skysight-inc/HackerNews huggingface dataset:
The estimates being thrown around is that the larger explosion was equivalent to 21 tons of TNT. Does that seem low to anyone?
This shows the importance of sleep, but also adds to the question of what we can do to facilitate this process while awake. It seems the best we can do when we are awake, is to use neuroprotective substances to prevent the build-up of the plaques or to sequester them for easier breakdown while sleeping.

For example, Noopept, the di-peptide form of the nootropic piracetam, has been shown to lower levels of amyloid plaques via "hydrophobic interactions with toxic amyloid oligomers, [which] prompts their rapid sequestration into larger fibrillar amyloid aggregates." In the linked study, researchers concluded that the "mitigating effect of noopept against amyloid oligomeric cytotoxicity may offer additional benefits to the already well-established therapeutic functions of this new pharmaceutical."[1]

The abilities of substances like this to protect the brain as we age, are examples of why we need to move major parts of the medical field to focus on preventative and rejuvenating medicine, instead of just treatment for the final symptoms of a disease that has been in progress for decades...

Background info:

This is a process of what is now called the glymphatic system. The scientest quoted in the article (M. Nedergaard), previously coined the term "glymphatic" in her paper[2] "The Garbage Truck." She was a follow-on author on the paper referenced in the NPR story, "Sleep Drives Metabolite Clearance from the Adult Brain." It is a pretty interesting paper and I have a full-text copy available in my private research vault [3].

[1] http://nootroo.com/researchvault/neuroprotective-and-nootrop...

[2] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3749839/pdf/nihm...

[3] http://nootroo.com/researchvault/sleep-drives-metabolite-cle...
We were trying to build webinars on our platform, and used hangouts on air once, but it somehow felt odd to use and we weren't entirely sure what goes on (for example, one of the speakers disappeared and we couldn't see him, only this generic avatar).

Would crowdcast solve these problems by providing a better interface for the presenter(s)? or is it still relying on the existing hangouts interface?
You're not alone. Use Vieux architecture instead: Vieux.io :)
The numbers you cite are six months old.
Linux/SteamOS has 2,628 games, up from 915 six months ago.
There's a big difference between not liking something, and it not functioning.
Don't those provide the service of helping to distribute goods?

That seems like saying that grocery stores don't provide any value because they just buy the food and then sell it to you?

Or, alternatively, like saying FEDEX doesn't provide any value because they just bring things from one place to another (buying it from one place for $0 (plus an agreement) and then selling it to you for $[0+x] (and also the fulfilment of the agreement) , or alternatively, buying it from you for an agreement and $[0-x], and selling it somewhere else for $0 and the fulfilment of the agreement)?
Your blog's design reflects the minimal frugal lifestyle. I would be interested in hearing how you deal with your digital possessions. Computers have an awful tendency to fill up with clutter over time. I'd love to hear how you deal with it
Blog posts and infographics aren't Show HNs. Please read the rules: https://news.ycombinator.com/showhn.html.

There has to be something people can try out. If reading counted as "trying out", literally every post could say "Show HN".
"The use of the term front-running in this article is completely inaccurate and is unfortunately becoming standard in reporting around HFT. No HFT sees your order before it trades as a result of a latency advantage, and therefore cannot "front run" it (not to mention the fact that even if they did, they do not have a fiduciary duty to you so they can't front run you by definition)."

I don't think the article is saying that they are front running via seeing their order - they are saying that an arbitrage opportunity exists because of the difference in speed of the two data feeds.

"Saying you have N number of winning days is largely immaterial as that usually means "trading profit" ie it does not account for the price of doing business and would not be considered profit in other businesses. Also, there are lots of easy to devise schemes for making a little money often, but most of them lose a lot of money occasionally."

Oh I agree - of course it doesn't say whether or not are, overall, making money. But that's not the point - they're saying that their systems made money 300+ days in a row. Even if that is a small trading profit, that shouldn't really be statistically possible. But you're right that the numbers may be (and likely are) a PR activity by a given HFT firm as much as anything else.

