skysight-inc/HackerNews huggingface dataset:
In 12 years, this appears to have regressed from actually seeing the planet, to just a vague theory of its existence. What's going on here?

Article from 07/2005[0] where Brown, Trujillo, and Rabinowitz discovered the 10th planet "using the Samuel Oschin Telescope at Palomar Observatory near San Diego. It is currently about 97 times farther from the sun than Earth, or 97 Astronomical Units (AU). For comparison, Pluto is 40 AU from the sun."

Article from 01/2015[1] where Brown (and Batygin?) proposed 2 planets might be beyond Pluto's orbit, and cite star HL Tauri, which has a planet forming disk more than 100 AU from the star - supporting the idea of "distant planet formation".

Article from 09/2015[2] where Sheppard and Trujillo publish a paper in Nature in 2014. They call it "Planet X".

Article from 01/2016[3] where Brown and Batygin proposed the planet in The Astronomical Journal.

[0] https://science.nasa.gov/science-news/science-at-nasa/2005/2...

[1] https://www.universetoday.com/118252/astronomers-are-predict...

[2] https://www.washingtonpost.com/news/speaking-of-science/wp/2...

[3] https://www.nytimes.com/2016/01/21/science/space/ninth-plane...
Computers are stupid
Yes, it is a waste and really a bad practice but this is the only way to get into these big cos unless until you are famous speaker or github\twitter\youtube rockstar.

I know a lot of interviewers who go through cracking the code interview book before taking an interview so what is the point? It is like school system. You read from a book and in the exam you will get questions from that book. It is really a pathetic and sad approach. Some people even spend 3-6 months practicing all of this. I would rather spend all this time in building something new.

We code in our zone and peace of mind. While interviewing, you are supposed to keep talking what you are doing and thinking. How is it possible? I think it is extremely hard to come up with a solution on the spot unless until you have spend long time practicing these puzzles then you get accustomed to these tricks.

If you are still keen on trying then there is an easy way - telephonic rounds are mostly about arrays and string so you can focus on that. For in-person rounds, you can focus on graphs and trees. It may or may not happen for you.
The Abstract Nature of AI and Why It Presents a Problem for the C-Suite
For coding interviews or take-home challenges, I like to ask applicants to solve questions that are a microcosm of the type of work they would be doing for us daily.

The questions have nothing to do with brainteasers or puzzles or even algorithms, and the coding challenge isn't even particularly difficult. A baseline solution requires only 5th grade math and a day's experience with the framework we use - but is flexible enough that the developer we're looking for will solve it differently than the one we're not.

That's because the work we do isn't groundbreaking technologically and doesn't require technical rock stars, just basic technical competence.

We're more interested in how they think about a problem that's similar but not identical to those they've solved before; how they use the time allotted; how they structure their code; whether and how they communicate about their decisions in comments or a README. Those traits are much more indicative of whether they'll be successful on our team.

And the coding challenge isn't just about testing their skills. It's also a jumping off point for discussions in the interview about how they think and communicate about code and problem solving.
The High Cost of Good Intentions
you are right and I believe that's how most people actually feel about moral, it's just that their team is not the whole humanity, only family/close friends or such.
I find this benchmark a bit disorganized, but it seems that the "hand-written" Julia function is as slow as the "hand-written" C function.

The C function is of course naive. I'm pretty sure that a hand-unrolled loop would be faster.
See also: https://en.wikipedia.org/wiki/Dmitry_Belyayev_(zoologist)

Several generations of selective breeding was enough to produce tame foxes.
By the way, here is a nice video explaining the mechanism:

https://www.youtube.com/watch?v=sSjJjKcoNRk
There's some strange rules around flood insurance. I don't have a mortgage but I do have pretty fancy insurance from a private insurance company. Flood insurance is mandatory, or at least mandatory per their policy.

They admit that there's pretty much zero chance that I'll flood, but they want me to be insured against it anyhow.

