skysight-inc/HackerNews huggingface dataset:
We're down only 12% from an all time high. It's only been a couple of days since the market reacted to Coronavirus. It's possible that if you buy now, you'll soon lose another 20% or more. At the same time, trying to time the bottom is a gamble. Dollar cost averaging might be the best & simplest choice for a conservative investor.

(disclaimer: I have $280 SPY puts expiring in April, and tomorrow is probably gonna be a great day, personally)
Why are you looking for a low? The market was at a high and what you should've been looking for was a downturn.

Timing days is impossible. Timing a trend over months is what I'm talking about, and anytime in the last 2 months was a good time to allocate 1-5% on making money or protecting your investments from a market drop.

At this point, if your investments have lost value then sell some covered calls to make income while you stay out of the market. We have an entire summer of disrupted global trade coming, don't buy in until that's over.
I don’t think it’s actually that widespread. You’re looking at a vocal minority; most people on balance enjoy the social (and other) benefits of co-located work, they just don’t blog about it.
What we do to prevent old people dying - fathers, mothers, grandparents - will have a huge economic impact.
It's a nice click bait article, it isn't explicitly mentioned the article but it's implied that if the COVID-19 got out of hand the government could shutdown the Internet. It can't happen in the U.S.

There is too much critical infrastructure that relies on the Internet, and I'm not talking about Government stuff, I mean water utilities, electric utilities, gas utilities, finance, and not their SCADA systems, but their ERP systems, finance systems, etc. Almost all B to B commerce runs across the Internet. I'm sure there are still some hold over dinosaurs, but most things traverse the Internet.

Trump is doing everything he can to placate big business and the stock market. If he were to turn off the Internet he would stop almost all U.S. Businesses, it would be like driving into a 30 ft thick concrete wall at 180 MPH.

Turning off the Internet would also cause a public panic of epic proportions, taking a bad situation and making it so much worse.
What does "50k of time off mean?" They were going to give him vacation time accrued or something else?
Sure, but Luna Bar Protein isn't designed for athletes...
How is it not obvious that fewer humans would mean less pollution and carbon emissions?
Playing a role in exposing inefficiencies, and fulfilling basic needs, that governments and health care systems in far poorer countries across the world have had no trouble doing so, are very different things.

This appears far more of the latter.

I mean, the article says they will be able to do about 400 tests a day.

That’s a fraction of the number of tests poor developing countries have been doing for weeks now.
Hunstable Electric Turbine can produce up to 3x the torque of other motors
In low corruption countries there is corruption but at a larger scale at a higher level as few people would want to risk it unless we are talking millions. Or it's legalised like in the us in the name of political donations. These same Western companies pay bribes and do corruption in the third world and are even protected by their governments.
The relationship in the dataset seems pretty clean and clear cut, so you don't really need as large a dataset.
Unfortunately the current rates are based on people (mostly) having access to forced respiration devices. 1/5 people who get Covid require external oxygen...
Irish Conservatives Sting Antifa with Honeypot Project
Meta: I have an eye strain each time I have to figure out which of the two things ML stands for. (Well, "Standard" kinda helps in this particular case, but I do not trust myself.)
A 40% false positive may be acceptable for purposes of quarantining, so long as the false negative rate is low and the percentage of healthy people being tested is relatively low. It'd be a bit like a bloom filter of quarantine. Can this person skip quarantine? Test says okay. Can this other person leave? Test says no, but that's not solid evidence that they have the disease.
Pleroma is built using Elixir + Phoenix (iirc), which has excellent Postgres support with Ecto. That could have been a design decision. Postgres also supports some features SQLite doesn't, such as array types. For certain applications (such as tagged imageboards, boorus), that makes anything but Postgres nearly a non-starter. SQLite data type storage can also be a concern.

Chances are, if you have a server capable of running the Elixir + web framework stack, storage space for cached images, and a proxying web server, Postgres probably isn't much of an overhead on top of that.

Bare in mind that each fedi instance dosen't only host the content generated by users, but also whatever content they repeat/reply to. The fact it needs to be stored (or cached) is one reason why there's so much blocklisting/defederation - because people may not want to host certain content from instances known to commonly host it. It may even store more from the public timeline (I'm not sure about the specifics of Pleroma). Nevertheless, even with five users, you can fill up quite a lot of space in a database and on the filesystem.
Yea, because people interpret it as extremes.

Anytime in the last quarter with constant news about all time highs, record low interest rates, overbought stocks with extreme ratios, and a global pandemic affecting supply chains was enough to try and allocate some attention towards a downturn with cheap bets or portfolio protection. 1-5% on puts is well within standard risk management.

