skysight-inc/HackerNews huggingface dataset:
We were in a triple sourced data center. Fed by three different substations. Everything worked like a charm. Until Sandy hit. It did not affect us at all. But it affected the power company. And everything still worked fine, until one of the transfer switches transferred into UPS position and stopped working in that position.
I've been mostly the same in my efforts to learn Mandarin. Not only am I much more introverted speaking Chinese, but I'm also easily frustrated trying to get my point across. The Chinese they teach you in school is the extremely standardized version of the language (maybe similar to the concept of 'global English'?) which maps very poorly to what you hear anywhere that isn't CCTV news programs.

The biggest challenge, though, has been native Chinese speakers just shaking their heads when you speak to them and pretending not to understand. It's clear no effort is being made. I've seen fellow Americans do this too, and it's extremely frustrating having been on the other side of that situation. Thankfully I sometimes get a morale boost from restaurant/shop workers who complement me, even though it's clear I'm speaking at a kindergarten level.
Being armed to the teeth / mutually assured destruction is the stable nash equilibrium state.

It's not globally optimal (as banning weapons would be), but it is the state where parties are not incentivized to cheat/lie.
Who is telling the truth?

I’ve seen multiple youtube MDs bring up studies that claim the infections are typically milder than previous covid strains.

These publications are on public news outlets but I do not know how they are vetted for credibility nor do I know the credibility of the research they’re citing. In more than one recent example the CDC was described by Zdogg MD and Vinay Prasad, who are definitely competent and credible presenters of medical information, to be utilizing really crappy data and sometimes even flat out saying things that are wrong.

I really hate this information war environment surrounding covid. You actually cannot know the truth it seems.
Yes, hotels in more places would be nice. But I think most people are largely out of control of whether they need to keep going or not when they get fatigued. It's certainly hard to gauge, since it's such a sliding scale. Aviation pilots certainly don't have a choice, once they're in the air, and I don't think that's so different from most highway drivers.
Indeed, that's what I meant. You can fork WebKit, but you don't start out with a working browser, like you would when forking Firefox or Chromium.
So dumb question from someone who hasn't maintained large public infrastructure:

Isn't the whole point of availability zones is that you deploy to more than one and support failing over if one fails?

IE why are we (consumers) hearing about this or being obviously impacted (eg Epic Games Store is very broken right now)? Is my assessment wrong, or are all these apps that are failing built wrong? Or something in between?
That doesn't appear to have happened though, I haven't seen issues outside az4
I never understood the appeal of BSD jails over Solaris zones which seem to be more hardened and seem to vitualize more of the OS.
> What does "super attractive" look like?

Basically be a model

> Women can have just as much of a hard time as men, especially for certain ethnicities.

Can't find the study, but black women are actually having a tougher time than all others women to get matches on dating apps. But this is still nothing compared to the attention guys get
No offense, but bullshit. I've personally never once in my life used a single dating app and have met plenty of dates and love interests the old fashioned way, by interacting with them in the real world after random encounters (bars, events etc) or through circles of friends. Most of the people I know met their own love interests in the same way. I don't live in some backward country with little app use either. What a sad existence it would be to have something as fundamental as one's romantic life depend on a shitty, arbitrary and parasitic data collecting app that feels it has the right to treat its users like cash cattle with no recourse for any unfair ToS decision it makes. Grotesque.
Or maybe his grandson Astro! That'd have been a fun interview.
> use Telegram

also from CSIS briefing?
He became a believer because he's now part of the funnel, and it's in his interest to continue promoting it to new users. Full stop.
Does it come with its own locally-hosted console or does it still rely on the main AWS control plane? If the latter then it could be affected too.
It's also the day to day of living in society, except social norms are more democratically established.
4% Retirement Rule Now 4.7%
18:16 is 1.125:1, but 4:3 is 1.33:1
This region in general is a clusterfuck. If companies by now do not have a disaster recovery and resiliency strategy in place, you are just shooting yourself in the foot.
They are viable, but growth is significantly hindered by GOOGLE. When you install a search engine extension, that is explicitly labeled as such, Google will still "warn" users that an extention has "hijacked" their default search provider, and recommend to revert back. This is obviously anti-conpetitive but governments are too slow to react. Furthermore, extensions are at the mercy of extension stores' obscure policies, and are often dropped on a whim by "reviewers".

With that said, tens of millions of users is hardly "unviable". There are several profitable search engines.
"Notice that there is a huge amount of handwaving in system engineering. I don't think this is good, but I don't think it's avoidable either."

