skysight-inc/HackerNews huggingface dataset:
At a previous gig, we had a lot of systems named after animals, and I'd joked about wiring our alerting system up to emit the animal sound for the system that was paging, but I think I'm actually going to do that at my next gig. Outside the land of software, engineers debug systems using sound all the time - I think we're underutilizing our senses and our pattern recognition.
Filtering Files
The only measures that will prevent a large lockdown again in October are plentiful masks and plentiful hand sanitizer. So far I have seen neither. My estimate is that we have until August to get both is such high supply that people can buy them again and stock up, so that everyone wears them all the time and everyone can sanitize their hands at will. I think that may help in keeping the infection rates lower.

Also we need real-time mass testing capabilities.

Without all of these I can pretty much guarantee that the only weapon we have is lockdowns and there will be another one come flu season, possibly through Christmas until February/March. This is mainly because we won’t be able to tell the difference between the flu and Covid-19 fast enough.
per person traveling?

I sincerely doubt that.
I have two mutations on USH2A. It would be spectacular if someone could repair the whole gene.
That seems to be a common theme with all food in the US. The stuff normal people get in the supermarket is absolutely terrible, but there are some _artisan_ manufacturers that are actually good compared to the stuff from other countries.
Only 2 North American universities. 12 programs in California funded.
I could only drink filtered or boiled tap water when I was in the SF area. The chlorine taste is too strong.
I used to do that, but I switched to wiki-style [[links]] instead. But I can go back and forth with a regex.

There's some really interesting discussion about interlinked notes here:
https://news.ycombinator.com/item?id=22767658
Thanks! I wanted to share this with my dad and with the difficulty I had finding the "show thread" button on the Twitter mobile site I knew he would only see the first tweet then bounce.
lol you are a freak
Regarding Australia, yes, they discuss that specifically in the article I linked. That particular intervention is a lot easier to enforce when you don’t have a long land border with a country going through an outbreak, and a very large number of citizens presently in the neighboring country. Australia’s borders are closed, and they never really had a lot of community spread. Canada had significant community spread, and earlier, and a larger population returning from hotspot areas.

The point is a careful and thoughtful examination shows that a country’s geographic, social, and economic “natural affordances” are largely responsible for the differing COVID case loads, much less than the effective dollar amount “spent” on interventions. Spending on an intervention includes the economic hit as well as the direct cost. E.g. Australia was able to get a lot more bang for their buck because they’re an island and didn’t have a large segment of their population traveling in hotspots.

I think we agree on the vaccines. The point isn’t there’s something specific about coronavirus. It’s not a “meme” that we don’t have a coronavirus vaccine. We actually don’t have one. That just means we might not have as much experience ramping up a new one as we do, for example, with influenza, and there may be things we need to learn along the way.

A working vaccine or treatment in 12-18 months is a long way off.

If we are anywhere near 5% prevalence that means we are a lot closer to 65% (when herd immunity starts being noticing beneficial) than you might think, since it is non-linear.

Regarding ventilators, even in the general (non-COVID) case if you find yourself on one you’re about 50/50 not going to walk away from it. But with COVID it appears ventilators exacerbate the swelling in the lungs and in NY 80%+ of ventilated patients have died. [1]. That’s what I mean by “proven to be basically lethal”. We know the vast majority of COVID patients on ventilators die, far more than just the average ventilator death rate for pneumonia, using the same O2 saturation markers.

So doctors are moving away from ventilators and no longer using the typical O2 saturation cutoffs for ventilating because interestingly patients with lower O2 levels are not in the typical level of distress. It seems the CO2 is still getting out even though the oxygen is not getting in... more like hypoxia.

> It's true that in some cases oxygen is sufficient for some people.

We can agree on more than that. Luckily the fact is that oxygen therapy is sufficient for the vast majority of cases. Just do the math on hospitalizations and deaths in NY with the known variable that 80% that were ventilated died. QED the vast majority were not ventilated.

[1] - https://www.nytimes.com/aponline/2020/04/08/health/ap-us-med...
Raising taxes on the rich isn't going to do it either, the only way you get that money is taxing the middle class into the ground.

Or you just print the money, make it up out of thin air like we're doing now.
apathy can be part of dysexecutive syndromes, such as ADHD.

To be pedantic, apathy is lack of emotion and interest.

Often that is not the case in ADHD. The hallmark of that syndrome is the inability to follow through/self-regulate behavior/plan actions to achieve the objective they are interested in.
> As a side note, your theory that "Disarmament doesn’t prevent war. It only prevents winning." and “'Transparent and neutral international agencies' are a pipe dream." aligns well with fascist ideology.

