skysight-inc/HackerNews huggingface dataset:
Cheers for this! Don't worry about the negativity, it's something I've come to expect from subject matter experts since this is a very long process I'm going down fraught with danger and legislation.

One of the issues with solid rocket motors is that in the UK we can't manufacture our own solid rocket motors under the 1875 explosives act (supplemented by the EU Directive 2014/28/EU), so we have to purchase off the shelf rocket motors which are available in the UK.

Flying in an air frame with these has several key issues: It won't be a solid test bed for our air frame weight, the centre of gravity will be offset, they aren't throttle-able, even the high specific impulse motors tend to have very short (sub 10 seconds) burn times, they don't generate shock cones, etc.

One of my personal inspirations is the UCSRPL: http://www.uscrpl.com/

I imagine we'll have to follow in their footsteps: progressively more complex builds following on from a relatively simple starting point.

The plan is to use as many pre-existing resources as possible, this means:

- Using purchased fuel and oxidiser combinations instead of synthesis

- Working on a software (virtualising the hardware) test bed for avionics, then progressing to breadboards, then to purchasing PCBs. It's worth mentioning that I will be a student of Computer Science, but I'm going in to this with a significant experience of real time programming and PCB design - previous companies I've worked at had embedded systems.

- Using a simple system for recovery, most likely pressure deployed drogues fitted in the air frame cone, and an emitter which enables us to find it post touchdown.

I also understand that it's likely going to take the majority of my degree to get this done. If we don't make it to the Karman line: that's also fine. I'm not daunted by the possibility of failure, I'm excited by it. We learn a lot from failure. The goal is to go as far as we can and develop our skills through iteration.
I am not sure, but my guess is that the packaging is not compliant with proposition 65. California has a variety of regulations which force small changes to packaging and manuals.
For starters, always define your important goals in terms of clear and unambiguous metrics.
For example: What are your criteria for 'financial success'?
I'd like to believe stores were setup in that fashion, but we've known for a long time that isn't true. It benefits the store, not serve customers. A good example from Costco: https://www.businessinsider.com/costco-store-layouts-are-con...
An interesting game theoretical interplay has been an almost irresistible force that draw almost all democracies towards the same behavior: if it was possible for 100% of confidence to separate the group of people at risk from the people whose risk factor is small (e.g. pick some threshold like smaller than the risk dying of any other cause), then sure, it would have worked.

But the moment a number of apparently healthy and young people start dying from it, people start thinking thateither a) it's hard to know in advance whether you're at risk (e.g. unknown pre-existing conditions) or b) the disease is stronger than previously thought.

And that's even if the actual cause has nothing to do with (a) or (b), i.e. if the data was just a statistical fluke or misattributed deaths (e.g. people dying from X who also had sars-cov-2 in their system). It doesn't matter; there is no time to get to the bottom of things. The authorities have to play it safe, least they will be proven to have acted recklessly. And even if they try to be "brave" and plow ahead, the public opinion will quickly sway towards playing ir safe.

This seems to be an especially strong force since people today have an unprecedented capability of communicating and broadcasting "gossip". Even China's strictly controlled public communications wasn't able to censor spontaneous outrage from the citizens. And the fact that China reacted they way they did, set a high bar; any country that wanted to act differently had to be play it pretty convincingly to their populace (e.g. "we can do it, because we're different, we are so disciplined we can pull it off")
Why don't grocery stores get in trouble then? Do you need to be effective at forcing competitors out of the market or does simply the attempt make one guilty? Don't all businesses want to force their competitors out of the market?

As an aside it does not surprise me at all when I learn that a law is not worded in a way that's congruent with the popular conception of the law.
Well I doubt they actively try to make it worse.

But I would believe it if because of the lack of incentive, they din't make active efforts to improve it.
> In the same spirit would you support war against China in order to save the Uyghurs and other suppressed groups?

