skysight-inc/HackerNews huggingface dataset:
Kind of a sword vs shield thing as most things in the military.

There are sonar decoys. They aren't easy.

You also have to have it rigged ready to go with very little notice.

The other aspect is that these torpedoes can still be wired to the ship so you can continue to use the host sub's arguably better passive sonar systems and let the attacking torpedo get VERY close.

As with all things in submersible conflict the first person to be heard is dead.

The other aspect of your decoy system that you might not be thinking about is that you've
a) compromised the hull with holes
b) you are going to make a LOT of noise firing those off
c) your sonar signature might go up dramatically when the doors are opened etc.

The hull actually has something similar to stealth coating (but for sonar, so easier to develop cuz it's against sound waves) on the hull. You really don't want to mess with it too much.

Sub warfare is insane. There isn't really a strong counter to them in the open ocean. USN Carrier groups are especially vulnerable (at least from exercises I've read about).

Your idea isn't bad. Just make it a towed array that pops off a bunch of really loud shit 1000m behind you or something.

This would eventually turn into a cat/mouse game of who can make a better system for detecting decoys vs fooling torpedoes.

If you read up on china's new hypersonic missile system you can get a feeling for why this shit is terrifying sometimes. Fractional Orbital Bombardment System is new and very scary for the USA missile defense systems. They effectively shrink the "we can see it range" down to a very small amount of time to respond. Combine that with MIRV warheads and decoys and it's a nightmare.
When the homepage of your "fast" product takes 5 seconds to load word-by-word marketing crap I just close the tab.
No difference, it is just a matter of preference and selecting the best tool for the job. Often times the best tool for the job is the one that you know how to use really well.

If you’re good with Laravel for example, no need to switch to Django or Elixir and vice versa. Stick with what you know and you’ll be a happier developer.
NASA could have built two or more as backups, as most of the cost was in R&D it would have been (comparably) cost effective to do so.
> We want 'order' first, which can enable a bit of prosperity, and then the slow grind to basic freedoms, it's generally the only path.

Why did you invade Iraq then plunging it into total chaos and support ISIS in Syria against the Assad regime? Why did you overthrow the Gaddafi regime in Libya. All of these actions have led to an incredible destabilization and power vaccuum in the entire region, completely destroyed the 'order' you claim you want, led to the rise of terror groups in the region and to a migration crisis of epic proportions.
It'll be a Starship mission with astronauts to go work on it at L2 in 2023/4 then.
The cipher list here is the full list _offered_ by the client, this isn't about the final single cipher that's selected and used.

Yes, most aren't used for many real sessions, but they're all still supported and available for fingerprinting. The selected cipher isn't relevant.

The quadrillion total meanwhile it the total number of _permutations_ not the number of ciphers.

In local testing, every single client (e.g. curl, Firefox, chrome) I've seen sends between 15 to 35 options in every client hello, which already gives you a huge number of possible permutations, though you couldn't really reorder them completely freely without real security implications.

As in the article, the extensions are more interesting for increasing permutations though, since order there really is totally arbitrary.
> The Drive could not reach out to Tesla to verify or contest the claims, as the automaker dissolved its communications and public relations department some time ago. The New York Times says that neither Musk nor a top Tesla lawyer responded to requests for comments over several weeks.

I always thought it funny that Musk saw this as some sort of 4D chess move and not a tacit admission that his company's products/behavior suck so much, he had to effectively nail a "No comment" placard on the front door.

You know what would be awesome? Say negative PR about Tesla comes up, and someone from Tesla calls/emails/tweets a reporter to provide a statement...the reporter ignores them, or tells them to go pound sand, because given Tesla does not have a communications or public relations department, someone from Tesla couldn't possibly be contacting them in an official capacity to provide an authorized statement.
I'm reading your write-up of this sorry saga. (Seriously, great good writing and great explanations.) And I'm thinking "If this kind of stuff is going on, am I supposed to take Bitcoin seriously as either a currency or a store of value?"
i build in the past a few times APs with compex cards. the problem it's that some of them have extra large form factor and won't fit standard mpcie slots. i had to build an adapter :/
eventually instead of upgrading to new iteration i got a couple of netgear r7800 and flashed them with openwrt.
the router is on separate x86 box
Roughly 6 months after launch for all systems to cool to operational temperature.
The author and others must be much more in demand than I am.