Not as much as your style of naive pacifism did, when theory was forced to turn into practice. Fascists are aggressors who will exploit any weakness to their advantage. They don't negotiate in good faith, they will cheat on any disarmament treaty they can, and international agencies are a joke to them. Understanding the world as it is rather than as we wish it might be means understanding that people like that exist.

Having extraordinarily powerful nuclear weapons as a deterrent is a primary reason most of Europe is enjoying the longest uninterrupted period of peace since maybe the Roman Empire. Failing that, "neutral international agencies" who actually had the power to keep the peace could only exist if those agencies, themselves, were an armed hegemon. People with guns always get their way against people without guns. And it just so happens that there is an armed hegemon that actually keeps troops deployed across most of Europe and has done so continuously throughout this long period of peace.
Why would trains need hydrogen? Almost all are electric. If they aren't in your region, why not convert it to electric? Large ships, why hydrogen? Seems again not a good solution.
Praise the Lord, second commented post on Hacker News. (i try not to capitalize i) i had been diagnosed with OCD, ADHD, and eventually Bipolar Schizoaffective disorder. I had been on all kinds of meds including Haldol, antidepressants, and amphetamines like adderall. My psychiatrist back in 2003 said i was a 9 out of 10 of the worst cases he had seen.
I can now focus fine for over 12 hours, yet haven't even had coffee nor any medications in over 5 years. One big thing that helped me was that my dad here would start playing hymns on the piano and i would sing along, and my concentration eventually went up to about 3 or 4 hours, then eventually took up the piano myself and now i feel normal. Another big part was being able to spend time in prayer, fasting, and service to God and others. This helped me to have much more peace with what i choose to be doing, instead of feeling like i am wasting my life when something more important may be available. I am far from perfect but the Lord has been good to me, and i want to share He does miracles like always (i think this is kind of cool https://youtu.be/Pw9iSO7rUUY ). I do want to share how God has helped me through Jesus Christ, if i can help somehow please let me know in Jesus name.
But some economic tradeoffs are viable. For instance, 35,000 people will die every year as tradeoff for the convenience for driving.
The company spent a billion dollars over 4 years developing their new chips which, again, no professional has problems with.

So if you spent a billion dollars and had the livelihood of a few thousand people on your mind, would you protect that investment?

Let their "wisdom of the crowd" come up with a competitive chip that took a thousand highly trained engineers 4 years of 100% time and a billion dollars come up with their own version.
I work for a Japanese companies, and more than half of the developers here have non-IT backgrounds like marketing, sales, design etc... All of them started with scala from zero and 2~3 years later they start talking about monad, final tagless or writing concurrency helper libraries... Our brain is quite malleable so having non IT background doesn't prevent you to be a good developer.
Not for nothing...that paper was later debunked. Fauci was way out over his skis on that one:

https://www.the-scientist.com/news-opinion/report-of-asympto...

Current thinking is that there's statistical evidence for pre-symptomatic transmission about 2-3 days before symptoms appear:

https://www.sciencedirect.com/science/article/pii/S138665322...
For people who are of the opinion that expensive preparation for low probability events is untenable for elected governments because it would be seen as wasteful:

My home country (Switzerland) has a conscription army. ~160k people, each with either a pistol or an assault rifle at home, receiving regular training for a few weeks a year while the government compensates their employer for the loss in productivity. There are tanks, fighter jets and massive alpine fortifications. It's expensive. Most countries have an army and they are usually sized for an unlikely worst case scenario.

One would think maintaining a stockpile of PPE that would allow the authorities to recommend (and even provide) masks for the general population without risking a shortage in health care would be a relatively minor expense compared to that. And yet, all over the western world, PPE is in short supply, and that is without the general public wearing masks like they do in many asian countries.
I did a research on this topic.
Clearing your TODO list is a very efficient refactor.
It tends to reduce the ratio of future bugs.
I summarise it as: "If it was important enough to mark in a TODO, it is importnat enough to fix!"
https://www.cse.huji.ac.il/~feit/papers/Refactor19PROMISE.pd...
An Indie Alternative to Amazon?
Which side of this proxy is producing/consuming only FLV/Flash streams?
I would encourage you to post as a link as text submissions are usually slightly at an algorithmic disadvantage to get to the front page. You could either post the link while pasting the writing as a comment, or submit a link to a blog post.
Chris Date’s book “An Introduction to Database Systems” is a good place to start. It focuses on relational databases, which reflects the dominance of relational database systems for decades now.

Wikipedia has a decent article with history:

https://en.wikipedia.org/wiki/Database

Before relational database systems we had a lot of proprietary setups based on disk files. There were the variants of the hashing-based Pick database. There was CODASYL, and IBM’s IMS. Relational databases pretty much replaced all of those, though Pick-style systems are still running here and there.

https://en.wikipedia.org/wiki/Pick_operating_system
Do you need to teach 11 yr olds to test their programs after each change.. come on.
Signed transactions depend on the bank; it means the card only supports SEPA Debit, so the supermarket has to manually debit your account later, that's what you sign for.