You don't need to be a daytrader or prophet for any of this. If you missed the drop and positions have lost value then sell covered calls for income. Then wait it out because we have an entire summer of disrupted global trade coming. Don't think about buying in until that's over.
Absolutely true. But a vaccine is not the only possible endgame, and there is no question that unprecedented resources will be used for this one.
High rates of corporate debt are misleading. We've had a decade of essentially zero or near-zero interest rates. We've also had companies that generate profits on an almost unprecedented scale be able to (legally) transfer IP offshore and essentially engage in IP licensing as a form of transfer pricing (which is otherwise illegal).

So you have a bunch of people who would rather borrow money at near-zero rates than repatriate profits that they'd then have to pay taxes on. This is just deferring tax debt indefinitely. Worst case scenario for the tech companies at least is that they need to repatriate some of their mountains of cash (and possibly downsize to reduce costs).

I don't know what fraction of corporate debt this covers but given the size of the tech companies now, I'd be surprised if it wasn't a significant chunk.
Not an expert, but even if the warm weather doesn't make a difference, I think longer days and more sunlight will help disinfect the environment.
I think both “Expert C” and “Modern C” do a reasonably good job working through memory management patterns, strategy, and constructs. However, I’m using this comment as an attempt discuss another topic you raised in your comment.

I don’t mean for this to be flame bait, but I do think it is worth pointing out and discussing if you desire. The concept of memory management that is presented in a majority of the Rust that I have seen written outside of deep library code and the parts of the low-level implementations of some standard library functions has very little relation to the analogous concepts in C. I’d say that what Rust considers memory management in average code is more similar to programming in C without using any heap allocation. I could be wrong or could just have not seen the right code bases, but there is very little C style byte level ‘data structure’ layout design and then the allocation of those sorts of data using multiple allocation strategies.

I certainly understand that the above mentioned constructs and patterns are really not part of Rust’s idiomatic usage, and that a chunk of C’s allocation options are semi-prohibited because of Rust’s memory model. But, if you are coming from Rust and going into C, the differences are far greater than the similarities in this area.

I’m certainly not questioning your credentials, experience, or ability, I really just feel like this area is lacking any substantial discussion where said discussion is not focused on the merits/drawbacks of the language design. You clearly know Rust and seem to be open to learning or working with C, so it isn’t about Rust v. C, it’s about compare and contrast, and highlighting the fundamental differences that could cause some mental roadblocks.

P.S. Sorry for rambling, Day Light Savings time is kicking my ass.
Yeah they could sue you, and you'd have to get quite deep into defending it because your best shot at a defense (depending upon what exactly they told you) is probably estoppel, which is an affirmative defense you could win on I think no earlier than summary judgment. That is to say, after you're bankrupt.
Every year the flu kills 640,000 people world wide. Right now we are at 3648 from coronavirus. Also there is a lot of evidence to suggest that the actual number of infections is much larger than the reported numbers. This means that the actual death rate is much lower than what is reported.

All of this smells like a massive over-reaction to the coronavirus.

There has been a correction to world markets going on for a while with the US being a possible exception. What actually shakes out it tough to say. Sadly, the markets are controlled just as much by sentiment as by actual hard data so...
Old people dying is not a good sign either.

Please show a little compassion for your elders.
Here in Seattle folks are starting to look at salmon "pre spawn mortality" suspecting chemicals from worn tires.

https://pubs.acs.org/doi/10.1021/acs.est.8b03287
expert epidemiologists are predicting billions infected and millions if not tens of millions of deaths

Name two.
Women Power: 5 Korean startup CEOs conquering the business world
I’ve seen no evidence of this rate of false positives, only for false negatives (which is a problem across these tests for respiratory illnesses). What’s your source on the false positive rate?
Could be catastrophic. Banks have lent out half a trillion to fracking companies who need oil to be at least $50 a barrel to be profitable. If those frackers go out of business, combined with COVID-19, combined with literally no ammo left (deficits sky high, rates already super low).... it’ll be 2008 all over again.
Something people are misreading is that currently, the thing that is increasing exponentially is testing capacity.

The thing you don't need testing capacity to detect is the serious and critical cases. So, look at the "Total Number of Severe or Critical Cases" over time. [1]

Note that for cases which will be "severe" that the median time to onset of severe symptoms is 1 week (WHO report). Median time for any symptoms is 5-6 days. So essentially, if it is going to get bad, it gets bad quickly.

What this indicates to me is that now that there is finally some actual testing capacity being deployed, we will see a lot of "new" cases, but they are old infections. Growth of the case count is not indicative of the actual current "growth factor", or R0 in the community.

[1] - https://www.worldometers.info/coronavirus/coronavirus-cases/...
If someone gave you a set of unassembled Ikea stuff and you didn't know if you could use it until you assembled it.

Who should pay for the assembly of the stuff ?

Would you put it together for free just to decide ?

Who pays for the used resources ?
That may be true, I wonder what other cultural factors are at play as well. It may have been that people were more self-sufficient then, and thus it was not as disruptive to isolate.

