skysight-inc/HackerNews huggingface dataset:
> it's an implementation detail of Intel CPUs

While that may be technically true, since Intel is the only CPU vendor implementing AVX-512, the reason that severe downclocking is warranted is rooted in physics, and may not be resolvable given this ISA design. General vector ISAs like RISC-V "V" may have less trouble, since it is clearer how to design a vector unit not to interfere with scalar access to memory/caches.

also, in the article they specifically mention adding shims for several AVX-512 ISAs:

> We also have rapidly progressing implementations of many other extensions including NEON, AVX2, SVML, and several AVX-512 extensions (AVX-512F, AVX-512BW, AVX-512VL, etc.).

if it's not obvious to you, this means that on machines with AVX-512 hardware will be invoking those instructions directly.
Geez, that's impressive. How do they make money? Ads? Selling data? Or do they have a paid offering?
>if only I knew the right people instead of having to get licenses in very sketchy ways.

You can buy it off the shelf. It's going to set you back $300+ dollars, but it's not hard. https://community.spiceworks.com/topic/2167558-explicit-inst...
It's not mandatory
Show HN: Get async video team updates daily. No more Zoom time suck
iTunes and Apple TV+?
There are already insurers which offer incentives to employees who exercise as tracked by their smartwatch. Vitality UK does this [1].

On the face of it, this doesn't seem terrible. It encourages people to stay active. So far it seems to be limited to an airmiles-type scheme where you can get bonuses like Amazon Prime for free if you meet certain fitness targets. With Vitality you would need 5.3 points a day (160/month) - you get 5 points for 10k steps so you actually have to exceed that every day.

The problem with these systems is that the incentives are poor relative to the amount of effort you need to put in. Amazon Prime is nice, but it's valuing you exercising daily at around £8/month. If you can afford Vitality in the UK, either you're already well-off or you work for a company which can afford it. Why not offer free fitness club membership if you go regularly?

The other issue is that tracking workouts sometimes fails, and you lose your bonus. That sucks and it's an easy way to lose people who can't be bothered to put in extra effort to make up it (for the sake of £8, for example).

Probably we'll go to the automotive model (black box trackers). Some insurers will offer lower premiums to people who can demonstrate they're healthy, others might refuse people who don't submit their data, and others will charge a bit extra, but not require it.

Be careful viewing this with a US lens. In Europe even in countries like Switzerland where you need private "public" health insurance there are strict minimum requirements. Insurers can't refuse you for pre-existing conditions, there are mandatory caps on premiums/deductibles and certain expensive treatments like cancer therapy must be included. Most people don't need health insurance because it's provided through the state.

[1] https://www.vitality.co.uk/rewards/partners/active-rewards/
Why would you be willing to bet if you just can google that the transmission BitTorrent client is in fact gatekeeper-signed?
> Magic Transit attracts customers’ IP traffic to our data centers by advertising their IP addresses from our edge via BGP. When traffic arrives, it’s filtered and sent along to customers’ data centers.

If they're passing traffic back and forth between the Internet and your datacenter through a direct connection you have to Cloudflare, then that doesn't seem to be very far away from CF being an ISP.

They already have the huge network, all you need is to set up a peering connection to them and have the CF enterprise plan and you can serve out traffic to the Internet via their network.
REMOTE(US) PAID INTERN:

At scite.ai we are hiring someone to help us get traction!
We are a company focused on making science more relabile through NLP, Biblometrics, more.

https://scite.ai/jobs/marketing-intern
I gotta say, this is amazing! I'm (very slowly) working on a textmode RPG. Something like this really helps me to come up with the world!
Honestly a fairly mediocre upgrade considering the pricing.

It's good that they've finally improved the webcam, but Apple clearly went out of their way to ensure people looking to get an Intel Mac because they need to dual boot weren't going to get anything too compelling.

Edit: Downvotes be damned, it is mediocre. Not bad, because it is a spec bump, but there are lots of things about the iMac's architecture that are beginning to show their age and are unchanged here, despite becoming bottlenecks. The cooling system is a big one, and the storage controller support another.
They've signalled pretty significantly that they won't follow the Chinese government's demands, including publicly joining the Hong Kong data pause. I don't mean to fully excuse the initial response (Zoom was always an American company with an American CEO!), but the Oracle partnership isn't the only thing that's changed.
I'm sitting here on a 2012 imac with a fusion drive. This drive never seemed to give much performance but it absolutely tanked once it converted to APFS. The computer became unusable to the point that I had to buy an external SSD and use that as my main disk. Now i'm very disappointed that it doesn't support Big Sur despite being only 8 years old. I will wait for the apple silicon because i don't anticipate that intel will be supported for too long. Apple will make "core features" of their OS depend on something that isn't shipping in intel silicon sooner than later.
>This isn't true unless you're talking the bling Era of the late 90s.

