skysight-inc/HackerNews huggingface dataset:
Talk about the particle "deciding" is coming from a Copenhagen interpretation viewpoint. I find the many-worlds view clearer:

When the two particles are set up, their wavefunctions are in sync (or rather, antisync) with each other. Particle A's wavefunction looks like an equal superposition of up and down (at least, when projected onto a single axis; the wavefunction for the full particle incorporating all the possible axes is more complicated); Particle B's wavefunction is the same but 180 degrees out of phase, so that A is up whenever B is down and vice versa.

When you make a measurement of particle A, you entangle yourself with it; that is, your own wavefunction becomes in phase with its. (Again, it's still an equal superposition between having measured up and having measured down). When your friend makes their measurement of particle B, they entangle themselves with it in the same way. So when you meet up with your friend, your wavefunctions are in (anti)phase; the universe as a whole is an equal superposition of the world where you measured up and your friend measured down, and the world where you measured down and your friend measured up.

(What does being in that superposition look like, subjectively? It looks like a 50% probability of the first world and a 50% probability of the second world. Which agrees with what we measure when performing the experiment)
It is true that the program doesn't show free will is completely impossible for all instants in time (because it cannot test infinite instants), but one has to wonder why any instant n would be different than the first.

Your second point equates to, "Well, we don't know everything about everything in the universe, so there might be a mechanism for free will we haven't discovered."

True, but that also applies to every other proposition that we can safely disregard because there's no good reason to accept it.

In the case of free will, we as potential authors of action need a lever for injecting ourself into the universe's chain of events. We need a hook. We need an influence point. But since we ourselves are products of that universe, such a mechanism is purely speculative.

The only reason we think free will exists is because we experience it. But given our understanding of the brain and its propensity for projecting all manner of illusions onto our consciousness, I submit we should not consider this evidence.

Show us how we have gained control over a previous state of the universe in one of the instants between the big bang and now, or show us how we can control the physics of transition from one state to the next.

Only then will one have made a case for free will.
Please let me know if you're continuing to have issues. All seems fine my end.

You can stick the following in your browser console to log server latency stamps on incoming market data:

require(["registry"], function (registry) {
var instrument = registry.get("instruments").get("EUR/USD");
instrument.on("tick", function (data) {
console.log("Server latency (ms):", data.get("serverLatency"));
});
});

Of course replace "EUR/USD" for whichever instrument you want to monitor. 10-20ms is typical for comms between our instances and the brokers (we get similar results for outgoing trade execution requests, factoring in the round trip).

Our stack is largely JavaScript. We've found NodeJS to be blisteringly fast and lending itself perfectly for this kind of application (low memory, high throughput, heavy processing).

We have a backesting framework for running against historical data. Do you have a requirement for pulling historical data into an algorithm during live trading? We haven't included this in out API, though it would be fairly trivial to implement. It's key though that algos run with as little in memory data as possible. We also include a framework for writing your own custom technical indicators. These are naturally set up to pull historical data so may be what you're after. These and the built in indicators can be used in your script by just calling e.g. sma(10)
I should have said trackpad.

I can emulate a second button (right click) with two fingers, but it is pretty fiddly, and I often mess up with fat fingers. And I really miss having a third button for pasting from the current buffer.
OpenGL is supported in Windows, through installable drivers. Recent (Vista+) versions also ship with GL1.4 support via a GL->D3D translation layer, for users whose driver vendors do not ship an actual GL driver.

The main reason ANGLE is preferred is that in general, on Windows GL drivers are dramatically inferior to D3D drivers. They are slower, less stable, and sometimes omit key features. D3D historically has a much better story for preventing shaders from hanging/crashing video drivers, and for recovering from failures that do occur (lost surfaces, driver TDR, etc) - something that GL has now in modern implementations, but didn't have consistently when WebGL was introduced.

