skysight-inc/HackerNews huggingface dataset:
Parking garage at my office park doesn’t even have open-air spaces on the top floor: the deck is covered with solar panels.
The sad and bitter truth: as the anecdotal Silicon Valley startup CEO is a closet right leaning Republican donor, and with the amount of military money up for grabs, I'm surprised to not see a flurry of startups "disrupting" prisons yet /0.5s
> In case it goes sideways, he just does not care much.

I don't think it's that. In some video online it covers Alex getting a brain scan, to determine if the part responsible for fear is maybe broken. It turned out that it wasn't, it was just that Alex was such an experienced climber that he knows with full confidence what he has to do and what his limitations are. Him failing doesn't really factor in the calculus of his mind as a possibility.
> The reason being, anything s3cmd can do, rclone can do better. Right ?

But is it better than s5cmd?
and the 0.0003960339% of the GDP

so what :)
Those are all birds that have been able to adapt very well to urban life. For each one of those, there are scores that haven't been able to do so.
Hisense A5 is a single screen E Ink Phone
I don't see how this is any different than Cet5 cables made when 100Base-TX was the standard and now work with 1000Base-T at 10x the speed. The cable was marketed based on the available standards at the time and now theres faster standards.
I agree whole heartedly. I've been following their work for some time now. The collaborative work coming from around the world is great to see.
When I used to regularly visit Bristol, I got to learn quite a few that used to commute to London from Bristol and Bath surrounding areas.
> What about this particular instance of them being wrong annoys you so?

While I can't speak for the person to whom you're replying, I can tell you why it is annoying to me, and that is very simple. In this thread there are basically two kinds of posts:

1. Posts about the physics of why solar on cars is basically a bad idea (or at least a massive waste of money in the face of much better alternatives).

2. "Yes, but have you tried turning your head sideways and squinting at it like this [...]"

For some reason, solar-on-cars brings out the #2 in many otherwise smart people, and it's extremely tiresome to constantly slap down the nonsense. Because, I think, they really, really, really want to believe it can work.

> People are wrong about stuff all the time. Often more committed to worse ideas than this.

Yes, but when you show them why those ideas can't work, using numbers and science, they abandon those ideas.
Interesting to see the first woman on that list is at #21 (Geraldine Chaplin).
Is there an easy way to adapt the algorithm to get the cards drawn in a random order? The article says "it’s easy to randomize the order after the fact" but if we can't store them in memory then that's a no-go.
> Is it the CEO? They are unlikely to know enough about French taxation.

That's besides the point. If you want to operate in a certain country, you need to - as a business - familiarize yourself with their laws.

The CEO is ultimately responsible for ensuring the company abides the law. If the CEO doesn't know enough about French taxation, that's not an excuse not to follow the rules: the CEO should then delegate the task to someone they trust, but ultimately it's their responsibility.
My recollection is that the contemporary reporting was pretty specific about what it was: an existing chopper with stealth tech grafted on. Something about that (the weight or shape) reduced lift and led to a crash landing during the mission.

Some Google around NYTimes would probably turn up the details.
> Sure but one has 10x more digits than the other so takes a heck of a lot longer to convert and display the string for the same number of iterations.

Hm, I was comparing the same number of digits displayed on screen though. One takes 2s to compute and display 10k digits of information on screen, one takes 30s to compute and display 10k digits of information on screen. same number of digits. At least according to the "progress" output that reads "Digits done".

I may be confused. But you have looked at the demo, right?
Same thing in Sweden. The unions are super strong here, which is one of the reasons there is no legal minimum wage in Sweden. It's not perceived as necessary by the public, political parties or the unions. The unions have more than enough power to negotiate and enforce good, liveable wages anyway.
Podcast: Event Sourcing: Bernd Rücker on Architecting for Scale
Inflation of 430-parsec bipolar radio bubbles in Galactic Centre
Actually, a lot of sensible business things do in fact become insane when you apply them to health care.
Truckers say California's gig economy bill could be devastating
The algorithm in the paper does have a threshold of n/13, beyond which it switches to "Method A".
I agree with you and am nitpicking only for my own knowledge: isn’t it “False “Dichotomy”?
No structure can check membership in O(1) time if n is big enough.
And yet if you ask Assistant to search for and open a webpage, it'll pick the first search result while ignoring the ads.