My elevation is 3800' and I'm pretty much on the top of a mountain. If it floods and impacts my house, there's not going to be anywhere to file an insurance claim. I'm not sure it's even physically possible for me to flood. I don't think the planet has enough water.

But, no... They want me to pay for flood insurance.

Yet, I lived very close to the water in Winston-Salem, NC and had minor flooding most every spring. My house was mortgaged there and flood insurance was mandatory.

The flood insurance was less than it is here. This house is worth more, but it's not going to flood. Blizzards, ice storms, and really strong winds are all probable. Flooding is damned near impossible. The snow cap could all melt at once and I could wash away, but I don't think that counts as a flood.

I don't get it.
> The government decides what drug development gets priority?

This might become necessary if we're to avoid an antibiotic crisis. Bacteria are becoming resistant to antibiotics at a greater rate than antibiotics are being developed. The problem isn't that we've tapped out what antibiotics can do, but rather that drug companies have little to no interest in developing antibiotics because there's very little money in it. Antibiotics are un-sexy drugs that don't make for good marketing campaigns.

Ultimately, if we want to continue to have effective antibiotics, a large entity with no profit motive, nigh infinite money, and a monopoly on force (i.e. the government) will have to get involved.
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Yes, we can find a mate and create a baby. We can't know whether it will be ready to fill a particular functional role after 20 years of training. This works OK for an entire society filling its workforce or army, but seems rather inadequate for a technology company to deliver working products on spec and within a reasonable contract delivery period.

If this is the basis of future AGI, I have to wonder if which flavor of dystopia we'll get to enjoy. Will it be a child-selling dystopia where we all raise a dozen kids hoping that some of them will pay off? Or more like silk-farming, where some capitalized breeder sells kits to all the villagers, and buys back the developed products if and only if the villager was lucky enough to raise them to fruition?

Also, if a human baby is our only basis for assuming AGI, then we ought to think about it like genetic-engineering or human augmentation. We'd better anticipate providing schools, hospitals, psychiatrists, courts, and prisons to deal with the wide variety of behaviors and misbehaviors which will come with these new products which have so little determinism as a baby's lifecycle.
The chance of flux going away is much less than Apple suddenly deciding "We don't want to offer this feature anymore."
I still don't really trust GOG after the whole "we're shutting down, too bad" PR stunt several years ago, but it's true they're a reliable distributor of DRM-free games which you can simply download and keep forever.
"That would only happen if that suburb were being built in an existing floodplain."

Actually, it isn't. Take a look at a map of the area around the reservoirs in question:

https://encrypted.google.com/maps/place/Barker+Reservoir/@29...

They are both completely surrounded by Houston.

When they were built, everything upstream was prairie. Rain falling on that area would mostly be absorbed or cause localized ponding. The rest would enter the river in question, Buffalo Bayou, I believe.

(Wikipedia has a dandy map of the Buffalo Bayou watershed: (https://en.wikipedia.org/wiki/Buffalo_Bayou). It's interesting to note that it's almost entirely contained between the 99 "Grand parkway"(?) and Houston---I'm old, I remember when there was farmland between Katy and Houston.)

Now, much of the area upstream has been converted to less permeable urban use, with the result that more water becomes run-off and ends up in the bayou. None of that construction is in any particular danger of flooding, itself. The article describes some of the legal and political fights that were involved in trying to say, "no, you cannot build any more net-impermeable in the Bayou watershed."
>Go try to wrestle a caveman for his fur pelt and see if he considers it to be a protected object.

But if I show up with a better club then all his stuff is now mine. A third party enforcing certain resource allocations with overwhelming force is different to everyone defending their own stuff.

Government is the difference between property rights and might-makes-right.
I recently came across a couple big boxes of ECL boards at Xerox PARC that I think are from a Dorado. But without the backplane, it would be pretty hard to make a Dorado out of the boards.

