skysight-inc/HackerNews huggingface dataset:
Are you sure they make them out of titanium to save weight?
I have two anecdotal pieces of evidence:
1. I have a friend who does welding for the navy and was called in to replace part of the hull of a nuclear sub due to a very hilarious design flaw. It was >6" thick and took days to fill in... with steel.
2. I've read "Concepts of Submarine Design" which goes into great detail on the principles and systems of military sub design. The authors make the case that getting more weight is often a problem. This makes sense because every foot or air space needs to be displaced by more weight in the steel of the sub. So if they had a problem with subs weighing too little, they could just make them more spacious. And they're not very spacious.
Show HN: Aeroscope, a Wireless Oscilloscope Probe
It's more of a piece about this Cox guy who's been spearheading the change. Anyways, the change is:

Replace the Like with Reactions. There are 6 reactions you can choose from: angry, sad, wow, haha, yay, and love.
This is so cool, it shows you're a real developer's developer, if you get what I mean!

One thing that confused me a little at first, UI wise, is the scroll bars on the page Web Results and Image Results panels. I was just scanning pages and thought the page was hanging for some reason while using my mouse wheel.
My agar keeps freezing and its not lag
my agar isnt broken or my pc it just keeps freezing in place for a 2 seconds then plays normaly and then i either carry on player or i die
And for the record, if we were talking about Uber having driven the Paris terrorists to their drop off, this would be a valid comparison. But that's not what we're talking about, and its not.
FF changes the UI very frequently. Even the last update from 42 to 43 had changes. I love FF and its my only browser but this is one of the most irritating things they do. Maintaining a standard UI is a must to retaining users (and keeping them upgrading).
This is probably not the best place to post if you are in Germany looking for a job.

Also if you have German citzenship you don't have to return to Brazil unless you want to. Just go to the Arbeitsamt and they'll help you find a job.

As a developer in Germany, I can say these sites are pretty good for finding work:

http://www.webentwickler-jobs.de/
http://de.indeed.com/Jobs?q=.net&l=M%C3%BCnchen
FlexBright – Change Brightness by Time of Day
http://search.findmypast.co.uk/search-world-records/1901-eng...

hit the address tab on the top of the search page
Show HN: Application aware Docker monitoring SaaS
Preact – 3kb react alternative with the same ES6 API
Apple is trying to change its story and it will not work
I'd add that the industry really does not celebrate nor embrace failure the way that we're told it does. For those of us without the cushion of prior success or financial runway, repeating attempts to "get back on the horse" is an embarrassing exercise in futility.

With a failed enterprise, you lower your value in the eyes of many gatekeepers and peers, especially those who never tried running their own business.

But after repeatedly attempting to jumpstart businesses without capital, and subsequent failures, eventually you are more or less cast as foolish.

And god forbid you start to become pragmatic or slightly cynical in the world of tech startups! Because the moment your idealistic optimism comes into question, your "cultural fit" is permanently deemed negative. And bonus catch-22, having led startups also puts "cultural fit" into question for big cos as well.

Basically the personality changes that result from repeated business failure can begin to taint and poison your business relationships, and that can follow you around forever like a little dark cloud you just can't shake.

Psychological stamina is something nobody tells you about needing as a prerequisite for being an entrepreneur, but most of us don't learn that lesson until it's far too late...
Clyde's portfolio will have "built a custom cms from scratch" and then in my interview I'll ask why from scratch instead of using a framework and something like Pinax or one of the Rails CMS packages.

Bob will have "built custom cms on Rails/Django/CakePHP" I'll ask why him the same questions as I asked Clyde along with why he didn't use Drupal or Wordpress or ...

Alice's portfolio will have more in it that just "set up WP site". In fact it probably won't have that in it at all but it might come up during the interview: "Oh, the marketing site? Yeah, I just fired up a wordpress instance, themed it, got backups working and passed it over to IT and got back to my day job."
The PC British layout is annoying. It swaps @ and " relative to the US layout, among some other important keys, which means that when you're dropped at a US-layout terminal you struggle.