I don’t find that I get to dictate interview scheduling a great deal. But then again I haven’t interviewed in a while.
> 1. Music is not “inherently social” - it is just as often anti-social

Or, as one of my favorite metal bands put it when asked about going on tour: "Our music is a solitary experience."

From: https://www.invisibleoranges.com/interview-blut-aus-nords-vi...
From what I've seen on naval ships you'd launch it to the side that is incoming so you'd be behind the wall of Chaff. I think that would be significantly harder to triangulate because you'd mostly just see the noisy stuff up front and your original target would be behind the wall of chaff.

Chaff is also designed to reflect signals all over the place so that it's difficult to get accurate results back. This would make triangulating near impossible (if it's working as intended)
Hair Metal in the title had me interested, and this didn't disappoint. Thanks OP.
It seems to me that there is still a lot of for small entrepreneurs to launch cloud services that the big providers do not address properly.
Blaylock on Vaccines: What You Need to Know for Informed Consent
Please don't do personal attacks on HN. The damage to the ecosystem outweighs any benefit such harshness provides. You can make your substantive points without that.

https://news.ycombinator.com/newsguidelines.html
The one you don't throw away after two years because the industry has convinced you that something new is better.

But there's a distinction between losing access to SO, which shouldn't be a hardship, and losing access to online material in general. The latter would be unreasonable.
The whole conversation around displacement is people being pushed away from where they grew up.

It’s just not reasonable to say, “the houses I saw growing up cannot change”
> I'd love if the vaccine worked
Ummm, it does. Really well, too.

> I'd love if the vaccine worked and I didn't have to hear about Covid ever again in my life. But obviously that's not going to happen and there isn't a plan for it to happen.

There isn't a plan for it? You dork. Knock off the stupid political conspiracy theory garbage. It'll never go away specifically because a ton of people won't/can't get vaccinated.
sounds like fluid vs crystalized intelligence, see https://www.betterhelp.com/advice/general/what-is-crystalliz... for more info
Show HN: git-history, for analyzing scraped data collected using Git and SQLite
Aside from the general crankery of this musing, you realize that us being able to discover FTL travel would depend on the underlying physics being simulated deeply and accurately enough in the first place, and probably with some headroom?
> Interestingly enough, the absence of ChatOps isn’t a deal-breaker for developers—a mere 8-12% said not having one of these tools would make a company unappealing.

Maybe if you're working in an office.

But working from home, I'd find my job brutal without a tool like Slack/Teams. Long response times from emails and it'd be very dry as the 'IM' style chat allows for a bit of banter like GIFs/'private' chats etc.
Running GVisor in Production at Scale in Ant
Also summarized in this Twitter thread: https://twitter.com/simonw/status/1468348488379367426
Forget the number of regions. Monitoring for X shouldn't even be hosted on X at all...
Haskell has a traditional C-style stack, but it's usually very small (a few KiB). The evaluation model is very different from most other languages; recursive definitions do not necessarily result in recursive machine code, and almost all allocation is done on the heap. Certain rare forms of pathological code (not recursive definitions in general) can result in stack overflows. The cause is usually something like extensive recursion (which here includes iteration) without any other memory allocation or thunk evaluation.

