skysight-inc/HackerNews huggingface dataset:
It's actually worse. The new root (good I believe until 2038) uses the same key as the now expired certificate. It has to or it would not be possible to validate the certificates that were issued. And this new one is a root certificate installed in browsers!

What "should" happen is that no certificate should be issued with an expiration date later than the issuing certificate. Then as the issuing certificate gets closer to expiration, a new one, with a new key pair, should be created and this new certificate should sign subordinate certificates.
Some chips and a wheat beer. I haven't drank one in a year. No better time that this to drink one again.
Elon Musk's biggest worry is the spaceship's return to Earth
That's not exactly true. In C++ terms, the example code is moving a value:

std::map<...> foo;
someFunction(std::move(foo));

And not moving a pointer like:

std::unique_ptr<std::map<...>> foo = ...;
someFunction(std::move(foo));

So it copies sizeof(std::map<...>), not a pointer.
They said during the launch live broadcast that SpaceX intends to fly paying tourists by next year. Apparently many tourists have also visited the space station.

https://www.space.com/spacex-crew-dragon-will-fly-space-tour...
> Private space flight started with this flight.

I hear Dennis Tito and Mike Melvill sighed.
Ah, yes. "Just take a gap year," the "Hurricanes? Just move to another state" kind of solution.
Stealing two bits of good tech, and combining them to make the best tech, might be against lots of IP laws in the US, but still results in the cheapest and best product on the market.
Are you suggesting that industrial espionage is okay if the targeted company is receiving subsidies from their government?

I'm sure the Chinese will love that angle.
Could be good marketing, ‘Cybertruck - tough enough for Mars’ vs ‘Built Ford Tough’, or just make a Super Bowl commercial with the footage of it landing on Mars.
Google Play Services was never open. You can however still submit changes to the actual OS though.

People said the same thing about Android in its early days. It was wrong then, still wrong now, and will likely be just as wrong in the future.
There's always interest, thanks!

I have been reaching for a good way to write, mostly markdown, but I often want to drag images into a document and comment on them. I don't want crazy, I want to save the docs in a simple markdown format that can be processed further for knowledge base and blog.
disgusting animals
How wonderful!

Congratulations to the entire Space X team, this is a real accomplishment and I'm sure not one that came easily. It's exciting to see relatively small companies fulfilling roles that people thought might require massive military contractors.

Elon is an interesting figure. He is, I think, a paradigmatic example of the imperfect creator. His undeniable success in difficult endeavors can create an aura of authority for acting within domains where signals about the appropriateness of his judgement are less clear. We've had technical experts lead us down paths that were not, in hindsight, in our best interests (I think of Teller and Von Neumann's advocacy for aggressive action against the USSR). I hope we can move away from the "elon sucks" v.s. "elon is a genius" dichotomy and into a culture of acknowledging accomplishment while insisting claims in other areas be fully justified.
I really like Grokking Algorithms. You can probably read it in a weekend if you don't do the code exercises.
Musk added that while the threat was low, his "biggest concern" about the new spaceship was the capsule's asymmetric design, which is driven by its emergency escape system. While screaming back to Earth at 25 times the speed of sound, the capsule's heat shield will deflect and absorb the energy of superheated plasma — but the forces of atmospheric reentry have a slim chance of causing catastrophe.

"If you rotate too much, then you could potentially catch the plasma in the super Draco escape thruster pods," Musk said, adding this could overheat parts of the ship or cause it to lose control (by wobbling). "We've looked at this six ways to Sunday, so it's not that I think this will fail. It's just that I worry a bit that it is asymmetric on the backshell."

Musk expressed the same concern about a roll instability, as the issue is called, during a press briefing after the company's Demo-1 mission — an uncrewed test flight of its spaceship to orbit and back — lifted off in March 2019.

He also noted a concern about the ship's parachutes, which must deploy to slow down the Crew Dragon as it falls through thicker atmosphere.