No, for two reasons: I don't actually have any concrete information on what is happening in China, and 2 the USA does a lot worse to suppressed groups both inside and outside the country than China has ever done, so I'd support a dismantling of the US State (today, maybe during ww2 I would say first go to war with germany and then dismantle the USA) before I support any kind of intervention in any other place in the world.
If someone behaves like the mentoring professor did, they aren't a mentor, they are a crux bringing you down. Burn their reputation, your life is worth more than their "research".

I do understand the pressure this person was feeling, unfortunately they didn't see a way out.
That raises the question of how to identify the sick. SARS-CoV-2 infections can be transmissible before the infected shows any symptoms, if they present at all.

Personally, I don't feel that there are many population centers in the US that are prepared to do the kind of testing that seems like would be needed to properly identify the sick.
google in china is less than 5% of the search market
It's funny because I am having the opposite issue... stuck at home with my wife and two young kids, and what I want is MORE alone time. I need daycare!
The history is a bit fuzzy. The interesting feature introduced in 2.6.24 was PID and network namespaces. Containers were "complete" by Linux 3.8 with user namespaces. Cgroups are not that important to be able to build containers (isolation first). There were other out-of-tree technologies before that, notably VServer and OpenVZ.
Maybe we would, but it isn't like there is consensus on economist side. And it isn't like not having a lockdown is good for the economy , because that has clear economical consequences too:

https://www.nytimes.com/2020/04/14/opinion/coronavirus-reope...
Sure, there could be some corruption going on, but theres a much more mundane legal reason the DOJ won't bring cases. They often won't prosecute because the costs of losing anti-trust cases are so high, largely because of the way antitrust law is written. When the DOJ brings a case and loses, the agency loses all future power to bring a similar case because precedent is binding, so they only prosecute the most obvious anti-trust violations. As all these conflicting comments in this thread and related articles suggest - an antitrust case against Amazon is quite complex and not your straightforward monopoly or price fixing case.
Thanks for the interesting project and for making it available immediately to play with.
> This probably under counts the true number of infection significantly

Probably not. Ships are unusually concentrated social environments.
A deflationary money would incentivize more careful investment and consumption, rather than rampant malinvestment and wasteful consumption which is detrimental to our health and our environment.
The official line now is that the virus didn't start in the seafood market. The bats that carry the closest viruses to SARS-CoV-2 are located 1000 miles south of Wuhan, and were in hibernation in November. For the theory that the virus was transmitted from a bat to a human in Yunnan to work, it needs to have happened earlier in the year.
What I don't like in these kind of posts is the fact that he seems to know much more than he could.

"For example, most folks that run large-scale container orchestration platforms cannot utilize their built-in secret or configuration management."

So, with thousands (maybe more?) of "folks" out there, each with a different environment, requirement, background and so on. How can someone knows what most of them can or cannot do?
Sure there is a lot of them posting about it in blogs and showing in conferences, but it still a very small subset of all the companies running containers today in the world, and the majority will not expose any info about it, for a myriad of reasons.
"the government" is much more than simply the currently-elected politicians. The currently elected politicians simply operate certain positions within the government.
My problem with the "no appropriation" argument is that it violates the golden rule (do unto others...) If I am over here doing something on my own, why should anyone be able to tell me I am doing it wrong? Doing that is corrective in a way that ignores individual experience and stiffles someone else's expression - for the sake of an individual's feelings not being hurt. And an action that hurts your feelings might be shrugged off by someone else, yet every member of a marginalized group has this innate right to "set the rules of engagement" when talking to anyone outside their group.

I think that is ridiculous. You can talk to your own experience, you can educate others about your views, you can try to broaden what people consider normal and natural or tell them why actions come across as shitty to you, but telling people they are violating your rules is simply an inversion of the power dynamics. It may make you feel good but it doesn't help anyone understand you better or feel closer to you. What we need is fewer boundaries and more curiosity, not stronger distinctions between people.