It also doesn't have the wonderful set of Alt+ combinations as the Mac British layout for typing various types of diacritics, widths of dashes, Greek letters, mathematical symbols, opening and closing quotes, and other things. PC layout users are stuck with acute accents, the Euro symbol, and nothing else.

Luckily, the Mac "British - PC" layout (not the same as the actual British PC layout) does include the extra Alt+ combos.

I'm not sure why anyone would find the Mac British layout difficult to program with. It's closer to the US layout than the PC British layout. I suppose # requiring Alt might be bothersome, but # isn't a symbol used that frequently in programming, and Alt+3 is not that difficult to type.
The biggest secret to designing ultra-low-power systems?
Omnibar is what you're looking for.
This is a very real problem. I am still running an early 2009 Mac Pro that is slowly beginning to resemble the 1970 Mustang Mach 1 I drove in high school. I have replaced the original graphics cards with an upgraded unit to get GPU support in Photoshop. I have installed a couple of SSD's to get away from spinning iron. Hunted high and low to finally find a USB 3.0 card that would work. Have been thinking about a swap to move from an 8 core tray to a 12 core unit.

It's really hard to justify buying a "new" Mac Pro that is a 4 year old design at this point. I keep hoping that Apple will announce a revamp but the days since the last release keep climbing and best guesses have the inside date at mid to late 2016 at best.

Since my creative applications are mostly subscription based and cross platform, software costs aren't so much of an issue anymore....

I have been using the Mac since '85. I have not used Windows since XP (job required) but I still get hives when I am around an MS box. Still this may be the future.

Sad Mac. No happy gong.
Also, he was an apprentice for a long time!

Leonardo da Vinci spent a full decade — considerably longer than was customary — apprenticing at a Florentine bottega, or workshop, run by a man named Andrea del Verrocchio. A good artist but a better businessman, Verrocchio surely spotted the burgeoning genius in the young artist from an “illegitimate” family, but he nonetheless insisted Leonardo start on the bottom rung like everyone else, sweeping floors and cleaning chicken cages. (The eggs were used to make tempera paint before the advent of oil.) Gradually, Verrocchio gave his charge greater responsibility, even permitting him to paint portions of his own artwork. Why did Leonardo stay an apprentice for so long? He could easily have found work elsewhere, but he clearly valued the experience he acquired in the dusty, chaotic workshop. Too often, modern-day mentoring programs, public or private, are lip service. They must instead, as during Leonardo’s time, entail meaningful, long-term relationships between mentors and their mentees.

https://hbr.org/2016/01/renaissance-florence-was-a-better-mo...
"Money won’t make you happy"

I disagree with this. I've been running my own company for a little over 5 years. Not having to worry about my rent and being able to live a comfortable lifestyle has made me really happy.

If I made $100 million and didn't ever have to worry about money again, I definitely would be happier. It's the peace of mind that I'm working toward.

But, the money isn't the main thing that makes me happy. The development challenges and systems that I build to run my company is what I really enjoy. The money is just a nice side-effect.

I agree with the rest of the article. I had an ex-business partner that got his idea of a startup from the stories he sees online. Everything we did had to 'change the world', regardless of the business model or practicality.

I had many hours of discussions about this and had to continually convince him we needed some sort of business model. His response was always: "We will get funding"...with no users, traffic, business model, or a decent MVP.

At some point I finally convinced him and as soon as it got down to the hard work, and he didn't see immediate results, he got discouraged. He thought that somehow if we just built something, we would have thousands of users in a couple of weeks.

I realized that even if whatever we worked on succeeded, he probably wouldn't be a good fit in the next stage of the company and I would be spending more and more of my time fighting these ideas. I had to end the partnership and he ended up getting a job.

Not everyone should own a business.
I am always a bit sad when I see money equated with success. Money is an artifact of success, not a result of success.