In any case, the point was not that we should all use recursion on Church-encoded Peano numbers for computation, since that is obviously very inefficient, but rather that tail recursion in particular—which does not result in excessive stack use, when implemented sanely—is a more general construct than iteration. It can be used to implement iteration, of course, but also other control flow patterns like state machines and coroutines which would otherwise require additional language support. The only major obstacle is poor language implementations, mostly for imperative languages (including Java), which insist on storing contextual data on the stack which is provably no longer needed by the program. Kotlin is a bit better but still hampered by the limitations of the JVM, so some kinds of tail calls (not direct recursion) still use stack space. EMCAScript 6 specifies guaranteed tail-call elimination, which should benefit Typescript, but Safari appears to be the only major environment which gets it right so far[0].

[0] https://kangax.github.io/compat-table/es6/#test-proper_tail_...
I think the issue is more at many places people don't feel empowered to just go and fix/build something. I've worked places where if I pull stuff in from the next sprint my manager gets annoyed because it screws with the metrics being reported, and where if I were to start any projects started on my own initiative and it was noticed I'd be reprimanded or at best be given busy work instead (some fuzzy bullshit task which I'd hate). Because of this whenever I had down time I'd goof off instead of say, writing optimizations to our parser which was slowing down a big data ingestion process.

I literally did start doing that once when I had nothing on and I basically told "yeah it's not worth your time because it isn't billable". Of course later clients complained it was slow and I was told to look for optimizations (but not to that part, because that part was complicated, even though that part was the slowest part and I had already half implemented something).
https://news.usni.org/2019/08/09/navy-reverting-ddgs-back-to...

Fucking bad from what I've read. It's a really bad problem still and the USN needs to correct it by having a tighter integration with the HW/SW people and the actual soldiers/sailors.
> Tommy used to work on the docs.

Nice
>I read somewhere that Microsoft intends it to be mostly for new computers.

They are pushing developers to it as well. See new WSL features as an example.
It certainly does. Pure inertial guidance with smartphone sensors is garbage. I must say I'm a bit startled by how many people evidently think that GPS is an internet service...
I don't think AWS knows what's going on judging by their updates, yes DynamoDB might be having issues, but so is IAM it seems, we're getting issues terminating resources for example.
If the R&D is done anyway, why not just wait and build a second telescope if the first one fails? I don't see why that would be any more expensive than building a backup ahead of time, and it means if the first one fails due to an undetected design flaw, they have a chance to correct it.
Civ Eng graduate that ended up in IT here. For home projects, please consider gabions as well as the usual suspects when you are building retaining walls.

A gabion is a galvanised steel wire cage say: 4' x 4' x 2' (HWD). They have a hinged lid and you fill them with stones and then wire the lid shut. Sounds stupidly simple, and it is but they have some rather useful properties. Each unit is an easy one man lift, place and fill. Once filled, each one nominally becomes a large single block with great drainage properties. You can wire these things together into long rows. They work very well with water courses because they are easy to fix in place and once filled, won't move. Pouring conc. into formwork is a right old pain in a fast flowing river and it is all too easy to lose the finer particulates before the stuff has gone off (set and cured).

You can finish the exposed surfaces in various ways. You can pour soil on top and grass them, pour a bit of low grade conc and gravel for a solid "path". The cages are not particularly pretty but neither are they particularly ugly.

If a single cell fails then it generally won't cause much surrounding failure and is easy to replace or repair. You can embed fancy anchors inside them if you have a lateral thrust to resist that can't be dealt with by sheer mass.

Sleepers and the like are quite convenient but you must consider drainage otherwise they will rot within a few decades. Block backed brickwork needs a decent brickie to lay them and if they fail it is usually rather bad. I'm no brickie but I've just repaired a broken 3' retaining wall at home and it looks a bit shit. I will be hiring a professional to sort it all out in spring. Here a gabion wall is overkill!