Censorship is not the way to understanding.
Well I would imagine they would just automate such thing?

And why would you do fuckery with a journalists password? Seems like especially stupid thing to do
product placement: https://www.youtube.com/watch?v=KjB6r-HDDI0

(somewhere I once ran across a discussion of "Starship Troopers" the book vs. "Starship Troopers" the movie, complete with a matrix of reactions depending upon how ironically one thought the ideas presented in each should be taken)
Demonstrating 15 contact tracing apps built to mitigate the impact of Covid-19
> The new approach violates Amazon’s mantra that every decision must put the customer first, said Tim Hughes, a consultant who used to work in product management at Amazon. “Why would their brand be a better option for consumers?” said Hughes, chief operating officer of a firm that helps brands manage Amazon accounts. “It doesn’t necessarily have to be cheaper, or better, or anything. So then what’s their justification to say, ‘We’re just going to put this up in front of everybody else’? This is just another example of Amazon being able to manipulate the platform for its own good use.”

Tim Hughes should probably figure out that the previous system had exactly the same properties
tl;dr We are all in on AWS proprietary stuff instead.
This isn't the website dad is always on. Son will find that one when he hits puberty.
No, never thought about it. But good point, let me check.
I've played it a bit. The core mechanics was spot on but it ended up a soulless copy of what UO was. Procedurally generated levels and instances just took away any resemblance of a story for me.
Crucially not everyone has a consistent stroke order. I find myself writing letters in different ways depending on my mood etc.
This has largely _not_ been a Federal response, this has largely been in the hands of the States, at least in regards to setting the policies. State epidemiologists are currently more "powerful" than the CDC in most states, so blaming the response on who is in majority control of the Federal government is short-sighted.

Yes, the (lack of) organized Federal response influenced the severity of the issue in the early days, but we can't lay blame at that level for what has taken place in each state since that time.

The issue isn't whether lockdowns work. Of course they do. People spread disease to one another, limit the number of people that contact each other and the disease will abate. That isn't what is worthy of debate. Rather, we should be debating if lockdowns are worth the cost, and what other methods could we use to mitigate the disease while still maintaining some amount of normalcy.

If we have that debate, it needs to be super local. Density is the driver of any pandemic with human to human transmission. NYC is the most dense city in the United States, and has a huge reliance on densely packed public transit. Dallas is incredibly sprawled and has very little transit use. They need fundamentally different responses.

It is this lack of nuance that is troubling.
There's no way that thing is still working, even if the story is true. (The location is "undisclosed" so it would be easy to just claim you did it but take it home with you.)

If it really is still out there, it's not much better than litter.
I "invented" navigation meshes in 1995, along with, I'm sure fifty other people. Then I read about them in Game Programming Gems in 2000. So five years before someone thought "Hey, I should publish this!" (wish I had!) But it was apparently invented in the 1980s for robots.

For games, the catalyst was 3D games consoles.
I agree, and should have expanded my "not a direct comparison" more clearly to expand on the more nuanced situation. But, I mean my point kind of at the more general level that the topic concerning Amazon often starts at: everyone's (and mine as well) first thought is to mentally compare to a grocery store with own-brand products competing with name-brand versions. In many cases, tho absolutely not all as you correctly point out, the jars of mayonnaise from Kraft and from Safeway are both bought and paid for by Safeway.

So, while that is not an absolutely example (as lots of stuff in the store is still owned by the separate vending companies), it is a good caveat to our first "grocery stores do it" thought that comes to mind when thinking about this Amazon topic.
I see, should I have covered contrapositive of my statement?

technically everything in the universe is nondeterministic but to say "but also computers are nondeterministic" is reductionistic to the point where the categories are meaningless.

It's also not sufficient to say "computation" exists. Well, you could reductionistically describe the orbits of the planets as a very machine that is very good at one computation. So I guess that makes it a computer. The solar system is a computer.

