skysight-inc/HackerNews huggingface dataset:
Right. Correct me if I am wrong, but that causes inflation. The end result is we all pay for it either way.
Have you tried to sell millions of dollars worth of bitcoin to USD? As soon as there is a down day the exchanges shutdown and stop people from trying to withdraw. The money to cash out billions doesn't exist. All these headlines of founders being billionaires is false. $1.5 billion fake USD pumped crypto. Good luck to anyone holding millions of dollars trying to cash out when the market turns downward. This is adult musical chairs. There will be millions of bag holders and rich exchange criminals.
It's easier than ever to sell for other cryptocurrencies, including Tethers. In a fire, though, it's not the size of the trading floor that matters, but the size of the exits.
> If we could solve off-target side effects using AI, then we'd be in a whole different ballgame. Having banged my head against it for a while, I think it is possible, but will take a huge amount of investment.

Can you talk more about what you've been thinking about here?
For the people who hadn't had their coffee yet:

http://knowyourmeme.com/memes/navy-seal-copypasta?full=1
And screw everyone else in the process...
TLDR -- there is nothing so special about Lisp (in terms of metaprogramming) other than a syntax that is easy to parse. All languages have tools to manipulate code at the source code level, but people rarely use them. These guys did.
This comment could be useful if you'd explain why, but as it stands, it's just a shallow dismissal of the kind we're hoping to avoid here. Please don't post like that.

If, however, you'd like to neutrally explain the point (neutrally = without snark or spin), so we could all learn something, that would be great.

https://news.ycombinator.com/newsguidelines.html
The screen cap is dominated by three glamour shots of women. It's not like it just happens to contain a woman getting on a train or ordering a coffee, among other images.
(1) I don't think this is necessarily the right place to ask this. HN is not particularly known for mathematics, it's better to ask at a math focused site like https://math.stackexchange.com/

(2) My generic answer to the question is - NO. You can be a good quant, engineer, etc. without having the knowledge of how to prove the theorems in a real analysis undergraduate course. However, knowing the proofs may be helpful if you decide you want to do write theoretical research papers in a particular area, even just for the sake of "mathematical maturity".
> he and Dr. Brooks approached the problem of inverse kinematics very differently

Could you expand on this? Thanks.

I like this essay, it seems to condense a lot of his thinking over some time.
Wouldn't that just result in the videos being taken down/demonetized?

Not sure how this would harm youtube, wouldn't you just end up silencing yourself?

Baiting fraudulent DMCA claims and then countersuing for lost revenue COULD work, but would likely require more legal fees than would be 'profitable'.
Only if you wear gloves while using it and shake it after finishing a calculation.
There's almost as big a racket around venues and concert promoters as there was with RIAA and it's ilk (it's basically a Ticketmaster/LiveNation monopoly in the U.S.), but artists do get a larger cut (harder to scam them when they see the full stadium I guess).

I've seen quotes about 60% of gross for artists with the rest being split between the ticket processor, promoter, taxes, etc. That 60% has to cover the artists' costs (not the venue but roadies, sound engineers, lighting crew, catering, tour manager, backing singers, extra musicians, dancers and so on

https://www.theguardian.com/music/2017/jan/30/where-does-con...

http://www.wisebread.com/how-much-a-breakdown-of-concert-tic...
Me too. Finally I understand how the leakage works: no actual reading of kernel memory is taking place.

Instead, the read-ahead/speculative logic causes one of two addresses in user space to be read, and thus placed in the cache. So, by reading both of them, and checking the time it took, the exploit can indirectly determine one bit (0 or 1) of kernel memory. Scary!
Can anyone recommend analysis textbooks suitable for self study?
Losing Chess has been solved
2TB disk? If you use a real Z80, you can probably run that in append-only mode for the rest of your life. Writing full time at 100kB/s would produce about 9GB/day, filling up that disk in about 6 years. Producing and writing 100kB/s isn’t realistic for a Z80 at <10MHz, though (10 cycles/byte seems to be the best for memcpy, and you would need to generate data, and drive that disk, too. See https://retrocomputing.stackexchange.com/questions/4744/how-...)
I get recruitment spam from Elsevier recruiters a lot, I wasn't entirely sure of what they did (at University we had subscriptions to IEEE and ACM and another one I can't recall the name of for CS stuff) so the name wasn't familiar to me.