There are many "trust fund" kids who have lots of money and zero success, and there are successful people who do not have a lot of money (generally "yet"). Success is defining a vision of how you want things to be and then working to make that happen. For some it will bring in additional money, for everyone it brings satisfaction.
Living without BPH
I'll credit you for indeed finding something "interesting", but there's a telling comparison to be made between the criticisms in this Amazon review and the criticisms made in Kovac's book.

The Amazon review is based on the premise that Kovac doesn't know what he's talking about at all (that's a tough sell, since Kovac runs a trading firm), and builds that argument through fuzzy error claims like "Kovac got the number of trading venues at a particular date wrong" (the whole value of Kovac's prop firm was that it traded in zillions of markets) or "Computerization was less impactful in bringing down spreads than decimalization".

Kovac's book, on the other hand, is hundreds of pages of page-by-page technical criticism of the Lewis book.

This reviewer was supplied by Kovac with a mountain of rebuttable claims. What they came up with was "Academic and industry researchers have certainly found compelling evidence of high frequency trading firms front-running demand". But "front-running demand" isn't a technical term; it's an advocacy label coined by people who oppose algorithmic trading!

When your mic-drop closing criticism, the one you expand upon in your "updated" critique, is a tautological restatement of the position you're advocating for, you're doing something other than technical criticism. Which is fine, but let's be clear about it.
Teradata Big Data Analytics and Data WareHousing Online Training
ECharts 3.0
Actually, moving to Thailand and sipping mojitos doesn't cost as much as living on your parents' couch in NYC.

As that joke goes, the businessman sees the native sitting under a banana tree and asks why he doesn't work, so he can make a lot of money, retire and sit under a banana tree.

The natural pleasures in life don't cost that much, with today's technology and productivity. And they will continue to become more affordable.

The goal of a startup is to organize people and resources to change the world for the better!
how on earth do algos ruin markets?
Damn, and I just fresh loaded/configured/updated Debian 8.1.0 two weeks ago on home & laptop... here we go again. I may not be able to eradicate the corporate/guv snoops from my life, but I sure as damn will not sit back and allow them to run roughshod over my privacy by mining my every action. Limiting is the goal, mis-info is the entertainment.

Anyone know what Snowden types use for mobile? Tracfone? CM variant? Maemo?
I found "Treasure Islands: Tax Havens and the Men who Stole the World" a very interesting book on tax havens, and it made the point about the US.

I also found this idea from the book enlighting: All the tax havens around the US, they don't have 'real' banks, they put the money into NYC banks. Same with the UK: Tax havens in the cloud/former empire of the UK put the money into banks in London. The real beneficiary are not those islands, but US and UK banks.
Pretty much no software high performance software has gotten there by not thinking about performance/optimization until the end. IME what you do is you structure your program so that the optimizations you suspect you will need to make are easy, and can be done without large changes or rewrites to unrelated parts. This does result in more work than being totally naive, but less work than optimizing it ahead of time (you also usually won't loose the flexibility you loose when you optimize if you work this way).

And while using a profiler is required for optimization, it's not the only part. Optimization is a feedback loop between your assumptions and a profiler. Make assumptions, change something, validate the result with the profiler. Assumptions without the profiler can be wrong, and so you need the profiler, however the profiler tends to have an extremely poor signal to noise ratio (especially for code that is already fast, which tends to have a relatively flat profile).

Bit of a rant, but while theres truth to premature optimization being bad, and needing to use a profiler, most of the people who say these things mean 'never optimize' and assume if they have to the profiler will magically solve their problem and tell them exactly what they need to fix, which is rarely true.
Sorry, I don't understand what point you're making. I was strictly speaking about the aesthetics of their extensions pages. Those were descriptions of the impressions they give.