In my experience, you can be specific, but then you get the problem that people think that if they just 'what if' a narrow solution to the particular problem you're presenting they've invalidated the example, when the point was 1. that this is a representative problem, not this specific problem and 2. in real life you don't get a big arrow pointing at the exact problem 3. in real life you don't have one of these problems, your entire system is made out of these problems, because you can't help but have them, and 4. availability bias: the fact that I'm pointing an arrow at this problem for demonstration purposes makes it very easy to see, but in real life, you wouldn't have a guarantee that the problem you see is the most important one.

There's a certain mindset that can only be acquired through experience. Then you can talk systems engineering to other systems engineers and it makes sense. But prior to that it just sounds like people making excuses or telling silly stories or something.

"(of course fail-safes can fail, anything can fail)"

Another way to think of it is the correlation between failure. In principle, you want all your failures to be uncorrelated, so you can do analysis assuming they're all independent events, which means you can use high school statistics on them. Unfortunately, in real life there's a long tail (but a completely real tail) of correlation you can't get rid of. If nothing else, things are physically correlated by virtue of existing in the same physical location... if a server catches fire, you're going to experience all sorts of highly correlated failures in that location. And "just don't let things catch fire" isn't terribly practical, unfortunately.

Which reiterates the theme that in real life, you generally have very incomplete data to be operating on. I don't have a machine that I can take into my data center and point at my servers and get a "fire will start in this server in 89 hours" readout. I don't get a heads up that the world's largest DDOS is about to be fired at my system in ten minutes. I don't get a heads up that a catastrophic security vulnerability is about to come out in the largest logging library for the largest language and I'm going to have a never-before-seen random rolling restart on half the services in my company with who knows what consequences. All the little sample problems I can give in order to demonstrate systems engineering problems imply a degree of visibility you don't get in real life.
Seems like multi-cloud solution might be the way to go.
I once had to argue that we still do need backup even though S3 has redundancy. They laughed when I mentioned a possible lock-up from AWS (even due to a mistake or whatever). I asked what if we delete data from app by mistake? They told me we need to be careful not to do that. I guess I am getting more and more tired of arrogant 25 years old programmers with 1-2 years in industry and no experience.
Yes, I was thinking of speech synthesizers when I wrote my comment :) Closing the gap is devillish and requires increasingly complex grammatical analysis and more and more rules. One of the big barriers for early speech synthesizers was enough RAM/ROM to cram all the text-to-phonetic transformation rules.

I believe that modern approaches mostly use deep learning. And definitely still aren't perfect. I don't use speech synthesizers regularly personally as a tool, but synthesized speech is common enough that I do hear obvious stress errors in synthesized speech every day. Probably because English orthography is most opaque about stress, which basically doesn't exist as far as the writing system is concerned.
This is called "pseudonymous", not "anonymous".
Why does mixergy have a photo of Gary Vaynerchuk on the home page.
Of course that depends on what services you use and yes, even then there is some remaining correlation just because it is the same host.

> are not truly independent of each other

Indeed. They are even on the same planet!

> please stop blaming the victim

Excuse me?
Thanks for the feedback just added
Some history - It was the first time in the world (as far I know) that a communist government was democratically elected and came to power without a violent revolution. (Funnily, other communist parties around the world criticised the indian communists for this!). This really rattled the United States of America, and they applied tremendous pressure on the indian government to deal with the "communist threat" in India. Nehru was reluctant, but knew that India couldn't ignore the demands of a world power it needed help from, as India was still struggling to sustain itself as an independent nation. He invoked a federal power that allowed the Government of India to dismiss any local government in a state and take direct control of the region under the pretext of the deteriorating law and order situation in the state (huge anti-communist protests had started in the state by religious organisations, the opposition political party and some claim even the CIA - https://indiatogether.org/kerala50-government).

To Nehru's credit though, he held steadfast to Gandhian ideology and refused to give in to US demands to ban the communist parties in India as long as they swore to abide by the indian constitution and didn't advocate violent politics.
Needs [2016] in title. The site seems to be completely dead now.
I think it’s a strong conjecture that quantum effects at the single neuron level in the brain are significant. Given how evolution has had billions of years to operate and “train” itself, I don’t think it would be surprising to discover quantum-mechanical processes were deeply intertwined with intelligence.

I think there is some definite upside to knowing the ultimate complexity of a single neuron.

Is it a detour? I don’t think we can say for sure either way until the question of how a single neuron works is settled.
(FreeBSD) jails are amazing. I just wish there were easier ways to use them more "cattle"-like, so I can augment or replace Docker/Podman. At the moment tooling and many of the real-world setups remind me a lot of "pet" LXC containers or even VMs in the Linux world.