Some photos: https://photos.app.goo.gl/cn1CV9ts5sINLlwa2
You can see the 10181 ALU chips - these are ECL versions of the popular 74181 ALU.
Perhaps it's a borderline case, but I've used Julia to make a "big data" database server, backed by a mmap'ed column store.

Because the compiler's available at run-time, queries can be compiled into efficient kernels that can run in parallel over multi-gigabyte arrays orders of magnitude faster than MySQL or Postgres on the same hardware.

Without Julia, I would have had to find some other way to compile queries into machine code at run-time, which for me would have ruled out all the languages you listed. In practical terms I would have abandoned the project.
First start with work that they've written. Ask for a Github project or even schoolwork. Get them to describe the steps that they took. Approach them humbly, since they might not be great at communicating under pressure and may not properly express a consideration (like a prof mandating that they use ZMQ, say).

The code doesn't need to be perfect, but well written and hopefully tested, especially if it's in a dynamic language.

After that, do some basic hash map vs sorted array questions, some "how does the internet work" questions, and maybe get them to code up some solutions on a laptop that you get them to bring ahead of time (provide one as a backup though, since some people only develop on a desktop at home).
Show HN: A missing tool for Redis
No, but independently, consistently, reproducible research justifies a lot of things. When we see some from these guys, they may start being taken seriously.
Sure but there are also countries where bribing government officials is legal. It’s still corruption.
> it's more than 'just' a Photoshop alternative.

Can you elaborate on that? With Photoshop being relatively cheap to use only when I need it, I have a hard time supporting an Open Source tool that never seems to meet my needs. What am I missing?
ask about their last project, favorite project, challenging project, what do they want to do in the future, why do they leave their previous job. that's all.
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10 Phrases That Speak a Lot More Than ‘I Love You.’
Zero based indexing? I find it not too bad to switch between languages that use zero & one based indexing.
Conflating events isn't helpful. The following are independent of each other, so it's illogical to say something like "Trump won with populist support, therefore Facebook did not have an impact."

- The Trump campaign mobilized sufficient support to be elected.

- The Trump campaign demobilized Clinton's support.

- This was the first "social media at critical mass" election.

- Voter turnout was low, as usual in the US.

- Conservative organizations appear to have harnessed targeted ads on social media more effectively than liberals.

- Political and apolitical "news" businesses realized there was money to be made in sensationalist, false stories.

- Foreign governments realized there were no prohibitions on using these levers to affect US (and other) elections.

- Facebook appears to have been completely ignorant at the time of this impact. (Likely because, as the Atlantic article points out, their KPIs were truth-agnostic)

Is "X won Trump the election?" unproductive? Yes, in the sense that it precludes further examination and the fact that there were many factors.

But that doesn't mean that X isn't important in its own right and shouldn't be examined.

A move from a limited oligarchy of old guard news sources to an explosion of anonymous, high-sharing-velocity, profit-driven sources is absolutely going to have an effect on democracy. And is important for that reason alone.
> If you think he does not know this fact,
> you are plain ignorant.

Thanks for reminding me about that...

I won't deny that I am indeed ignorant -- and on that, I would concur in Socrates' words, "I know nothing except the fact of my ignorance"...

> Xi knows too well how to deal with people,
> and how complex they are, otherwise he would
> not reach his currnet power at all

I am not really sure -- bear with my ignorance again -- what you mean by "know how to deal with people"...

I think everyone knows his own way of dealing with people -- that's the social aspect of every human being...it's just that their knowledge about that matter could be very different from each other...

When I state "humanity itself is a quite complex matter", I am just stating it's complex; and I am not stating _how_ it is complex -- I feel that's a very very broad and involved matter; and on that, too, different people may have different opinion and understanding, which could be evolving and changing all the time...

