the commissions will not stop you from being successful. Conversely (as one example), if you are using the commission-free trading as a way to explore strategies that you think are viable, but which are actually just risk-overloaded returns attributable to chance in disguise, then yes the commissions will eat you alive - but that's because you don't really have a working strategy in place.
Yes. The other 3 groups were not AI researchers. And the TOP100 group had a response rate of 29%, which adds self-selection to the process. People who are interested in AI risk et al. are more likely to respond to such a survey, adding bias. Andrew Ng or Yann LeCun or anyone actually working in AI would have refused (and probably did refuse) the invitation. Also, this TOP100 group of people are also more likely to be GOFAI folks who pretty much have no idea about the current data-driven deep learning-based AI.

Even Stuart Russel, the only CS guy in the AI risk camp, doesn't actually believe that AGI is anywhere near. But he works on it simply because he thinks we can do solve some of the problems like learning from demonstrations instead of (possibly faulty) rewards. That's actually a core AI research topic, not a AI ethics/values/blahblah topic. Oh, and also because this allows him to have a differentiated research program, and thus directs any funding on this niche to him.
Is that a serious question? Because most software development is now done in high level languages.

With the proper abstractions, there's no need to debug the high level code at the assembly level; you just need to debug the abstractions.
I feel retarded now. So if the players are randomly chosen according to the rules, doesn't that change the possible solutions?

Edit: Is it because each solution must take into account every possible permutation of gameplay?
If you are committing to buy-and-hold you are committing to buying a diversified portfolio.

No one advocating buy-and-hold recommends buying one thing.
1password has changed recently. Are security experts recommending their newer cloud subscription service or the older version that stored the vault on Dropbox or another storage service (or both)?
Rust Bibliography
And Frank Herbert's "The Jesus Incident".
Is it really "cheaping out" when you computerize a system. CBTC systems cost in the billions, and as such NYC's subway is almost entirely running on 1930's relays. It's a solid system, but it requires the drivers to be on point 24/7. Very little pieces of the system enforce speed limits, as this has to be done mechanically with trip cocks, and while trip cocks will often pull the brakes if a driver runs a red signal, there's usually nothing that prevents the driver from going the wrong way on a one way track [1][2].

But ignoring that, computerizing the system can lead to better headways. Right now most systems, and almost all of the NYC subway, use a fixed block system to enforce braking distances. That means it doesn't matter if a train is 1001ft away or 1999ft away, the following train can't enter the next block until the train completely clears it. It's a safe system, but it means trains can bunch up in a stop and go pattern. Modern computerized systems can behave essentially like our self-driving car dream, where they match their speed safely to the train in from and keep the breaking distance block moving. For people in the Bay Area, BART uses fixed-block signaling (but is actually computerized), and Muni uses moving-block signaling. The difference is especially notable on the BART, which tends to speed up and slam on the brakes when there's train traffic ahead.

Also, it's federally mandated that we computerize trains, anyway, [3] mostly because of incidents like the Metrolink collision.

[1] http://newyork.cbslocal.com/2014/08/25/mta-a-train-operator-...

[2] http://nypost.com/2015/04/06/rookie-subway-operator-reversed...

[3] https://www.fra.dot.gov/ptc
If there were regions of antimatter in the universe, then there would be boundaries with regions of matter. And on those boundaries a lot of matter antimatter annihilation would happen, we would see those boundaries glow in energetic gamma light. We don't see something like that, therefore there are probably no large region of antimatter in the universe.
> [...] and the intuition we all have that Pluto, is in fact, a planet.

It's not intuition, it's rote learning. Nobody cares if Eris is a planet or not, because nobody memorized a list of planets that include Eris.

Eris is (apparently) slightly smaller than Pluto, but (apparently) the mass is slightly bigger. So in any sane classification both are planets or neither.

The problem is that we don't know how many other object of similar size and mass are out there. They are very difficult to detect, so probably there are a few more to be discovered.
Yeah, but then you just have 29 responses in total.
There is an exemption for security research when it comes to violating the DMCA by breaking crypto & also, it would be his device so honestly, no one is going to really care. Even when it was technically illegal to break device encryption I was doing it and reporting vulns to vendors with no issues because it was in good faith. Low risk.

https://www.ftc.gov/news-events/blogs/techftc/2016/10/dmca-s...
Star Wars and Programming Languages
Good point. Another nice option is the ability to roll over an existing roll over IRA into a 401(k) -- not all plans have this option. This is important because having basis in an IRA negates a lot of the advantage of doing a backdoor Roth IRA, but if you can move all of those IRA funds into your 401(k) without any tax consequences, then you're golden.

Note that 401(k)-to-401(k) rollovers are generally always allowed.
Microsoft abandoned Xenix when AT&T decided to commercialize Unix with SVR4.

OS/2 was, in fact, created to be Microsoft's Xenix replacement (and then when Microsoft fell out with IBM, we got NT as Xenix's replacement's replacement).
Ask HN: Who's Hiring April 2017
clojure.string also helps
If anything a bit of blasphemy is going to make it even more memorable, so it is a good strategy!
AKA https://en.wikipedia.org/wiki/Voice_acting_in_Japan
Looked like it could be real until they mentioned re-writing it in Visual Basic. #FakeNews
Co-Sign 100% ....in fact anonymous identities is part of the service we're offering:

https://www.cipheredtrust.com/doc/#anonymized-identities

It is the perfect balance between privacy and accountability.
Today is the worst day to announce an acquisition, since a "Facebook/Google/Microsoft/etc. acquired us!" April Fools joke is a common clickbait technique and is especially dumb/low effort.