"Finally, HFT profits have already disappeared (at least in the market making space which is where these venue arbitrage volume numbers come from). It is a low margin race to the bottom that is now being propped up via legislation (the sub penny rule in equities)."

Interesting - what, specifically, about the sub-penny rule is propping that up?
How is this any different than rust(aside from [i|u]size type)?
I wonder how cognitive functions and our personality would be affected? Two halfs make a whole, yin and yang and all that, if half the brain is asleep, would we even be able to think straight?
Oh, interesting. That definitely sounds like the source of my problem. I'll have to look in to it. Thanks.
You sarcastically state: So they should start hiring women who don't have the skills over others (who happen to be male) that do.

This asserts that if a company has hired a preponderance of men, and then it goes out of its way to hire women, that it necessarily must hire women who are inferior to the men it was predisposed to hire.

This is based on your axiomatic belief that the company's hiring was already fair and unbiased, and if a company doesn't have any (or has few) women, this is because there weren't any qualified women to hire. Same for people of colour, &c.

So if hiring is already objectively fair, seeking diversity must necessarily involve hiring inferior people.

But the argument falls apart if hiring ISN'T objectively fair, if the assumption is wrong. And that's the point being debated. Thus, if you feel that hiring is already objectively fair, you should state that outright, not beg the question being raised.
Sometimes it feels like big events happen that lots of people here want to talk about, but need to find some kind of technology or "hacker" article to submit as a center for discussion. It's a bit weird and it feels like there should be some exceptions to the rules to allow these kind of events to be discussed as they are happening.
(sorry for delayed response)

I don't think this is accurate. I don't know when Ryan went to work for node, but if you listen to his earliest talks, where he discusses the journey he took to develop node, it was an independent project.

Additionally, these posts identify when Joyent took node under its umbrella (along with the IP):

https://www.joyent.com/blog/a-new-abode-for-node/
https://groups.google.com/forum/#!topic/nodejs/lWo0MbHZ6Tc
There is truly a place for VCs and yes some businesses definitely need that kind of funding. But right now it seems VC is so available things are getting funded that will never be able to hit that 10x mark.

So businesses that could have been great bootstrap businesses will grow too fast with too high a burn rate and flame out at a series A or B crunch.

Meanwhile, if the business could have taken it slower they could have built something really valuable for themselves.
"only ones that matter financially"

Who are you serving? Investors or yourself? The SV model is that this is all that matters but a 50M business is still a damn good business and not a "lifestyle" business.

Also, read the rest of the quite-- lifestyle business was only one of the options.

It's quite possible to build a fast growing business that you never sell, that's not a "lifestyle" business.

The either/or dichotomy is disproven by your quote.
Humans repeat stuff. Caching helps
Wow, what a title: "Lei Jinde, the deputy propaganda department head of China's fire department"

I hope that's a translation error. Fire Fighters are the last people who should need a propaganda department.
> We just need to see the problem as "who can provide liquidity and stability to a market" rather than "who has an unfair advantage"

And essentially every single analysis of THAT problem says that HFTs consume liquidity in times of instability, and "provide" liquidity in times of stability.

As such, HFT destroys the value that people actually care about.

Anyway... no point in arguing about this; the sociopathic assholes who run HFT aren't going to stop, the exchanges aren't going to fire their best customers, and the regulators are all bought and paid for. The only good news about HFT, at all, is that because it's a completely commoditized playing field, their margins tend to get compressed over time, so at least they're screwing us slightly less every year.
I have a friend who suffered from 'auto-brewery syndrome' last year. From wikipedia:

Auto-brewery syndrome, also known as gut fermentation syndrome, is a rare medical condition in which intoxicating quantities of ethanol are produced through endogenous fermentation within the digestive system. One gastrointestinal organism, Saccharomyces cerevisiae, a type of yeast, has been identified as a pathogen for this condition.