Of course it would -- it's basically "I'm feeling lucky" in a different format, which never did care about ads.
To nitpick your nitpick: that's only the case in America - everywhere else, Jail and Prison are synonyms
More info:
https://edition.cnn.com/2019/09/10/europe/norway-dog-disease...

Spain is advising people dog owners to not travel with their dogs to Norway.

There are fears that it might spread to other countries, it spread all over Norway quickly without any logical common cause found.
From a point of view of a regular human, how is WeWork good for me?

I'm generally opposed to 1 company to "rule them all", and I would like to see giants to be broken down.

In case of say, Amazon, at the very least being so huge may allow (arguably) for cheaper prices and almost everything in one place, delivered conveniently. suppose that's true.

How one company owning a lot of real estate is good for me?
The way I see it, if they are successful, they will spend less while charging more, even further accumulating wealth among the smaller amount of ppl. I don't see how it's good for most of us.

They aren't developing real estate market.
They aren't creating new ways of building more efficiently.
They aren't doing anything other than using huge sums of money to generate more money.
The last time I wanted an unpredictable, non-repeating sampling of 64-bit numbers, I used a symmetric cipher in CTR mode. Essentially, start with a random key and a random value, return the encrypted version of it, then the encrypted version of its increment, and so on. Returns every number in the range, with no predictability.
Ask HN: Where are the unit-typed languages?
Are there any programming languages that treat, say, numbers like adjectives, as human languages do, and have units typing?

Instead of an integer being a standalone noun, "5", it would be "5 apples", or "5 meters/second". Multiplying a variable of 3 meters/second by a variable of 2 minutes could give a result of 180 meters, and adding nautical miles to dollars would give an exception. I've played around with this idea a little bit in objects, but it seems like a language with such features built in or an object library should already exist somewhere.
>I came away sympathetic — recognizing a kindred spirit who’s capable of a lot, but had a hard time fitting in with the world

If there's one thing I've learned about HackerNews, it's that everyone here is an exceptional but misunderstood genius.

>while everyone else just saw a very impressive asshole.

I don't know a single person who came away from this film with the impression that Alex Honnold is an asshole. Seems like an odd take, but nothing in today's world surprises me.
i x is x rotated left by pi/2

df/dx = f

df(ix)/dx = i f (ix)

so the "velocity" is always orthogonal to the "position". Thus the solution to this equation in the complex numbers has to be a rotation.
The "choose n-k" trick is quite nice. It has one big downside though, which is that you can't start reporting any results until you're totally done.

One algorithm that I haven't yet seen mentioned in this discussion is: shuffle the array of choices, pick the first k.

If you're clever about it, this has some nice properties: you can stop shuffling after the first k, and if you want you can start reporting results immediately. (You'd want to use something like Fisher-Yates to shuffle for these properties)

This also wouldn't use much extra space, and doesn't require special handling for small or large k.

Biggest downside is it will change the order of the original set. And it's only worth doing if you already have an array full of the items to choose, most likely.
> Honnold enrages me. Free soloing is a fundamentally irresponsible act; it shows utter contempt for anyone in your life who loves you.

Before you vent, I would encourage you to think more deeply about what it means for an athlete to risk physical harm. Also, please refrain from using the F word in a public forum. Some of us find it offensive and disrespectful.
Nice, I was looking for one sometime back and the app based ones like amicus and robo pong cost around $2000
Budget deficit smashes $1T mark, the highest in seven years
“9. Growth teams have limited revenue potential.”

This one is important for almost all optimization efforts. Once the low hanging fruit is gone further efforts often don’t produce much but can cause harm instead. Stack ranking is a good example. It may make sense to identify and lay off the bottom 10% for one or two years. The you should stop. But if you keep going you get all kinds of weird dynamics that harm morale instead of improving performance.
Student enrollment goals by optimizing your financial aid strategy
Am I the only one who thinks it's a bad idea for a tech company with no experience or education in the field to have so much influence over what people perceive to be good journalism?
The mods gave you permission? Anyone can put Show HN...
Well if you don't charge them 10x, maybe more than 30% could pay.
Global Climate Strike Sept. 20-27
Not if you want it to be actually random.

