skysight-inc/HackerNews huggingface dataset:
Is there a cached version somewhere? Log rocket website is blocked so I can’t view it on phone.
Yeah, that's probably the right take. They are removing a stage though, the implied third stage, but SpaceX is already doing that with better rocket engineering.
Spectre javascript proof of concept:

https://security.googleblog.com/2021/03/a-spectre-proof-of-c...

The VM ones don't really have anything to do with it being a VM. Being a separate VM just doesn't save you. The VM is still a thread running on the same core as the attacker.
one popular option is to have a query whitelist, with arbitrary queries allowed either through special permissions, or just in development. setting up CI steps to auto-publish any queries used by your apps is usually pretty straight forward. this obviously only works for non-public APIs.

Another common patter is to have a way to calculate query complexity, where each field had some cost, and some multiplier for list fields so you can calculate an approximate complexity before executing a query
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You have clearly never worked in a large geographically distributed group.
I don't think the advantages outweigh the disadvantages.

G-loading. Rockets are normally rated for force in one direction (down) the same as gravity and launch acceleration. They can only handle a few small percentages of G laterally. This rocket would need that, plus at least a few G of lateral acceleration for spinup and a massive negative G capability for the impact with the lower atmosphere immediately after launch.

Was there a G-meter on this rocket/dart? What did it feel like to go from thousands of mph in a vacuum to suddenly thousands of mph at sea level? 50g? It would be like slamming through concrete. Larger rockets would no doubt feel less of this impact but they would still need structures akin to fighter jets. Those structures would be heavy and likely nullify any fuel savings.
Maybe they can redirect the ejected mass away from the launch site with a huge curved underground tube Mythbusters' style: https://www.youtube.com/watch?v=73FFitene58
> At the end of the script, the overall elapsed time and the geometric mean for all the queries is computed directly by querying the history view of all TPC-DS statements that have executed on the warehouse.

The geometric mean? Really? Feels a lot easier to think in terms of arithmetic mean, and perhaps percentiles.
> Tellingly, vaccination wasn't a political or controversial issue for many decades in the US.

That's because we've never gone from "a vaccine doesn't exist for this disease" to "literally everyone in the world needs to take this new vaccine right now" so quickly before.
Ah ok. Wasn't clear. I think some repro scripts will be available soon.
I'll be all for bodily autonomy when people who are too gullible or lazy to get vaccinated stop clogging ERs because it's too hard to breathe. Hospital beds are a finite resource and those who do the right thing shouldn't be denied medical care because those who refuse to don't know how statistics work.
> It's extremely hard, expensive and take very long time to give up US citizenship. Reason? Lots of people are doing so.

Is that so?

"A record 6,705 Americans gave up their citizenship in 2020" [0]

"In fiscal year 2019, about 800,000 immigrants applied for naturalization" [1]

In a country where 800 thousand people apply for naturalization in a year, I would hardly call "the record" 6000 Americans giving up citizenship in a year (less than 1% of the ones acquiring it, and 0.002% of the population) "lots of people".

Also, I would bet the bureaucracy, difficulty and time required to immigrate and naturalize in the first place, far exceed those required when giving up citizenship.

[0] https://www.prnewswire.com/news-releases/americans-gave-up-c...

[0] https://www.pewresearch.org/fact-tank/2020/08/20/key-finding...
If your colleague had thrown him out of the window the world would be a better place. Think on that.
Anything similar for Vim?
The whole post shows the author hasn't fully understood what GraphQL actually is, and why it's used.

But this one:

> 6. REST is better for error handling and tooling

> Error handling in REST is easier when compared to GraphQL. RESTful APIs follow the HTTP spec with regards to resources and returns various HTTP statues for various API request states. GraphQL, on the other hand, returns the 200 Ok status for every API request, including for errors. This makes it difficult to manage errors and makes it hard to integrate with monitoring tools.

This is a misconception that seems to be quite hard to shake.

Yes graphql returns 200 OK even when there's errors inside the response. But thats not a bug, it goes to the design of the whole thing.

Think of graphql as a data transport layer.

Any HTTP code that indicates an error is likely unrelated to your query, and is usually handled somewhere else. For example if you get a 4xx response your auth token is probably expired.

Any errors in your query in a well designed schema can be seen inline.

type Me {
name: String
email: String | AccessDeniedError
}

If you weren't allowed to access `me.email` you'd get the type `AccessDeniedError` which you can handle directly in your code.

Instead of having to chuck out the whole query and return a HTTP Status code.

GraphQL can also be sent over web sockets. HTTP means nothing to it.

