skysight-inc/HackerNews huggingface dataset:
>you can't communicate with other people using your brain alone, so you cannot use it to coordinate terrorist attack either

You can use it to plan and carry one on your own though. And of course you'll know about an attack if your team is organizing one. Shouldn't all people get brain-screened (from experienced TSA brain scanning operators) to ensure the government gets that information?
> You're missing the point that this power being "reserved" by holders of political authority is exactly what prevents corporations from exercising it.

That which can be asserted without evidence can be discarded without evidence.
"History repeats itself"

Although technology is new, spying is not.
Who do you think is responsible for funding most of the Parks Department (and the rest of government)?

It’s always going to be these people that that created the most wealth that are paying. It’s much better to have them pay for it directly than to have the government tax them and have the government pay. The former eliminates all the waste involved with paying bureaucrats to take the money as taxes and more bureaucrats to spend the money that was taken. I would be surprised if the government would have to tax at least $16 million to be able to spend $15 million but this grove of redwoods.
TIL humans have consumed 9.2b tons of plastic. 6b will never meet recycling bin
The issue is Royal Mail being negligent.

Even for proofs of postage sometimes (always?) the certificate only lists the recipient's postcode instead of the name and full address.
I'd be happy with a regex engine with negative look-aheads.
The team members were Meteorologists and Biologists, not nuclear observers. You can find the team and their names here. http://blogs.sun.ac.za/antarcticlegacy/reference-materials/m...
Supporting On-Stack Replacement in Unstructured Languages
Ubuntu Touch on the Rapsberry Pi 3
I'm really, really torn on this. On one hand, this is an amazing way to immortalize memories, experience, whole lifetimes of accumulated knowledge and wisdom. On the other, it feels like a severe form of escapism and refusal to move on.
Most of the UI/UX you see on movies are made just to appeal to your eyes. I've used the same models of some movies and they were increidble useless. They are made just for seconds of filmming not for daily use. They don't scale at all.
Somehow, this title gave me goosebump in a way the end of Inception gave me

Great idea for a movie
I have used PostgreSQL+JSONB and it works great. Doing indexes on JSON fields adds a lot of value.
Show HN: Flix Koans – Programming with Embedded Datalog [pdf]
My company are doing this right now with a hot desk only policy. It never seems to occur to people that maybe millennials just want to be given choices, rather than have some old man telling them what they want.
There is a Wayland compositor called Wio that is looking for help in implementing a file system interface for window management, similar to the one in Plan 9. If you have experience writing FUSE file systems and want to help out, please contribute! Previous HN discussion here: https://news.ycombinator.com/item?id=19797152
the most precise postcode is likely singapore where each building block has its own post-code. the worst is probably hongkong, which does not even have a postcode.
There's a pretty active developer community!

Main community resources are on Reddit and Discord:

- https://www.reddit.com/r/RemarkableTablet

- https://discord.gg/n89uDN

You can use the tablet without the proprietary cloud platform by using the built-in web interface to transfer data.
Troll, you're making 0 sense. Socialism and government works very well when done correctly (north europe).

Take away government you'll just have kings and queens. You think they would respect your rights and/or life.

You must still be a teenager and have not gotten through this part of world history yet. When you do you will understand.
Personally,PostgreSQL. Both have their advantages and disadvantages, but my standard arguments in favor of Postgres are that it:
1. Enforces data types natively. I've shot myself in the foot before with MySQL and 'polluting' data.
2. JSONB support makes it easy to use a 'hybrid' schema if you want NoSQL-like behavior or a junk drawer to shove JSON into.

Regarding your conversion questions, it's common to have an app that communicates with several databases, but I don't know of any architecture that would allow ACID transactions in two engines simultaneously.

As far as converting data, it all depends on what your development preferences are. I work mostly in the Ruby ecosystem, and I can tell you that I've used ActiveRecord to a Postgres database, and exported the results into a SQLite file. I'm sure it would be possible to use an XML parser like Nokogiri to convert XML into a SQLite file as well. If you prefer another major programming language, the tools likely exist to accomplish the same thing.
How to treat dizziness and vertigo, only doing 15 minutes head balance exercise
What's the use of a nuclear weapon - a weapon strongest of them all, if the enemy know you will never use it? This is where I think, the popular thinking in Western political circles diverges with the cold logic of warfare.

What is the best way to scare your enemy with your commitment to murder him using overwhelming force, than... to start doing so?

The politicians and people reading political science may thing the other way around, war does not work the other way as shown by thousands of years of history.
In the case of C#, LINQ is a declarative built in part of the language. At runtime, it is converted into an AST and if you use Entity Framework, it is translated into SQL - another declarative language.