Modern cards (anything that supports EC) can handle using only chip+pin or contactless.
it's a strong smell, but I guess you love the smells you grow with.

Even now sometimes I make Ghee at home with store bought organic butter, as it's difficult to find organic ghee. Unfortunately it doesn't smell the same.
I know someone who had a netted cat run that went out a window and was suspended from a verandah so the cats could get fresh air, move between buildings, and watch the world go by without killing birds or getting killed by cars.
Yeah it could be a very bad thing in some circumstances
I think Andrew Gelman raised some serious concerns with that study.

https://statmodeling.stat.columbia.edu/2020/04/19/fatal-flaw...
actually, Matlab is still the thing depending on the domain you are working with. I don't get the hate towards Matlab generally from CS people. Maybe because it's paid?
Signatures very much still exist in the EU; if the card you put into the reader only supports SEPA Debit and no immediate transfers, the shop has to do a manual SEPA Debit in the evening using your signature as authorization. A few banks refuse to upgrade to anything newer.
> Not in a fuel-cell running in reverse in a car, though, which is what the GP was referring to.

It would make more sense to have a separate electrolyzer. This way, you can have a tank of hydrogen sitting around that can refuel your car in minutes, not hours. The original scenario is actually a bad idea.

> More like $3-7 per kg today [1]

You're rounding up to $3-7. It specifically refers to $2.50-6.80. Those higher figures aren't really going to stand for long as cheap green hydrogen displaces expensive green hydrogen.

> producing green hydrogen would require an absolutely massive buildout of renewables,

But we are massively building out renewables. In fact, we're building too much. During peak production times, renewable energy is literally just grounded since there is no use for it all.

> Hydrogen energy storage will still have its niche applications on the margins,

Hydrogen can be stored in salt domes in extraordinary quantities.[1] A single cavern can store 150,000 MWh of energy, and one formation in Utah can contain 100 caverns. That's something like 200 million BEVs worth of energy storage! As a niche, it's dominant one, and frankly hydrogen is easily going to be bigger in absolute metrics on that fact alone.

> but it is unlikely to catch up to the cost and availability advantages of batteries for cars in places where the existing electric grid reaches.

This is not a race. Fuel cell technology will still advance regardless of what happens of battery powered cars. Furthermore, nothing is close to the internal combustion engine in terms of marketshare. If it were a race, ICEVs are way ahead and neither BEVs nor FCEVs are anywhere close to winning.

1. https://www.forbes.com/sites/mitsubishiheavyindustries/2020/...
The Marvel of Mozart’s Letters
Need a random algorithm to chose stories from 10 years ago on HN and see comments then and where it is now.
2bn phones cannot use Google and Apple contact-tracing tech
> don't discount yourself even if you're blind

One of the strongest programmers I've ever met was blind, and they were working on security software, not accessibility issues.
Try focussing on smaller chunks of 25 minutes session and take a break. There is a good Coursera course on "learning how to learn", which talks about how our brain learns and retains information. They also talk about different technique, which directly addresses mental laziness.
> solid state variable caps

Varicaps are only good for low power and are kind of nonlinear, but it's a voltage controlled capacitance.

I think for lower frequencies, a capacitor bank that's switched is the best bet.

In terms of inductors, AFAIK other than an inductor matrix it doesn't exist, but i think you can build a virtual inductor using a GIC.
Have the hospitals in New York collapsed? Has anyone been denied treatment because the hospital couldn't handle it?
Last-Writer-Wins is a conflict resolution strategy that can be used by any kind of data type that needs conflicts resolved, CRDTs included. Unfortunately it's not a very good one: even if you use vector clocks instead of wall clocks, it doesn't give you much stronger guarantees than determinism. That is, given two concurrent writes, the winner is essentially arbitrary. LWW is a merge strategy of last resort; if that's the only thing your CRDT system offers, I'm not sure it's really fair to call it a CRDT system.
The author of this post seems to dislike “blockchain” as a concept https://news.ycombinator.com/item?id=22703081
Of course not what?
It works really well. Austrias R0 dropped down to 0.7 after lockdown
Trains are diesel-electric. In practical terms, they're still internal combustion powered. Switching everything over to fuel cells is way simpler than setting up tens of thousands of miles of overhead power lines.

There's no path to powering a large ship with batteries. I'm not sure if you understand the physics behind it, but it pretty much has to be a hydrogen based fuel. Either liquid H2, or a derivative like methanol or ammonia.
If you want a recommendation, try out https://gitea.io/en-us/ - it has a mirror feature that can periodically pull down repos for you.

