skysight-inc/HackerNews huggingface dataset:
I wonder if he had an encryption scheme that deleted the data in the event of n password failures and also something of legal value like bitcoins on the drive. Perhaps, then he could argue that knowingly attempting to log in using potentially incorrect passwords constitutes undue harm.
Law can be difficult because tiny nuances like this can sometimes matter. It's usually not because judges are too inept to comprehend the subject matter, but because they feel that the laws still on the books require them to undertake a stringent interpretation that has an effect most people would consider undesirable. In some highly technical cases, while judges can generally be taught the meaning, their unfamiliarity with the subject matter may cause them not to fully appreciate the effects and ramifications of some of their rulings.

Legal professionals tend to be technically minded and frequently accept conclusions that do not serve the interests of justice (except in the theoretical, abstract context of a perfectly-reflective, well-functioning republic) in order to comply with a strict reading of the text of the law.

That's a double-edged sword. It provides some protection against judges who would "legislate from the bench" (i.e., change the effects of the law based on their personal values instead of the values the community has codified through the legislature), but it also frequently restrains what would be considered a rational and fair implementation of the law in order to serve an ideological commitment to the particularities of wording.

Pretty much everything involved in attempting to create a generally applicable, fair legal system is a delicate balance. Too much familiarity with a subject and the judge can be accused of bias; too little and the judge may not understand the impact of their rulings. Too much commitment to legal wording can lead to some plainly undesirable conclusions where the real people and businesses before the judge become the collateral damage of a thought exercise, but insufficient commitment to implementing the community's values instead of one's own can lead to judges whose influence becomes oppressive or despotic. It comes down to needing judges with good judgment.

Constitutional reforms may be reasonable to modernize the system to be more responsive to the community's values and less dependent on the technicalities of outdated verbiage (the All Writs Act, which is referenced in this case, was codified into law 227 years ago), now that we live in an age of instant global communication and industrialism. Many such reforms could happen at the state level.
Anbody know what happend to Guido's contributions between 2008-2012?

Maybe he had kids. :P
When I was a physics TA, I used similar arguments with double derivatives show the connection between imaginary exponentials and sines/cosines.

For f(x)=e^(kx), double derivative d^2f/dx^2 = k^2 f(x)

Meanwhile for g(x)=sin(kx), d^2g/dx^2 = -k^2 g(x), and similarly for cosine.

So if k is imaginary, from a differential equations point of view, the exponential behaves exactly like a sine or cosine.

That shows the general idea, and further consideration of boundary conditions gives e^ix = cos(x) + isin(x).
Ask HN: How can I get investor intros in Berlin?
I will be in Berlin on Friday. How can I get investors to pitch my startup to? We are looking at the seed stage (50-75K) and I realize this is the hardest time to raise money. I have never raised money before.
The emergency spillway was used because the main one was already badly damaged so they shut it off. Now they're saying the damage to the emergency spillway is even worse than the main spillway so their turning the main spillway on full tilt to drain below the level the emergency spillway activates.

The thing is... They drained below the emergency spill way level many hours ago and it's off, but they're still running the heavily damaged main spillway at full tilt. I think it's a last ditch attempt to drain the lake before the dam fails, they just don't want to say it because everyone will panic
We do not claim that Rust is so much performant than C, we just showed that Rust can be as fast as Fortran or C. And indeed, there must be something wrong with the C implementation. Pull requests with improvements are welcome:

https://github.com/marblestation/benchmark-leapfrog
This whole emergency evacuation makes no sense to me. They cut the flow on the main spillway from 100,000 to 50,000 cubic feet per second to push water to the emergency spillway and it immediately started dangerously eroding at only 6,000 to 12,000 cfps. So they cranked the main spillway back up to 100,000 cfps and as I type this the water level has dropped back down well below the top and the erosion danger has passed. The damage on the main spillway looks severe but not at immediate emergency levels. But in the mean time they have unnecessarily caused panic among 180,000 people with no warning and generated national headlines. It just seems like a lot of overreaction.
Yay skew symmetric matrixes.