"The parachutes are new. Will the parachutes deploy correctly? And then will the system guide Dragon 2 to the right location and splash down safely?" Musk said at the time, though he said he sees "hypersonic reentry as probably my biggest concern, just because of the asymmetric back shell."
And yet, those pains in the ass often are what is needed to really shake things up. It often seems a messy but necessary thing to make progress.
Don't tell me what it's not tell me what it is.
Mosquitos transmit and incubate malaria. You don't get malaria from hanging out with a person with it, you get it from getting bit by a mosquito that has previously bitten a person with malaria. [0] Given that the two are intrinsically related, it makes little difference when having a shallow discussion to make the distinction.

[0]https://healthclinics.superdrug.com/is-malaria-contagious/
Yes, you are missing the point. It is very common for people to miss it when they only have experience in OOP, and very hard to adjust to the required paradigm.

Good Haskell code is not organized the same way as good OO code. While in OO you will have separated instances that take complete care of different business concerns, in Haskell you will abstract the care into different parts, and integrate the business concerns into a few instances that take complete care of them.
That's what I meant by "hold off". It isn't commercial until it is. Government-sponsored developmental programs may one day pave the way for commercial operations, but that hasn't happened yet.

And the concept of space-mining likely will not involve people. We are already replacing men with machines in mines on earth because of associated costs. I imagine the first space miners won't be guys in spacesuits carrying shovels. They will be machines.
Good. This is very important reasearch, as the pandemic has shown.
It doesn't. That's also the downside of most login/identity providers that implement some form of "Impersonation."

Without really smart and well-considered limitations and logging, it's impossible to tell the User from the User* without digging through audit trails, etc.. and if the developers/architects involved didn't consider the limitations and logging in the first place, odds are they didn't consider the audit trails either.

And yes, I do this for a living.. and have seen bad things from major organizations. :(
Didn't some of those missions had live cargo in mice form anyway, making an atmosphere necessary? Only the trunk is unpressurized, AFAIK.
7 Really Good Reasons to Use TypeScript
Getting a voice teacher made a huge difference for me. I wouldn't have been able to make anywhere close to the same progress on my own.

Having tried it, I think singing is poorly suited to self-learning. In my experience, vocal lessons are designed around identifying and overcoming problems and habits that are unique to each person. Identifying problems is done by ear or by observing subtleties in body posture, which require experience and training.
Many of the greatest Americans were immigrants. Like John Von Neumann, or Alexander Graham Bell, or Andrew Carnegie, or Alexander Hamilton.
This is a huge success for NASA's Commercial Crew Program. Both the total development costs ($1.7B and $2.8B for Crew Dragon and Starliner, respectively) and the per-seat costs ($60-67M and $91-99M) have outperformed all other NASA crewed programs since the early days of the agency. For comparison, development costs for the Space Shuttle were $27.4B, while Orion is estimated at $23.7B.

(From https://orbitalindex.com)
Did they ask for less?
Have you ever read the terms? I don't know if they even publish them anymore, but I read one many years ago. TLDR;

1. The CA must misissue a cert.

2. The misissued cert is used by a malicious party to impersonate you.

3. Every user (your users) must prove their damages and claim individually.

4. There might have been a low maximum, per-user claim, but I can't remember.

I'd be amazed if there's a single person on the internet who's been paid out by that warranty.
I pulled over on the side of the street to watch this with my kiddo on my phone. It was a historic moment that I didn't want to miss.

I really wish that we didn't have to make EVERY experience ultra casual these days though...it was disorienting to keep hearing the astronauts referred to as "Bob and Doug". These are veteran Air Force and Marine pilots. They deserve their honorifics being honored if anyone does.
In what application are you going to sort an array of a pure scalar type that is native to the machine?

Usually you're sorting pointers to objects, and there is some indirection required to compare them (perhaps an outright call through a function pointer).

