skysight-inc/HackerNews huggingface dataset:
No because relative speed between the two vehicles is different then stopped objects.

These two things are treated differently by a radar system - imagine you are driving in semi AV mode and you come around a turn and there is a vehicle on the side of the road stopped (i've been in this situation). For a hot second the car is pointed right at that fixed object and is probably still processing the lane curvature (if it can at all, some adaptive cruise systems don't have lane monitoring). The vehicle will ignore the fixed object and keep going as to not slam on the brakes which can be very dangerous.
The first one is a moving object, so it can't be eg. a traffic sign.
Oh come now. There are a lots of orbiting objects that cause bright flashes. The flashes this particular object causes are not even that bright. I suspect that anyone who pointed this out were not quoted... Particularly the astronomers who thought the whole thing was awesome... Astronomers are bothered by any sunlight illuminated satellite. This will make no difference at all to their lives.

* https://en.wikipedia.org/wiki/Satellite_flare
Part of CMOA's wonderful Invisible Photo doc:

http://www.nowseethis.org/invisiblephoto

Amiga games are so important to the history of game development and design. Could the brand could be resurrected if willing investors were to arise?

Amiga Documents:

https://sites.google.com/site/amigadocuments/
Safest countries for women
That CPU time sounds reasonable for just 2-opt but I've found that 3-opt takes longer for tours with that many stops. The quickest strategy that involves 3-opt is to do a run of 2-opt followed by 3-opt, but for instances with 500 stops this can take nearly a second to run, even after parallelizing and optimising the code.

The tools you use will also make a difference. Python is difficult to make as performant as C.
I empathetically agree with #1 but object to #2. Datomic, on an architectural basis alone, is going to be strictly faster than say an RDBMS, because it can parallelize almost all of the workload. Read-side is entirely elastic; index and storage maintenance does not block the writer, and the single operation that must be serial is the actual ACID write primitive, the conditional-put to DynamoDB. In RDBMS, the ACID writer is competing for resources with all these other operations, because they can't be parallelized without sacrificing consistency.
Haven't you seen The Astronaut Farmer? Billy Bob had a hell of a time getting permission to launch himself into space. Had to finally just do it.
I started running my own email server around 2014. I am using every mitigation I can find, but I still get an unending torrent of spam that slips through.

If tweaking spam filters and deleting spam is your idea of fun, then run your own email server.
Consider this:

People order pills online on an anonymous site designed for people to be untrackable, using anonymous methods of payment, and then ingest the aforementioned pills they received in the mail from China without a second thought.

I would say compared to getting poisoned with unknown substances, trouble with the law seems like a distant secondary issue.
Agreed. We won't ever get autonomous systems. I don't think that should even be a goal for production cars. We'll get roads/areas retrofit with signals to help cars and I think some type of coordination signals/beacon locally between cars.
I only work remotely, 2-3 days/month on-site is fine. So no, it's not a perk, it's a requirement.

You are right: working remotely effectively requires a different skill set. Most of all, a remote worker has to be really good at self-motivation, focus and communication. I have been working remotely for a decade now and consider myself an expert in those areas, so no, I would not accept lower pay.
Since the car knows its speed, it may categorize detections by their velocity relative to the ground (i.e. just subtract the car’s velocity from whatever the detection indicates). This would be able to filter e.g. road signs vs cars moving slower regardless of relative velocity as long as the car is moving fast enough.
Thanks. I was just complaining last week to my friends that all howtos about postfix and spam protection seem to be a decade old. Now you fixed it and I wlil add rspamd (which I did not know about). My previous plan was to add some kind of Right Hand Spam Filter, do you have any opinion on that?
Just to snark a little - that model assumes a constant earth. After a billion years (the first step) there will be no water left in the pacific anyway. If there's even a pacific ocean by then due to plate tectonics...

