skysight-inc/HackerNews huggingface dataset:
The discovery seems makes sense given the migratory, raiding and trade patterns between the Arab and Viking worlds in the era discussed. Some settlers and converts (of tradition, religion, etc) will always be found within intersections of 2 or more cultural groups interacting under any pretext. The post also outlines physical evidence, which has/will presumably be re-examined directly by other researchers to verify and extend lines of inquiry.

So, it is mildly amazing to see the mental gymnastics being exhibited by some comments to refute a completely uncontroversial discovery.
> It would blow out the cost structure however

Sure, all of these problems are solvable if you are willing to expend arbitrary resources. But the whole point of this exercise is to provide an economically viable mode of transportation. (Isn't it?)
Global Tropical Cyclone Activity
Is a data science bootcamp worth it?
I'm sure it's been covered to death already, but wow, this really ought to kill user's batteries. I'm not sure how I feel about this concept.
Is this because the close buttons in Japan actually work? My impression as an American is that they serve no purpose other than to provide a false sense of control.
Of course, I agree, you can always scare the canary to death by yourself.

The big question is what is actually happening with china: is the outflow of money permanent, increasing or decreasing? If china was strangled by a crisis and devaluated internally, for example, and money came back into china, that could be devastating for the world.
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And the problem is the general population doesn't understand this.
Hard to take this seriously with a mistake right on the front page:

> It's the cheapest miner on the market:
85% to you - 15% to Coinerra

A rapid search turns up crypto-loot.com with 88% payout. That said, it's good to see more actors in this space. Just please get your facts straight!
See page 22:

"
Modular Neuroevolution

• We are currently working on a neuroevolution framework
based on Cartesian genetic programming (CGP) and existing
work on CGP-based ANNs.

• The algebraic framework introduced in this work will be the
basis for the genetic representation and operators.

• Evolved networks will be a mix of de novo evolved modules
and existing modules in the form of ANN layers, relational,
and functional programs.

• The representation will be based on a mapping between
algebraic expressions and a recursive, modular adjacency
structure.
"
>> I switched back to my beloved Objective-C for the app I was developing.

Can you write the app in Swift (if there are advantages to doing so) and then write the image processing routines/library in C?
That's basically how the Internet Archive does it: https://archive.org/details/tabletopscribesystem
And this is where one needs wisdom that should be part of a healthy meditation practice.
There seems to be some kind of issue with the video between 2:08 and 2:10. You can see the flags going back and forth as if someone rewind the footage. Maybe it's an editing error?
The Charles Bonnet syndrome is a good example: https://en.wikipedia.org/wiki/Visual_release_hallucinations
> There are plenty of uses of the word "revisionism" with the pejorative connotation that predate the war in Iraq

Sorry, I meant in colloquial American english. I don't recall ever hearing the word spoken aloud prior to maybe 2005, though I could be misremembering.

You can certainly find the pejorative use(which I maintain is still incorrect) in the early 80s with respect to some books that were published at the time about the Vietnam War. I think prior to that the term was entirely academic, though again, I could be wrong.
Comic Video – HMM and AHA Are 'Makers'
> Many of automation ideas here bring an edge to one person at the expense of everyone else.

Except for mine. it’s a win / win when people hang out together
Benchmarking JDK String.replace() vs. Apache Commons StringUtils.replace()
Eight to nine hours of sleep receives a nod of approval (1983)
This is only if the tube sections all move together. This could be handled at the joint between each tube section, and then the joints would only have to move a fraction of that distance.
Disney Movies Anywhere
What new features does Ruby need? Why does a language need to be "cutting edge technology"? What are the issues with Ruby that need changing? These aren't rhetorical questions, I don't know much about Ruby and am genuinely curious.
This actually depends on your use case and type of your queries. There is a blog post (2014) about a benchmark: https://www.citusdata.com/blog/2014/06/14/columnar-store-ben...

I also believe that the main use case is for the compression of data more than the performance benefits.
On the contrary, developing a good intuition about stuff like this so you get it right the first time is a big time saver in the long run. Especially when it's no extra code to do the better thing to begin with.

Good developers have battery empathy.
Passively cooled. The thing was originally meant for extended use in "extreme" industrial environments (eg at a power substation, inside a wind turbine, etc..), so it had no vents or moving parts at all. Everything was heatpiped to the metal case, which looked like a heatsink.

Similar looking model from same company: https://selinc.com/products/3355/
Inside the Moonshot Effort to Finally Figure Out the Brain
An electronic device contains many orders of magnitude less material than a hyperloop track. There are all kinds of materials that are economically viable when measured in micrograms. Hyperloop track material has to be bought by the kiloton.
I was under the impression that seccomp was a bit more flexible (via ptrace() and BPF fanciness) - although I guess you'd need other co-operating processes in userspace? I've only played around with it a tiny bit.