I was purposefully judging the book by it's cover, because I was talking strictly about the cover. I know FireFox is a brilliant piece of engineering and I never mentioned Mozilla. Red Hat spends a lot on Linux development too, doesn't mean anything about the aesthetics of the platform.
It's a long article, but here seem to be the relevant parts:

Facebook researchers started the project by compiling the most frequent responses people had to posts: “haha,” “LOL,” and “omg so funny” all went in the laughter category, for instance. Emojis with eyes that transformed into hearts, GIF animations with hearts beating out of chests, and “luv u” went in the love category. Then they boiled those categories into six common responses, which Facebook calls Reactions: angry, sad, wow, haha, yay, and love.

Facebook Reactions won’t get rid of like—it will be an extension. Within the company, there was some debate on how to add the options without making every post look crowded with things to click. The simpler Facebook is to use, the more people will use it. Zuckerberg had a solution: Just display the usual thumbs-up button under each post, but if someone on her smartphone presses down on it a little longer, the other options will reveal themselves. Cox’s team went with that and added animation to clarify their meaning, making the yellow emojis bounce and change expression. The angry one turns red, looking downward in rage, for example. Once people click their responses, the posts in News Feed show a tally of how many wows, hahas, and loves each generated.

edit: Yay was rejected as a choice.
If they didn't, they aren't required to pay for it. If they want to wait they can. Better yet, if they want the exchange to wait for them until the price gets to be what they want, they can do that as well, without paying for any immediacy at all.
Third anicdote; titanium is pretty expensive stuff. Online metals is selling a 3"x12"x12" piece for $1.7k. If your hull was 200' long, 15' in diameter you'd need $486M just for the raw titanium on the hull. That seems high just for the hull, even for a nuclear sub. Google is saying the whole thing is probably about $2B and I'd expect all the other stuff in there to cost a lot.
Considering these laws are enacted in order to protect private businesses from unfair practice, it makes perfect sense to me.

Of course, whether this particular law is really about fair business practices vs. protecting a monopoly is an entirely different debate.
Thoughts. Thoughts are the worst.
I thought you were making the argument that reducing tick sizes would reduce the amount of effort put into reducing latency (or reducing the overall amount of prop HFT volume), but I guess I was wrong about that. The idea that reducing tick sizes would ultimately reduce market maker risk by making certain quoting strategies less viable is interesting.
We use Ruby extensively in testing and infrastructure and have lost months of cumulative developer time to this attitude. It works for a single user constantly making changes to a small piece of code and prepared to work out the solution to dependency change problems as soon as they come up. However, it doesn't scale to a team of people working on very large code bases.

One example of this is having a repeatable developer setup guide. If the dependencies might have changed by the time a new joiner starts your setup guide could very easily end up useless or misleading and that's without anything at all in your own codebase having changed.

Shrinkwrap fixes this, but always gets added after things went wrong several times already. It should be the default.
> It's certainly snappier than the alternatives.

I recently got a new, high-end Macbook Pro (16GB, 1TB SSD, i7 2.8Gz). I've been a long-time Chrome user, but I figured this would be a good time to try Safari: I've heard good things about it's energy usage.

I used Safari as my primary browser for about 2 weeks, and just switched back to Chrome. Safari wasn't bad, but it seems to take a LONG time to make connections to websites. And sometimes it would just hang indefinitely. At first I thought this was a machine issue, but all my other networking apps (Chrome, Postman, etc.) return immediately.

Like parent comment, I really want to like Safari...
Small startups can leverage a factoring company to handle A/R and do risk assessment for lines of credit with customers before doing work. Definitely a worthwhile service to leverage if you do B2B.
Curious about what you're working on... hit me up (link in my profile) if you want to chat. I'm working on something similar.
I imagine this will make their sentiment analysis better. Hopefully, it will be weighted sufficiently highly in the newsfeed algorithm that I can start to exert some control on the newsfeed again. I can mostly keep my feed relevant by blocking whole sites (huffpo, buzzfeed, etc), but it would be nice if Facebook knew when individual posts hit a "breakout" status and could appear in my feed again.