Between the more widespread availability of good D3D drivers and the stability advantages, I suspect you might not see ANGLE vanish anytime soon - despite the fact that GL drivers for Windows keep improving.
You still have another chance. I looked at your site and looks like you have an intro video there, but it only shows how to get started with the site, not the background of the site.

Why not create a separate page - "about" maybe - and post a link to it? Be as descriptive as possible about why you created it, how it's useful to people and who you hope will use it to the fullest.

Then, post your link with the title "Show HN: Somevid" or something similar. As long as you have "Show HN" in the front of the title, it will show up in that section of the site.

Remember to be descriptive and try to relate as clearly as possible what you want to accomplish with the site.
"Over 40 percent of those 5 and under are stunted — meaning they are in the bottom 2 to 3 percent of the worldwide height distribution for their age and sex"

Argh. It really bugs me when newspapers can't do simple arithmetic. Especially in the lead paragraph.

India is about 17-18% of the world's population. It has a slightly above average fertility rate, so it will have disproportionately more children. So about 20% of the world's children are Indian.

If 40% of Indian children are stunted, therefore, at least 8% of children worldwide must be stunted (not including Africa, China, etc.). 8% of children cannot be in the bottom 2-3% of the world's height distribution. That is not how statistics works.

If this obvious an error was put in the lead paragraph, how can we trust that the other facts are accurate?
Cool, I'd not seen the updated work. I wonder how much can be done in realtime. I have no idea what the compute split is between between the different processes.

With sensors (gyros etc) the camera path would be trivial, instead of recovering that from the video. Rendering the results would be possible on a mobile GPU. Just leaving the frame conversion to a point cloud in terms of compute and memory.

Maybe some scheme where you down sample the input frames to create the deformation mesh, then apply that to the full size frame would be the way to go
Brings back memories of the old sawfish as the GNOME WM.
I assume the transformation is not hinted, because e.g. animating ^ to double ^ (like chevron) would be (subjectively) better by cloning the ^ and shifting it down.
Would be nice to know how this actually works; docs dont say much about how the tool injects the code into the running process.
>we feel like we can address at the next ballot box if we feel so strongly?

Faith in the democratic system despite much evidence. How much change has there been since Obama got in? Its worth remembering this:

http://www.cnet.com/uk/news/obama-no-warrantless-wiretaps-if...
1. Current physics - and in a way it goes back to Descartes and the very first conception of modern physics, the idea that things happened for mechanistic reasons rather than mysterious temperaments. If information can travel instantaneously, doesn't that imply that distance and time are in some sense meaningless? Also, relativity + faster-than-light information implies causality violation, grandfather paradox and all of that. It's not "beyond all reasonable doubt", but standard physics seems to respect it as an axiom.

2. Because Conway likes attention.
Personally I am keeping an eye on the technology but I haven't decided to buy a printer precisely for that: I know I have exactly one use for it (replacing small plastic part from a piece of furniture) but then I am basically done, and I doubt that just using it once will open up a zillion new ideas for me.
But on the other hand, I periodically talk with a few other friends/acquaintances who live in my area and are in more or less the same situation regarding "use cases".
The plan is to end up pooling the money, set it in one of our basements and then share it among 4-5 different households (most of the tinkerers at heart).
Create and share your fractals in the browser
Thanks for all your feedback. Appreciate it. I will create an about page and the motivation behind creating this site. I think it is a great idea.

I'm unable to remove my link that was posted 3 days ago. Delete option seems to be not there. I'll try posting a link to the about page as suggested.
Why Criteo is getting punished by Wall Street
Facebook Does It Again. Cheating Dalvik
Thanks ejr, this is really helpful. I will do as suggested. This should also I believe improve our visibility in search engines.
People using the HTTPS Everywhere extension will have the site URL as https, but not the embedded videos.
HN Search Powered by Algolia
The ConFoo Conference in Montreal is always an excellent one for PHP (and other technologies).

http://confoo.ca
Smells like a press release. No actual information on "algorithm" except:

So how did a computer algorithm pick up on the start of the outbreak before the WHO? As it turns out, some of the first health care workers to see Ebola in Guinea regularly blog about their work. As they began to write about treating patients with Ebola-like symptoms, a few people on social media mentioned the blog posts.