It's also fun to introduce e as a matrix operator for 3d rotations.

It's useful for kinematics and having compact representations for axis angle notations. It's a little far in my head but at some point it felt like a ha-ha moment with the Euler identity, in the "2d version".
the standard IEEE floating point uses a 'sign and magnitude' system. Negative numbers are basically made by flipping a single bit. I've been playing around with a number system that expresses real numbers as two's complement (like how integers work) - xor all your bits and then add one. In this system, 0 is -0 and the number that is weird for signed integers: 0b100000...0000 is infinity.

Now, there's an exponent and a fraction, too. I've been playing around with how to do these numbers with logic gates (and verilog!) and you can either two's complement the whole thing and work with absolute values, or you can keep the fraction part as a two's complement...

So I just redid multiplication using two's complemented fractions! And addition/subtraction too, which for floating points in general is significantly harder than multiplication. The nice thing about two's complemented floating points is you don't need separate algorithms for addition and subtraction; you can just do everything with one algorithm.
Would a serious competitor ever risk being sued by copying your code verbatim? Would copying just parts of your likely obfuscated codebase and trying to integrate it into their own codebase be more difficult than reverse engineering it?

I don't think it's something to worry about. Someone that is smart enough to steal and use your code is smart enough to use a legal alternative.
Free HD Video Conferencing Software With upto 10 People at a Time
> (2015)

I'd prefer if admins could change the link to a description of this mathematical fact that's more up to date, and fits the needs of me and my family in 2017.
GIF, PNG, JPG or SVG. Which One to Use?
Writing AST matchers for libclang
Ten-Year-old Applies to Be Cambridge Professor of Lego
If you have a set left that doesn't depend on the result of the problem still in computation you can do this, yes. Though in that case you don't actually have two sets, you have one set which is bigger than your core count. I simplified a bit before, but if you have more problems than cores your longest sub-problem shouldn't run longer than the time it takes you to compute all other sub-problems (i.e. that includes computing five sub-problems on one core while another core computes one longer problem) or you'll have to wait.

Unfortunately, I had this happen to a program of mine last year. All other tasks were long done but one kept running and running. The run time of the program escalated to hours with the first few minutes being marked by high usage of the system and then only one core in use, while everything else had to wait. It sucked.
The damage to the main spillway is extreme. Look at the pictures, it's more of a semi controlled waterfall at this point. If erosion moves upstream on the spillway, which it eventually will, once it reaches the gates they will need to stop the spillway or risk the dam itself.

Their emergency spillway is already unusable, so this means just get everyone out and wait for the dam to blow once the main spillway erodes too far back
If the emergency spillway goes, that's 30ish lake-feet of water that would drain uncontrolled. That would likely wipe out a few towns down the river.

I think gp was getting to the fact that the main spillway is eroding as well, and it could reach a point where it was unusable. In that case, with significant rainfall expected in the next week and a good deal of snow melt to follow, there could be huge amount of water coming into the basin with no way to control the outflow, which could result in much worse flooding.

Hopefully that all can still be avoided. It's a bit dramatic to say it's inevitable. It's a possible scenario, but it's also possible the right plan avoids it.
GOVERNMENT!! FUCK YEA!!
When can we expect this in production?
Alternatively if you don't like coordinates, you may notice that multiplication by a unit complex number is linear and preserves the complex norm (i.e. modulus), so it defines an orthogonal transformation of the plane.

Topologically, unit complex numbers are the unit circle which is connected, and 1 is part of this circle so all of these transformations must have determinant 1: these are rotations.