For instance, you could say that half a century ago another Chinese "power" leader, Mao Zedong, understood how to deal with people -- for "otherwise he would not reach his then current power at all" -- and the manner of his dealing was to simply destroy or even annihilate those who did not agree with him; and he termed that dealing as "revolution". It's indeed a great achievement for Mao to somewhat successfully reach that goal; but this does not mean that kind of policy really benefited the average Chinese people living in those days...
R uses a "sort of" lexical scoping which causes some "interesting" things. Eg a symbol may be simultaneously in global and local scope within the same function, which can be (ab)used to create a variable that's randomly scoped[0]. I'd say this is sort of a "dynamically lexical scope".

[0] http://andrewgelman.com/2014/01/29/stupid-r-tricks-random-sc...
Python's PULP & Pyomo are pretty similar to JUMP.
Both Powershell and Javascript are "curly-bracket" type languages. Yet semicolons are only mandatory in one. Why?

(Powershell can have nightmarish encoding problems. "Why did my file change from UTF-8 to "UTF-16LE BOM"? Is that why Powershell can't read the file?")
Value types are also addressed in the article
The three-month notice period is mandatory, because:

- if the employee leaves, it benefits the business:

-- the employee has the time to hand over their work

-- the employer has time to look for and find a replacement, or prepare for work without the employee

- if the employee is fired, it benefits the employee:

-- they have the time to look for a new job

-- they continue working, receiving salary, and don't have to worry about bills, rent etc.

In both cases the employer and the employee can agree on the actual time when the employee quits: it could be the next day, or next week, or after three months, at the end of the notice period.
I don't necessarily agree with this. Many of the articles could do a better job at unpacking the material. Take a look at some of the more technical articles for math, there is a significant lack of examples, and even the pages that have examples lack the explanation about why the example is important/useful.
I'd also add 3. It seems dubious that colonization would lead to oral histories of civil war, somehow "transferring" brutality from a foreign invader to themselves.

The author doesn't seem to give a lot of credit to the locals and their own accounts of history. Those stories are often much more accurate than we think.
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I know some very talented software engineers who would not have gotten their jobs if not for studying leetcode. It's now expected that successful candidates are able to solve these puzzles without much trouble so even experienced engineers will treat leetcode as standard interview prep.
How do horses fit into this?
It's nothing special at all, just a differently named folders essentially.

The flow is basically:

- All files on desktop older than 1-2 days is moved into Downloads folder (very busy and anything goes in there)

- All files what have been in Downloads folder after ~30 days are moved to "need review" folder.

- Nothing special about "need review" folder, but it's present in my dock so I see if a "new" file has arrived for needing review.

The nice thing about it is that the files slowly trickle into my view, so I usually only have to deal with a few files at a time which makes it very easy to see if I need to throw it or move it somewhere more permanent. My downloads folder used to slowly build up to massive sizes and I usually didn't have the effort to categorise it so it went into some "downloads-date" folder (since there miiiight be something I wanted to save inside it). This no longer happens.
I sit down with them and have them write code. I give them a problem, a test suite, and an editor of their choice.

Their challenge is to get as many tests as possible to pass.

It's not really intended to get all of them - they branch into different areas, and the candidate can choose the direction they would like to move in.
> Some local government officials, like Harris County Commissioner Steve Radack, say they’ve warned residents for years about the risks of living in or around the reservoirs during town halls and other public events.

Wait. Isn't the job of government officials to not issue building permits in the first place?

> Several local officials — including Houston’s “flood czar” and a neighboring county executive — said they had no idea the neighborhoods had been built inside the flood pools. Several real estate agents said they didn’t realize they were selling homes inside the pools.

Yeah, right.
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> I wanted to say that we stopped thinking of f.lux as a way to match a room about 8 years ago.

That's funny. All I want is having nice, soft colours when I'm up all night.
Dunno man, the 90s brought us Death's best work, the good Cynic album, Nile, some cracking (and cracked) black metal... lot of dross too, of course, but it's the last seven or eight years that've proven a wasteland for me.
A lot of what you might think of as storm damage is classified as flooding. Still, you may just want to shop around for a different private insurance without the flood policy requirement.
They decided not to classify the 2005 "10th planet" as a planet (and to stop classifying Pluto as one).