It seems appropriate to bring up on International Women's Day that women's labor at the time was largely that of 'homemaker' - a highly self-sufficiency oriented role. To put it in tech terms, there were a lot more people WFH, and a lot less dependencies on external services. Women were only 20% of the labor force at the time vs 47% today [1].

I say this NOT to advocate for a return to this state, just pointing out a large factor to consider, one often overlooked.

[1] https://www.dol.gov/agencies/wb/about/history
It's Time to Stop Dancing
You don't find it terrifying that anonymous unaccountable randos are displacing the mainstream media?
Yes - negative impact.

At the end of the day renewable energy is just producing a commodity product - electricity. As fossil fuels decline in price the wholesale price of electricity declines making it less attractive to build wind/solar etc. Existing plants will obviously stay online but people who invested in that sector will be hit.
Why is the US apparently responsibile for this financially in the first place? For the future, will other countries join financially to up our global defenses against future outbreaks?

It sounds like the US took up a global cause on its own and when the clock ran out they didn't renew because that emergency had subsided.

Is this what was being pinned as Trump's "fault" in recent press and social media?
Been using memcached for >7 years now. Just thank you! It's been adding great benefits to almost all of my projects.
But low oil prices are an effect of a recession, not a cause.
I also think that human population is too much (the other species isn't so quite), and do not have any children myself, and would suggest to others. But, it is to be voluntary. I am not try to force anyone please! This is like VHEMT, however, I am not suggesting that human should be extinct; merely, less population by voluntary. I also think that, since not everyone is going to listen/agree anyways, it isn't going to be extinction especially since currently human population is a lot. Therefore, the method to do is good but not their intended end goal which is human extinction, and also will not be the result of their method anyways, due to what I explained, so it works. Extinction of non-human species is a bad thing to do, but also human because human is also one of the species.
I haven't seen that. Do you have a link?
vol is at historic highs. literally double previous highs, last week.
Aussie telcos could face retaliation from China after Huawei failure
It occurs to me that antibodies for diseases would make an interesting approach to age estimation. In the 1918 flu older people were spared. This is presumed to be due to the fact that they had an immunity due to an exposure in their own youths.
Source is who technical guidelines for testing on their site.

I can't see any easy way to get that info from your description. Can you give an actual link?
The point is, it's probably not enough to live on for people who may already be in a precarious financial state, anyway. No comparison is needed to make that point.
China said banning flights would be ineffective. They’ve always said quarantining travelers would be the preferred response.
This is total bs and completely dependent on the context and person. I personally would give 500% more effort and be 1000% more loyal to a company let me wfh.
You think spending more 1/3 of your gross income on housing is sensible? Keep in mind that 1/3 of gross is probably more like 1/2 of take-home.
Here are a two threads I just read that I think illustrate the breadth of perspective that isn't possible with just centralised reporting;

https://twitter.com/balajis/status/1236815743079067649

https://twitter.com/tony_zy/status/1236139704627728385
I'm a little disappointed this didn't get more play. Only found it because I was curious what details Oxide had leaked out over the last couple months.
This is absolutely false and yet another reason why journalists shouldn’t play epidemiology.

Mitigating the rate of spread leads to less deaths overall. If everyone got it at the same time, there wouldn’t be enough healthcare system capacity to handle it. This isn’t a new concept, it’s well-known within epidemiology. Cities with early interventions in the 1918 flu epidemic had 50% lower peak death rates. If everyone got it at once, many more people would die than if the same number of people got it over a longer period of time.

The following is my speculation, but if we woke up tomorrow and everyone suddenly had the coronavirus, then the economy would be in much bigger trouble than it would be with a slower rate of infection.
Funny that people are downvoting rather than arguing a case why not.

Maybe these are inconvenient truths?
Women reshaping China’s tech ecosystem from the ground up
Well, first of all, SDI is not taxed by the feds or by California except when used as a replacement for unemployment insurance (it is paid for by taxes and you just accrue a benefit when you make a claim—it is not taxed again) so there’s a critical flaw in your reasoning. Secondly, I think the idea that someone could not make do on $5200 a month would strike many people as shocking, especially given that puts you above the median American. Most people are more precarious than that.

I understand HN skews more toward extremely expensive CoL areas of California, so I grant that there may be many people here who legitimately could not although I don’t think SDI should be expected to cover 100% of living expenses for extremely highly compensated individuals in the most expensive area to live in the state.

That aside, SDI is one of the best public goods California has. I had surgery this past year and was able to take 3 months off work with no impact to my financial situation. The benefit almost replaced my take home pay (since, again, it was not taxed) and then my company topped it off. It was sort of surreal to be paid equivalently for not working. Unaccustomed to that as an American.
Employee retention is easier when life itself is effectively conditional on employment.