Now imagine an auto-brewery syndrome with this modified yeast...
War crimes? That seems like a stretch.

He's charged with theft of gov't property, unauthorized communication of national defense information, and willful disclosure of classified intelligence. You can view the charging document here: http://apps.washingtonpost.com/g/documents/world/us-vs-edwar...

What is the more appropriate charge you think should have been levied instead?
The Secret Structure of the S-Box of [GOST] Streebog, Kuznechik and Stribob
>A little disingenuous considering in that linked article Binney states that it was more the publishing of certain content he disagreed with and not Snowden's actions.

That was a direct result of Snowden's actions. I don't see the argument that his exposing the US spying on other countries is "right", and deserves a pardon. If he had only leaked local surveillance, I'd have a weaker case.

>You won't win a trial on principle when it's the law that's the problem.

If the problem was that he disagreed with the law, in the US, the way to change laws you disagree with is through the political process. Not by breaking them then demanding a pardon.
There's already quite a few JNI wrappers out there for pure-native activities.
--That means there is a latency arb opportunity when a trade happens at one venue.

This is in fact the business proposition of a whole number of markets, vis-a-vis the HFT firms. If you didn't know this you might have wondered how on earth they get people to cross at midpoint.
See also: Micro-ISV.

https://en.wikipedia.org/wiki/Micro_ISV

http://www.amazon.com/Micro-ISV-Vision-Reality-Bob-Walsh/dp/...

http://ericsink.com/bos/Micro_ISV.html

Make sure to read this to get a different take though.

http://www.singlefounder.com/the-day-the-microisv-movement-d...
Some people have difficulty falling asleep, and other people have trouble staying asleep (often waking up really early in the morning). The latter is much more common amongst older people, even though the amount of sleep they "need" has not decreased -- they just have a hard time staying asleep for long periods of time. In that scenario (when falling asleep is not the hard part), a nap is probably a pretty good idea.
>All mammals have pretty advanced control over their airways

once, to decide the issue for myself, i started Audacity and loaded in various animal recordings as well as human. The animal phrases (at least in the recordings what i had) were generally shorter, yet they pretty much consisted of the same modulations. The animals do have the tools of speech and they do have speech:

http://blogs.scientificamerican.com/running-ponies/catch-the...

"He discovered that this species' communication system is so advanced, not only do they have different warning calls depending on the type of predator - coyote, domestic dog, human, hawk - they also construct sentences describing what a particular predator looks like. So, "a medium, rectangle-shaped dog with yellow fur (we call them German shepherds) is approaching”, or “Here comes a tall human being wearing a green t-shirt who is also fat.” (I’m teasing, prairie dogs, I’m sure your sentences sound much more elegant.)

By showing captive prairie dogs a number of simple silhouetted shapes such as triangles, circles and squares, Slobodchikoff also determined that they can come up with new calls to communicate to each other about things they’ve never seen before."
oh very nice.. one sec while I check the EULA of this binary.
lol and my first name is "Aaron" thank my parents.
Overdrafting and dropping water tables can cause the following:

- Land subsiding (sinking) which permanently lowers the capacity of the aquifer

- Chemical and pH composition changes, which can limit the usefulness of water drafted in the future

- Irreversible damage to native aquatic ecosystems, where the water table reaches the surface, which would have normally survived the drought.
I would argue that keeping things out of our airways is a little more advanced than just holding one's breath. Coughing up junk or dealing with water/swimming are common to mammals. Even swallowing requires coordination of the various parts beyond simply not breathing. I read a few years ago about a machine to allow paralyzed/comatose people to cough properly as this hugely reduces throat infections.
You mean that int32 is some sort of premature specialisation ? But if the machine you run that program has 15 bits int won't you have to rewrite part of the logic to deal with the new limit ?
> Would the yeast itself be considered illegal? How much would be, a few micrograms?

According to the report on the radio I heard this morning, the yeast itself is considered a controlled substance and its distribution is restricted in the same way as the drugs themselves.
It's not the same bug
Redux Release v1.0.0
I've wondered about that for years. I've always felt the body/mind heals/repairs itself during sleep.

