skysight-inc/HackerNews huggingface dataset:
If you squint and look at a corporate bond funny, it has an asymmetric payoff profile that looks an awful lot like selling a put option on common equity. If the company does badly you can lose up to a certain maximum, and if it does well you get to book a little bit of profit. Everything else is relatively unimportant bookkeeping and technical details that I am not familiar with because this is a member of "things I read about and found interesting and understood", not "things I have done in the market to make money".

You can take on the equity risk either by delta-hedging it and shorting the underlying stock like you would when selling options, or you can buy options written by people who likely end up doing delta hedging. On the bond side, you can either buy the underlying and hedge interest rate risk in the treasury futures market, or you can take aim at the credit default swap market and buy/sell the credit spread directly. Either way, you're basically just modeling the relationship between different prices in a company's capital structure and noting how much money your combined position makes if prices converge at either corporate success or bankruptcy.

> What's the sticking point here? What if you have competitors doing the same arb?

You have competitors doing the same arb, there's no free money to be made. My point is that when a company decides to sell bonds, there are people who will buy it based off the solvency risk implied by equity option prices.

> Seems like it's not a pure guaranteed arb.

It's not, but the side I described generally doesn't have lurking steamrollers to run you over. Model breakdown is a thing that happens, especially during crises, and especially if you slightly under-hedge to avoid paying carry costs for the "equity does badly but no bankruptcy" profit case. Plus, there's no guarantee that buying put options or shorting common equity will make a profit if the underlying company goes kaput (for example, if trading is suspended in the underlying, your options can expire or your short position can charge you borrow fees while you are unable to legally purchase shares to deliver into the contract or to close your short).
> Not that it actually matters, of course.

It matters if you care about consistency. After learning the simplicity of lisp, all other use of special symbols for infix syntax strikes me as arbitrary and fiddly. Arbitrary choices should be left to library (function and macro) developers, I appreciate that the core language is simple, extensible, and consistent.
> How long can it take it build machines that produce masks?

Depends on the masks. Surgical masks are material-constrained. N95 masks require manufacturing using specialized and very precise machines, which are themselves built in... guess where. China. This pandemic hit the world in precisely the best way to disrupt the global supply chains.
First get this validated by a medical authority. Find the best one you can.

Next, send your idea and medical validation to the Bill and Melinda Gates foundation. You're not contacting Bill, you're contacting his foundation. Their doctors will look at your idea and can present it to Bill on the next scheduled call.
So what you're saying is that it's disgustingly ridiculous that they won't fire a bunch of people?
Nonsense? In comparison to Trump? Really?
I don’t care if anyone reads mine.

If you need it (happen to find it on a search engine and click on one of my posts), you’ll see what’s in it.
Plenty of states have stay at home orders. Mine does. It isn’t clear to me the federal government has the authority to issue that kind of order, short of martial law. The US government isn’t identical to many other countries. States are like quasi-countries, legally, authority-wise, and culturally.
Office noise generator
A fantastic manager doesn't make you assign points to your work to fit inside an arbitrary time box.
Corona Virus CheatSheet
I've won a case in the LTB, and being on the winning side means basically nothing. The rulings are not enforced, and making them enforced means having to go to court a second time.
Face shields aren’t protective wear in public. Taking them away from doctors and nurses however does increase mortality for them and patients in general.
Very good question.
Probably because an online service that lets you sign documents electronically and keeps these documents in a public repository is so simple these days that would make evident that many notary services are not needed anymore
It looks like you can take a Raspberry Pi (Zero variant or 3A+ should all work since they support gadget mode) with camera module and have it behave as a USB webcam. https://www.raspberrypi.org/forums/viewtopic.php?t=148361

I haven't tried this, but will ask one of our team to give it a go and confirm - that would make a more affordable option around £40 or so.