This new one, if it's there, will be much bigger.
The Army Corps should buy up as much of the land possible around the resouivor while the prices are depressed to prevent future development on it.

EDIT: My comment assumes that they would acquire additional funding to do this, as they are the best agency to acquire and hold the land to prevent future development (vs a traditional land trust for conservancy).
> Threads do scale. On Linux, O(1) scheduler solved this non-issue a long time ago.

yup they do.

till you start making sure that your code doesn't end up with deadlock, data-corruption, races, performance issues due to lock-contention etc. etc. designing efficient locking schemes is notoriously hard alternating between:

- too coarse grained : resulting in serializing activities which could have (should have) proceeded in parallel, thereby sacrificing performance and scalability.

or

- too fine grained: with space+time for lock operations sapping performance, error recovery and not to mention understanding etc. etc.

In the former we have the dragons of deadlock and livelock roaming freely, and in the latter we have race conditions. Somewhere in between is a razor's edge which is both efficient and correct.

Almost always, things start with ‘one big lock around everything’ and the vague hope that performance might not be abysmal. When that is dashed, big lock gets broken up, and the prayer is repeated. Each iteration increasing complexity and decreasing lock-contention, and hopefully with some luck, modest performance gain as well.

remember this:

What do we want ?

Now !

When do we want it ?

Fewer race conditions !

have fun :)
I have this hilarious photo from the last tour. I call it the Sea of Baldness.
I have been using f.lux for years and loved it. One of the first things I would install on any system. But this latest update fundamentally broke for me. It goes dark an hour or more early, gets light again at sunset. It brightens up an hour before sunrise, and darkens as day rises. I end up manually enabling and disabling it to get things right, and half the time just kill the process.

Most likely the combined settings of some combination of my wake time and/or daylight savings time has something to do with it. I'm not sure. But before this last update, it always "just worked". And now that is no longer true.
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In my experience, learning C as a begginer is hard. But it also made me learn a lot of things including things like inline assembly. well one may ask how useful all that could be but undestanding the underlying mechanism is always good in my opinion.
C would make one use get the habbit of using memory and resources judiciously.
Python is an easy way gets things done fast but since it is not a strongly typed language, moving from python to C would probably be a bigger pain.
I think 0 to C is better and worth the pain.
The present study focused on changes in brain function before versus after psilocybin in
patients with treatment-resistant depression who received two doses of the drug
(10 mg followed by 25 mg, one-week apart) as part of an open-label clinical trial.

25mg of pure psilocybin, the equivalent of 3.3 - 5 grams of dried mushrooms (depending on strength), is certainly enough for a trip.
From what I have heard, non-recourse (in CA) only applies to original purchase loans. Once you refinance, which most people do as rates change, it does not apply. Not that this distinction makes much of a difference - most people want to believe their land is still worth millions.
> Despite the 90’s sucking for metal

Not a death metal fan eh? 1990-1994 is generally considered a creative high point for death metal and starting about 10 years ago there was a huge trend toward reviving that 'old-school' sound, which involved a lot of blatant aping in particular of early 90s Swedish bands.
...USB drive, USB keyboard HID driven by the laptop, QR code to webcam, CD-ROM, floppy...
> although I am certain KenoFischer would

Sure would.
This is 'interesting', but I don't see it as useful at all. And it's not a substitution of JS, but rather of how you interface with it.
Really cool pictures!

Light bulbs are sometimes used for stabilizing oscillators. I think it works like an (audio) volume "compressor" would.

For example the Thorens TD125 turntable uses a light bulb as part of the oscillator circuit that generates the AC signal that powers the motor.
Fine build it, but no insurance. Should be self-regulating, and FEMA /FedGov should not subsidize them.