On the other hand, ion they use this too heavily, then the newsfeed becomes a serious echo chamber, where it is not only correlated to your friend group, but also to your "optimal" emotional reaction. Might be great for Facebook to sell more ads, but not necessarily great for the end user.
The same way market makers have made money since prices were literally printed on a stream of tape: by outcompeting other market makers to capture spreads.
Then run the script (and post the results), instead of trying to make others work for you and not putting in any effort yourself.

I just got myself a nice speech about medicare and border security (!?).

PS: Thanks for the downvotes. But life is easier when you don't care about imaginary internet points :P
It's certainly no longer clear that VMware is hands-down superior to VirtualBox for desktop virtualization. I maintain a library of VM images and most of my users have been going with VirtualBox in the last couple of years because it's so much easier to get your hands on and it has worked out-of-the-box more reliably on a variety of systems in the last few years, and also the ability to have network port forwarding configured by an appliance rather than solely on the host. VMware seems to be the platform of choice in large enterprises where you can easily get a license or already have the infrastructure in place. For more casual desktop users, I really don't see it in use anymore.
Perhaps give Tree Style Tabs on FF a try.
I disagree: Slack tends to be used by work-related groups, where people are already semi-prepared for what any one of their co-workers might post in the company Slack channel(s).

Facebook is absolutely correct in keeping a very tight rein on this stuff, and in making the options uniformly "cute". If emotions start running too high, people will start abandoning the entire platform, I think.
Out of the SF bubble, the exact opposite is true. In Enterprise environments, racked servers running VMWare hosts still reigns supreme.
Stopped reading at "while all the US grids operate on the same frequency, those frequencies aren't always aligned—the peak in the AC of one grid may line up with the trough in a neighboring grid". Practically every regional grid is interconnected to it's neighbor. If they get this basic infrastructure wrong, I'm unwilling to fact check the rest of their premise.
Aereo’s Founder Launches Starry Wireless Broadband
Looks like they reduced it to 5, because yay was not universally understood.
Slack's usage is tiny compared to Facebook's. Facebook has to account for a dozen things that Slack doesn't. The big one is all of the different cultures that use Facebook.
I've also been on that journey and am starting to feel the same way about variance.
Mortals Rejoice at So Great an Ornament of the Human Race
Yep, the Alfa also had a tendency to slowly kill it's crew from radiation exposure.
No, there is probably nothing especially productive about pricing things at that level of granularity. But speed is a reasonable figure of merit that allows different algorithmic trading firms to compete for the business of making markets, rather than having all of market-making owned by one of the big investment banks.
It's a pretty simple principle between the happy curve and where it intersects with the financial stability curve. However, the opposite can be very true as well. Namely, poverty as it plays out on the social ills that we in the United States have - most notable, are minorities and the lack / motivation of the government to cure this problem. I believe there is some paradigm where happy can be achieved if the work/happy ratio is subsidized through social programs lowering the happy curve (or at least tolerance) because of the work requirements to achieve the financial base to maintain that curve. It's an interesting problem, but overwhelming it causes desperation and by a minor extension drug / alcohol abuse / crime syndication, and violence (domestic abuse and gun deaths in particular). The upward mobility is one thing, but an opposite paradigm is also a very interesting dynamic with respect to if money can or cannot by happiness. However, your example of "owning your own company" is also a self-confidence motivator that is a game changer. :) That's why we need a minority middle class to fix poverty, IMHO.
How come it is not engineering? Engineering is all about solving problems. Good engineers solve problems with less work and time and achieve same or better results (high efficiency).
I think the gist of what's being argued here is that the increased volume of trades (facilitated by HFT's drive to minimize transaction time) allows more 'real time' information about the relative value of instruments to be communicated.

That said, the first example quoted don't really make a lot of sense, in my opinion. A couple selling off some stock to pay for their child's tuition probably won't ever have their transaction directly represented in the market (it will likely be lumped in with or divvied up from other orders handled by the same brokerage), so the information conveyed is ultimately somewhat diluted.