Also, both kinds of policy are resident in files. I don't understand your point there.
Sure, there are a few implementations:

https://www.google.no/search?q=tplink+hs110+github&oq=tplink...

Not too secure, you're right.
If you read the proper book on meditation, you would be meditating on why your mind holds that belief.
Python had a scientific community long before even this whole new fad of Data Science. Also, financial institutions helped make software such as Pandas. The last thing is that that the syntax of the language is really friendly and easy to use with batteries included. Others have mentioned its a great glue language since it was originally designed as a systems programming language and a bunch of *nix distributions use it for that purpose.
I would definitely recommend that you give new technologies a try but not for sole reason of getting a job. Build something that you might find useful and do it for the pleasure of learning.

You can share your experience through a blog and who knows it might even end up on the first page HN.

Also don't forget to get some exercise to get your spirits up!
The word count example has... 8 classes. To count words.
HODL!
It doesn't make sense at all. Proper responsive design should handle showing much more data and expanding properly for desktop browsers. Remember the original iPhone was popular for being able to show the entire desktop page on a mobile browser - we don't need everything to be big giant buttons.
Where to get the best templates and plugins: 3 sources and 18 online markets tips
You make a good point about Walkmans and newspapers... As McLuhan would point out, the Narcissus trance is present in all media technologies! That doesn't meet we should give in to the alluring trance of the Siren.

It is true that newspapermen created the Spanish-American war out of thin air as well, but we learned our lessons about the unethical use of mass print media. Irony of ironies in the name Pulitzer Prize!

I just want to make sure we're not blind to the downsides of this new "liberating" technology. It has had plenty of defenders and has swept up billions of people in its grasp.

Perhaps feeling depressed by staged photos of a friend on vacation posted to Facebook is one thing but threats of nuclear war on Twitter are a much more serious matter!
The blockchain is a towering achievement in theoretical computer science, but that wasn't the question. What is bitcoin, the currency, actually useful for?
Haha Sept 15, I should go comment on that. starts typing thinks about how many other people enjoy Star Wars Ctrl+F 'Boba Fett' D'oh.
Agreed, what I am describing is an introspective, not a blissful state. It can help to discard unnecessary bad thoughts, and to choose to pursue good experiences which one might otherwise not (be it due to fear, stigma or just not realizing it would probably be enjoyable).
Have not been able to induce a serene state via meditation, still need to work on that.
It's a combination of things: the length, the fact that it has to hold a vacuum, and the fact that it can't make tight curves. If any one of these things weren't true the problem would be easy. But they are all true, and that makes it really, really hard. (Oh, and it has to have a smooth inside surface, and it has to be manufacturable at a reasonable cost.)
Yeah, LHC's is the largest in the world at just 15,000 cubic metres -- equivalent to about 1 km of hyperloop tunnel (assuming 14ft diameter mentioned in the Boring Company's FAQ)
‘I now hate my ship’: disastrous morale on US Navy cruiser Shiloh
Cyberattack Captures Data on U.S. Weapons in Four-Month Assault
There are some modified versions of CBT that some people use with more of a focus on mindfulness. There's one called DBT, dialectical behavior therapy. For me, this was like all the benefits of CBT but with a much easier way to get to there. Although, I'm not sure what the research evidence is like for DBT. But I definitely agree that CBT feels extremely similar to mindfulness. Mindfulness is just sort of another approach to the same end result, and certainly might not be the right approach for everyone.
Out of curiosity, have you ever built anything big? I say this because the tone of your comment is dismissive, however it seems quite low-effort. I can translate your criticisms into criticisms of building subways in 1863:

- if you build a subway it will be the biggest underground railway ever built.
- Rocks. They could fall in front of a subway car and cause a huge accident.
- safety. what if all the lights and power go out? Also how would anyone breathe down there.

And my criticisms seem stronger, not weaker, than yours. Today all cities with robust subway systems benefit hugely from them and all of these issues have been resolved.

The criticism you've offered seems equally low-effort, so this is why I'm curious if you've ever helped design and build any large-scale project.