Also doubly problematic this year since big M&A announcements typically don't happen on a Saturday.
dsacco, the reason why eBay of all places is simple, I like to buy cheap stuff on eBay, especially books, so I am always searching for books on the investing subject, so I can get ideas to back test and this is how I first stumble on the data and since the price was so cheap I got it and I tested it to make sure it was OK.

If it was not, I would have notify the seller, eBay and PayPal and get my money back...

Before this data, I was using Quntopian, but the huge limitation there is that you cannot test on the whole market, you cannot download their data, etc...

Anyway, I am trying to give an honest advice here and to prevent people of losing money because they don't know what they are doing...
$5K wouldn't cover a single photomask, unless you're talking VERY OLD process.

Maybe there are direct-write (laser or ebeam) litho foundries... I don't know.
The cause of Brexit is more complicated than "fake news." Just like the US, globalization has negatively impacted the middle class in the UK, and laborers have lost much of their leverage. The politicians weren't taking their struggle seriously, which led to doing the only thing they felt they could do to combat the erosion of their economy.
FLAVOR: Ubuntu Server

HEADLINE: Static IP address option in installer

DESCRIPTION: When I install a new server that should have a static IP address on a network that has a DHCP server, it would be nice if the installer would give me the option to configure the static IP address, instead of it initially getting a DHCP lease and then needing to have the static IP address configured by editing /etc/network/interfaces after booting off the hard drive.
At least nuclear weapons only go off when the detonation explosives are triggered in exactly the right way. Anti-matter goes boom if anything goes wrong with the confinement system.
Some of these types of problems can indeed be turned over to a constraint solver. I'd love to see a comparison with Prolog. Has anybody tried it?

The problem that I see with Prolog in this case is that a simple solution is simple because it is turning the search over to Prolog's built in constraint solver that knows nothing of the problem. This often leads to unacceptable performance with Prolog; performance problems can sometimes be addressed in practice by the appropriate placement of the cut operator within the logical specification of the constraints. This, at least in my experience, makes understanding what the program is doing very difficult.

Generally, I view Prolog (along with languages like Smalltalk) as a language appropriate for some problem domains that have come to the end of their lifetime because mainline, more generally useful, languages have adopted their features or incorporated them in libraries.
Just for the sake of having another solution for the same problem, here's the basically-zero-thought-required brute-force search solution in C: https://gist.github.com/arirahikkala/ef1a07dbd5a8ca3a077c03c...

Not as fast as dietrichepp's solution, but not terrible either, and probably the winner in terms of memory use. Since there's no state to keep track of, adding parallelism with OpenMP was trivial, too.
I prefer to leave/drop everything I need in front of the door.
This way, even if I'm in a hurry, the door just won't open without picking up whatever item(s) it is that I need to take with me (paperwork, umbrella, notepad, etc.)
Man, you're just waiting to be triggered at all times aren't you? Read the post you replied to again, perhaps more slowly this time.
Quote: "At the same time, atomic spectra is generated by ..."

s/is/are/
Gotcha, makes sense. Are we sure the density of the intergalactic medium is high enough to make interactions between matter and antimatter produce light visible from long distances, though?
> This is true, but the person filling your order does have a responsibility to ensure that your order is filled at the lit exchange price or better. If you find contrary evidence,the regulators would possibly be willing to pay you a lot of money for it.

I'm still struggling with your definition of a lit exchange price. Are you referring to the NBBO? The price you get largely depends on the order size, so the NBBO only applies up to a certain order size. Also the NBBO might not even be up-to-date.

Regarding regulation: "In deciding how to execute orders, your broker has a duty to seek the best execution that is reasonably available for its customers' orders" - usually this means you should have a better or same price as the NBBO - up to a certain order size. If you are happy with the NBBO then you are right and I wouldn't worry too much - however if I recall correctly the NBBO is usually pretty wide and has plenty of other caveats (eg: http://www.nanex.net/Research/IsNBBOIgnored.html).

> According to your Schwab link, if there is no fill improvement on Robinhood then you are better off using Robinhood for orders under 500 shares because commissions are $4.95 and the fill improvement is less than that. Is that your interpretation as well?

Do you mean price improvement? I seen no mentioning of fill improvement on the Schwab link. But yep, seems about right.

> Do you have a link showing that Robinhood customers do not get any fill improvement?

> I don't think the KCG link is relevant as they do not have retail customers.

Robinhood lists KCG, Citadel and Two Sigmas as their market centers - so that's the best information I could find regarding price improvement for Robinhood customers.
Of course, lazy-by-default also brings many advantages: http://augustss.blogspot.co.uk/2011/05/more-points-for-lazy-...
"...less shady terms"?

I'd say more shady. If you use less than the margin amount that they allow you, that fee looked at as an interest rate can be rather usurious.
Happy 4/1!