Here is one good application: ordering an array of pointers by increasing address. That doesn't require indirection upon them, and is useful: e.g. if these are pointers into a heap we wish to compact.
That would make much sense as the one that failed, wouldn't of shaken the ship and not misaligned the transmitter, which will be directional and not large tolerance if satellite or even microwave based to another ship. So may well be that we will never see a live landing unless filmed from another ship due to the money shot causing the whole ship to shake and lose signal alignment.

Oh you can see how that will pan out, only get to see the failures live - but logical explanation for it all, so simple that even that won't stop the conspiracy rabbles. Still, just have to laugh as it's almost the perfect troll on conspiracy nuts the way it works.
No, I think he means using the tuner to tell how well you sing intervals, etc. Find a center pitch, sing relative to that and keep track of how off you go from the correct notes.
> That's almost inexcusable

No, it's completely inexcusable. There should never be such a simple, major security vulnerability like this. Overlooking something this basic is incompetence.
Well, they likely could stream from another ship, bit affected by shaking. And I think it should not be a 'low' priority task, given how big this is for marketing and PR. Literally millions of people are watching these livestreams. I bet if they placed some Disney/HBO logo on a landing pad, it would more than earn back the additional expenses.
And now you know why Boeing never bothered to develop reusable rockets.
Interview of Dan Widmaier – Bolt Threads, using biology to create new materials
That doesn't make much sense when there is uninterrupted footage of boosters landing on land, and the actual boosters themselves are also often filmed when they arrive on land later with the barge. But then, conspiracy theories are not required to make sense at all.
So basically you'd work for free for one of the wealthiest companies.

That's f'ed up.
Your resentment (if there is any) is understandable but you are using a cross platform application framework to predict what Google will do for an OS. Moreover, I believe Flutter isn't going anywhere anytime soon either.

I write about Flutter in our company blog every now and then. I can confirm, Flutter posts currently receive their all time high impression counts and time retention rates.
Not true; the only aircraft that does what you describe is a glider. Any propeller will generate a lot of noise, the tips of the blades get close to the sound barrier. Disclaimer: pilot here, I did fly gliders and I fly propeller planes regularly.
We may overemphasize a person's character. I would not trade Musk's achievements for a perfect character, whatever that means.
Elitist mentality and condescending language common in tech, sadly.
Yes, mind-boggling.

For each task, the authors feed a context window of text with either zero to a few sample queries and responses, followed by a query without the response. The model generates a response for the last query. BTW, this approach is analogous to what you would do with a human being: you would provide zero to a few sample questions and answers, and then ask a question.
But churches are open, subject to certain restrictions which also apply to secular businesses. The question is which set of restrictions they should be subject to: those for concerts and movie theaters, or those for grocery stores.
> But wasn't the point of Marshall Plan to not repeat what Treaty of Versailles led to?

Yes, plus the danger from the USSR.

> If you keep demanding an eye for an eye the wars will never end.

Never do an enemy a small injury. From a realpolitik point of view, either make them a friend or smash them for good.
To resolve the confusion: that's British usage. In North America, the thing you're thinking of is called a "camper", and the association most Americans have with the word "caravan" is to a Dodge minivan.
Yes, I agree with you completely that there was significant prior evidence. I would go as far to say as a very large amount of what Snowden revealed was in fact already known. This seems to be the opposite of it being a conspiracy theory - that's why I asked specifically about these "coincidences piling up".
The ACLU is not a singular entity with the same thought; it’s a collection of people, and people have different opinions on things.

I’m reminded of when the ACLU defended a white supremacist and many were upset, even to the point of leaving the ACLU.
Sorry to reply to my own comment. But I want to clarify. Two certificates (at least) expired. The root named "AddTrust External CA Root" and a subordinate certificate with a subject of "USERTrust RSA Certification Authority." Both expired around the same time.

The "USERTrust RSA Certification Authority" certificate signed yet another layer of intermediate certificates.