Sorry.
I think restarting after a single pass through the program is a fairly common technique in real-time systems - I think the computers on the Lunar Modules worked this way. It means that you start from a known state on each iteration, and a further refinement is to allow only forward branches (so 'if', but no loops).
The cars around that car are still communicating. So the car next to it sees a drastic speed drop and tells everyone else.

Also say the cars regularly ping each other for updates, then one car that was in sight and is still in sight disappears doesn't respond, then it gets flagged as a possible hazard.
> and you can even extend it by writing custom modules in Python

Actually you can write custom modules in any language proving when you exit you provide the required JSON to indicate if the module succeeded or failed, changed something, or has a message to pass back.
We are seeing more and more news and speeches like that recently. While I agree with a lot of them, in terms that these big players are really bad for society, I keep thinking, what is making all of this to be published now? Who is actually behind that? If FB / Google fall, if the web with ads as we have today fall, who will get a ton of money?

Some of it might be a trend as we are seeing a lot of books, paid articles about focus, ditching social networks, etc, but I dunno if that is the trend or just a bi-product of the articles in the big media.
The Magnetic Field Is Shifting. The Poles May Flip. This Could Get Bad
I just wear wireless headphones and tidy my room during big meetings. It's still easy to pay attention, and takes care of feeling restless during irrelevant parts.

In a sense, being in the conference room is asking people to be (ostensibly) 100% on during the whole meeting, which seems like a huge mental drain.
Solution to Git CLI being very slow in Windows
I can't believe HN tolerates this apologism of terrible propaganda in Eastern Europe. He isn't 'unpopular' in Eastern Europe, political movements (read: Orban and friends) are weaponizing antisemitism just like 70 years ago.
You mean for the system to work every vehicle which might have to stop in the road will have to be upgraded? Doesn't seem feasible.
We've had that technology since Rome. I think it's fair to say most current internet and cable monopolies have been dragging their feet on upgrades, and even actively resisting innovation.
Yes, but what's easier to lay the blame on - the expensive system that the government commissioned and will have to publicly say isn't good enough (and thus need to commit to spending money on improving it), or the cheap contract employee who can be summarily fired.

I don't blame the guy for not talking any more - he's (rightly) scared of being crucified for misclicking.
DNS is only distributed if you run it yourself, not when you rely on a centralized service.
I don't think any item is "ignorable" if you are about to run directly into it. I get that the computer might not be able to track every road sign or object to the left or right of the car.

Still do you want your car to directly hit a sign, litter or barrier? Why not have a second smaller system like the backup warning sensors most cars have to avoid hitting non-movable objects taller than 6 inches?
>> No good practices are being followed, there are no tests, huge components that should be modularized, no organized architecture at all.

I am not blaming you here, but it's our job to ask during the interview process a few questions from the Joel test. Then tell them just show me the systems, just one engineer opening up their Travis CI or any other dashboard, some git repo with test coverage number (no need to show code). If they don't show, don't join.

>> Just don't care and keep doing what you're told to do
If the earlier engineers on the team say so, most likely that's the way to go. May be striking conversations over coffee and try figure out if somebody else earlier tried to buy a refactor and it did not work. May be the management just does not care, then find a new gig if this is horrible.

If it were lack of capability/experience, do some rough estimation and propose a refactor plan for every delivery, that is some critical pieces get refactored in each delivery. If this is also not acceptable, then seriously find a new job. Best!

>> This is my first time starting a job with such a bad existing code,

Well, and this may not be the last time; unfortunately this is how this circus works.
Me too. Sendmail and his friends did unspeakable things to me.
set -o vi

:D
C-b C-b C-b C-b. Oh my... happened to me too. I think this is when I finally understood what was happening.
You gotta appreciate the guys who have to solve issues like why this rocket's second state lost communications. The actual hardware with the problem gets dropped into the sea and lost forever. All they have to go on is whatever telemetry they did receive from the second state, if they received any at all. Good luck figuring out the root cause of that one. Maybe they have some pre-flight test data or pictures taken of the hardware before launch they can look at for anything funny?
1) Users have the choice in other types of apps such as PDF renderers and game engines in matters of performance and battery life. Why not browsers?