And it didn’t take long for HealthMap to detect these mentions. While social media isn’t necessarily the most reliable source of news, HealthMap’s algorithm is specifically designed to sort out the “noise” from the “signal” as it digs through the data, making the results far more useful.
So useful...
Microsoft Demos Amazing Timelapse Technology
> Rather I expect the transition to 'user focused' 3D printing to be the point where nearly every gizmo you use around the house is printed and then recovered after use. Any container, tool, decoration, replacement part, mounting bracket, paper good, or packing material, pretty much anything that you have to go out and buy today, and have to recycle responsibly.

The cool thing about this, especially if you can recycle, is that you can say "Well, I don't need x, y, and z -- I'll just toss them in the melter" the same way someone says "man, I have a lot of plastic spoons and old hangers, I'll toss them in the trash."

But then you can turn around and say "Oh yeah, the doohickey on my closet door is broken, I'll just print another one."
Correct, but they use the same materials and training programs as far as I can tell, just different facilities.

The Picasso bit for instance was a paragraph included in an Apple history lesson, but it wasn't some philosophical discussion, just an aside about how they think, mostly to start some discussion about basic values.
more cognitive load.
No we need to be able to shed unwanted power. Generation using renewable sources can be over provisioned, and still be economically feasible. Power usage fluctuations are thé key issue to manage. As wind is a very good base load provider.

Don't look at capacity factor that is very misleading.
None of what you said is in any way anthropologically sound.
Ask HN: Selling a conference – how do you value it?
I've been organising a technical conference for 2 years now in France. Both years it went well: around 200 attendees in 2013 and 250 in 2014 and made a profit both years.

Now a company that organises already many technical events approached me to see if I'm interested in selling them mine. I am but I don't find anything online about valuing a conference.

Sure, I can do as I would for any other business but it's not any other business and I was hoping to find at least some average multiplier or similar to kick off the conversation.

Any hints? Thanks!
I don't know if I agree. I get the feeling the majority of people on HN are left-wing. Just look at the comment threads about basic income.
Thanks for providing a more balanced viewpoint on high speed rail. It's a really big gamble, I hope for California's sake that it pays off.
The flu virus is very good at getting you to spread your bodily fluids all over the place: it makes you cough violently. The droplets are also invisible, so it's easy for others to touch them without knowing.

Ebola has many symptoms, but coughing isn't one of them. By the time you start coughing up blood, most people in the developed world will know better than to touch that blood.
Your knowledge of Guile is outdated. Read http://wingolog.org
Exactly.

If you are injecting a zillion parts and .1 cent matters, then China is great. If you don't have the volume to amortize all the pieces, screwups, and lost time, then China is a bust.

However, one of the things that people miss here is that nobody here is actually talking a real volume (100K+ parts). Even if you can get the mold cheap, any competent injection molder is going to charge you an amount for NRE setup time that is going to make injecting 1,000 parts not particularly price competitive.
> With sensors (gyros etc) the camera path would be trivial, instead of recovering that from the video.

Well... not quite trivial. They're calibrated differently per model, and it's actually quite tricky to reconstruct the path based on accelerometers and gyroscope alone. There's also the likely issue of synchronising the data from these sensors with the video input. If you solve that second issue however, it could in theory at least help with recovering the path from the video, creating better predictions where the point cloud has moved to for example.
It's on the front page already
Doesn't your question presuppose that the height distribution tables reset every year? If the height distribution is a fixed scale over time, then the bottom 3% of that distribution could easily account for far more than 3% of the children that are currently in that age range.