The "USERTrust RSA Certification Authority" certificate was promoted to a self-signed certificate, now in the browser trust stores, using the same key pair as the original certificate that was signed by "AddTrust External CA Root." It has an expiration of 2038 (although that concept is a bit vague in a root certificate).
From the article: "charging times correlate closely to flight times, says Ganzarski. That means the batteries would need about 30-40min of charging following a 30min flight. The weight of the batteries makes swapping spent cells for fresh cells unfeasible between flights, he says."

Does utilization for these short-hop routes correlate to this sort of down time?
Nesto – Pomodoro Timer with Background Music on Mobile and Desktop
His cheesy joke delivery has gotten fantastic over the years. It was a bit rough in his early videos but it just goes to show how anything can be improved with practice.
...or Google+

Oh, wait
we drove a dodge caravan around the country a number of times while i was a kid.
this is what i was thinking

https://duckduckgo.com/?q=caravan+waggon&t=brave&iar=images&...
Incorrect. The layoffs were primarily in the commercial division, and the defense is primarily untouched.
Often you need to build the new thing before the business model emerges, because you can’t visualize or evaluate the latter until the former exists.
Using my PhD in venture capital
There's a very long way to go before safety is comparable. Last time I looked into it, you have better odds skydiving from a small plane than landing in it.
Winning cures all.
The number of pilots has no correlation with the electric propulsion.

For student pilots it is not amazing, in the flight school you need to do a raid (this is how it is called on this side of the ocean) flying between 3 cities and 500 miles minimum; you cannot do it with the electric plane and as a student you are not good enough to fly a different plane model (with ICE power plant) just for the raid, so you cannot complete the school.
I don't believe it is that rational. It's an ideological assessment, not a risk assessment.

If you agree with the people holding the guns, you feel safer with them. If you agree with the people holding the rock, you feel safer with them. It doesn't matter what they are holding.
GraalVM apps run faster than Scala/Java/JVM apps, with less memory consumption
It's not because you're also asking the same of them. If you're submitting code upstream, you're essentially asking the maintainers to perform code review and start maintaining your contributions, for free.
React and Low-code back end. The way to skip infrastructure messing up
Show HN: Tinder, but for Movies
Efficient Large-Scale Multi-Drone Delivery Using Transit Networks
He's still an American.
Microsoft lays off journalists to replace them with AI
Great writeup. Think I found this one on HN the other day also: https://untools.co

I find these very helpful as a manager. Highly advised read even if you're not a designer for this Dropbox one. The Untools ones as an engineer, manager, or almost anything really. The focus is decision making, problem solving, and big picture thinking.
I mean, that feature can be abused in a whole host of ways
For me, some books are much easier than others and that plays a big role in how fast I finish reading.

> are you spending literally the entire weekend doing nothing by reading?

For the most part, yes.

> Do you take breaks?

Yes.

> Do you speed read?

No.

> Do you take notes?

Usually I take notes on things that jump out at me while I read. I don't take a lot of notes. Maybe one note every ten pages or so.

> What's your strategy?

Stay off of reddit and hacker news. Instead of spending time on the internet in the mornings or if I feel board, I reach for the book I am trying to finish and I keep my phone somewhere it can't distract me. Very tempting to get distracted and start looking at your phone. Before you know it you're five pages deep on reddit and half an hour is gone.

Another thing I do pretty frequently is flip to the next chapter and tell my self, only x pages to until I get to that chapter. It helps me stay focused and motivated.
The issue from our point of view is whether it's different enough to support a significantly different discussion. That's a somewhat specialized question, of course, but the answer is definitely no, so it makes more sense to merge the comments.

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
Boeing bought a large chunk of Embraer, then refused to pay after Embraer split itself in two.