You can theoretically express any standard SQL query in LINQ even though outer joins can be obtuse at first. The translation may not be as optimal as hand written sql, but no compiler can translate code into assembly that would be as optimized as someone who could hand roll their own. We decided decades ago that high level languages were worth the trade off most of the time.
Question for today's Privacy thread-

Why is there an expectation of privacy? If I talk loud, people will hear me. If I drive across the country, I'll be seen. Why is internet traffic any different?

Sure it might be good to have Privacy, but I'm not sure why HN think it's natural or something.

I can only think of a few rare circumstances where people are anti government and need to hide their tracks for everyone's benefit. But given PRISM, those people already know they are being watched.

Who are we protecting with "Privacy"?
On my machine systemd is configured by creating files in /etc/systemd, /lib/systemd, and potentially /run/systemd (even temporary/generated config turns into files) and then sending a message to /run/dbus/system_bus_socket. How does it work on your system?
yeah, infinite scroll is much asked-for
That may be true, but Royal Mail does not play a significant part in this fraud. There's nothing Royal Mail could do to stop this fraud.
Love a good cheatsheet that actually respects the concept of being a SINGLE, fixed-layout page: http://www.ocamlpro.com/wp-content/uploads/2019/09/ocaml-lan...

It's something of a lost art in the paperless and HTML era of documentation.
EXPLAIN is almost useless on mysql, but very helpful in postgres.

EXPLAIN is a very useful command once you have some degree of success (users).
I wish someone did a light A4-sized eInk device with these software features:

* PDF reader

* epub reader

* well-maintained paged-media mode Web browser (well-maintained meaning timely security patches for the browser and the base system)

* no app, just standard MTP over USB and whatever the Bluetooth file transfer protocol is called

* reasonable privacy stance (not collecting what documents are read)

When looking for the above, which doesn't exist, I settled on Sony Digital Paper (DPT-RP1) instead of ReMarkable. (My recollection is that the Sony device had a larger display and didn't assume a cloud component, which could shut down.)

Sony has the hardware side solved albeit in U.S. Letter size instead of A4. However, of the other points, it only does PDF.

Sadly, despite being based on Android 5, which meant they could have gotten the standard file transfers for free, Sony disabled that stuff and forces the use of their Windows and Mac app to load the PDFs onto the device. At least back when I bought the device (which was before the GDPR came into effect), the terms of service for the app were unreasonable: The terms claimed the content of the PC running the app as fair game for telemetry. Nope, nope. I've never connected the device to the network and I run the app in a manner that blocks it from accessing the network. One shouldn't have to take steps like this. The app and the terms for the app make even less sense considering that the marketing target of the device is doctors and lawyers, who even in the U.S. have specific document confidentiality obligations.

Sadly, I have no idea what kind of business model would enable a well-maintained paged-media mode Web browser. Taking an existing Web engine and making its print-oriented paged-media capabilities work well in the interactive case would be a major project in itself. And top of that, actually keeping up with security patches would be hard work. (I have used a continuous-media Web browser on eInk, and it's not a good experience.)

Anyway, I wouldn't go back to not having a Digital Paper device, but I feel dirty about Sony having gotten my money despite me having to deal with their PC-side app and its terms.
these devices are just lovely for weiting and sketching.
A similar idea moved a bit further is the theme of the film Transcendence
As someone who has transitioned from MySQL->pg, this makes total sense to me. Partitioning is still a bit better in MySQL IMO (many types / options) - but pg is nearly there.
In the 80s, Bill Gates and others figured out that hardware was a commodity and most of the value is actually in the software.

It's possible we're seeing a reversal of that trend; like we're seeing the trend of a distributed/decentralized Internet increasingly look like a single big computer run by Cloudflare, Google and a few others; Minitel 2.0.
Used to have my email in my bio but switched to keybase. I have not experienced Nigerian princess like spam but mentioned newsletter sign-ups. This was the reason to switch to keybase.

On another note HN has interesting user segments. Quite a few people reach out to me when they are about to relocate to Germany as an expat and have some questions. Did roughly 20 phone calls the last quarter. There are 2 distinct groups reaching out. One group reaches out with their real email and we have a nice phone chat after. The other group reaches out with a uniquely created email, does not intro themselves during or after the phone call. Staying anonymous is an odd way to make friends or stay in contact :)
To be fair, often you don't have your requirements completely nailed beforehand, or they change midway through the project.

That's why I choose Postgres: aside from extreme scale or latency, you can throw pretty much anything at it. Also, given expert advice, its performance degrades gracefully i.e. lots of easy ways to optimize and workaround issues.

Example: pg's type system is insanely flexible incl native support for high speed JSON, latlng, geometry, and more - and types are "batteries included" incl matching, inspection/extraction (e.g. JSON navigation), conversion, concurrency and concurrency control, ACID recovery, replication, etc. For example, it's one way line of code to create an index on the results of a JSON navigation expression whose result is then converted to another datatype e.g. timestamptz. Performance is then 100x+ on queries that use that expression.