On the other hand, companies also spend significant resources being health insurance brokers. Getting rid of that burden would be particularly helpful for small businesses and startups.
Which is inefficient and pointless compared to just using Redis with data structures that you can manipulate directly.
> Land of the flea, home of the plague

That sounds like a much catchier slogan for tourism than the current "Here, Every True Adventure Has a Story". https://www.newmexico.org/
The Power of the Passive Protagonist
You can learn by playing around, but its very helpful to have a guide in the begining.

I had to start coding for work in C and without some good footing it was frustrating dealing with older code and creating new things with my very limited experience. (I had c++ which isn't the same.)

Having spent a week going a book and getting up to speed helped greatly and increased my enjoyment, reduced my frustration fwiw.
I wonder why this virus will and not H1N1?

I still remember how scared people were during that pandemic.
Terraform has some good presentations on it.

At least the conference they had presented this material. I might have it saved somewhere and will look around and reply if I remember
I understand where you’re coming from regarding the tone of the memo, but I think it’s important to keep in mind that this was not a public critique. The author mentions in a reddit post that this was originally a confidential internal document, and written in the context of a very small group of like minded coworkers who knew each other personally. I have certainly said or written things to coworkers of mine, who I count as respected friends and confidants, that if taken out of context and published for all to read would sound obnoxious if not reprehensible. The author had no idea that this private critique would be read by the general public 40 years later.
You're multiplying the input by a constant factor. If wear is proportional to (weight per tire)^4, and you've halved weight per tire by having twice as many, you've just reduced wear to 6% of its original value.

I don't know if doubling tire counts really does this, but it's hard to see why twice as many axles would help but tires per axle would not. It's possible (the pressure underneath the tires is reduced, but the tires exerting pressure on the road are closer together) but counter intuitive to say the least.

And there's no proof in this thread that it doesn't help except for masklinn's misinterpretation of the original study.
BANG - thank you.

Brand new tires have a molding protectant layer on them. "Scrubbing" is common in auto racing, on a new set.
Stalin’s Danish Mystery
> highly paid Silicon Valley engineers. Once people are working from home most of the time, it’s not much of a stretch to hire cheaper engineers from a few states over at literally half the cost

What’s wrong with this? I’m one of these engineers in Silicon Valley who would like to live near family. “Half the cost” is still massively higher than the local rate in my home state, which I would happily accept.
https://beta.trimread.com/articles/7070
> This is the most common outcome of the disease, 99% of cases nothing will happen. You don't need to do anything at all, clears up on its own. For each one in a hospital [...]

This is where you're off the rails. You're thinking only in terms of danger to the infected. There aren't going to be hospitals in a pandemic!

The problem with this is that that behavior (i.e. "You don't need to do anything at all") tends to infect everyone around the sufferer! And if the virus is a routine flu where 70-80% of the population is immune, that's fine. It spreads a little and stops.

This doesn't work like that. No one is immune to a novel virus. This will spread across the world and infect whole ?!@#$%! cities at once, overwhelming health care facilities with infections that in a normal situation would be trivially treatable in a hospital. But we'll run out of hospital beds given your insane advice, and people will die for lack of care. Seriously, in worst case scenarios literally millions of people are going to be dead by next year in a situation where we could have saved them had we simply done obvious stuff like testing and quarantine and not told them (sigh) "nothing will happen. You don't need to do anything at all, clears up on its own."

Stop this. Stop it. Stop listening to whoever is telling you this nonsense. It's going to get people killed.
I misphrased that - I meant to say in the long term. I agree that we will see a quarter or two of eps impact due to virus. But for a true crash the market needs to price in a longer term impact due to the virus - which seems unlikely on its own. However we certainly can see a crash due to sentiment and valuation changes prompted by this as a catalyst.
Forecasts are for testing a vaccine in six weeks, rollout in 3-4 months.

But billions of people will suffer before this blows over.
OP mentioned he purchased puts when S&P was at 3330.
This is incredibly impressive.

My only domain knowledge for this thing is building a 3d printer from scratch, but the design and micro-manufacture of this thing, combined with the software that allows it to do what it does, is jaw dropping. Great work!
Excellent, thanks for that!
Yes, there's a lot of 10-year bull run market dynamics that found a perfect catalyst with a global pandemic.
yes it is

>In computer vision, speeded up robust features (SURF) is a patented local feature detector and descriptor.

https://en.m.wikipedia.org/wiki/Speeded_up_robust_features
> Countries where the CDC is planning to scale back include some of the world’s hot spots for emerging infectious disease, such as China, Pakistan, Haiti, Rwanda and Congo.

Why was the United States subsidizing China which is the world’s second largest economy and has a military budget of $228 Billion making it the second largest military spender ( https://www.worldatlas.com/articles/countries-with-the-bigge... )