No Euler formula.
Oh dear - just realized pressreader does not make it clear at all what they do on their website. They give online access to 5.000 print publications from all over the world and charge either per single issue (0.99£ in my case), or 29.99£ per month to access all of it. So it seems to be pretty close to what you are looking for. https://en.wikipedia.org/wiki/PressReader

Downside: A lot of the publications are insignificant/ very similar to each other. They do have some good ones like the Guardian, but I'm still missing some personal favourites, so haven't joined yet.
This isn't obviously true (nor obviously false) to me.

If airbnb added a unique index to the SSN (or a two-column index with SSN and locality) would you consider that a TOS violation?
From what I gathered the main spillway is quite damaged with a ~ 200' x 30' eroded hole in the center, potentially eroding into the supporting hill. It was a problem even before they doubled the outflow to 100,000cfs yesterday which I believe is still the current flow.

They want to get the lake down 50' to shutoff the spillway and assess repairs, but even at the current (high) release rate it appears they can only lower max ~8'/day, which is a problem because heavy rains return on Wednesday.

Let alone the emergency spillway, the main one's at risk too.
I've seen articles about people using CGI as bait to fight it.
I'd love to get a source on this info. I've been looking for info on the geology of the exact area and the dam construction to assess this exact point.

Where did you find the info on the area being solid rock?

That would go a long way to giving an idea as to how bad any increased failure might be.
> they have unnecessarily caused panic among 180,000 people

Hindsight is 20/20. If the dam had failed, people would be saying "they unnecessarily killed 180,000 people because they were too lazy and politically timid to order an evacuation."

It's like tuning sensitivity vs. specificity in medical tests. In this case the cost of a false negative (thousands of deaths) is a lot higher than the cost of a false positive (a few days of disruption). So the threshold is set low so as to minimize the total expected cost, summing probability of outcome * cost to society. Perhaps counterintuitively, the goal is not to minimize the odds of being wrong.

We should expect to see more false positives than false negatives. If it were any other way, the system would be working sub-optimally.
They didn't (and still don't) know the full extent of the damage to the concrete emergency spillway structure. If it failed, the areas evacuated would flood. It's still possible it might fail, they really won't know until morning.
London city airport is a tiny airport, it would be terrible if this was a decent size.

It's bad enough having Heathrow where it is, with all the planes over London.

One good thing about the "Boris" island idea was that planes wouldn't have had to fly over London itself, which would have probably helped noise and pollution.
> The article is going over a paper[0] that asks what would happen to house prices if houses were treated as disposable consumer goods instead of a means of storing wealth.

What, exactly, do they plan on changing?

A house costs a relatively large amount of money to build, and is usually purchased by people without a lot of savings, hence the appearance of mortgages/MBSs. The consequence is that housing becomes a capital good, with an associated yield, and, as with all other capital goods, its price will rise while the long term interest rate is falling, as it has been for the past ~35 years.

As far as I can see, there's not much we can do about this, unless we ban mortgages. And I doubt that's going to happen, as younger people really do need a way to finance the purchase of a house with only an income.
Aging is an illness, a degenerative process for which evolution has optimized against by reproducing before it takes its toll (death). It is entropy maximizing, dissolving the body. Those processes can be reverted by correctly directing outside energy into the system, in order to achieve reordering (reduce entropy); we just need to find the proper way to do it.

Once we find the root cause of aging, and we devise a cure for it, we will be surprised at why it took so long to understand such a simple problem. The same way we are surprised to hear that people 200 years ago were convinced that heavier-than-air objects could not fly, or that trains traveling at high speed (50 Km/h) would cause irreparable damage to the body.
Almost all underground electronic labels offer their releases digitally, they just don't publish to steaming services.
I get the feeling the dam is likely doomed and they're trying to drain the lake as much as possible to decrease the force of a break
Should HTML have an h element?
If you didn't request it, your node won't hold decryption keys to the files.