You lived in a different 90s than I did then.

>Now who deviates? Danny brown? He's like 40. RtJ? They're like 40 too. Kendrick tends to always be the modern exception to every hip hop criticism. So I consider him the exception that proves the rule.

Who deviates from what?

>And they're treated the same as Rhymesayers or DefJux rappers, Saul Williams or immortal tech were during the bling and Crunk eras. It's all "white" even if black, nerdy, back packing shit thats not considered part of the "culture". Thats the way most lyrical rappers are treated today. They're talked about like Atmosphere was in 2004.

Not my experience. During that time, and a little before it, you had Blackstar, Common, Dead Prez, and a bunch of other underground acts who were respected - to the point Jay Z name dropped Talib Kweli and Common in the early 2000s. Freddie Gibbs and Big Krit both operate primarily outside the scope of Trap, are very talented, and respected. I don't like J Cole, but he's another one who is liked and respected.
https://en.wikipedia.org/wiki/Planarity_testing
Here's a Numberphile video that talks about embedding graphs. I think this happens because the subset of graphs that are able to be embedded in a plane is actually fairly limited.

https://www.youtube.com/watch?v=xBkTIp6ajAg
And you can flip a single switch and keep running it? So?
I've used linux on my desktop for 20 years, I don't understand this "have to reboot to do something windows related", I guess I just use computers for very different things to you.
Protecting your own national security is immoral?!
Red Hat changes certification rules in response to the coronavirus pandemic
Does the imac pro get the better camera and other features listed?

I used laptops for years until and rsi issue made me have to avoid trackpads. I can say I’ve been extremely pleased with having a desktop imac. I use an ipad pro when I need something portable. I like just having a station I can get in front of that signifies work, and the imac pro fans basically never make noise.
I run multiple boxes and do all my work in Linux.

When I need Windows, I boot up that machine and RDP into it.

Over time, I need to do that less and less.

I’m still a gamer though, and I refuse to pay exorbitant console prices for games and online play in a walled garden, so I keep one Windows machine around just for that. But I only take it out of sleep when I need it.
I will take a guess that this is fake news.
Big companies can't avoid following being caught violating the law as easily as micro operations.
Gone Phishing
Clear the DNS cache on your windows machines and home router first perhaps. Block it, then reboot after clearing cache.

They may have even further consolidated these endpoints into something else. I went through this exercise last year after network debugging a family members game that was hanging, only to find Akamai was down in my area for the activity endpoint. It is a never-ending arms race of whack-a-mole.

Another thing you can do is clear cache on your windows machine and router, then reboot and watch DNS requests as you launch applications. If they merged activity into a common endpoint, you should still see the requests.
When we read "10th generation Intel Core" then we have to go and research whether than means real 10th generation (like i5/i7 MBA, some MBPs) or just another rebadged Skylake (6th gen) derivative.
For all the naive and idealistic dreams of the so-called “marketplace of ideas,” the first generation of large social networks has proven mostly unprepared and ill-equipped to deal with the resulting culture wars. Until they have some real substantial ideas and incentives to take on the costly task of mediating between strangers who disagree with each other, they’re better off sorting those people apart. The only types of people who enjoy being thrown into a gladiatorial online arena together with those they disagree with seem to be trolls, who benefit asymmetrically from the resultant violence.

This seems to contradict what has been said about Facebook exploiting users's attraction to divisiveness and polarization. See [1] and [2].

[1] https://news.ycombinator.com/item?id=23313007

[2] https://news.ycombinator.com/item?id=23314507
That's not how I interpreted it. Pretty sure they were referring to the "sophisticated" part as unlikely. Not saying I agree though. No clue how their algorithms work.
with democracy and ability to speak your mind without goverment's persecution everyone is playing on the same field.

i'd much rather take democratic china's disdain than dictator's china friendly overtures. you can work towards a long term solution of common understanding under democracy.
Thanks! That sounds cool, I'm glad my tool can help you with your own project!
Which it should. If Apple detects that there's a problem with a cert, they should revoke it.

Presumably, there's a known problem and something isn't working, even if it looks like it is.

Arguably, it'd be nice to have a facility (assuming it doesn't already exist) to override the revocation list, but designing that it isn't bypassed by social engineering is tough.
I don't think food is why people want schools to re-open. I'd guess the two reasons are not believing that kids are learning remotely and wanting to be able to go to work.
You are correct. But the same strategy can be used for optimization. Eg. get rid of the whole if block, and preferably dependencies to make it pure so that it can be further optimized by caching the output. Although cpu can be faster then cache so always measure.
It will almost certainly be a low end macbook. In fact, there's a non-pro 'macbook'[0] that already exists which would be perfect, it was discontinued a year ago, but used ultra-low power CPUs. In fact when they were talking about them (prior to release) they thought they would have ARM CPU's back then.