I'm still not enitirely sure what value they offer?
This is interesting as slavery is something that ostensibly has no room for shades of gray. So let's try it. Can you justify to me why you believe slavery is wrong? And to be clear, I am not suggesting that it is not - but rather I think you'll find that creating completely coherent arguments for why it is - without exception, is not as easy as you would think.
I guess I don't know much about Australia. Why were you no longer comfortable there and what are humans doing to it??
How are you supposed to get entropy into a system with no (good for RNG) inputs and no sources of noise? (think: embedded)
How to disconnect from technology just a little bit
... and White win with 1. e3
you are engaging in semantics and sophistry. It can be objectively determined that cows are significantly less intelligent than humans, or even african grey parrots, or dolphins. I do not want to eat species that, as a species, exhibit intelligence level that is similar to human intelligence. The reason i wouldn't eat a dumb human is because I don't want to perform an intelligence test on every parrot or every human. Aggregate knowledge about the species is enough knowledge. You may say this is arbitrary, but to tell me I shouldn't eat a cow is even more arbitrary.
Also, discussing whether or not I would eat a human is silly because I can't go to the supermarket and buy human flesh. So, let's keep this discussion away from meaningless hypotheticals.
I don't know if you are joking, but the Magna Charter was a deal worked out between a bunch of feudal lords and their king. It represents everything that we are trying to get away from in the modern era.

As to UNHCR, obviously none of us would ever suggest taking someone's property arbitrarily. What I am suggesting is a tax, which would work just like any other tax, and would be just as lawful as every other tax that you pay.
It only causes inflation if (A) the currency distribution was already providing adequate aggregate buying power for existing supply, (B) growth in real wealth and productivity isn't happening along with the increase in currency, and (C) taxes aren't increased to offset the new money.
Redux Fundamentals: creating and using stores
This is great, but remember that it covers Meltdown, not Spectre. Meltdown is the more immediate disaster, but Spectre is the more batshit vulnerability. You really want to get your head around:

* The branch target injection variant of Spectre if you want to get a sense of how amazing this vulnerability is: you can spoof the branch predictor to trick a target process into running arbitrary code in its address space! This is crazy!

* The misprediction variant of Spectre if you want to get a hopeless feeling in the pit of your stomach, since the implications of mispredict are that certain kinds of programs are riddled with a new kind of side channel we didn't really grok until last week, and no upcoming microcode update seems to be in the offing.

You could probably use the same Python conceit to illustrate the other two attacks; someone might take a crack at that.

(I'm not disputing that the R-Pi's aren't vulnerable to Spectre).
> Controversial opinion: Hardware Random Number Generators don't solve any real problem.

Good one; how often has encryption (of any sort) been broken due to not enough randomness? I mean I'm a noob but I can imagine that it'd only become a risk over communications that were tracked for a very long time. or something.
In the example about picking a random 3-d vector, it seems like the "draw components from a Gaussian distribution" method is the most common, but I don't really understand why you can't just pick two angles ([0, pi) and [0, 2pi) respectively) from a uniform distribution and interpret those as spherical coordinates on a unit sphere.

Given that the "draw from a Gaussian and normalize" seems like the hard way to do it and also is the only one anyone is suggesting, I assume I'm missing something. Anyone know what the problem is?
You are right this is not a BOLD signal.

I was hoping the brain was able somehow to vaso-constrict to direct its oxygen supply toward some region and that we could observe that. But from what I'm picking from you is that it's more like there is fluid everywhere, and cells are just consuming more or less kind of an open-buffet (versus cells waiting at the table and asking for more or less food).