Might not help him if they believe that the encrypted keyless fragments is enough (which would be a horrible legal argument).
I don't reside in the USA and I don't know the US law. After reading a certain amount of comments seems that the heart of the discussion is the fifth emendament. I agree that if the 5th emendament protects you from giving the combination of a safe logically follows that the same applies for encription passwords. But I don't agree with the root of this argumentation: if a court has a valid reason to think that a safe contains evidence that is relevant for the lawsuit, why should make any difference if the safe is locked with a physical key or with a combination? Somebody who has a different opinion could please explain me his point?
That stream has now ended, but you can still see the live webcam feed:

https://www.youtube.com/watch?v=hSaAE6MbKE0

Not that you can see much as it's dark...
Can you please post some links to those things?

I haven't seen any good solutions yet.
Have you seen "Stanford Seminar: Beyond Floating Point: Next Generation Computer Arithmetic"?

https://www.youtube.com/watch?v=aP0Y1uAA-2Y
Interesting, I didn't think of the obvious!. I may well give this a try.
I think it is right to think in a american context here because no other western country would hold someone for so long just because he probably forgot his password. This is obviously a american issue.
Why is this even a story? I've had the same thing happen to multiple times coming into the UK. I'm also white and British if that makes any difference.
The usual sensationalistic headline, but the gist of the story is crystal clear: ads and writing is an inherent and probably impossible-to-solve conflict of interest.

The media that won't change their business model during the next couple of years will probably be extremely diminished in quality, and thus influence. Can't wait.

(And no, the latest fad of "native advertising", with ads disguising as articles, is not the answer. Hopefully this will fall to the wayside as more people learn critical thinking and sourcing [I don't see much evidence for this yet but I'm very hopeful ;) ])

But, the risk of losing the cadre of serious journalists at the large outlets that today are struggling, and who rightfully demand a good salary for their critical work (as members of the fourth estate), is a real one which needs to be solved. If Medium can be a part of forging a new way ahead, then more power to Ev. Haters always gonna hate, often without much thought, self-reflection, or humility.
The concrete spillway is the main spillway. The emergency spillway is a concrete lip draining onto an unpaved hillside. It was partly because of the damage to the main spillway that they allowed the lake level to rise to the level of the emergency spillway, but when it appeared to be eroding alarmingly quickly, they opened the main spillway 100% in spite of knowing the lower half was already severely damaged.
If the bots and sockpuppet accounts on twitter are any indication of sockpuppetry among public internet forums than it's safe to assume there's a significant and non-trivial amount of postings coming from agenda pushing organizations.
Code Challenge 06 – When does PyPI reach 100K packages?
Here we have an example of a forceful, totalitarian state. Where they cannot keep up their laws due to technological progress, they threaten you with violence and boredom (boredom as in sitting in a cage as long as you refuse to comply). In communist era Eastern Europe, secret police used to send in beautiful prostitutes and/or agents to deal with people held in captivity. Get a man to erect his penis. When that happened, strong men stormed the room, grabbed the victim, and inserted a glass rod into his penis. Then smashed it. I would not like to go into details on what they did to women. You can look that up.

Land of the Free - as long as you do not encrypt your shit, that is
Well argued. Thank you for sharing your opinions on what is obviously a very complex issue.
I don't know. However, construction projects with ridiculous levels of corruption are not unknown in America.(1)

1 - http://www.workers.org/2006/us/big-dig-0831/
> Do we get to choose to live in a world where that isn't the case?

Kind of. I do my best to avoid any relation with the U.S. including avoiding visiting it, taking up a job or incoorperate there. So even thought i am monitored by some shitty govs, there is no legal way that it means anything.
Replaced by what?
How to fix rounded shoulders
Indeed, 13 times more dams than France (who prides itself for 12% hydroelectricity), while USA is only 5 times bigger in population. China has the most number of large dams in the world: More than twice the USA, for 4x population.

http://www.icold-cigb.org/article/GB/world_register/general_...
I was asking myself the same question. Raymond Smullyan? Redesign?
A bill to allow consumers to control their own devices is pending in Congress
That may be so. But it's undisputed (aside from most keto blogs) that an increase in serum cholesterol and especially LDL-C increases the risk of heart disease.