They are fanless and have a 5W thermal envelope, which fits in with the current A12X too.

The major criticisms of the design at the time was: Butterfly keyboard, the Single USB-C port and the speed of the device (Intel CORE-M is truly, truly painful). But for a $600-$700 machine with an ARM CPU? that's insanely competitive, and is in-line with the "basic" macbook branding.

https://en.wikipedia.org/wiki/MacBook_(2015%E2%80%932019)
> IP addresses are as easy to block as domain names, but the number of IP adresses available to them is much smaller than the number of possible domain names.

Is it? If they wanted to be toxic they could mix the telemetry IPs around with the windows update IPs inside a fairly significant block of IPv6 addresses. It would be hard to block the entire range because you'd hit the update servers.
Paul Graham's greatest hit: AirBnB
They use 10th gen Intel CPUs, and PCIe for SSDs. I'm definitely buying one, have waited for quite some time.
Intriguingly, it appears TikTok is doing just this to deal with the US government. Selling their US business but having a presence there, managed by a different company, has apparently been seen as a worthwhile option. But yeah, there's a lot of potential issues, especially if said divestments/spinoffs are really only such on paper. Too much coordination and the government still may be upset about it.
Finally they ditch spinning media on the base models.

Also notable, the rumored iPad-like style changes are conspicuously absent, these look pretty much identical to the older iMacs.

Otherwise this looks like a decent bump all around. Notably, the iMac Pro also got some love (though not too much it seems?)
> What’s the difference between CNI and peering?

I don't understand the answer here, can someone explain for us non-networking folk?
The TikTok Ban and the Openness Trap
What on Earth are these bezels in 2020????
In South Africa it has always been the default to deworm all children.
In schools, clinics.
https://www.sanews.gov.za/south-africa/government-launches-d...
> developers are investing in workflows

If this discussion were about anything other than text editors, I would take it much more seriously. But text editor popularity cycles every 5 years or so, and the main reason is simply that we get bored and want to try something new.

When we "invested" in VSCode over the past few years, we discarded all of our previous investments in Sublime workflows.

When we invested in Sublime back in the early-2010's, we discarded our previous investments in TextMate or Notepad++.

When we invested in TextMate or Notepad++ in the mid-2000's, we discarded our previous investments in UltaEdit or God knows what.

When we invested in UltraEdit or God known what back around the turn of the century, we discarded our previous investments in Vi or Emacs or Nano or whatever we were using from the shell in our 1990's computer science classes.

All of this has happened before, and all of this will happen again. We'll be bored with VSCode by mid-decade... and when we migrate to the next thing, it will take us a matter of days.
> If it breaks actual encryption (a la DeCSS) then yes, it oversteps.

Don't some jurisdictions have provisions that allow for technical workarounds in order to make backups?
Switching from Walmart to Target and back and forth all day long is much easier than switching between phones.

A phone is a natural monopoly.
You mean comparing data? For what purpose (to help assess solution) ... and why ML? Surely a rules engine is much more practical.
That’s also one of the puzzles in Simon Tatham's Portable Puzzle Collection (https://www.chiark.greenend.org.uk/~sgtatham/puzzles/)
The only way to be sure there is no data being collected is to stop using Windows. It's closed-source.
"Just", as if it were so easy. What kind of suggestion is this? None of us are trying to provide an operating system for a whole company. We need exactly one license.
For the simplest case you have a system of transitions

Start → Mid(1, ↑)
prob: 1, time: 1?
Mid(1,↑) → Start
prob: ⅜, time: 3
Mid(1,↑) → End
prob: ¼, time: 1
prob: ⅜, time: 3

(not 100% sure about those times, here they are in units of the timesteps that a person spends to go from one square to another, so the 3 is “go to the left square, go to the middle square but coming from the left, go from here up/down having the normal orientation again”).

There seem to be two ways to do this. First you could determine the average time to leave the park by pumping 1 person into the park every timestep until it reached a steady-state where one person was leaving the park, then just count how many people there are in the park. Assuming steady state, you do not need to use travel times to calculate that exactly 1.6 people occupy Start and 1.6 occupy Mid, with 0.6 making the journey back and 0.4 making the fast journey out and 0.6 making the slow journey out. These two slow journeys taking time 3 can be viewed as having (3–1)•0.6 occupation, or 1.2 people in each, so the total is 1.2 + 1.2 + 1.6 + 1.6 = 5.6 people in the park, so this should be the number of timesteps.

Or if you prefer a straight calculation it is S where

S = 1 + T
T = ⅜(3+S) + ¼(1) + ⅜(3)

S being the average time from Start → End and T bring the average time from Mid → End. This can be solved to similarly find S = 28/5 = 5.6 timesteps.