^^found your paper without paywall but haven't read it yet [http://wexler.free.fr/library/files/logothetis%20(2001)%20ne...]
With two friends, I can quadruple that amount.

Just stand in a circle, and each person passes a pretty pebble to their left, and an IOU for $223 trillion to their right...
I personally think "the price of cloud computing just went up 5-10%" is "a big deal" and not some niche scenario.
> Let's look at this from the standpoint of Pascal's Wager.

The problem with Pascal's Wager in most applications, including this one, is the “if X does Y...” can trivially be flipped to “if not-X does Y...” or, in some cases, “if not-X does Z...” where Z has equally negative consequences to Y).

Mostly, the Pascal's Wager structure is a template for flimsy rationalizations of pre-existing preferences or beliefs.
Sparc didn't get out of order until T4 unless I'm mistaken. (Assuming speculative execution was added about the same time.)
Postmark is free up to 100 mails / month. But mail deliverability issues are a hell that I'm happy to pay a small fee to avoid.
If you require applicants to pass five independent tests that have 60% accuracy (e.g., interview, polygraph, family/friend interviews, recommendations, criminal record), good applicants are more than 7 times more likely to pass than bad applicants.
Indeed, most of our important decisions are made by combining many weak pieces of evidence. Even if some other tests are more accurate, additional less-accurate tests can easily be worth running if their costs are modest.

Again, this is not an argument that the information provided by the polygraph actually passes a cost-benefit analysis in any particular case, it's just a criticism of the "all or nothing" mindset regarding accuracy that many folks have on this topic.
Is there a website like codepen or jsfiddle to build and show off generative art in javascript? Would be a fun little community.
I agree. URL changed from https://www.newyorker.com/culture/cultural-comment/the-libra..., which points to this.
Intel seems committed to write everywhere that their current processors work as intended and according to their specification. I'm not mad at them for Spectre, but Meltdown is ridiculous. If this is the quality of specification they want to reach, I'll use processors from another company that seems to have saner and less buggy specifications.
Federal government debt only, and only those countries that have their own fiat currencies. But yes.
Docker dying in 2018? Not a chance.

Smh
Great article, lots of things I've ranted about in the past, and lots of things I've never considered.

An apocryphal story from a former finance professor who taught me about MCMC: One of his former colleagues was working for a hedge fund in commodity futures markets, and he had developed a monte carlo model for trading in a very specific market that was working exceptionally well. Then one day it stopped working so well...returns cut by 1/2 of their original level. It wasn't a gradual decline, but rather one day it was one level and then overnight that changed. He eventually got poached by a competing hedge fund working in the same exact markets, and he found out that the reason his returns declined was because one of the mathematicians at his new company had almost perfectly reverse engineered his model by guessing his RNG seed, conveniently a number in the name of his former hedge fund.
OK fair enough, I didn't account for metadata. I'm gonna try some back of the envelope math, tell me if I go off the rails anywhere:

First, how many accounts are we talking about here? Between POTUS, VP, their spokespeople, cabinet members and official agency accounts, I'm going to assume the executive branch has about 50 accounts that ought to be archived. For congress, I think it's reasonable to archive each member's account and their spokesperson: 200 accounts for senate, 870 accounts for congress. In the interest of Fermi estimation (and because I'm not sure if every one of these people has an account) let's call it 1000 accounts.

I'm going to go with a mean of 10 tweets per day (again in the name of Fermi estimation).

With 280 characters + metadata, I'm going to round up to 1KB per tweet.

1000 accounts * 10 tweets/day * 1KB/tweet = ~10MB/day = ~3.65GB/year = ~40GB for the current lifetime of Twitter

If you're drinking from the firehose to archive tweets for a huge userbase (and feed them into models or perform semantic analysis) I could see this getting expensive and costly. If you're just try to archive tweets from a certain group of users and keep them on a disk (with a tarball or zip file released quarterly) it feels a bit more doable.