Pg datetime handling is also world class incl timezones and conversion, query and manipulation functions. Want the records from last Tuesday across timezones, given data in seconds-since-the-epoch? The SQL is shorter than in English.
You should totally watch Source Code, it's a much deeper dive on this subject. Great movie.
It makes a big difference for me, at my job. 3.6% is enough users that I can justify spending (some) time to test and fix bugs. As that number approaches 1%, however, it gets much harder.
There's a black mirror episode based on this.
Re: Uber it's not like they didn't cause some of their own issues by keeping very long running transactions. Also, they don't use MySQL directly, my understanding is thqt they wrote their own database and use MySQL as a kv store.
Google accused of using 'GDPR workaround' to feed personal data to advertisers
C++ or Rust
Why Did Benedict Arnold Betray America? (2018)
Yes, even if "objectively" being wrong.
Do they make coal powered rockets?
Unless your opponent has a retaliatory nuclear capability. Especially one that requires minimal human action:

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

Surprise attacks with a super-weapon only works if you're the first to have one.
Oh, wow. Didn’t realise that GPS satellites were equipped with Bhangmeters, used to detect flashes caused by nuclear detonations. https://en.wikipedia.org/wiki/Bhangmeter
I'm part of a team that operates a roughly 100 node Kubernetes cluster. I'm on call after hours for a week at a time, and am on call roughly every six weeks. I think I've been on call for three weeks this year, and I've been paged twice. Both of those were pretty straightforward problems solved within half an hour or so, with zero customer impact. This is roughly what other people in my team experience, probably averaging less than 1 page per on call rotation.

The question you should be asking is: why am I being paged so often?

Are they legitimate things that you need to respond to? If so, you should be fixing these issues so that they don't happen again. If anyone gets a page, we make it a high priority to fix whatever caused it. We are a team of 7, and we dedicate one person a week to field questions relating to our platform as well as to fix up these issues that wake us up.

If they're not legitimate things that you need to be woken up for, why are you being woken up? If this is the case, you need to make sure everyone is on the same page regarding what constitutes something you need to be paged for after hours.
Though sometimes have a problem castling? Is there a specific way I need to click in order to do this?
The author seems to mix up Gibbs free energy with entropy. The remark that thermal equilibrium equals maximum entropy is simply wrong. All examples can be explained with minimization of the free energy:

dG = dH - TdS

dH == internal energy (chemical bonds) + pV
dS == Entropy term
T == Temperature

Where entropy is the number of different states the system can be in for a given internal energy.
A thermodynamic system in equilibrium will always tend to a state of lowest free energy.

Example: a perfect crystal would be a totally ordered state (and with the lowest entropy), with the internal energy minimized due to the highest number of chemical bonds. For T -> 0, this would be the thermodynamically most stable configuration (however not always kinetically accessible, e.g. supercooled water). As Temperature goes up, the Gibbs free energy of a more disordered phase (e.g. crystal defects or a liquid/gas phase) becomes lower and will eventually lead to the melting of the crystal.

For the oil/water example, the separated state minimizes the free energy since polar water molecules can form hydrogen bonds with themselves (lowering the internal energy), and push out the oil molecules, even though the entropy is lower than for a totally mixed state. At higher temperatures, this will change theoretically and the mixed-phase becomes favorable thermodynamically.

From this point of view, seeing higher entropy as more disorder seems absolutely fine, where more disorder is "lower chance of guessing the exact configuration of all molecules in the system".
Seeking wisdom: wiser crowd judgements through weighted methods
Having correct tracking and proofs of postage, and potentially coherency checks between written address and barcode, would make it much more difficult to impossible.
I live in a very congested European capital and I actually do like to give advice to people from outside the city on which tram or bus they should take and from where exactly. Often times I give my advice even if not directly asked, i.e. when I overhear someone in my vicinity asking for directions. We are social creatures and thinking otherwise is the real selfish thing to do.
For Fat Cats, Struggle Is Real When It Comes to Losing Weight and Keeping It Off
For me postgresql's schema, EXPLAIN, Column modification and UUID. But most of the time I stick to sqlite, it satisfies most of the project with low footprint and require for installation restricted servers.
4.09 (which has just been released) includes a number of changes that are being introduced soley to ease the merging of multicore.

4.10 will also include a recently merged, large change for multicore support: https://github.com/ocaml/ocaml/pull/8713

The plan is to land multicore in trunk through a series of smaller chunks such as #8713
> In general I don't give a rat's ass about the greater good.

Well, there ya go.
I've been using reMarkable for more than a year now. It's a very mediocre product with major software problems, BUT, I still will not trade mine with anyone for one simple reason: it allows me to disconnect and think. iPad, surface are all better in terms of features, but I get easily distracted. When I have to write something I am having real difficulty with, reMarkable works much better. Can't precisely explain why, but my guess is that it allows me to focus more deeply, like a blackboard or notebook.
> Thermodynamics doesn't care about our ignorance of potential system configurations, but that these configurations are available for microscopic system evolution!