I don't like gratuitous negativity on HN and it's against the rules here.
Five things learned using terraform to manage cloud infrastructure
He could have used an octonion, then it was 1 parameter.
If you have a common filter, it is a good idea to sort your data on that field and load into cstore_fdw. This will help to use skip indexes.
https://github.com/citusdata/cstore_fdw#using-skip-indexes
does anyone know a good oss alternative to unity that supports ios and android? i'm familiar with godot but i don't know how robust it is compared to unity.
Along with what other people already responded, I think they're also pretty focused on the Ruby 3x3 project (making Ruby version 3 be three times faster), which may be slowing down the general heap of new features Rubyists were used to.
Hypothetical Nuclear Attack: Seoul, Tokyo: Human Cost of War on Korean Peninsula
Yea this is a bummer. Especially when new applications are being written in Python 2. At least write them so they are forwards compatible with Python 3 and save yourself some headaches later.
Let me be more precise: not ones that 1) will hold a vacuum and 2) are available in the 3+ meter diameter that the hyperloop requires and 3) provides the smooth inside surface that the hyperloop requires and 4) are economically viable.
Charlotte Mason Curriculum-7 Reason to Use Charlotte's Approach
True, but they don't seem obviously inter-operable (at least to non-technical users).

The same parameters input into two online SSSS generators: 3 parts( 2 reqd), secret=hackernews yield different parts.

I want to make it easy to recover. Using the same tool to store the passwords and recover the keys simplifies the process.

[1]: http://point-at-infinity.org/ssss/
[2]: https://iancoleman.github.io/shamir/
I feel that name has got to be a double entendre.
I am assured by those in a position to know that thermal expansion joints which hold a near-vacuum are an entirely solved and essentially trivial problem.

I do have some concerns about whether they're a trivial problem within this context. An engineering solution which works in small numbers for PhDs in a lab isn't necessarily scalable to mass low-cost manufacturing, deployed in the field and irregularly serviced by workers of uncertain provenance. But evidently there is a way to do this, at least.
https://news.ycombinator.com/item?id=15442636 - No more a danger than on most sites, it's just something to consider
Yeah but in this case every solution appears to be turning it into a normal train so we aren't even getting anything novel out of it anymore.
Banking APIs, PSD2 and the Future of Banks
If its so effective how come he can't pass anything?
> When Musk first said that an LA<->SF Hyperloop could be built for 1/8th the cost of the equivalent HSR, I chuckled and then waited for the punchline, which still hasn’t arrived.

Yeah, and that proposal was for something with much lower throughput, that didn't have stops along the way, and didn't even reach the same areas (they saved money by stopping outside both cities, which the rail line wouldn't do). It also assumed that the tubes could just be placed along the highway meridians (a lot of the money it was supposed to save was from this).
HN certainly did _not_ take a "not feasable" stance on spaceX's vision of a reusable rockets.
Practical distributed systems MOOC for the masses
"Reliable Distributed Algorithms" is a distinct MOOC series that packs all the knowledge you need to design scalable and fault tolerant distributed services. It contains practical examples and exercises in Scala using the Kompics framework for property verification and also introduces the LASP language.

Part 1 (starting Oct 17) and covers formal models, failure detectors, reliable broadcast, distributed shared memory and distributed single value consensus.

https://www.edx.org/course/reliable-distributed-algorithms-part-1-kthx-id2203-1x-0

Part 2 (starting Nov 29) goes much deeper by covering consensus for sequences (logs), atomic broadcast, dynamic reconfiguration, the timed asynchronous model and finally an exclusive part on relaxed consistency models, CRDTs and the role of the new LASP language (https://lasp-lang.readme.io/).

https://www.edx.org/course/reliable-distributed-algorithms-part-2-kthx-id2203-2x
You are absolutely correct that these factors should be carefully considered prior to any deployment of AWX or Tower. You are granting Tower a lot of authority to your networks and systems, and should not do so without good reason. If you don't need the features of AWX/Tower, then the best practice is not to use it. There's a tremendous amount you can do with Ansible itself, without AWX/Tower, and lots of people use it happily that way.

That being said, I think you are overstating some of the risks. You don't need to grant every Tower user root access to everything on your network. If you're at a scale where Tower makes sense, you probably already have some sort of separation of privileges. I agree that a malicious Chrome extension could do a lot of damage - just like it could with all your other management tools like DRAC/ILO, network equipment GUIs and so forth. Yes, every web application carries the risk of CSRF/XSS or other vulnerabilities, and Tower is not immune to this, but we do spend a lot of time worrying about it, conducting audits, etc.

If your operation can succeed with nothing but a sudoers rule and command-line Ansible, then by all means use that. Nobody wants to force AWX/Tower on people who don't need it. But if you do need the feature set of Tower, I think it's one of the safer options available.
Reliable Distributed Algorithms, Part 1 and Part 2 [edX]
Datacenters still are relying on spinning storage and pretty much everywhere I read will continue to for the foreseeable future.