Late-ish Edit for Clarity: We don't weigh all the children every year to calculate new tables, we have enough data to figure out how much a 'normal' child should weigh. The percentiles are based on normal age / weight / height correlations and not their relative weight in the world's current sample of children.
Does the usage of African instead of Guinean bother anyone else? Africa is widely not recognized as a continent of distinct countries and this isn't helping. It's like referring to people from the U.S., Canada, and Mexico as North Americans.
Oh jeez, there's no happy way of looking at this is there.

Seriously though -- this is extremely depressing to me, it's literally giving me terrors right now. It's reducing all that I love and value to nothingness. How do you guys deal with this?
This is interesting, especially in the context of this interview Andreesen did in Stanford Graduate Business School: https://www.youtube.com/watch?v=JYYsXzt1VDc where he talks about consuming news and how current news is ripe for disruption because it exists on a fragile framework of selling "objectivity", and he seems genuinely interested in how this can be changed.

Buzzfeed has the audience, but maybe only a tangential focus on what we are used to as 'news', I wonder if this is the result of that thinking, ('what we know as news is changing') or something completely different.
UNICEF statistics classify 25% of children as stunted.

http://data.unicef.org/resources/2013/webapps/nutrition#

Not sure where that 2 to 3 percent is coming from.
Writing critical code in JavaScript? That's interesting.
It is a new Microsoft, unfortunately. They are pushing stupid HTML5 everywhere :(. Might even make Dynamics AX use it.
sry, phpclasses.org is not a very good ressource.

Try https://packagist.org/ instead. http://www.phptherightway.com/ is also a goof landing spot.

Concerning the original question: I don't know of a string PHP community anywhere. Some high-profile PHP developers are active on the PHP subreddit (ircmaxell, nikic, Phil Sturgeon, Paul M Jones and many more).
It's interesting to see so many people supporting webGL. Other than the "same X, but now X runs inside a browser" novelty aspect, I have yet to see any evidence that webGL does anything useful. To be fair, in this respect, it's no different from flash or javascript or any of the other technologies that people use to produce inferior replacements of native applications.
Good luck! :-)

BTW, this is Show HN: https://news.ycombinator.com/show . Note, there are guidelines, but as far as I can see your site follows them already so I wouldn't worry too much about them. If you add a new feature, it might help to draw attention to that in the future, but don't create a new "Show HN". On a side note, it may be useful to keep a blog on the side about site news, feature updates etc...
Gribouille: a demo hand-writing/drawing application for Firefox OS
As nostrademons said, I meant on the receiving client, not the sender. Other than it being a potentially difficult nut to crack I don't really see any technical reason it'd be infeasible. Is that what you meant?
> Doctors who knew they were working with Ebola still managed to get infected.

Yes, but these doctors often don't even have the equipment to provide proper antiseptic medical care let alone containment-type biosuits.

In addition, quarantines can be rolled out quickly and effectively in modern countries with well-developed communication infrastructure.

This is not to say that we should be complacent. However, a bad flu epidemic poses more direct hazard to the modern world.
> An auction is the obvious solution. Submit bids with your application for the fee to be paid yearly to the USA and the highest bidders get the H1-B visas.

Nah. They can bid with salaries rather than fees. Better to just collect the income and payroll taxes while giving the visas to the most valuable guest workers possible.
I was under the impression that all the 3d id engines (except Rage) have been released in some form under GPL compatible licenses.
Of course you can not trust them. Just look at OpenSSL. If you truly need "safety critical" there are no shortcuts.
The best kind of HN comments:

- are one line long

- provide categorical judgments of absolute negativity

- originate "from above", from an authority figure with a much higher intelligence and much better understanding of the topic

- provide no information or arguments whatsoever

Pretty nice example right there.
There is also another project written in Common Lisp, The Deep Space Window Manager :
https://github.com/dss-project/dswm

Does someone have some experience with it ?