But you might be correct if you simply want the appearance of randomness.
Well they do not read directly each other's memory, but still the baseband processor is electrically connected and so can exfiltrate data from or manipulate the application processor. On the other hand, if you have two phones glued together, one for voice/sms, one for internet access via independent network without microphone, the first one cannot exfiltrate/manipulate the second one and the second one cannot record your voice. That is isolation.
Do we have anyone HN reader working as quant for these financial aid optimization corps? Your insights are appreciated.
How is it anti-competitive?
Well, without those, I might have a better chance to actually see my friends in person...
What's the time complexity of sampling from the binomial distribution?
How do you like:

e^(i * tau) = 1

https://tauday.com/tau-manifesto
So specifically his sentence for skipping bail to the embassy is now over (you normally serve only half the amount given, which is now over) and he's now just being held in the extradition case.

He'd normally be given bail for that, but given what happened last time he was, his lawyer didn't even ask for it this time. So he's remanded in custody until the extradition hearing.
I thought this was refreshing to see :)

> We are NOT reselling another cloud - we built and maintain our own infrastructure and have complete control over our platform.

> We've been doing this since 2001.
It might confuse an AI, but a human would immediately know because the word renewables is first.
I wonder how they are going to make this... Only based on timestamp? Based in "trusted sources"? Based in a new API?
You can plug your car in so that it charges while it's parked. The same solar panels taken off the car and put on your works roof would be far more efficient because they face the sun.
Ask HN: Do you feel any cognitive dissonance working in tech at all?
Just curious. A lot has changed between 2009 and 2019. I still love design and engineering to solve valuable problems in day-to-day life and society at large. I am also aware of the public sentiment/resentment towards the industry as a whole. There is much to be said and to discuss. I would love to hear what you think and feel, what you are doing with your time and skills.
>Honnold enrages me. Free soloing is a fundamentally irresponsible act; it shows utter contempt for anyone in your life who loves you.

Well, I've had enough of the internet for today.
This, but you're preaching to the choir :)
PCB Repair: F-15 Strike Eagle
Homes for sale: Chinese investors are purchasing fewer U.S. houses
Nah, he's wrong, even in America.
A union protects the workers from exploitation. Their work is just as much proactive as it is reactive.

I mean, just imagine an investor asking a company if their workers are so bad that they need an HR department.
Only if they never halt
Thank you so much for your words. Sorry for the delayed response. I'm new here.
In main demo, auto file upload on select is not enabled.
Thanks for the star.
Thanks for the advice on title optimization - I am following it on the next post.
I just thought it was an interesting comparison ¯\_(ツ)_/¯
This Means War!
I've said many times that nuclear power needs better marketing. Drop nuclear from the name like the MRI manufacturers did. It's no longer a nuclear plant, it's a traveling wave plant, or a molten salt plant- more descriptive and also separates the concept in people's minds from a Simpsons-esque nuclear plant.
cut oversize, sand to precision.
What do SSH X.509 certs provide that DNSSEC and SSHFP RRs don't? SSH X.509 certs reminds of MTA-STS for SMTP, a shoe horning of the broken web PKI into another protocol that doesn't need it.

Also, I'm not convinced that TOFU for SSH is really all that terrible. Maybe it's just my use case and my situation, but I SSH to the same servers over and over again. And if I need to give access to someone new I give them the public key first.

SSH X.509 looks like a complex solution to a not very big problem that can be more easily solved with DNSSEC and SSHFP.
> They aren't doing anything other than using huge sums of money to generate more money.

Isn't that the function of _any_ company in capitalism? (Excluding, possibly, non-profits)
Spammers can already verify if an address is _accepted_ because their message will be rejected with an error code at SMTP transmission time if it isn't.

The first stage of spam filtering, and greylisting, also reject at SMTP transmission time.