Going beyond the question of determinism, similarly saying you can encode arbitrary computation to an arbitrary degree of determinism (which you can, in biology), is not helpful. This is like pointing to the Game Of Life, and showing that people can build computers in the game of life, and saying that the emergent phenomena are "just like a computer". Well yes, there is a computer underneath, but I think you're probably missing something important if you think the parameter and output spaces of game of life as "just like a computer".
I'd agree that k8s has a lot of functionality built-in, another important thing to realise is what k8s doesn't do.

In addition to the well-known integration points (Container Runtime/Network/Storage Interfaces), there's things like the lack of a good built-in user authentication mechanism with Kubernetes, which means you pretty much always need some external authentication service for your clusters.

That's not too bad if your on one of the big managed providers (GKE/AKS/EKS) but can get complex for people who want to deploy on-prem.
Shhh.. Black jack
Ask HN: Do you track health and wellbeing data?
Do you track your health/fitness/wellbeing information in an organised way and review for insight? What do you track and what have been your findings?
Oh for goodness sake. It was promoted by the PRC and western news media, including the DM, picked it up from them and reported on it.
Absolutely. The important part is that certificates don't necessarily need to encode any personal information to be immediately useful as a factor of authentication.
The fact that a person controls the private key associated with the certificate should be enough to allow any given server to trust the certificate, if they have enough confidence that the private key is being securely stored by the user.

Now extend that to a personal certificate authority. As long as the server is able to trust that the Root Certificate, and any Intermediates certs in that CA are controlled by the user, they should be able to trust certificates signed by that CA to authenticate that person.
Since late last year when I activated Brave Rewards (make sure to opt-out of auto-contributions to keep your BAT)
Videos Show Cops Slashing Car Tires at Protests in Minneapolis
I mean, Walmart is also mega huge, and also allows 3rd party sellers on their website. is it troublesome that Walmart also promotes their own items or the items where they make the most profit first?
Nomad, Consul + Swarm is still a lovely solution and I prefer it a lot to K8s. K8s is a big monolith and often way too complex for my personal use cases.
I hope Hashicorp sooner or later builds a proper replacement for Swarm so that we can have overlay networks without hassle. I know there is Weave, but never tried it.
Another good reference for sous vide safety is Doug Baldwin: https://www.douglasbaldwin.com/sous-vide.html#Safety

He has a fairly exhaustive explanation of the different food-born microorganisms and how to kill them.
I hadn't thought of it like that. But is it any different than if they paid for analysts to provide them that info?
"Meuhmeuh TV" ... brings back some greats memories. Finding a TV card, downloading a key on a strange website called "bellevache.com". I miss beige computer and PCI cards...
Yes, this has certainly solidified my understanding of myself as an introvert... I am stuck home with my wife and two young kids, and I mostly want more alone time... I don't miss seeing other people.
Not even post-punk manc miserabilism? https://en.wikipedia.org/wiki/The_Fall_(band)
Ehh.. https://trends.google.com/trends/explore?date=2010-07-01%202...

Seems that people only started searching SARS in december by which the new coronavirus was already public knowledge or at least public rumor
I don't understand, wouldn't a concentrated social environment suggest very high infection rates, which aligns with the GP?
How about this appropriation?

Straight Outta Surrey: https://www.youtube.com/watch?v=Bj7J7vXCf5w

I am fine with it. But then again, he does acknowledge his sources:

Hip Hop Was To Blame After All: https://www.youtube.com/watch?v=FkES4anCYOw
But before you go to war, the leaders listen to a diversity of opinions. Could diplomacy work? Could sanctions? What about an alliance prior to war? Could we use covert methods? The problem here is that we waged war without having that discussion. We went straight to the Generals (in our case, epidemiologists) without getting the opinion of the diplomats, allies, covert ops (economists, labor groups, civil rights groups) etc.
I don't think anyone's saying they're aiming at herd immunity any more, are they? The European and North American countries opening up, which is all of them, are just saying they have the situation generally under control enough to relax restrictions.
This is wonderful! I hope you wrote up how you put all this together somewhere? Link to a blog post or something?
> We would need to build/staff a full-time Compute team

This actually was a very real problem at my current job. The data pipeline was migrated to k8s and I was one of the engineers that worked to do that. Unfortunately, neither myself (nor the other data engineer) was a Kubernetes guy, so we kept running into dev-ops walls while also trying to build features and maintain the current codebase.