I'm curious what the other factors are beyond just the cost per TB/PB in each rack. Like reliability over very long time scales... beyond the cost factor and into archival territory. Or in an emergency or destructive scenario (i.e. do platter drives fair better in a fire than SSDs)
AWS is probably the biggest windows customer by now. Probably a lot of ideas passed between the two.
Thanks! My entire house is Smartthings / Zwave...so the plug in this case will be perfect for me. Sounds like a fun project overall, appreciate the reply!
Elon has proposed a solution as others also already comented.

And why would large diameters not work?
Potentially, yes! Here's the post about CircleCI: https://news.ycombinator.com/item?id=15442636
This was very helpful information, thank you. I believe the new employer wants me because I have done a "lot" of phone support for them the past 2 years and have kept their plant running at the "wee hours" of the night on weekends. I have also done software extension work for them. The plant only has one automation engineer currently, and he really needs help managing everything.

Basically, if I can not do automation work for them they might not be interested in me.
Drchrono is hiring Python/Django Devs
https://www.drchrono.com

drchrono is a medical platform for doctors and patients. We are crafting only the best mobile healthcare experience, with a focus on iPad, iPhone, Apple Watch and web. The driving force of our efforts is in changing the way people engage and experience healthcare through electronic health records. You would be part of an entrepreneurial, sharp, capable and curious team. Since our inception, we have attracted over 85,000 physicians, 5.5 million patients. So far we’ve booked 19 million patient appointments and processed 1.2 billion dollars in medical billing per year.

We’re hiring Python/Django Devs! Take our healthcare hackerchallenge here!!

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>Of course, Fitzgerald points out that, no matter the power of the translation, something is seriously lost by not reading the original Greek. One of the sadnesses of the limitations of a chosen life

I'm greek and I still can't read the original, Homer's language is very difficult. I can only imagine how hard it must be for people with no exposure to any form of the Greek language
Search and install npm packages from import/require statements
Dow Jones said that Google was buying Apple, and the bots bought it
My favorite is Dropbox. "Store all my personal and/or corporate files on some third-party server?! DOA."
How to Cope with the Lack of Communication After Your Immigration
What blows my mind is the massive wealth transfer this represents.

Bitcoin has no intrinsic value. It's simply an abstract asset with no value other than what someone else is willing to pay for it. And there are no fundamentals that justify its price. So it's just pure wealth transfer from later arrivals to early arrivals. It's a zero sum game.

It'd be fascinating to chart the transfer of wealth in Bitcoin across the globe to identify the big winners and losers.
Have a look at ClickHouse for OLAP workloads:

https://clickhouse.yandex/

It's a recently open sourced database by Yandex. It powers their web analytics backend. CloudFlare is already using it for their DNS analytics.
Why Incorporation in Estonia Is the New Black
No, no. Not even close.
I like this, it captures the "this has a superficial resemblance to arguing with someone, but really there's not much in common." Potentially shorten to "Argument Hero"?
How did you end up getting people interested/wanting to participate? I feel like that's the biggest hurdle.
Miners can attack rival chains with the same PoW -- so they do have some extra power over "similar" chains.
Introducing the European EXDCI Initiative for HPC – InsideHPC
The engineering has never been a problem, vacuum-tube trains are an idea that's been around for centuries. [1] Removing friction and air resistance is a simple physics problem, and there are already operational maglev [2] trains so putting them in a low-pressure tunnel is not a major revolution.

The real issue is the viability of such a transport because of the cost, complexity, and construction effort involved. We (in the USA) can barely build a high-speed rail line effectively so a Hyperloop competing with existing transportation options doesn't make economic sense currently. Take a look at what happened to the Concorde program for a similar example of great technology that just couldn't survive as a commercial service.

1. https://en.wikipedia.org/wiki/Vactrain

2. https://en.wikipedia.org/wiki/Maglev

EDIT: Yes, the engineering effort is not easy, but the science is pretty straightforward. We're not discovering new physics here...
Typical JavaScript interview exercises (explained)
Even if your playbooks run everything as sudo, that doesn't mean you have to grant AWX/Tower users the ability to create arbitrary playbooks or run anything else as sudo. You certainly can do that, but the point of the RBAC feature of Tower is that you don't have to.
>In many ways, Ruby is one of the worst offenders.

Can you explain why? I'm curious.
Compared to what, though? I really like how everything is a method in Ruby as compared to, say, Python where it seems completely random if something is or isn't -- for example, I have to constantly remember that to get a length of an array in Python I have to do len(x) rather than x.len().

Although I like what Rust and Nim are doing with making the method/function distinction irrelevant -- there, x.f() is just syntactic sugar for f(x) -- so you can use whichever you prefer.