I've been using it to backup some of my repos on github/gitlab, without having to rely on any of my own custom scripts/crons.
I tried Bacopa for a short while. It really helped clear the mental fogginess but shot up my blood pressure. I have much better results with

1. Timely sleep

2. Exercise (cardio or weights)

Note: Exercise takes 2-3 days before it shows results but after that I threw away the Bacopa (high BP was scary).
> Essentially you are being conditioned by failure to quit prematurely.

Funny how my conclusions today are the opposite. I didn't quit early enough somehow. Well it's hard to tell, tbh, I've spent years learning hard stuff without any real benefit. So many a different course of action would make sense :)
Thats fine. Just curious why would you do that?
tldr: My one-man consultancy Bersin & Associates, which no one has ever heard of, will teach you how to make a fuckton of money out of this bullshit COVID-19 hysteria! Come and learn how to get rich off of COVID-19 dynamical processes. This post is definitely not spam too! Bersin is a leading this and that and definitely not emerging from the swamp to promote itself and hopefully profit off the current situation!
Another relevant link: https://www.medrxiv.org/content/10.1101/2020.04.14.20060160v...
This and that they literally started over night. Since the lockdown is new I find this reasonable.
50k-year-old three-ply cord fragment found at Neanderthal site
Fixing a deadlock in a Common Lisp library for Kafka
I can understand why it might seem that way but it is actually evolving very quickly. Probably faster than any other time in history. There are a few things driving this evolution but I think the most important one is a desire to make the web a competitive platform for most types of software. This means lower level APIs, deeper integration with OS, and yes a large focus on performance. 3D graphics, offline support, push notifications, file system access, animation, Bluetooth, and more are all recent areas of focus for browsers.

Web browsers really are becoming similar to operating systems in scope.
The original post is consistent with many different types of difficulties, including plenty that have nothing to do with ADHD.

If you told a new parent, an alcoholic, or someone living on a toxic waste dump that everyone who is frequently tired probably has CFS, that would be equally irresponsible.
What makes it a CRDT?
I live in British Columbia, Canada, which has, by most measures, had one of the best outcomes after South Korea in terms of 'flattening the curve'. We were unable to do mass testing on the scale of South Korea, but our testing per capita has been among the highest in the world. In addition, we started imposing social distancing measures sooner and more broadly than most.

However it's brought about, reducing transmission and flattening the curve is key. Every country had a variety of means to do so--South Korea's wasn't the only one. The regions that did so early and aggressively were successful at massively reducing the body count in comparison to countries like the U.S. that slow-rolled any and all measures for six weeks--thus, the U.S. will have, at best, 60k deaths instead of the 5k it would have had if it had enacted the measures it did eventually take just two weeks earlier.
It's funny how logic operates. Dead customers come a lot less in stores. Masking is a little discomfort for prolonged "benefits" (morality quotes). Business type persons should know better about long term investment..
I wonder if it was null terminated.
There's an easy experiment OP can do: see if nicotine patches help.

Nicotine is a safe stimulant that available over the counter; and works really well against ADHD and can help normal people too. Arguably much better than caffeine for the vast majority of people.

See https://www.gwern.net/Nicotine for details.

One thing to keep in mind: stay away from smoking. That's vile and addictive.
When I interviewed at Google a few years ago, my lunch buddy was a blind software engineer (sounded like L5). He navigated multiple floors, guided me to the cafeteria, checked his emails completely on his own. It was impressive to see him navigate hallways, going through doors and taking stairs up and down effortlessly. It can definitely be done by anyone with training and effort. Best of luck!
I remember Cab for the TT and Falcon. I had not realized it went on to become a Mac browser.

A shame, in a way, that the web is now so complex that alternative browsers are ever more marginalized.
Sorry for the late reply... Test pilots by definition are pilots with an engineering background. They're often seasoned aircraft mechanics and/or aerospace engineers.
Taking your example of your 3.5 year old's book reading attention and interest ...

What would you say if they were bored / distracted by everything you read to them, not just the difficult things?
There's also a Go implementation at https://github.com/berty/go-orbit-db
The article doesn’t say it explicitly, but it’s because the FM band is bounded by round numbers, 88 MHz and 108 MHz, as opposed to 87.9 and 107.9.
What does useful mean? I would argue most models are useless without a good understanding of the parameters going into that model. That is where the domainspecific knowledge comes in. Fitting some curve to data is useless unless you know what the parameters correspond to, and how they influence the parameters of the curve.
I wonder whether tenured professors can be laid off/furloughed?
Yes, and it has a honking big battery that you charge every day or so.

A card with a proposed 6 month battery life with receiver PLLs that are always spun up probably needs more battery than you can fit in a tiny thin card
This is incredible!
If you have a couple of minutes, would you mind sharing some of the Mac tool recommendations? I'm not blind, but as someone working on consumer apps, good examples really help!