That said, this little thought exercise has gotten me thinking a lot more about what I expect of the LoC and the National Archives. I'd be happy with a "cold storage" record of the tweets being preserved for posterity, but they may see their mission as making the tweets into a tagged searchable collection. I also think there are arguments to be had about how many people's account really need to be archived (perhaps states could handle archiving their own reps).

In the end I guess I'm cool with the LoC scaling back collection as long as they're transparent about how they're doing it.
What exactly do you mean by abusive?
How do you mean? The price is for your whole account, not individual files. Plus, too expensive compared to what? :P
So, they solve the problem of having to ensure those issues are not present?

Also, it's not exactly unheard of of "good" prngs having bugs making them bad.
You probably already know, but there are teams with the national library of medicine that work specifically on natural language processing within the scope of pubmed, but also on new ways to get to the publications. I almost interned there for a summer, very fascinating stuff.
There really should be penalties for filing an incorrect complaint.
I believe that you now know that every time you do this(comparing passwords as Strings) a puppy dies!
For cryptographic applications you generally just hash every input you have together with secure hash function.

Somewhat philosophical corollary to that is that when you have hash function that is secure enough for your application you can just build CSPRNG from it and use small (eg. 128 or 256 bit) seed and you have no need for hardware RNG.
All exchanges and cryptocoins in same place!
Well, I really was hoping to get some good faith feedback - even though I had a definite position - in a topic that can lapse into a more adversarial stances. To be fair, I was really happy at those who took the time to reply, and ... paraphrasing Taylor, downvoters gonna downvote. I did get at least 4 downvotes, for the record. I'll say no more of it. It's an interesting meta discussion for me, but this is off topic/being a bad guest in posting guideline adherence enough already.
One doesn't have to be "dumb" to be in some danger from the fangjectors.

A friend of mine was driving around his property and found the track blocked by a fallen tree. He started pulling branches off the road and trod on a tiger snake in the grass. He was bitten and survived after administration of anti-venom. He wasn't doing anything particularly dumb and probably 99.9% of the time wouldn't have trodden on a snake.

I used to work on a farm. One day after moving the irrigation sprays I went to the well to turn the pump on. Around the well was about a 3 foot high concrete wall, maybe 3 inches wide. I sat on the edge of the wall to wait until the pressure came up and sprays started working. As I turned to leave I happened to notice on the wall, about 30cm from my hand, was a red-bellied black snake sunning itself. Close call.

I remember as a child, my mother chasing brown snakes out of our front garden so they wouldn't be a danger to us children.

If you're outside of a major urban environment in Australia, snakes are around. One just needs to be a bit careful.
It depends.

If the debt being repaid is in local (national) currency, perhaps but less likely than if it is in foreign currency.

If it is all local, then it becomes a question of whether the nation has the production capacity and investment opportunities to absorb the additional currency in circulation.

If it is all most mostly foreign, the exchange rate can go haywire leading to any imports exploding in price. And if the nation then is relying on imports for some stable or other, things can go very badly very quickly.
Ah, Germany, or how to use public resources to protect private IP. The French decided it's not worth their time. There are more important issues for the police to pursue, like organized crime.
Like “all installations on AWS, GCE, DO and so on are affected? Even semi-private clouds might need mitigations since people rely on VMs as a security boundary. So yes, this is a big deal.
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I think you are magical and great.
HWRNGs make sense to me as a source of scalable boot-time entropy for hypervisors to distribute to their guests. But, in all likelihood, one HWRNG is good enough to feed the concurrent requests of an entire datacenter’s worth of hypervisors.
Zero-overhead scalable machine learning
They use net returns (after operating costs etc., p.31), and provide an argument why leverage doesn't make a large difference (p. 40).
Probably just an effect of longer shot lengths (some modern action films are under two seconds average shot length) and not being able to color-correct the hell out of every individual scene separately. Both made possible (or practical, anyway) by digital editing. Without them films tend to be more naturalistic. And like your average stage play they leave you space to think about what you're watching.