Thermodynamics equations are based on the macroscopic constraints on the system that we choose to measure and manipulate, implicitely admitting our ignorance about the potential microscopic configurations. Thermodynamic entropy, unlike energy, is not an intrinsic property of the physical system; it is a property of our macroscopic description of the system and the experimental processes that we decide to perform on it.

See section VI. THE "ANTHROPOMORPHIC" NATURE OF ENTROPY in https://bayes.wustl.edu/etj/articles/gibbs.vs.boltzmann.pdf

"Recognition that the "entropy of a physical system" is not meaningful without further qualifications is important in clarifying many questions concerning irreversibility and the second law. For example, I have been asked several times whether, in my opinion, a biological system, say a cat, which converts inanimate food into a highly organized structure and behavior, represents a violation of the second law. The answer I always give is that, until we specify the set of parameters which define the thermodynamic state of the cat, no definite question has been asked!"
Sikander-E-Azam Plus Capsule
Nightfall

Have you heard about nightfall? Men may be aware of this word but many of them are embarrassed to admit it. There is nothing to be ashamed of! Nightfall is a condition in which a man gets wet dreams. In a nutshell, This is not a rare problem as there are innumerable men who are facing this problem. Nightfall has other names such as nocturnal emission or wet dreams. A man does not have to be embarrassed about this because their body is made in such a way that it just happens.
You don't really benefit from MySQL speed if you are not Facebook, so I would always start with PostgreSQL.
No description whatsoever of wtf Neqo is, nor wtf QUIC is... this must be some kind web library because every web developer is a narcissist that thinks nothing else but the web exists. Googling "QUIC"... yep, every time.
Muen – An x86/64 Separation Kernel for High Assurance
This is super interesting. So you had a high number of pages, but then you also had a really clearly defined and sensible sounding way of dealing with the root causes of the pages?

If you're constantly fixing the things causing you to get pages, why are there still many more than one per day? Just prioritisation of other work over fixes?

We have a similar system, though we have one person on after hours support doing normal work during the day, and one person during the day who doesn't do normal work. That person works on remediating the issues that cause people to get paged. Leads to a pretty low number of pages.
There is a Larry Bond book on that. An entertaining read.
I'm a fairly early adopter of the RM, and bought it for keeping handwritten notes. I don't produce a great amount of notes as a student might, but I find that the experience of writing really helps me think. Some thoughts on the device:

* The writing experience is top notch. It feels like pen and paper. I recently had the chance to try Onyx Boox Max 2 (very briefly), and it's nowhere close to the RM as far as the tactile feeling goes. This is the main selling point of the RM, and it's very good.

* It's an open-source Linux-based device but not entirely. The actual UI application isn't open source. But as others have said here, it has pretty good hacking potential, and it's definitely more open than most commercial devices. The company's support of open-source was another reason for me to buy it.

* The on-tablet software started out really bad but has improved. The first version had a bug that dramatically reduced battery life. It took a few more updates to get essential features like inserting a blank page in the middle of a notebook.

* The off-tablet software is bad. There's a file manager webapp with remarkably poor UX, the cloud sync API isn't particularly convenient for automation, and so on.

* As a reader, it's mediocre at best. PDFs formatted for large screens look good, but rendering is slow, navigation is poor, etc. I would absolutely not replace my Kindle with the RM.

To summarize, I think the RM is a very good device if you treat it as a digital paper replacement. That's what it is for me, and I'm happy. But if you want a good e-book reader, or any advanced software at all, this isn't the right device.
They were also pursuing nuclear weapons contrary to the wishes of the international community.
Entirely OT, but I'm getting a bit tired of the coffee-based naming. Some other software named Espresso:

ESPResSo is a highly versatile software package for performing and analyzing scientific Molecular Dynamics many-particle simulations of coarse-grained atomistic or bead-spring models as they are used in soft matter research in physics, chemistry and molecular biology.

Espresso, for people who make delightful, innovative and fast websites — in an app to match. Espresso helps you write, code, design, build and publish with flair and efficiency.

Quantum ESPRESSO is an integrated suite of Open-Source computer code for electronic structure calculations and materials modeling at the nanoscale.

And the list goes on and on ...
Clifford A. Pickover
The left brain / right brain thing is wrong, but different functions of the brain are definitely localized. This is seen in studies of people with unusual brain damage, and sometimes when sticking an electrode in a certain part of the brain has an effect.
This sounds a lot like feudalism!

The Lord having a duty to his peasants to protect parts of the land and pay for its upkeep.
Competitors are throwing everything at the wall to slow the Amazon juggernaut
Importance of weak and unowned keywords in Swift – example