Disclaimer: Co-founder of Pimoroni (Raspberry Pi re-seller)
Sold out couple weeks ago in Canada, asked hackernews about apps that turn android phone into webcam. Two that worked fine:

iriun

droidcam

Turns out your phone's selfie / front camera and microphone is vastly superior to most laptop webcams. Grab yourself selfie tripod. Lots of compliments about picture and sound quality. Coincidentally WSJ covered this topic yesterday.

https://www.youtube.com/watch?v=daqPLDDAntA
Play 2048 Game
> I don't think they're at all afraid of being accused of being partial.

This rings true.
I agree completely with all you say, particularly the incentives to favor guest outcomes. There is a rising tide of hosts scarred by Airbnb here in Bali. The market is (was) ripe for alternatives.
Laptops were also in very high demand 2-3 weeks ago when quarantine started for the majority of us (I live in Romania).
Notaries are not required in the United States. 28 USC 1746 provides an alternative. Bureaucrats will, initially at least, kick and scream, but once they (or their legal counsel) read the statute, they acquiesce.
I've read that same thing about the 2004 Boxing Day Tsunami. Other countries worked hard to help their citizens and get them out. The US just abandoned theirs.
I would like to ask _why_ does this nightmare exist, but is that the right question? What is the right question to ask here.
What about reaching out to the mods of https://Reddit.com/r/Covid19Positive ?
A company whose product is technology rather than something like advertising, media or hotel booking.
Because they’re dying doesn’t mean shields will help. I think the medically inclined people in this discussion are making reasoned arguments. You however are just appealing to hysteria.

I can imagine so many other more likely reasons for those deaths than face shield usage.
I'm glad folks like you are looking out for things like this and saying "not ok" (and posting fixes)
Ooh, good idea. I have a friend who’s got her restaurant on life support. She could bag up flour and sell it!
I'm still skeptical that this is an actual thing. I think people might just be overestimating how clearly other humans can visualize something in their minds.

Do people with "aphantasia" see visual imagery in dreams?
I am by no means an expert on that topic, but I would assume that while a big cloud instance could go far with regards to CPU and memory, network bandwidth/traffic could quickly become an issue with several 1000 users.

Depending on the amount of work you are willing to put into this, you could even start with a load-balanced setup were one or more web servers, jicofos and prosodys are distributing the load to several videobridges. That would make it easier to scale the system up by adding additional instances.
After bars and restaurants closed down here, some 3 weeks ago, various alcoholic drinks have become very scarce. People are just hoarding wines and beers like never before - was going to pick up a couple of bottles of wine, but walked out with cheap vodka.
Yeah, I get that. I knew him before he was famous for bugtraq and the stack-smashing paper, so for me it was like watching a rockstar hacker go from his garage to Madison Square Gardens or something ..
Note that you can use your smartphone as a wireless webcam.
In Singapore, "Jail, fines for employers who do not allow employees to work from home where possible"

https://www.channelnewsasia.com/news/singapore/covid-19-work...
http://lighttable.com/ might be interesting for you if you've not seen it before... It's looking at some of those concepts. (I've not used it personally, but heard good things)
Face shields aren’t seatbelts. Someone put it well when they said they’re ejector seats. I assume you aren’t flying jets or intubating patients.
Oh well, I pretty much did the same thing at the same time! Albeit with some tests/docs :D
https://github.com/ndrpnt/terraform-provider-gmail
These examples seem somewhat contrived, but of course it comes down to the use case of the database. I'm sure Prince remained registered under his legal name on contracts, checks etc, even if he used the symbol in marketing. But a database over bodies in a morgue obviously need to be able to support unidentified bodies.
It follows logically from past behaviour and statements of that administration. The weaponization of demagoguery should be of higher concern than this pandemic.
but why polute host or go back to VM overhead per application if we have already a solution that is easier to handle? even just in terms of build & launch time it's quite a bit more performant to use containers vs. VMs.
1. Early mass testing might have have flooded hospitals with scared people, the same way it seem to in Italy. Whether it was incompetence or reluctance, it may have been a positive thing that there wasn't mass testing.