I did say home projects above but these things are used everywhere and that includes some pretty huge retaining structures. If you are not a Civil Engineer and need to build a decent sized retaining structure then I highly recommend that you consider gabions first because you are far more likely to get it right first time.
"ChatOps" refers to using chat bots for development/deployment steps, not to "having company chat": https://www.pagerduty.com/blog/what-is-chatops/ (random promo article picked from Google, but it gets the point across). Although I guess it's an interesting question how many of the 8-12% quoted thought it meant that.
Zenit was reusable. The reusability elements were later removed because nobody demanded them.
Huh. We use threads. I've taken time off. I felt no obligation to go back and read every possible thread. Why would your coworkers expect anybody not in the thread to see sudden participation in a month-old thread? Mine sure don't.
Exactly. And I’m surprised AWS doesn’t have failover. That’s basic SOP for an SRE team.
Hah, I posit that there is a _very_ low possibility of buying someone to care about your problems.
> Developers value flexibility and opportunities to learn at work

There survey may touch on this later, but looking at the graph above it, it was pretty clear that developers were willing to sacrifice flexibility and opportunities to learn for a higher salary.
Interesting, I also initially read it with a negative impression, e.g. "this blog constantly fails to impress me", even though that's the opposite of what the sentence says.

Not to derail the topic, but anyone have any insight on why that might me? Pretty sure it's fine, idiomatic English. Am I just primed to expect negative criticism in HN comments? :/
Possibly. Maybe I remember the 'good old days' too fondly: where opening any kind of application would take upwards of 5 seconds and often into the minutes for something large like Word :)

For me anything that loads before I even have the time to think about the fact that it's loading would not be considered 'slow'.
> Not as good as GPS obviously

It is GPS.
only an engineer can tell you what your factor of safety is. Your other option is not knowing how sufficient what you built is at all.
From some time around that first simulation (early 1930's), the "plan an attack on Pearl Harbor" problem was in the curriculum of the Japanese naval academy. Hawaii was known to be teeming with Japanese intelligence assets at least since the time of WW1, and its strategic importance had been well known at least since the US had made a point of acquiring the place.
The article mentions several construction techniques that rely on steel for structural support. (I don't mean just during construction; I mean in the finished product.)

But my understanding is that steel always deteriorates over time, especially when in direct contact with moisture or cement.

So does that imply all such structures have a lifespan that's counted in decades, and that maintenance basically requires major surgery to replace the steel?
Re: discovery, I’m surprised no one has mentioned TikTok. It might be the most successful music discovery engine out there.

> 1. listening to records with a friend 2. going to a dance club 3. attending a live performance 4. listening alone while reading liner notes 5. pawing through a stack of records at a flea market 6. reading a book

All of these things point to the fact that listening to music is about cultural participation as much as anything else. And TikTok represents a culture and many subcultures, and seeing people you already like (people you follow) appreciating a certain type of music is powerful.
Yet we are seeing some companies leave places like CA for TX. So it does happen.
I can’t recommend Bitwarden[0] enough.

For me it checks all boxes, and includes some other other nice-to-have’s:
- open source
- has mobile/web/desktop/CLI clients
- can be self hosted

[0]: https://bitwarden.com/
If you looked at the code for the old XP Notepad, it was the Windows standard text entry control resized to full screen.
Orly? Rekt.news has some juicy details..

https://rekt.news
Some big companies use a lot of internal tools for which Google/SO won't help.

Also, for some niche languages or recent libraries, it can be hard to find answers for very specific issues.
I've been experimenting with using the UDC as a classification system for my personal electronic library, with some success. Interesting read.
I am probably going to get downvoted for being cynical, but why there is so many hacks among scientific community and they are not being excluded?
How do you know when you donate money to a cancer charity whether it is a scam or they are actually doing sensible research?
I am grateful that there are people who do such check ups.
Give Inconsolata a try, I moved on to that from Consolas after I got tired of hunting down a copy of the font and manually patching it each time I set up a new workstation.
If you don't want to use the cloud KeepassXC on macOS and KeePassium or Strongbox on iOS are probably your best choice. Personally I'm happy with using Bitwarden, which you can self-host.
I really miss the Thinkpad docking stations that existed on the bottom of your laptop. Yes, they were proprietary as hell. But they were also some of the coolest, most convenient connectors that existed. I know USB-C docks are technically better for a plethora of reasons, but I still find myself missing the Nintendo-Switch-like convenience of dropping my laptop onto my desk and watching my monitor and peripherals spring to life. Every time I did I could almost hear Jeff Goldblum saying "there is no step three" in my head.
I largely view them as the same. What is 'walled' in your eyes?
Borrow a few hundred billion dollars from investors, aquire a major defense contractor like Lockheed-Martin, and have your lobbyists get Congress to insert a sole-source VMS replacement line item in next year's defense budget. Simple.
Ultimately Google will just give some desperate Afgan kid a 100 dollar bill and a smartphone.