Could you or anyone please explain what the DoD or its trade policies have to do with that? Or were you talking about another Embraer thing?
If Crew Dragon is only making money from the government, how would it still be there tomorrow if the government weren't paying? Do you really imagine that there will be a market for this as it stands today? How much training and medical evaluation have the astronauts gone through to ensure they could survive the trip and know how to operate?
Electric motors are very cheap and light for a given power output, especially for forced air cooling, so oversizing them doesn't impact the cost or weight too much.

They might use that fact to oversize them giving better redundancy (eg. one can fail during takeoff and it not be an issue).
I was in a cab and made my wife watch the livestream on my phone. I'm not even into spaceflight; I just can't help but watch and marvel at the fact that we can put a person into space on a rocket... and then land the rocket. It's insane. And if they didn't do it over and over again with eyewitnesses I would refuse to believe it.
Sanctioned under what CC rules? They provide a way to cancel your subscription (which just lets it run out) in the settings.

Now, if they required you to, say, mail a letter to cancel, I could understand a chargeback. But a chargeback because you didn’t Google “how to cancel Zoom subscription” is overkill.
Both software and hardware tended to come with much better and more complete documentation than today (things didn't change as fast as they do now, so printed documentation stayed relevant much longer than it would do now). As a teenager I learned a lot from the pretty detailed books on MS-DOS and GW-BASIC that come with our PC XT clone, for example.

Then there were 3rd party books, sometimes very good ones. And magazines, some of which were very good too.
Controlling Assistive Robots with Learned Latent Actions (2019)
Hasn't this been done before many times with far far lesser tech?
They do, you just need to actually click on the link to find out.
Slightly confused if you don't mind clarifying. Are you saying that what a mental model actually is isn't correct in how this article uses them?
The WTO is run by bureaucrats who enforce the terms of the membership agreement. If national governments think it's important to subsidize local industries then they should negotiate agreements to allow for that. Don't blame the WTO.
Watching this launch has really been a bar-setting thing for me as an engineer. It's done what folks stated as a goal many times during the launch livestreams--I feel inspired to build great things after watching the success of this mission. Looking at the history of Musk and SpaceX, I just get this feeling of "I could do it too, I need to step up my game" and certainly hope someday I get the opportunity to participate in similarly incredible projects!
Interesting. Thanks for the share.

I wonder if programming fonts could achieve that - like the original author could specify a font for a portion of the code eg. a “destroy_context” or “drop_connection” function could have a scary look.
Director Ani Acopian breaks down her drone-shot video, “A World Artists Love”
Thanks for the comment about Diamond. Haven't thought about it that way.
Thank you very much! It has been a long time since I've looked at visual slam actually. That Omnidirectional LSD-SLAM looks really nice. Their code repo has been untouched for six years, but this still makes me realize I need to use vslam! I just found this recent work which seems really useful.

https://github.com/ivalab/gf_orb_slam2

I feel like vslam could be the the first step in a post-processing pipeline that would reduce a lot of the computational complexity of solving large maps. Once I can easily make large maps I can build simulated environments and use those for training an agent.

Thanks again for the tips!
Seems to me that buying a 2 year supply of CPUs is not a great strategic measure since 2 years out your competitors will have faster chips or paying far less than you in 2 years for the chips sitting in your inventory.

Obviously if the alternative is to not have CPUs, it's the only choice they have, but its going to put them in a rough place competitively.
Thus, while Eliot’s stature is momentarily high because readers of an older generation with older values are presently in a position of authority and can celebrate him, I suspect a critical backlash in the years to come.

"Older" values like an appreciation of brilliance, originality and beauty? In your ageist dismissal, you inadvertently do the young wise (who won't be so easily misled by similar prejudice) a disservice!

There will only be a critical backlash by people whose screwed-tight political blinkers do not permit them to see genius, whatever their age.
You mean Mach?
> copy-pasting them to remote machine is more reliable,

This has basically nothing to do with the underlying cryptosystem.

Instead of explicitly configuring RSA keys, SSH could have been setup where you put their SHA256 hash in the authorized key file. (The pubkey itself would sent by the user at auth time and checked against its hash)