This talk explains it way better than I just did, but note it's a really powerful feature.

https://www.youtube.com/watch?v=RDNTP66oY2o
Both NumPy and Django were created in 2005, but Numeric, the ancestor of NumPy, is nearly as old as Python itself, and predates SciPy.
Every day we stray further from God's light. But memes aside, very technically impressive.
I've started blogging again. My reasons are:

1. Journaling. I think time went by really fast with the lockdown. It's been 2 years but it looks like nothing happened, when in fact a lot did. There are bits of evidence of my work in social media, including HN, but quitting FB made me lose some of that evidence. And the evidence of my past existence was one of the things keeping me from quitting social media.

2. A variation of your c, to understand a topic better. Most of the time when I write something here, it's to have my thoughts criticised. But that's not even necessary most of the time. Once thoughts are down on text, there's plenty of holes for self-criticism. Blogging puts it out there in a form that welcomes criticism, which forces you to iterate on your thoughts.
The impact of the Beatles pales in comparison to the impact Myle had on Japanese Jazz?
We might get a couple or ten good years out of that, but it would leave an ecological void in human affairs to be filled in by bad actors. "Better the devil we know" is an unfortunately potent argument supporting the West's intelligence community.

Better legislation to restrain their abusive tendencies, and an endless global push for human rights, liberty, and human well-being is a solid long view, I think.
Geometric mean is commonly used in benchmarks when the workloads consists of queries that have large (often orders of magnitude) differences in runtime.

Consider 4 queries. Two run for 1sec, and the other two 1000sec. If we look at arithmetic mean, then we are really only taking into account the large queries. But improving geometric mean would require improving all queries.

Note that I'm on the opposite side (Databricks cofounder here), so when I say that Snowflake didn't make a mistake here, you should trust me :)
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Did anyone see that coming?
For the lazy, https://invidio.xamh.de/watch?v=D1sXuHnf_lo (or other Invidious instances) for an age restriction bypass without a Google account
New target for Covid-19 vaccines identified
I disagree. Maybe it seems great if you're used to Windows or Mac, where it has always been normal to download files from 50 different websites and run them. No GPG keys, no trust, just run it. I've been using xubuntu for years, and have gotten used to having the command 'apt-get install <whatever>' install an app that integrate with the desktop by default, and a single command to upgrade all of my shit. Suddenly, because application packaging is old and boring, I have to care about some file I'm downloading and from some website. And then I have to install some other hack to properly integrate "images" into my desktop (which doesn't always work, so you create an issue on the hack project and the maintainer bitches about 'badly made AppImages') ...

Next thing you'll be telling me that I should be installing antivirus to make sure the plethora of downloaded files don't contain malware.

And if I don't bookmark all the sites where I'm supposed to get these images, I have to hunt them all down again. And if I don't bother doing that I'm running old versions of everything.

Screw all of that and give me my apt-get install / upgrade.

For the two AppImages I am forced to use, I actually ended up writing a bash script to download them, mount them and build a .deb file that does the desktop integration. Then I push the .deb to my own repo, so apt-get install/upgrade works across all my machines again.
> Does it do time tracking

Please upvote this feature if interested (org has a rich feature set, gotta prioritize)
https://www.reddit.com/r/plainorg/comments/qo2aps/feature_re...

> habit tracking?

This one I got covered in https://flathabits.com
Show HN: A multi-level cache library with stampede prevention for Go/Golang
(a+b)+c has two ops in LLVM: addition is a binop, meaning it has two "arguments", thus (a+b) and adding "c" are separate instructions. You can't directly add three or more values.
I think the comparison was Snowflake vs Databricks SQL. Databricks SQL is a PaaS service just like Snowflake. Also, it uses their Photon engine, which is a proprietary engine written in C++. It is not Spark.
* Databricks is unethical

* Nobody should benchmark anymore, just focus on customers instead

* But hey, we just did some benchmarks and we look better than what Databricks claims

* Btw, please sign up and do some benchmarks on Snowflake, we actually ship TPC-DS dataset with Snowflake

* Btw, we agree with Databricks, let's remove the DeWitt clause, vendors should be able to benchmark each other!

* Consistency is more important than anything else!!!
I lost it at "Nintendo Switch Joycons (Rumble only)"
I feel like if you considered an average developer most people are writing API-like services that talk to a database and a few various APIs, payments, email, notification services, etc. ML is kind of a niche area where Python definitely excels and almost stands alone, but web frameworks are a dime a dozen, and every language pretty much has a postgres or mongo client.

"Much of anything complex" probably wouldn't hold true for most developers...I mean, it's all complex given technology, but 99% glue code that can be written in anything. That's generally true for me at least.