The README has the following statement :

"DSWM is a fork of StumpWM, so have most of all features, which have
StumpWM, but it designed for better usability and better integration with
emacs."
Haha, that would describe the product almost perfectly. Only the "Ikea" part has to go ;-)
Ask HN: I found a way to find thousands of emails/pwds. Now what?
While doing a bit of research for a blog article, I created a way to find thousands of new valid emails / passwords every day. The method I used and the scripts I wrote are actually very basic and common sense, and mostly rely on the fact that there is an easy way to find passwords that are poorly chosen. Now I am a bit torn about what to do. In a sense I would like to warn people (even though those warnings have already been said thousands of times) about this whole thing. But on another hand, putting out that information to the public would only be detrimental to all those people whose credentials would all of a sudden be out in the open for everyone to abuse. There is also the legal issue and I am in no way trying to get close to doing something stupid. Also this is not a case where I can issue a responsible disclosure as the information is found through 1/ weak passwords by random people, 2/ weak encryption by random organizations. Should I just let the whole thing go and concentrate on something else? Please advise. Thanks.
Low-level Bitcoin
As long as you are not complaining about these people living on state benefits, and not working. I support the use of machinery and robots to replace people, but you also need to right economic and societal structure to make it work. If you have 30% of the population unemployed, how do we keep those people from becoming depressed and impoverished?
The world food programme list their methods here. http://www.micronutrient.org/nutritiontoolkit/ModuleFolders/...

The CDC and NCHS developed data that was adopted by WHO and then WFP.

> To determine a child's nutritional status,
you need to compare that child's status
with a reference for healthy children.
References are used to compare a child's
measurement(s) with the median for chil-
dren of the same sex and age for height-
for-age and weight-for-age, or to children
of the same sex and height for weight-for-
height. The internationally accepted reference was developed by the CDC and its
National Center for Health Statistics
(NCHS) using data collected from a popu-
lation of healthy children2.

> The World Health Organization (WHO)
adopted the NCHS reference curves for
international use. Evidence has shown
that the growth patterns of well-fed, healthy preschool children from diverse ethnic
backgrounds are similar and consequently
are applicable for children from all races
and ethnicities. These references are used
by agencies involved with nutritional
assessments and analysis, including WFP.
Code coverage and static analysis are such valuable tools, I can't believe they are not used more and more frequently .. it really seems that a lot of open source projects would benefit from a coverage/analysis phase on checkin.
This paper proposes converting California's power generation over to wind and solar, with electric vehicles and electrically generated hydrogen vehicles replacing all others. All use of fossil fuels and nuclear power is to be phased out. Notably, it suggests that hydroelectric power should be used to balance loads. i.e. It proposes that California's power grid be stabilized with only hydroelectric power as an on-demand source of generation.

Firstly, in 2013 California imported 32.7% of it's electricity. California has little control over how this is generated. Of the power used by California, 40.8% is from Natural Gas, 8.1% is hydroelectric, 6.0% is Nuclear, 4.3% is from wind power, 4.2% is geothermal, 2.1% is from biomass, and 1.4% is solar[1].

Natural Gas and Nuclear power are both excellent on-demand sources of power, and currently meet 46.8% of California's electricity requirements. If these power sources are to be phased out, they must be replaced with energy sources that are on-demand. Wind and solar do not fit this description. Hydro does, but quintupling California's hydroelectric capacity will have a huge impact on the environment. This paper greatly underestimates how much on-demand power generation capacity a power grid needs in order to be stable.

Side note: California currently derives little of it's electricity from wind or solar power. Electric vehicle batteries carry a high environmental cost to produce, so it is imperative that the energy they are charged with be of renewable origin for any net environmental benefits to be reaped. Given that 40.8% of California's electricity currently comes from natural gas, it's clear that anyone plugging their EV's into California's grid is doing the environment no favors.

[1]http://energyalmanac.ca.gov/electricity/electricity_gen_1983...