2) Game engines are very low level and Apple doesn't have a problem with UE or Unity. Maybe the problem is the iOS sandbox would not work with JS engines?

3) I don't buy the security argument. Google and Mozilla are very diligent with updates, even more so than the Webkit team. It could be argued that the Android approach of unbundling components from the OS is actually better in terms of security.
Cloudflare Workers
If people aren't getting value from a meeting, they should stop doing it. Or reflect on why they were doing it in the first place. Talk about it at retrospective! Or sooner! You do have those, right? :-)

I once quit a job and when my boss asked why I was quitting it was the lack of retrospectives. The following week we had a retrospective, and I stuck around for a while longer.

That's how much I believe in it.

Of course, that company went from upstart to dominating its market in 5 years. Who knows if the fact that the whole company started constantly tuning its process helped? I'd like to think it did..
> And STFU is smart advice in any situation where there is even a remote chance you will be charged with something.

Maybe, maybe not. I mean if there is a remote chance you will be charged with “something”, possibly minor, whether or not you cooperate, and a practical certainty that you will lose your public employment and associated benefits if you don't cooperate (and, likely, your employability anywhere related to your chosen field), you probably want to do a more detailed consideration of the likelihood you will be charged, the likely consequences if you are, and the marginal risk of talking.
I started in the 80s. I wanted to write computer games as I didn't have many at that time. Started with BASIC and moved to Assembler.
Is there a tracker?
Is Volvo already building lidar sensors into their public available cars?
I ran my own mail server for a few months in 2013. I came to the conclusion I'd much rather pay Google $5 a month.
Humans aren't that great at this either, especially considering our tendency to follow too closely.

I witnessed an accident very similar to this. A vehicle was partially blocking the left lane of a 4 lane highway. A pickup truck was traveling at highway speeds in the left lane. A small 4-door car was following the truck too closely.

The truck saw the lane blockage fairly late and performed an emergency lane change to avoid hitting the stopped vehicle. The small car behind the truck slammed into the stopped vehicle without ever even hitting the brakes. The driver was very seriously injured(the car battery was in her lap and most of the engine had entered the cab) but afaik survived.

That was my life lesson to always allow space between me and the vehicle in front of me.
Graham's Number? Is that the number of chicks Paul Graham has banged? Yeah, I would imagine it's astronomical, since the dude is a pussy magnet/crusher.
It’s an AI using deep learning and therefore magic requiring no explanation.
My astronomer friend says this isn’t really different from any other satellite with reflective shielding.
Yes, my 2017 Subaru with EyeSight behaves this way.

A couple of other scenarios when adaptive cruise is on: cars changing lanes into the lane ahead of me at short distances do not cause it to react quickly enough. It seems there's too much lag in the time to capture the interloper; and, if I'm approaching a car quickly that is moving much slower than I and I signal a lane change but don't execute it, I'll collide with the slower car. (or so it seems to me, the system did not slow down and I had to apply the brake to avoid colliding).

Another related problem with vision-based systems, these random type of road artifacts that fool the system. This image shows a false left-side lane marker (formed by a partial re-paving and the shadow cast by the center barrier). It sounded a lane departure alert. If the car were autonomous, it likely would have swerved right trying to center: https://imgur.com/a/KnsXU
There are physical limits to how good a radar's resolution can be, set by the properties of the radio waves used. Those make it really difficult to detect small size differences -- relative to the radar's wavelength -- though, not quite impossible.

It's why everyone else uses lidar instead, or in addition. Really, it has the same limits, but the wavelength of visible light is small enough that they're only an issue for microscopes.
Sure, but the point of those satellites is not to make a flash in the sky. The whole point of the disco ball is to dazzle.
> The employee has since been reassigned to an unspecified job at HI-EMA but has not returned to work since the incident, Anthony said.

>The employee has not been disciplined but faces the possibility of punishment, which could include termination, Anthony said.