I have been bitten by lack of libraries for things like Cassandra in the past and switched languages because of it, but that's the exception and not the norm for me, and you really have to choose the right language for some projects. Or have some kind of architecture where you can have different parts in different languages.
An Emacs mode used to view/edit org markup https://orgmode.org
Why spend money you don't have?

If you do have money, why do you need to borrow money you already have?
If you click view mode in the top right the original is shown. Suggestion mode, not edit mode is enabled.

Edit: I scrolled down and saw a picture of a very young child (clothed thankfully) and a decapitated penis. I would suggest people avoid the document
rr is capable of very limited diversion from the originally executed trace. This functionality exists to support things like `call myProgramObject->dump()` in gdb during replay. It will give up immediately on any non-trivial syscall though.

Being able to change something and explore another execution path is interesting but it's extremely difficult to do in general. I think it would be very useful for verifying fixes, which is something that tools like rr are not particularly helpful with.
This is strange, so it is likely that it might be more of a Java problem than a CPU problem.

I do not know how Java handles this, but maybe it actually enables exceptions for underflow which invoke some handler.

Otherwise I cannot see how you can obtain such a huge slowdown, unless your code consists entirely of back-to-back operations with denormals and of nothing else.

I am not sure what you mean by "state variables", but if they are pushed into the denormal range, they should be changed to double, not float.

If you push double variables into the denormals range, then it is likely that the algorithm must be modified, because this should not happen.

Underflows, i.e. denormals, are difficult to avoid when using float variables, which can be mandatory in DSP algorithms for audio or video, but outside the arrays processed with SIMD instructions at maximum speed, the scalar variables can be double, which should never underflow in most correct algorithms.

For computations run on CPUs, not GPUs, only very seldom there can be reasons to use a scalar float variable. Normally float should be used only for arrays.
Compare the SpinLanch rocket specs [1] to Electron in [2].

Payload: 200kg vs 300kg

Height: 6m (est) vs 18m

Wet mass: 11t vs 13t

Stage 1 thrust: 75kN vs 230kN

Stage 2 thrust: 5kN vs 26kN

Engines: Pressure fed vs Electric pump fed

The SpinLaunch rocket dumps its shell before turning on its engines, and presumably has much lower gravity losses, so despite shockingly similar wet masses, the rocket and its engines can be greatly downsized.

I don't have any solid opinion about the concept, but it does seem like “smaller tanks” is maybe not the best description of what is a fairly significant design change. You do shed a lot of complexity from the propulsion systems, but I'm far from sure the stuff you add is any cheaper.

[1] https://player.vimeo.com/video/573539093#t=26s
[2] https://en.wikipedia.org/wiki/Rocket_Lab_Electron
So we can be assured of internet coverage even in the case of a nuclear holocaust? Google and Facebook are launching the balloon based service and selling ads tomorrow :)

On a serious note what can the practical implications be to f this?
In my country that would be illegal. Here, the price is fixed first, and the customer has the right to choose any supported method of payment.

Merchants are free to offer more reward points or discount coupons for cash payments, though.
People downvote this comment, but my company wouldn't open an office in Portugal after this if there are other options.
Only if you want cash immediately. In this case, the fee is basically insurance against the check bouncing. It's free if you instead deposit the check and wait a day or two for it to clear before withdrawing the cash, since in that case they can just take the money back out of your account and not suffer any loss if you gave them a fraudulent check.
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Russia, France, Spanish crown, Ottoman, HRE all claimed to be successors of Rome at some point.
Like it or not protecting people costs money, with credit cards banks have an opportunity to potentially recoup that, otherwise they don't do that at all or only do it when they can afford it.
Yes, a compiler would at least add a combo of rep movsq + rep movsd + rep movsw to the mix before finishing the final remainder with rep movsb. Vector instructions might help tremendously too.
I wonder if it would somehow be possible to very temporarily decrease air density on the flight path. Heating it or firing a vortex or something.
Huh? Clifford and Cayley-Dickson Algebras?
The Vado is also twice as heavy. The SL is super light so that heavy battery is hauling a lot more weight around. The SL is for those who still want to cycle. The power of the normal Vado basically makes you redundant.
I have a Chrome extension, and last year we added an uninstall survey, which opens in a new tab after the user uninstalls the extension.

The completion rate is an insanely high 20%. It took me a while to figure out why we were getting such a high response rate. Eventually I saw that some people were complaining about the survey being mandatory, even though obviously it is not (you can just close the browser tab…).