I think the former approach is going to be theoretically easier to understand when you are asking, “I want to convert End to Mid(n+1, ↑) and introduce a new End and also a node Mid(n, ↓), how does adding these three nodes change the system?”

In fact I think to solve it you will want to always calculate three different flows. I have only given you one of them, a steady state where one person arrives in Start and then they leave out of End. The other one is that they arrive in Mid(n–1, ↑) at a steady rate and then leave out of End at that same rate. And finally there is the flow where they arrive in Mid(n–1, ↓) at a steady rate and then leave at the same rate. [I think Mid(0, _) is just Start here.]

If I have those three populations/average travel times then I have a way to add those 3 nodes to the system at each stage and this gives me a recurrence which can calculate the thing exactly.

I would need to think a bit about how to program all of that.
How much RAM do you have? I recently upgraded my 2012 iMac from 8gb to 32gb and the performance is like night and day, I suspect because it has more memory to use for disk cache. It's a fully usable machine again.
... incredibly bad at basic timekeeping ...

A modern minivan is faster than a classic Porsche in virtually every metric. That doesn't lessen the appeal of the Porsche; speed isn't the point.
Yes. We live in a kind of reflexive terror of a regime that has been dead for the better part of a century and we must not look at certain parts of reality, lest they be true, because those people did something terrible related to that field of inquiry. There comes a time when crouching in silence waiting for a dogwhistle to be blown that nobody else can hear becomes paranoia.

It would be more reasonable and compassionate to identify genetic risk factors so that the people in question could make more informed choices in their lives, but instead we must keep them (and ourselves) ignorant lest, somewhere in the dark, a reel of Triumph of the Will begins spinning all on its own.
Gaming, programming games, some embedded development using proprietary windows only tool chains, windows only CAD software etc...

As you said people use computers for different things than you.
Similar game, but PGC: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/unta...
The certificate was revoked, not expired. And expired code signing certs don't prevent Mac apps from running, they just prevent new builds from being signed.

$ codesign --verify ~/Downloads/Eon_977.dmg

CSSMERR_TP_CERT_REVOKED
They already do that. If you block these domains at the DNS level it will just skip the DNS lookup and talk to them directly by IP.
Curious that how come this company posts new job opportunities always every month?
APFS is as far as I know designed for flash and performs really badly on spinning disk. They still provide HFS+ and ExFAT as the options if you format an external spinning disk.
Have a web portfolio of projects?

I worked on my own open source project-- without getting paid-- for months, just to have a complete project where I could show hiring engineers my code & a demo page about the project.

Two weeks after that, I was hired. I haven't lost the interest of 3rd party & in-house recruiters since then.

If you don't have a modern, up to date, open source project, as part of a web portfolio, you might consider putting 2-3 months into both a project (or set of projects) & a portfolio (or even 6 months like my crazy self did, while unemployed), then publish it.

You'll have a shiny new project, demonstrating modern skills, to show to a hiring manager/recruiter.
> If any commit can silently change the write-schema, it’s a lot harder to police.

In addition to schema validators, you really also need a data integrity async task that runs once a day to catch these kinds of issues. They're not that hard to fix if you catch them early, it's if you realize there's a data integrity issue years later and the original team isn't even there anymore that you get bigger problems. If you have a lot of data, a reasonable solution is just having it run on everything from the last 24 hours plus a random sampling of data older than that.

> Interested to know your experiences with schema changes though.

Haven't done a ton, so admittedly there could be complex cases I'm not seeing. I think it helps though, in cases like the example I gave of using it for form-like things, to set it up like:

QuizModel
QuizQuestionModel (FK to QuizModel)

QuizResponseModel (FKs to QuizModel, UserModel)
QuizQuestionAnswerModel (FKs to QuizResponseModel, QuizQuestionModel)

This way you have four models rather than an indefinite number. But because it's not just one big model with lists of JSON objects for questions and responses, this makes running migrations and data integrity checks much simpler to write and easier to reason about.

The idea being also that you have JSON schema validators for the different types of JSON blobs that get stored in QuizQuestionModel and QuizQuestionAnswerModel.
But would Apple and Google actually resist a TikTok ban?

It wouldn't be surprising to see them ban TikTok voluntarily and receive positive press coverage.
Case study on Curative – scaling to millions of Covid-19 tests
TikTok isn't social media

It is the new TV with infinite channels to switch by

Facebook will never be able to match it unless it reinvents itself.
User lock-in is how Microsoft has traditionally extinguished competition.

Microsoft Office is an early example. I know zero people that switched to it because they liked its functionality or user interface. They switched because nothing else could open Office documents correctly. Eventually, everyone I knew switched to it (and many happily switched away decades later, once “as-a-service” competition cropped up, solving the compatibility problem).