The tooling is slowly moving in a direction I like, though :)
The Dreamcast Legacy
It really spends on how reliable you need to be. Don’t forget you get downtime from both AWS and your own issues so even 4 9’s is off the table with pure AWS. If you need to be more reliable than AWS you need to run a hybrid inside and outside of AWS which means most of the advantages of running on AWS goes away.
In my experience, many things are documented, but the documentation is unhelpful, redundant or outdated. Sometimes there are several documents on the same thing, some are outdated in different ways, or the author has given up on it.

In code itself, often you see comments that say one thing, the function name saying another, and the relationship doing something different.

It's probably good company culture for seniors to just accept that the new guy will be a productivity sink for a while. Get them up to par quickly so they'll be productive earlier. Knowledge is like compound interest, it's easier to start them out with a lot and then have them figure it out rather than have them figure it out from the start and ask if stuck.
> Although complex numbers are essential in mathematics, they are not needed to describe physical experiments, as those are expressed in terms of probabilities, hence real numbers. Physics, however, aims to explain, rather than describe, experiments through theories. Although most theories of physics are based on real numbers, quantum theory was the first to be formulated in terms of operators acting on complex Hilbert spaces. This has puzzled countless physicists, including the fathers of the theory, for whom a real version of quantum theory, in terms of real operators, seemed much more natural.

I wonder if the use of complex numbers in QM theories to describe a real world that only needed real numbers inspired Asimov's 1942 short story "The Imaginary"?

In that story psychology has been developed into a hard science. In some third rate college on some backwater planet some first year psychology students were doing a lab where they ran some animals through sequences of stimuli and observing the reactions and verifying they matched what the math said should happen.

One of the animals fell asleep, which was not what was supposed to happen. It was reproducible and very specific. You run through that exact sequence of stimuli, and as soon as you hit the last one it falls asleep. Vary the order and it doesn't sleep. Vary the timing by even a tiny amount, no sleep.

Word of this got back to the galactic federation's leading psychologist. Think the Einstein of psychology. He utterly could not explain it. Eventually though he came up with equations that worked, but they involved imaginary numbers. When applying these equations to the specific stimulus sequence all the imaginary quantities squared or cancelled out and you ended up with a real result, which was that the animal would sleep.

This was controversial and caused quite an uproar in psychological circles, and while the leading psychologist was away dealing with that a couple of his students found a case where the imaginary numbers did not get squared or cancelled out. The predicted real world reaction to the stimulus sequence involved an imaginary number, and they have no idea what the heck that even means.

They try it, and what it means turns out to be that some kind of slowly expanding radiation field gets created around the animal that kills other life that spends too long in the field.

The top psychologist is called back and is able to calculate further stimuli that will stop the expansion. That works and catastrophe is averted.

Asimov in 1942 would certainly have been aware of QM and the whole "complex number theory to make real number predictions" aspect of it.
I want to ask you a framing question: have I violated anyone's rights if I tell you that I had Cheerios for breakfast this morning?
It's still mostly controlled by a single company. The fact that it's open source makes the situation a tad better, but it's still a lot of power and network effect centered on a single entity.
You have huge misunderstanding about the relationship with the parent company. You think you are a valued customer, however them think you are a burden that does not help their bottom line. Get it?

If I were you, I would ask myself this question first: What is the motivation to migrate to their platform? Is it from your team, or is it from some requirement of the parent company? If it is the former, I would retrofit my app to fit their platform, even if it would take 5X or 10X the effort. If it is the latter, just sit back and let them drive the process.
Yes, absolutely. But its even worse, its a crowdsourced eugenics program that the crowd doesn't know they are contributing to and I believe they would not consent to if they knew or had the choice (aside from not using the app at all).

Basically your selection (match, don't match) isn't just a personal choice. It alters the other person's desirability based on your current desirability. Its a weighted choice that affects how they are bracketed to everyone else, people in the same brackets match each other.

Now of course, this is similar to the outcome in real life. But there is a level of consent to these personal choices, and there are way more inputs before this outcome occurs.

Knowing that some derivative of this is employed allows you to game it, which makes it much less objectionable to me, but I greatly disagree with the idea that other people aren't aware. At this point my biggest issue with dating apps is that nobody moderately attractive has their notifications on, so it's easy to forget to check the app for a conversation (after you matched) but at the same time its still uncouth to ask for a phone number or other way of messaging right away, so a simple conversation could take weeks or months or more likely never occur. (Many people have their instagrams or snapchats written on their profile, but its an additional greater gamble to get a response through those as they are inferior forms of inboxes too).