It's too bad our economic society doesn't value sleep? Never understood having to arrive at most jobs before 10 a.m. I've had so many jobs that want employees there the job site at 7 a.m.? I show up, but I'm not truly working until afer 10 a.m., and I'm not the only one?

Then again--I have honestly never been a morning person.
I found that movie fascinating, but not for the science value (of which there was none). Above all else, two things amazed me:

1. That people thought chimps could use complex language. If they have the capability, why don't they use it in the wild? It'd be a huge advantage.

2. That no human was killed by Nim. Everyone managed to emerge alive (though not unscathed).

Gwern's review of Project Nim echoes my sentiments: http://www.gwern.net/newsletter/2015/03#filmtv
No, it's a bunk because it provides zero evidence but plenty of innuendos and unfounded allegations/accusations, and yes it's infinity more plausible a secret plan between the us gov and a us based media corporation than a reputable antivirus vendor like Kaspersky sabotaging its rivals.
Maybe that can be the 8 hours a day people do their office jobs.
There's an important fact to remember though: HFTs aren't really making markets.

HFTs make markets when markets least need liquidity, and they consume liquidity by fleeing the markets when it is most valuable.

As such, an HFT provides service when it is least valuable, and he doesn't just stop providing the service, he actively consumes the resources when they're most needed by society.

edit: downvote me if you like, but what I'm saying is absolutely true. HFTs consume liquidity as vol increases.
Uhm... these sort of tools are being developed and purchased all the time in black markets.

See http://krebsonsecurity.com/ for plenty of examples.
I think it might not be as bad as we imagine. All speedometers I've seen show both miles-per-hour and kilometers-per-hour, all thermostats I've seen have an option for switching to Celsius, all scales I've owned can display both pounds and kilograms (my current one even has an option for stones), all measuring cups I've seen in a long time have both systems displayed, etc. Even lumber wouldn't necessarily be a huge issue. After all, the "2 by 4" is actually 1.5" by 3.5", which equates to 38mm by 89mm. Would it be a huge deal to round that to 40mm by 90mm?

And, in any case, most people have a mobile phone now which can quickly do unit conversions. I really think it actually is feasible, if you could get the public behind it (good luck).
so let's use tons more memory and slow copies by value everywhere, not to mention backward coding, just because our generic UI framework is too generic?
I think a lot of innovation will spring from this too, and many others have said that once basic provisions like shelter, food, clean drinking water and telecoms are being met; all that's left to do is create art and innovate. Bigger budgets does not necessarily mean more innovation happens, it more often than not enfeebles somebody because they can't allocate the time to create anything. 9-5 culture is a bane for many artists who after work, have one solid hour of making art before they burn out and have to attend to other duties.
Probably would not be very useful. You would lose motor control of half of your body. When the left half of the brain sleeps, you would be a total mute as well.
This isn't what HFTs do.

One common HFT trick is exactly the opposite of what you wrote: they'll attempt to identify probable sellers of large blocks who are disguising their actions by using smaller blocks (they can identify this by measuring latency orders arrive at different exchanges), and then using knowledge of the order books at different exchanges to buy the large block at 10.00 from the seller who was already committed to sell and then sell it at 10.02 to the buyer who was already committed to buying.

They can do this because the institutional seller is using the NBBO based on the SIP, and they're watching 200micros ahead using direct feeds.
Dup of previous post: https://news.ycombinator.com/item?id=10062134
Or coffee.
PSkel offers a high-level API for programming for heterogeneous parallel architectures, including both multi-core CPUs and GPUs.