It was a nightmare. If you want k8s, you really do need people that know how to maintain it on a more or less full time schedule. Kubernetes is really not the magic bullet it's billed to be.

> Managed Kubernetes (EKS on AWS, GKE on Google) is very much in its infancy and doesn’t solve most of the challenges with owning/operating Kubernetes (if anything it makes them more difficult at this time)

Oh man this hits home. EKS is an absolute shitshow and their upgrade schedule is (a) not reliable, and (b) incredibly opaque. Every time we did a k8s version bump, we'd stay up the entire night to make sure nothing broke. We've since migrated to cloud functions (on GCP; but AWS lambdas could also work) and it's just been a breeze.

I also want to add that "auto-scaling" is one of the main reasons people are attracted to Kubernetes.. but in a real life scenario running like 2000 pods with an internal DNS, and a few redis clusters, and Elastic Search, and yadda yadda... it's a complete pain in the butt to actually set up auto-scaling. Oh, also, the implementation of Kubernetes cron jobs is also complete garbage (spawning a new pod every job is insanely wasteful).
Yes, higher dose/severity probably means more likelihood of detectable antibodies:

https://www.biorxiv.org/content/10.1101/2020.05.21.108308v1

> These data show that systemic IgA and IgG production against SARS-CoV-2 develops mainly in severe COVID-19, with very high IgA levels seen in patients with severe ARDS, whereas mild disease may be associated with transient serum titers of SARS-CoV-2-specific antibodies but stimulate mucosal SARS-CoV-2-specific IgA secretion. The findings suggest four grades of antibody responses dependent on COVID-19 severity.

But this does not eliminate the possibility raised by the GP, that some people could be clearing even a severe infection with antibodies that are not specific to SARS-CoV-2, and would never get a positive result on a highly-specific test.
I used to think backbone was kind of cool! RIP I guess.
I watched my son have an A/B test. His school was bilingual (German/English): English was taught by non-German teachers, in English only (starting in grade 1); some of the teachers couldn't even speak German (how does that work?).

All the subjects except English require the kids to use fountain pens and of course use the German letterforms. The kids' handwriting was clear as a bell right from grade 1. In the beginning they had workbooks that also showed the stroke order.

By contrast, although supposedly the same rules applied in English (foundation pens and German letterforms), in practice the English teachers didn't care what writing implement was used and paid no attention to handwriting whatsoever. As a result these same kids drew often illegible scrawls when writing English which they could otherwise speak, read, and type just fine.

Fun trivia: The first graders learnt one letter of the alphabet each week; in English this was "A" the first week, "B" the second etc while in German it was frequency order (R, S, and E were among the first few IIRC)
It's not just infection rates, it's also dose/severity. See my linked paper.
KrattAI: Estonia's National Artificial Intelligence Strategy
> Amazon Basics has an advantage over third parties

Totally agree. But this isn’t an economy of scale advantage.

SoftBank-backed companies had a capital advantage over their competitors. That isn’t per se an economy of scale. Amazon’s products have a distribution advantage over smaller competitors. Again, not an economy of scale.
Theoretical competition =/= actual competition. Yes, that could technically happen, but Amazon's market power makes it extremely difficult. Here, there's a two-sided marketplace (consumers and sellers) where Amazon has both sides. It's not enough for one side of the market to decide they want out. For example, see what merchants have done with Shopify and the Shop app (merchants are all on board, but consumers don't care).