2. Containment wasn't seen as a viable strategy among virtually any free and democratic country. Locking citizens up in apartment buildings wasn't considered an option. What free country has achieved containment? Maybe South Korea?

3. The U.S. national stock pile had millions of PPE and 12,000+ ventilators. The U.S. miltary also supplied thousands of ventilators. I'll ask again: which other countries had comparable national stockpiles?

4. Commercial cargo is extremely expensive currently which means demand is high and supply is constrained. I'll ask again: which countries have their own fleet of global-reach cargo planes?

5. Okay it's "just a floating hospital" so how many other countries have fully equipped hospitals they can float into port within days?

6. Is everyone's version of a field hospital up to the specifications of the U.S. Army Corp of Engineers? I doubt the U.S. field hospitals are inferior to any country's.

7. The FDA and CDC has been working with drug and testing companies quite competently, as far as I can tell. Other countries will almost certainly benefit from the work the U.S. FDA/CDC are doing.

8. The Abbot Labs test is in use, and it matters now. Again, who else had such sophisticated tests so quickly?

You (and many others) seem to be watching a lot of news media that is designed to entertain you, so you keep watching. It's not a bad thing that the U.S. is held to a higher standard but you shouldn't be ignorant that you're holding it to a higher standard. And you should keep your facts straight. Otherwise you risk buying into a narrative that, while entertaining or appealing to your biases, may be largely false.
That's a good suggestion as well. If the plan is to run this instance as a non-profit for local users, it might also be possible to ask local ISPs to sponsor a box. That could help keeping traffic local and latencies low.
I'm glad my functional programming classes used Haskell instead:

Hugs> reverse ["Wikipedia", "over", "DNS"]
["DNS","over","Wikipedia"]
Cheapo crap. Couldn't they add an augmented reality HUD projector so that "STAY FUCKING HOME" never leaves host's field of view? Also questionable is the fact of this concoction being removable. Protection should be permanent, not temporary! Who knows what hazards come next after corona?
Yeah, weight plates selling for $3-4 per pound. Usually less than $1. Can sell a few plates to recoop home gym. Strange times.
Ask HN: Startup job offer with common stock, but preferred stock price quoted?
I'm looking at a startup job offer that includes options for common stock, but when I asked for more details they replied with a scenario where the preferred stock price was used in evaluating the current value of the common stock options associated with the offer, which confused me since there is a big difference between the two prices and they are for different things anyway.

Is it common to use the preferred stock price when presenting valuations and / or illustrative payout scenarios for common stock? What's the reasoning behind this? How would it work given the difference of price?
Unless the spread was much faster in some areas than others due to population density, for instance. Back to the confounding variables question...
There’s no mental gymnastics happening. You’re just ignoring what medical workers are saying and assuming your intuition is infallible. It’s easy to understand why it’s dangerous to deprive those workers of shields to benefit to yourself. And manufacturing cost is not the same as availability. We don’t have instantaneous infinite supplies of these.
I believe a big issue with this will be floating point differences. Due to the network being essentially recursive, tiny errors in the initial layers can grow to yield an unrecognizably different result in the final layers.

That's why most compression algorithms use fixed point mathematics.

There are ways to quantizise neutral networks to make them use integer coefficients, but that tends to lose quite a lot of performance.

Still, this is a very promising lead to explore. Thank you for sharing :)
I know you’re being facetious, but I certainly hope he does no such purchasing.
And maybe because 'folding' could mean 'starting to crumble' or anything else related to business continuity management.

I suggest changing the title to Folding@home, the more common name for this type of project.
Because O&G are largely funded by paying customers and not government subsidies.
Presumably you are asking for

- Website where people who fit criteria can register

- some form of triage (symptoms checking, contact tracing)

- Then collection. Presumably people will need to supply mucus samples, and have those samples collected safely. This sounds difficult and seems like the expensive and hard to scale part. But I can imagine a fleet of drivers with some training being able to collect and store samples in "proper" equipment. This is well
out of my expertise.

- testing / sequencing (lab based). This you seem confident on.