I think this is because at the top of the Google Form, it says something “ * Required “ in red text at the top. Instead of being interpreted as “an asterisk means that the question is mandatory”, some people were interpreting it as “you are required to fill out this survey”.
One of the unfortunate things that goes along with this, from my experience, is that those area can be absolutely filthy. There was no janitorial staff for the cube farm I was briefly in. Everything had a layer of old dust and grime on it, and we wiped everything with wet wipes. Men In Black it was not.
So Anonymous Ruby blocks act like (or are) Procs (which return from the parent method), not like lambdas, would you say that?
The Soviet Union went down pretty fast
This!

The funny thing about no code is that after delving into it for 6 months as a non-technical person and realising its limitations it pushed me to start my code learning journey again.

It has its purpose for prototyping and some early validation but...

It gets expensive... it gets fragmented and you are closed down to one ecosystem (hello Bubble).

I hacked things together with airtable, Webflow and Zapier. It aggregated to hundreds of dollars per month in costs. I also found myself constantly trying to find some workarounds and in fact there are additional app extensions to Webflow that allow to create even basic functionality like search or multi-filters.

Long story short it has its place for specific purposes but even then I would still rather learn how to spin-off netlify or vercel and put a boiler plate with mailchimp online to test my hypothesis rather than mapping data strings in Zapier for as simple as form collection fields.

I though must thank no code for getting me back into code! I am still a newbie but I am enjoying every moment of my javascript journey (is it a masochistic thing to say considering all the frustration with bugs?)
I'm trying to correct the implied claim repeated in this thread that the ideal descent can be used to model every descent.

Oddly enough, nobody asked that question.

I'm not saying that a continuous descent is actually guzzling gas like crazy.

Well, at least you're admitting as much.

For a trip segment, takeoff and climbout are the initial high-fuel-flow phase. Note that LTO (landing and take-off) data are based on flight segments at and below 3,000 ft. AGL, which is 1/10 or less of cruise height of FL30 -- FL40. See Fig. 1 of your reference. The LTO data (limiting climbout / descent phases to <= 3000ft) are relevant to local emissions concerns near airports, the focus of the paper, but not to total fuel / emissions of an entire aircraft flight profile as we're discussing here, and omit 90%+ of the relevant climb/descent characteristics. As discussed in the paper.

Figure 2. also provides a strong clue as to why the LTO data show lower total fuel use in the approach vs. climbout phases, again, <=3000 ft: the aircraft monitored are spending 2-5x longer in the approach phase. That is, they're climbing out steeply, with very high fuel-flow rates, whilst they're descending slowly (and hence, spending more total time <=3000 ft) at a much lower fuel-flow rate.

Again: you're wrong, given your own cited reference.

https://www.mit.edu/~hamsa/pubs/ICRAT_2014_YSC_HB_final.pdf
On a related note, Windows has a dedicated kernel thread solely for zeroing out freed memory, so, a new page allocation won't worry about zeroing the memory itself.
Yes, this is a good point - the Chinese government has been encouraging full technological and also broader market independence at home for years now. Seems a strange talking point.
Do you think insurance should refuse to cover medical costs for anything caused by smoking or obesity? If not, why the difference?
Are you driving the s-pedelec on bike lanes in NL? It’s illegal to do so here in Finland although it’s not well enforced and no way am I riding in traffic here. You’re also required to have a license plate for the s-pedelec here also.
>flaccid

I see what you did there.
> I'd hope so if they're selling a product based on FOSS code, there has to be a value add to justify it

They have some proprietary features like DBIO [1]. They also have some cloud-specific features like storage autoscaling [2] that would not be available in OSS Spark. Even Delta Lake [3] used to be proprietary, but I suspect the rise of open-source frameworks like Iceberg led them to open-source it.

Shameless plug - when working at a since-shutdown competitor to Databricks, I'd come up with storage autoscaling long before them [4], so it's not unlikely that they were "inspired" by us :-) .

1. https://docs.databricks.com/spark/latest/spark-sql/dbio-comm...

2. https://databricks.com/blog/2017/12/01/transparent-autoscali...

3. https://delta.io/

4. https://www.qubole.com/blog/auto-scaling-in-qubole-with-aws-...
This is a weird and ambiguous post, especially if you read the part about vue, aurelia and ember.

And it makes 0 sense to compare usage of a framework with some arbitrary extra features of a language.

You could at least say the more features we have in the js std lib the less random crap people will insert from their package manager.
I wonder if this is an AI-generated article. It shows so little understanding of the actual macro-trends while stringing together a bunch of related topics and definitions, I don't think it could have been written by an actual human.