I'd do the HTTP fetch when SMTP is about to accept the message, making the HTTP round trip just another part of the transaction.

Since spam filtering is likely to look at the HTTP response, you might want to reject the SMTP transaction after seeing the HTTP response, rather than accept the SMTP transaction based on address alone.
It's... not that useful, as far as I can tell (unless I'm still under-caffeinated!)

@avip mentions the following comment https://news.ycombinator.com/item?id=20961320 , which means that we only have to consider k ~ cn for 0 ≤ c ≤ 1/2. Drawing in this fashion, we have an expected runtime of k * (H_n - H_{(1-c)n}) ≤ k * (H_n - H_{n/2}) ~ O(k).[1]

The latter is true since H_n ~ log n + C + O(1/n) for some[2] constant C.

Of course, depending on what the author's constraints are, there would be an additional O(k) space requirement for keeping track of indices that have already been picked. Vitter's algorithm is particularly nice, since it can report the items without this additional space requirement.

---

[1] https://en.wikipedia.org/wiki/Coupon_collector's_problem

[2] https://en.wikipedia.org/wiki/Euler–Mascheroni_constant
I thought of swapping too, but there's something about it I can't quite fathom, that tells me, it will not be "truly" randomized as with the method I described above...

...and a way to offset that, if you insist on the method of swapping, would be to remember what you've swapped and cross-checking that, but then you end up with the same problem as when you pick random items...
It's the other way around. Taxation is theft. Governments may use the money for social good but that doesn't change that fact.
Yeah if they didn't have to go very far...

> It was exhausting to control and, according to program lead Ralph Mosher who was the designer and primary driver, operators could only drive the walking truck for a limited time.
To go one level deeper, elsewhere it's gaol.
Jail is for both pre-trial and for inmates serving sentences of 1 year or less (give or take; that's decided at the county level so it's just a rough rule of thumb; for some it's 18 months).

Also, the vast majority of "executives" never see the inside of a cell, even pre-trial. They might be in a holding pen for a few hours, but they always make bail and if the judge/prosecution is particularly concerned, the suspect gets additional conditions such as some kind of monitoring/curfew. A great example is Paul Manafort.
MicroProse Returns and Announces New Game
Google recent algorithm update made a massive change in the way news sites write their content.

It forced them to be original.

I believe elevating original reports is the incentive google gonna bring sites who follow their guidelines
Storm Area 51: The joke that became a ‘possible humanitarian disaster’
Building a Highly Scalable Service That Survived a Super Bowl
Nope. My conscience is clean. I don't work for a company with a spy/sell data business model.
Actually, this comment is correct despite making a similar argument to your incorrect one elsewhere. Using a set to accumulate intermediate results requires k inserts at O(log k) each.
'Cocktail of Pollutants' Found in Dolphins in English Channel
Some people will benefit while others will get screwed. Is a few earning more better than more having a job?
Does the author actually have a reason why analog would possibly be better, other than giving consumers choice?

Is the purpose of this article anything other than to generate clicks from hipsters who will click on anything that paints digital in a negative light?
It's sad that a journalist being tortured and treated so inhumanely isn't getting better coverage by his journalist peers
How many people have you personally observed searching for Basecamp? I mean, it can't be that many, right? Or, do you mean, most people you've watched use Google just click the top link for whatever they're searching for? But even then, how often do you look over people's shoulders when they're searching?

Maybe I'm weird but, like, I don't have any idea how my friends or colleagues use Google, and I work in the industry. So I'm really curious via what mechanism you were able to gather enough samples that you feel you can make a strong statement on this one way or another. Are you in SEO? A UX researcher? Do you have a business interest in the way people use Google, somehow?
> given non-negative integers k and n with k <= n, generate a list of k distinct random numbers, each less than n.

> We reasonably ask that this be done in O(k) time and O(1) additional space. Finally, the distribution must be uniform.)

Sounds like the Knuth multiplicative hash.