You want actually stage-like films you have to go back farther. Wide shots galore, with stage-style blocking. Check out the opening scene of the original Ocean's 11.
I'm not really sure by what you mean "OK with that." I'm perfectly fine with people having views I find detestable. Going further there, I suspect if we were all 100% honest then any two people could find at least some reason to find the other detestable.
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No, one party's debt is still another's savings basically, even with a fiat currency. These caveats apply:

* If we're talking private debt or debt from governments other than the fiat-issuer level then there's some risk of default which means the savings could be lost.

* Without a gold standard, increase in fiat currency can diminish savings through inflation.

But simply: savings in gold ≠ savings in fiat currency, but they are both savings still.
Does anyone know of a tool that draws graphs that obey angular constraints? I made a tool that drew acyclic graphs this way [1] but for graphs containing cycles it suddenly becomes a nonlinear problem that (I think) needs CAD-style geometric constraint solving. I plan to implement this sort of thing in the tool eventually, but it'd be easier if there was something already available.

[1] https://github.com/SeanDS/optivis
which do you consider brilliant?
Here’s the latest Filecoin update: https://filecoin.io/blog/update-2017-q4/
Ask HN: What is a frustrating paid software/service that you/your company use?
I'm curious to hear about what paid software or service is causing frustration among users - to the point that you are seriously considering alternatives.

I'll pick a random idea from here that sounds interesting, feasible, and build an alternative.

Edit: If it would be uncouth for you to name a specific software/service, even learning what it is supposed to do, why it is a frustrating experience, and the price tag would be very helpful.
I don't know what you mean by "first public disclosure" but these mitigations were already disclosed yesterday when Linux patch with their support was submitted:
https://lkml.org/lkml/2018/1/4/615
Numerical Linear Algebra by Trefethen and Bau.
No, I got that from reading Kubrik's own comments on the meaning of the film. I ignore speculations on what an artist means, it's a waste of time when I can just find out from the artist himself. (there's some interview of him online somewhere where he discussed this.)

The sound and effects are not perfect for today. They are perfect for the 60s. Even by the 80s I could see the effects were starting to look pretty dated.

Every time something takes me out of the experience of the movie, either it should have been edited out, or done better. In the case of 2001, it's an old movie. I am old, and I am a movie connoisseur.

I wanted to enjoy it with my family like I did when I was younger. But the effects look down right silly. And in a serious movie, you can't have silly looking effects. Compare how the movie gravity dealt with zero-G, it makes 2001 look like high school kids made it now.

The one thing that stood out, was there use of tablet computers, that was brilliant, and was done with rear projection, so it looked great even today. The rotating and curved floors are truly inspired work, but the music score is meaningless today, even to me, who grew up with classical music.

If the art of film making can't improve on something made in the 60s, then it couldn't have improved on something from the 30s, and we know neither is true. So, 2001 could be remade, just not by hollywood bozos.

The story is of a profound mystery, but it's not told from the perspective we have today of putting someone inside the mystery, it's told from an odd 3rd party perspective popular in older cinema. Compare how you felt in Interstellar and Gravity, __you__ were there. It was you who is in danger and in risk.

In 2001, the characters were in the mystery, and we were simply observers. Applying modern storying telling techniques (that Kubrik helped pioneer) would dramatically improve the enjoyability of the 2001 story for us today.

Edit: I wanted to add that the scene where he's rebooting/working on the computer (HAL), all he does is push in clear plastic blocks. That is just stupid. (He even just pushed them in IN ORDER, wth?) I work on computers, and he didn't even mildly pretend to do anything at all technical. I think this was pure laziness on the film makers part. They knew computers were complicated back then, and to make them seem so stupidly simple that you could find an error by looking and a sheet of clear plastic with no markings or anything? It fools kids and ignorant people, but anyone with any technical knowledge, it rips you out of the experience. Another reason to update it, or at least admit it is not as effective an experience as it once was. A classic doesn't mean it's good now, it means it was good at one time.
AI in X is overhyped. For all X.