Is this normal in the US. Govt. that you can not go to work for 2 weeks and there has been zero disciplinary action?
Is there any solution for banners, malware, pop ups etc?
Can anyone help me to get rid of these annoying banners, pop ups, tracking, malware etc?
Hope you find it helpful! Not sure what you mean by Right Hand Spam Filter, but Rspamd has been great. It integrates with postfix as a milter so there's very little configuration to get it working with your existing setup.

The daunting part is just how many options/features the project has - which is what I tried to clear up in my guide.
Walmart joins most of its competitors in selling e-books
China Outlines Plans for “Polar Silk Road” in Arctic
That's only true if the service is likely to induce behavior that require such intervention - otherwise it's absolutely ok, for example, to call a public ambulance when a taxi customer gets sick, as oposed to arranging private insurance for your customers.

There is no proof ridesharing would induce criminality, quite the contrary, it's a much safer alternative to random hitchhiking.
Apparently the driver of the Tesla didn't have time to react to the firetruck as their field of view was obscured by a large pick-up truck that changed lanes seconds beforehand.

If Tesla's autopilot can't detect upcoming stationary objects, it should in the very least keep enough distance between itself and the vehicle ahead in order to allow the human at the wheel to have an unobscured view of the road ahead.
Funny how you rarely see the same complaint about C++. You've got CMake, Make, Conan, vcpkg, and a bunch of other build tools that all require a hugely complicated setup process to get right. None of these ship with sensible defaults out of the box, and the documentation for them (especially CMake) is absolutely horrible, worse than any JS build tool.
Clean code. Knowing that any debt will invariably come back hunting you. Clean code, however, is still a lot of art and experience, you never stop learning.
Looks useful. I'm not sure how the catch-all address works for your service, maybe it's the same maybe it's different from what I have.

My problem with a catch-all was that there is a lot of spam that gets send to various common email addresses such as "admin". Do you maintain a blacklist for your users?

I have a regular expression set as a username in my database of email addresses. (spoilers: it's just somesalt.*."2 or 3 characters" so for example secretsalt.ycombinator.com@mydomain.tld). So I can sign up to any random website by just entering salt.thatwebsite.tld@me as my email. That's the zero-configuration part. Honestly, this is worth paying $9/year for imho :P

The personal and and professional mail together is simply internally forwarding my professional mail to the same imap instance but a different folder :P. It's mostly future-proofing on my part. If I were to get/manage a different domain-name (say a gaming guild or business venture) I could merge those too and not have to set-up 27 different accounts in my email client.
Go uses system calls directly because the alternative in UNIX land is linking with libc.
"their reasoning that they must ignore stationary objects to avoid too many false positives sounds pretty reasonable to me"

I don't understand your logic. Stationary objects either are rare, and wouldn't trigger too many false positives, or they aren't, and the car should be prepared for them.
How Blockchain Can End Poverty
First, I'd start with "Don't run your own email server unless you absolutely have to."

Second, if you must... I'd recommend Mail-in-a-Box. MUCH easier to setup / maintain than this one, at least from a cursory read. https://mailinabox.email
Given my first real Postfix experience was a scaleable forwarding service that is supposed to support a variation of configs without breaking the config file.

Postfix is super easy, and well documented for normal use cases.
Why doesn't the camera system take over from the radar sensor to spot the stopped vehicle?
Transparency at Stuart Engineering
Fastmail will let you do it for $50 per year if you pay upfront. Just not sure why anyone would run an email server other than extreme paranoia. It’s hardly a set it and forget it affair.
Youtube has a lot of solid content, tutorials, documentaries, reviews. I've learned so much there and done so very efficiently. I wouldn't sweat the "fake" information, it's not that big of a deal.
Hm. "The heavens" is a protected area, like a wilderness or polar bear? What hubris - tiny humans feeling possessive about the entirety of the universe. Something very off here. And these are exactly the people who should appreciate our insignificance in the cosmos.