PSkel is a high-performance framework for parallel skeletons. Using a high-level abstraction for parallel skeletons, PSkel releases the programmer from the responsibility of writing boiler-plate code for parallel programming in heterogeneous architectures, e.g., explicit synchronization and data exchanges between GPU memory and main memory. Furthermore, the framework translates the abstractions described using its application programming interface (API) into lowlevel C++ code compatible with Intel TBB, OpenMP and NVIDIA CUDA. PSkel's API is mainly based on a C++ template library that implements parallel skeletons and provides useful constructs for developing parallel applications. The framework provides an API for manipulating input and output data; specifying stencil computations; encapsulating memory management, computations, and runtime details.
This came out a little while ago, but presaged the increasing understanding we have of the brain's lymphatic system.
no one but Oracle's own fault.

Agreed, but how much damage to society can the Oracle-asaurus do while thrashing around in the tarpit before it dies?

Currently, the copyright laws seem to benefit large, deep pocket players, not society as a whole. Oracle-the-Corporation can certainly use copyright law to inflict a lot of damage on everyone else while it spoils its own reputation and poisons markets & etc.
I believe it. We supported several shareware products during the period described in the article and most of our sharewares were at some point tagged as malware by antivirus programs - Norton Antivirus, most notably, but never by Kaspersky.

The signatures that triggered it were in 3rd party installer code that we used. If you think of it, it is a perfect attack method as by targeting shared installer many products were made false positive with little effort.
Thank you for this feedback! Adding to what Nacin said about our involvement. We have started work in this space, and care deeply about the electronic health record systems at both the DOD and VA, and connecting critical information between the two systems, as well as data exchange with private sector (downtown). Also, major kudos to being a Navy doc who understands what it means to upgrade Python!
Sleep has been shown to be a factor in learning, so functions that happen during sleep could be related to learning disabilities. So yeah, being able to induce this state might be very useful for treating some conditions.
This Slate article is worth a read, concerning the science involving Koko.

"Critics also allege that the abilities of apes like Koko and Kanzi are overstated by their loving caregivers. Readers with pets may recognize this temptation; we can’t help but attribute intelligence to creatures we know so well."

http://www.slate.com/articles/health_and_science/science/201...
I'd rather not bash my undergrad, but suffice to say I tutored intro linear algebra and was very comfortable with eigenvalues, eigenvectors, Gaussian elimination, and that kind of stuff. What was tricky in 224d was taking the gradients with respect to specific components of a matrix. In the end you get comfortable with what the result should look like, but if you actually write the matrix indices down, it's quite hairy (mostly tensor product(s) that can be rewritten as matrix outer products).
Could the SSE2 non-temporal instructions used in this (genius) strategy be used to exploit RowHammer in DDR2, avoiding the known "dangerous" CLFLUSH?

This seems like an obvious approach but the only reference to it I can find is in this Google Native Client issue, with no indication of whether or not it's successful: https://code.google.com/p/nativeclient/issues/detail?id=3970
I think we can trust a professor of neurosurgery at the University of Rochester not to be spouting woo in her study in _Science_.
This seems like a good start towards a symbolic math library like SymPy[0] for JavaScript. There's lots of cool client-side applications for such a library, something like Mathway[1] or WolframAlpha[2] that doesn't need to hit a server to do the symbolic computation.

[0] http://www.sympy.org/

[1] https://mathway.com/

[2] http://www.wolframalpha.com/
I am guessing his intentions were "You must have a cofounder to have better odds of surviving"?.
I always use the marriage analogy for finding a cofounder. I love being married and would recommend it to other folks if they find the right person, but wouldn't recommend it just for the heck of it.
I just read two really good neuroscience articles over on nautil.us. This stuff is super interesting.

http://nautil.us/issue/27/dark-matter/heres-why-your-brain-s...

http://nautil.us/issue/27/dark-matter/the-neurons-secret-par...
Dup of earlier post: https://news.ycombinator.com/item?id=10062134
There's really no benefit in switching for "everyday" things like temperature, speed limits, weight... it would be a huge expense that doesn't really have any payoff.

Where metric units are important, e.g. science and engineering, they are already used.
Pretty impressive stuff.

Here I thought it was going to be related to the power-spike decryption that's been show before(and can be hardened against by balancing bits flipped).