Is this a good idea - I don't know. Is it possible - yes it seems quite doable. Does it need billg? I doubt it. Plenty of people have cash and now have motivation.

Good luck.
OK, here's a peer reviewed paper for you, from the International Journal of Antimicrobial Agents:

https://www.sciencedirect.com/science/article/pii/S092485792...

In OECD countries. the mortality rate for SARS-CoV-2 (1.3%) is not significantly different from that for common coronaviruses identified in public hospitals of Marseille, France (0.8%; P=0.11).

The problem of SARS-CoV-2 is probably overestimated, as 2.6 million people die of respiratory infections each year compared with less than 4000 deaths for SARS-CoV-2 at the time of writing.

So this paper agrees with the ones in the page you cited as nonsense. Will you now do an about-face and demand Twitter erase tweets by public scientists demanding mass lockdowns?

Peer review is no panacea. It can rapidly become a circular argument - someone is an expert because some experts say they're an expert. OK, who says those people are experts? Ah, the first set of people we're trying to evaluate. Peer review lets all sorts of rubbish slip through because the peers doing the reviewing aren't usefully different to the people being reviewed (same background, same education, same social circles, same incentives structure). But it can be great at shutting down outside voices and reinforcing groupthink.

When there's expert disagreement about something important, there's typically no substitute for just letting people wade in there and form their own opinions. Twitter (of all companies!) is nowhere near intelligent enough a group of people to resolve every controversy in every field of study in the world, indeed the fact that they're even trying suggests serious deficiencies of institutional analysis!
I mean you can't, but the secondary market for large private firms is rather well developed for the big players.
Speculation doesn’t make you right. “Likely to” counts for not much.

It’s sad you made that purchase. I wonder if that deprived a doctor or nurse of one. If they died, you’ve essentially condemned them to that. Is your own selfish neurosis worth that?
I just duck taped the selfie stick to the monitor's stand and use the phone with skype/zoom apps. Camera, mic are already there and you can use headsets with it.
Covid-19 When you realise your 2020 vacation is cancelled
This is demonstrably false.

HTML is based on XML and even if you remove JavaScript, you could still create XML tags and attributes that lead to malicious behaviour and information leaks.

Want to guess which vulnerability jumped from not being in the OWASP top 10 to being in the 4th place? XML External Entities (XXE).
> Great thread! I sometimes wish there was a variant of Hacker News that only had blog posts written by individuals.

on lobste.rs around 20% of the content or more seems to be submitted by the authors. They have a separate tag which tells if the submission is added by the author or by somebody else.
It is a good idea, but just like the other dozens of possible vaccines it still needs to go through all trial phases, so it's not quicker than the other vaccines which could 'potentially be deployed today' (RNA etc)
Yes. Only voluntary visualizations are impaired. (N=2)
I absolutely agree and think the same thing about Python - I dislike the module=file relation because I often want to split a module into multiple files and I also dream about storing code in a graph database often.
Yeah, I know. But it doesn’t seem worth it to buy a kg of flour just to make yeast for a single recipe ;)
Coronavirus: When using the C-word gets you blacklisted
I have this condition and used to think `mind's eye` was just an expression!

In this tweet, I'm a hard 5, while everyone I have spoken to is a 1 or a 2 - https://twitter.com/premium__heart/status/122561067717752013...

I do see visual imagery when I'm dreaming, but cannot voluntarily bring the imagery back when I'm awake.
I'd say this is an apples/aircrafts type comparison here.

I'd argue that domain names are limited: there is exactly one of each domain name, the fact that there is a practically infinite number of other different domain names isn't necessarily relevant.
Also the API forms a committed interface you are stuck with. Whatever way you want to "improve" your offering you have to make sure it's compatible with the old API, at least for a while. Especially as you can't reach your consumers.
You can do this and wait for days and pray you have not created some nasty poisonous culture. Or you can use human gut microbes to generate instant safe yeast.
That this article was written shows clearly that we don’t have enough of them and that any non-medical professional buying them is only contributing to the population of ill and the dead.
We had the same yeast problem and finally solved it by trying our local bakery, which happily sold yeast to us. Obvious in hindsight...
To be more precise, last info I read modeled the virus with exponential decay, with half-life measured in minutes to hours. After an hour (or 3h or 0.5h), half of the virus is already inactive¹.