The Art of Computer Programming vol. 3, section 6.4, page 516.
This is a good approach. Thanks to bijective mapping between original and encrypted spaces the result is guaranteed to be unique. And since the mapping function is a secure encryption algorithm, the output has uniform distribution. Well done.
Progress takes time, and ambulatory motion is a finicky, delicate nightmare that only seems simple in humans and animals thanks to millions of years of evolution. CAM was created in the 1960s[0], but BigDog[1] and other recent Boston Dynamics quadrupeds that aren't designed for human passengers are much faster[2], but still awkward.

Also remember these are expensive prototypes designed to test things other than speed. Making them faster only guarantees that they break themselves harder when they run into a wall or trip over a cliff or something.

[0]https://www.youtube.com/watch?v=ZMGCFLEYakM

[1]https://www.youtube.com/watch?v=W1czBcnX1Ww

[2]https://www.youtube.com/watch?v=3OKZ_n8QW4w

>I think Neal Stephenson described a skateboard with hundreds of tiny feet, moving faster than wheels on any surface. I want to see that.

I am neither Neal Stephenson nor a physicist but I'm pretty sure the friction caused by the increased surface contact of "hundreds of tiny feet" versus wheels would still make the wheels faster and more efficient. Geckos and things can stick to vertical surfaces and move quickly because they're lightweight. Anything capable of sticking to an arbitrary surface and supporting human weight is going to be slow. And if moving downhill, wheels don't really need to do work - gravity does the work. Something with "hundreds of tiny feet" either has to slide or "walk."
this is more of a humble brag than a failure
You can do this sort of thing with Ada's type system. There is also a blog post about units of measure in F#
https://blogs.msdn.microsoft.com/andrewkennedy/2008/08/29/un...

It's a pretty niche topic. You can do this in a language like c++ or even python but unit aware calculations aren't a requirement for a lot of systems.
Negative emotional contagion and cognitive bias in common ravens (Corvus corax)
Yes, this exactly. Put the same panel on your roof and charge your car at home (which you do anyway.) You won't mar the car's appearance and you'll get more out of it.

What I would love to see is a Tesla that can act as a powerwall and power your house when the grid fails. Some people hack them to do that but it doesn't look simple or without risk.
Something like "Compiler Construction in Oberon", "lets build a compiler", "Turbo Pascal Internals"?

https://inf.ethz.ch/personal/wirth/CompilerConstruction/inde...

https://compilers.iecc.com/crenshaw/

http://turbopascal.org/
Automakers Invented the Crime of “Jaywalking”
An Obscure Mathematical Theory and the Consciousness Debate in AI
Is Julian even himself, any more? Last I heard, he'd been heavily sedated during an interview, and folks who knew him didn't think he'd survived it.

https://www.globalresearch.ca/julian-assange-tortured-psycho...

Just wondering. My personal opinion: Julian Assange is a hero who deserves all the accolades available, including the Nobel Peace Prize. But, I am aware that he has his haters here on HN: What say you about his torture? Justified?
My dad explained to me that his hearing loss is dominated by his inability to zero in on conversations in a crowded room. That has made it so that he’s much less willing to go out to socialize in restaurants, because that environment creates a form of isolation brought on by his hearing loss. While his hearing aids certainly do help, I would argue that they haven’t gone digital enough.

Being able to audibly isolate a speaker in a room full of other speakers would be a boon for his case (and I would presume many others). Anyone on HN working in this area?
Unionizing in Tech
I found the rater guidelines document linked in this blog post quite insightful. Sections like how to assess the "E-A-T" rating (Expertise, Authoritativeness, and Trustworthiness) will be useful to me when writing content.

https://static.googleusercontent.com/media/guidelines.raterh...
A place for side project PO’s and Coders to meet
The quoted part is sensible, but the title is goofy. Zero and one have to be probabilities. A lot of the underlying math doesn't work out otherwise, but you can also believe something always/never happens (if you're a Bayesian), or observe the same thing happening over and over again (for the frequentists).

Your example shows that (non-linear) transformations aren't linear, and that our gut feels about likelihood aren't either, which is true enough.

However, you wouldn't say "101 ˚C isn't a temperature" because it takes much less energy to heat a wet thing from 97 to 99˚ than it does to bring it from 99 to 101˚ because of the phase change.