I know its common for married people to think "omg dating is so nightmarish now, this justifies staying with my spouse through anything because I wouldn't know what to do", its not really that different, think of a dating app like a someone at the pier with 5 fishing rods out in the water. 2 of them are dating apps, 3 of them are other things. Its just an additional option to meet people outside of your network.
Then at least cancel his subscription.

I can imagine a scenario where you need to login to cancel your subscription, but can't login because your banned. A while back Tinder was trying to bypass the Google Play subscription system so this is very possible.
I think it's predicated on a misunderstanding of what "fail-safe" actually means.

For example, in railway signaling, drivers are trained to interpret a signal with no light as the most restrictive aspect (e.g. "danger"). That way, any failure of a bulb in a colored light signal, or a failure of the signal as a whole, results in a safe outcome (albeit that the train might be delayed while the driver calls up the signaler).

Or, in another example from the railways, the air brake system on a train is configured such that a loss of air pressure causes emergency brake activation.

Fail-safe doesn't mean "able to continue operation in the presence of failures"; it means "systematically safe in the presence of failure".

Systems which require "liveness" (e.g. fly-by-wire for a relaxed stability aircraft) need different safety mechanisms because failure of the control law is never safe.
Usually when someone claims T3+ they mean they have UPS clusters in 3+1 (or such) configuration and two different such UPS clusters power two power-strips in a rack. Then, would also have incoming grid power supply from two different HV sub-stations with non-intersecting cable paths. They would also have diesel power generators in 3+1 or 5+2 configurations with automatic startup time in seconds. The UPS's power storage (chemical or potential energy based devices) can hold enough energy to handle full load for several minutes. If these are design and maintained correctly, even while concurrent scheduled maintenance is ongoing, an unexpected component failure should not cause catastrophic outage.
At each layer (grid incomers, generator incomers, UPS power incomers) there are switches to switch over whenever there's a need (maintenance or failure).

If they claim tier4, then they basically have everything in n+n configuration.
Running a multi-tenant datacenter or hyper scale cloud datacenter is a different business than running a datacenter. The myth of the cost of running facilities on HN is insane - it’s like saying you can’t drive a car unless you hire a formula 1 driver.

I worked through the ranks at a large enterprise that ran a “big” datacenter for a decade. The facilities team was about 6 people, average salary around $90k. I can only remember one power interruption affecting more than a rack, caused by a failure during a maintenance event that requires a shutdown for safety reasons. The rest is like any other industrial facility - you have service contracts for the equipment, etc and maintain things.

There’s a cost/capability curve that you need to plan around for these matters. You need to make business and engineering decisions based on your actual circumstances. If the answer is automatically “AWS <whatever>“, you’re making a decision to burn dollars for convenience.
What about a UPS/battery thingy? That's saved me a few times, though it normally just gives enough time for a short outage. Is it uncommon in cloud infra?
this is also what epiphany (GNOME Web) uses for rendering.
Stat That.
Of course not everyone agrees. I see someone on bicycle almost every day, but those are either very dedicated cyclists or those who have no other means to move faster than walking but still need to.

Heated bridges? I've never seen one and roads are not even fully desnowed in my town.
> Yes but if you have reliable power from two different sources then the biggest risk (I'd imagine) is the failover circuitry! Something that should be tested tbh.

That's ATS. It is not really advisable to test their under load performance because the failure of an ATS would be catastrophic. ATS typically would be tested at the installation and after that their parameters would be monitored.

Replacing a functional in line ATS would be a 9-12 months long project.

> Also, there are banks of batteries and generators in between the power company cables and the kit: did they not kick-in?

At high energy you are pretty much always going to use an ATS.
It is responsive as long as you use auto layout. Every other code generation plugin in Figma community is either paid or doesn't work anymore. I've tried Pygma and I just couldn't get it to work, it crashes when I'm trying to use it.

Also, in contrast to Pygma, you don't need an account to generate code :)
Because increasing the display's frame rate makes zero difference on a S&H display for movie playback unless one of the combinations has jank: If you go from viewing 24 fps content on a 60 fps display it's janky, going to a 120 fps or 144 fps display fixes that jank because frames divide evenly. If you watch 30 fps content, it looks almost exactly the same on a 60 fps and a 120 fps display (but going to 144 fps would introduce jank).
While there may be more machines provisioned, many orgs run active setups for failover so they aren’t as affected. In terms of data transfer, it should already be there. Where would it come from? Certainly not the dead AZ.
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There is a series of four fantastic videos about a successor to Thompson's tidal analyzer - the Michaelson's Harmonic Analyzer; here is the first video:
https://www.youtube.com/watch?v=NAsM30MAHLg