Even after ~6 half-lives, remaining 1% of viral load is still potentially dangerous, but it's not a good basis for a test if you want it to be sensitive.

¹ Inactive does not mean destroyed. It may be possible or even easier to detect a partially decomposed virus, even with the current tests. Or not.
How to empower your remote data team
5G does not cause coronavirus. Here's how we know
Would you mind sharing some (or all) of your findings? I've never been to that part of the world (based in Europe) but been planning to prepare home made tortillas since last week. I'm struggling to find such in-depth insights on how to perfect the meal.
what about https://example.org/+rm+-rf+/ ?
Either they printed 2 trillion physical dollar bills or they didn’t. I’m saying they didn’t. I’m curious what imaginary comment it is you’re replying to.
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software
I have aphantasia and love the analogy to hashing. It matches my experience quite closely in as much as I can't really imagine faces in the abstract, but can verify a match in the real world with ease. Reminds me of NP-hard problems in that respect – verification is easy, calculation is hard.

With respect to not being able to imagine music though, I don't think the two are necessarily linked. I most definitely get earworms, and as a guitarist rely heavily on my "mind's ear".
Show HN: Fast and Encrypted key-value database for React Native
WirVsVirus and the hackathon approach to fight COVIT-19
So not so much hard to understand (at least for trained physicists at the time), rather too much modesty from Maxwell himself to shout about the importance of his discovery.
For realism, it should integrate people making their calls in the open space, the guy right next to you chewing loudly with an open mouth, the heated design debate occuring 3 desks from you and the salespeople celebrating their bonus with a lot of volume.

I do not miss the office.
I can't see an image but I can describe an image as though I've seen it which leads me to believe it's a deficiency in communication between the hemispheres of my brain.

I can still dream. As a teenager I learnt to lucid dream so I could use my sleep to visualize things. Interesting stuff.
It's the low murmur of the office and clickity-clack of the keys that is missing. Also that loud woman and that dude with the cough.
While possible, the notion that asymptomatic[†] cases are due to a separate less-pathogenic strain is both indeed a possibility researchers are thinking about, and yet also not (a priori) the only or perhaps most probable explanation for the wide variance in clinical outcomes we see. Other important, perhaps dominant, factors include heterogeneity in people's immune responses to virus--common in other conditions--and (possibly) a dose-dependence (e.g. if you are exposed to a high viral load e.g. by intense or prolonged exposure, some reports (but far too few for definiteness yet) are that clinical outcomes may be poorer). Though there are different COVID strains in circulation (see the amazing data tracking of https://nextstrain.org/ncov), with regards to the proposed hypothesis: there is no evidence that these strains show any difference in virulence (see e.g. the perspective of Francois Balloux at UCL: https://twitter.com/BallouxFrancois/status/12395362423558225...).
Many groups are attempting to scale up environmental genomic testing for COVID (see again the nextstrain site).

[†] Note that currently, researchers are rather vigorously debating the true proportion of asymptomatic cases (or distinguishing them from pre-symptomatic cases)--we need more widespread e.g. antibody-based testing to answer this more confidently than we can by indirectly fitting coarse time-series to simplified models.
The EU AI guidelines explained
‘Do Legal Tech Founders Need to Code?’ No, Says Survey
If you assume everyone had the same starting line then that makes the u.s. look even worse because we still haven't locked down as hard as necessary to slow down the virus.
Also computer headsets and hairclippers and outdoor table tennis tables etc etc
It's a neat idea, but I can't stand the ~12 kHz noise in the background, it makes my head hurt.

For reference, here's a spectrograph: https://i.imgur.com/AmgaxPy.jpg