Studies show that you generally need a level of < 150 mg/dL to avoid heart disease. That's quite a bit below the average "normal" level. But today's average is NOT physiologically optimal.
Right. That concrete lip is holding back about 30 feet of water, which is what they feared could be released if it collapsed.
For me what made it clicked is realizing that complex numbers are 2D matrices: z = x + i y = [[x -y][y x]].

So really we should be writing z = x * [[1 0][0 1]] + y * [[0 -1][1 0]], but since it's tedious we just call 1 == [[1 0] [0 1]] the 2x2 identity matrix and i == [[0 -1][1 0]], and check that i^2 = -1.

Then no more magical i number, the complex product can be derived from the matrix product, the exponential becomes the 2x2 matrix exponential, and so on.
Yeah, I think this provides a useful analogy at the very least. The cost of new features increases over time (it is much easier to add/change/swap out features at an earlier point). Razing something to the ground and starting again can often produce better systems, but at that point the external world depends upong the systems already in place, so any efficiency you gain by reconstructing is bled away almost immediately. Coupled to that is this idea that automation always simplifies, make things more efficient. Whereas in practise it often does the opposite: it works well _if_ you can control the environment, simplify the interface to the external world. But reality isn't that clean; in education, health, infrastructure etc the external world becomes so complex that only aspects of it can be controlled, thus you only get very partial, focussed solutions that are sold as complete solutions (and fail). Maybe..
I really don't understand how they would ever enforce the "social media accounts." It's pretty easy to just have two facebook and twitter accounts. If it becomes a problem everyone affected would have multiple accounts.
Larry Niven's Inconstant Moon from the first line of the article https://en.m.wikipedia.org/wiki/Inconstant_Moon

I read it many years ago, maybe in another collection.
Also, they have decent internet and little censoring in the country.
GCC produces almost 30% more instructions for the C version at -O3 level as opposed to -O2.

Clang produces practically the same between the two levels.

On OS X, so can't test if this actually makes a performance difference.
Apache SINGA: A distributed deep learning platform
Not really but I looked at my windshield a lot. Where have all the insects gone? The decline in insect biomass is insane!
http://e360.yale.edu/features/insect_numbers_declining_why_i...
The spillway is kind of "around the corner" from the main dam, so I would guess the latter is probably not "doomed," at least at this point.

A realistic disaster scenario would be if the erosion retreats all the way back to the main spillway gates, or if it undermines the emergency spillway. The berm there would then fail, which holds back maybe 15 or 20 feet of lake altitude. A volume of water equal to that depth times the surface area of the lake would then exit over the hillside, completely uncontrolled. That would be more than enough to cause a serious downstream disaster.

The water flows would be very high (~a million CFS? total guess) which would cause even more severe erosion on that hillside. At that point the main dam might be at risk if the erosion traveled far enough laterally.
I love the Khan Academy video on this:

https://www.youtube.com/watch?v=mgNtPOgFje0

Sal's enthusiasm at the end is contagious!
And they will still be shit, until it's too hard to find anyone to collaborate on your projects.
My Best Year Yet – Meditations, Fields and Fences
surely this must be crop-specific
FBI tried but didn't get their will through
All very nice, but then calling this
"SipHash-2-4 (fast hash for hash tables and similar data structures)" for the slowest hash function in existence is again the product of false marketing.
There's no question that the Tesla Model 3 will launch on schedule in 2017
One of the most remarkable snacks I've ever had was served on a trawler in the North Sea - a large number of butteries (pastries from the North East of Scotland which, as the name suggests, are made with a large amount of butter) layered in a deep baking tray and covered with a couple of pounds of salted butter and then baked until nice and hot.

Possibly the most delicious thing I have ever consumed NB (it was shared among the crew of 6 or so).