That kid will be killed a few weeks later and replaced by a new one. The new journalists.
I understand that, but eventually they need to evaluate performance, for promotions, demotions, raises, cuts, hiring, firing, etc. How is that done?
The Thomas Guide is back. Why seemingly obsolete map books will publish for 2022
I also use Sway for pretty much these exact reasons. It's really wonderful software!
You'd be a lot less enamored if you were on or near roadways on foot, bike, or motorcycle. Or drove a truck or vehicle with a trailer.

There are several self-driving vehicle projects that have logged far better safety records than human drivers.

They have radar and lidar units.

Musk has insisted on solely cameras, which are far cheaper, but suffer from a slew of entirely predictable vision problems. Just hit up youtube and search for "tesla phantom braking."
> The one you don't throw away after two years because the industry has convinced you that something new is better.

I know you're not the person I asked, but if you also find that you don't need to google things regularly while working I'd love to know the actual tech stack.

I've been using HTML, CSS, and Javascript for more than 5 years for example, and I still google things at minimum once a day, and SO usually has a prominent answer.
It provides Broadcom with value by making Linux distros stable on their chips.
>So it becomes "minutiae" when the facts don't support your argument.

You've honed into one small aspect of my argument and ignored your own counter argument that you've made. I don't understand what point you are trying to prove. It's minutiae because, as you've already shown, Singapore has amazing schools while having incredibly high population density. The link between school budgets and performance is not completely divorced as it has been shown within America there is a correlation. However those arguments, and the research behind them are simply not relevant to the current discussion. The claim was schools in dense neighborhoods are worse. I claimed that funding was a far more important factor. You've shown that Singapore has exceptional schools in the densest urban capital.

>I can walk (and do so every day with the dog) to a corner mall with two Chinese restaurants, Japanese restaurant, water store, sandwich shop, nail salon, barber shop, florist, watch repair business, dental office, tea business, pizza place, health food store, bike shop, post office, Safeway, IHOP, and Chase bank branch. Plus a very large Chinese restaurant going up where the Rite Aid used to be.

It's also snowing in Denver so global warming must not exist. Like seriously, what are you trying to argue here and what does it have to do with high density development?

>No, but some people prefer it to urban squalor.

Again, there is a mountain of options between San Jose and Manhattan and these cities have existed in Europe for longer than America has been around. To consider a city like Amsterdamn "urban squalor" because they have mutli-family zoning is just ignorant. Children can walk to school in the "urban squalor" of Amsterdam (which is almost 3x as dense as San Jose). San Jose still struggles with having sidewalks in many areas.
I think I explained it poorly. I used "gradient descent" colloquially there, I just meant following the 'flow' in your vector field like you might in actual gradient descent. (Yes in this case it'd be Euler's method, and you can add whatever bells and whistles you would add for GD like to choose step sizes and whatnot.) I'm saying you might still be able to find the zero of your function by doing that. That neither implies that Newton's method would have performed better on your problem (it may perform better, or it may not), nor does it imply that your vector field must have been a gradient of anything. Right?

Whereas you're saying "given that you're doing Newton's method, I don't think one problem is easier than the other, right?" as if Newton is somehow guaranteed to give equally good if not better results than e.g. Euler when your vector field isn't a gradient... which I don't believe it is? Certainly there are cases when that happens but it's not implied, right?