Maybe they just expressed themselves badly. Its our 'sphere of observation' or some such, that they feel is being badly treated?
I appreciate the write-up! I always wanted to do a similar write-up for my own setup, but I never got around to it. (My setup uses slightly with different components: exim+dovecot+spamassassin+openldap.)

However, after reading this, the software developer in me feels like "These tutorials should not be necessary."

This should be a GitHub repo, trivial to fork and trivial to test out locally for anyone.
Let's look at the statement on its merits.

1. If Apple was so concerned about protecting its search ad revenue from Google, why would it offer a method to install third party content blockers?

2. Puffin offers "extreme virus protection"? Apple banned "virus protection" programs in the App Store a year or two ago because they were all scams.
The branching is a given. Variable mutation is totally possible with set_fact.
Show HN: Amp – A text editor for your terminal, written in Rust
>Apparently the driver of the Tesla didn't have time to react to the firetruck as their field of view was obscured by a large pick-up truck that changed lanes seconds beforehand.

That changes the story a lot, do you know where you got that information?
> What always boggles me about such news is that people rely so much on these systems and apparently people drift away that they even don't notice an f*ing big red fire truck standing in their way. I often drive with dynamic cruise control (radar based, only keeping distance, breaking and speeding up, no steering), but I am in many situations in which I think "I need full control here" and temporarily disable it.

Maybe you're not a typical case?

FWIW, I consider myself a pretty decent focussed driver, yet when I hired a car with dynamic cruise control a few months back, I was shocked how much losing responsibility for part of the driving experience --the gears, acceleration, and braking, obvs-- helped me to relax too much, and lose a little bit of focus. I was still steering, and it wasn't like there were even any near misses... but I just felt my attention wander too many times for comfort.
The difference is that if all you have is a radar telling you that something is moving at 20mph then you can guess that it's probably a vehicle in the road and you should brake. But if there's something that's stationary at 0 mph it might very well be an overhead sign or otherwise something that you don't have to avoid. A radar can be very precise in detecting distance and relative velocity but very bad at detecting which direction something is in. For the sort of non-dish radars used in cars I'm not even sure they can detect direction at all.

Ignoring things that aren't moving is a standard technique in radar to prevent your returns from being swamped by, e.g., the ground instead of fast moving planes you're looking for.
Don't think about the cars, look at the charging network. I think it's plausible that all the big car companies realise that nobody will buy their electric models unless they license Tesla's charging infrastructure. They can try to replicate that infrastructure but they are already behind, and it would be very painful to do if nobody is buying your cars while you build it out. So there's your (literal) network effect.
https://as.reddit.com/r/teslamotors/comments/7s9b9p/tesla_al...
I would say that to some extent it’s always been there. At different times, the public is more or less willing to hear certain arguments.

So arguments that only existed in say academia or quarterly political journals are now allowed to flow into more “regular” news sources.

Also, it doesn’t help that now Google / Facebook are hated by both the left and the right. Usually you can survive for a while by playing both one side off of another. Very quickly though they got surrounded surrounded on all sides, like the Germans at Stalingrad, and there is no way out, and the vise grows tighter everyday.
Icing on the cake: Sprinkle a little Let's Encrypt in there to cover SSL. It doesn't take much to have a cron make a new cert and restart dovecot and postfix.

My setup is similar, but it uses MySQL instead of LDAP.

I love being able to make aliases and even better - deleting them when I'm done with them.
This very much violates the policy of the site. Please don’t do this.
I'd argue the hubris is going the other way: launching shiny stuff into space that everyone has to look at. It's launching trash into space, IMHO, and I reacted quite negatively at first as well.
Sometimes you're in an actual TTY, not a windowed terminal.
Nope. https://www.snopes.com/seth-rich-dnc-wikileaks-murder/

(Fox gave this conspiracy an air of legitimacy despite no evidence, and then quietly removed the stories from their website without ever apologizing or clarifying.)