skysight-inc/HackerNews huggingface dataset:
It’s certainly no harder than any other way of describing complex solutions to quadratic equations. (But you probably want to start with quadratic equations that have scalar solutions.)

It’s quite straight-forward to show graphically what it means to square an origin-preserving similarity transformation of the plane: just apply it twice. So if your original complex number transformed an arbitrary chosen vector by scaling it some amount and rotating it some amount, just scale and rotate the result again. This is no mostly the same idea as repeated multiplication by scalars, as taught in primary school, but with planar rotations thrown in.

Adding complex numbers can be shown graphically by demonstrating what effect the sum has on a vector (since the geometric product distributes over addition), or where convenient what effect it has on a square grid.

We can easily graphically apply some quadratic equation to arbitrary complex numbers, and see what it does to them (again, where we draw the complex numbers using points o + zv for some arbitrarily chosen origin o and “unit vector” v).

Showing that when we take a quarter-turn in our plane I, and apply it twice, we get II = –1 is a relatively trivial observation. It relies on the observation that a half-turn rotation is equivalent to a reflection across the axis of rotation. So that gives us I as one of the roots to xx + 1 = 0.

The root of a quadratic equation is just the complex number which gets mapped to 0. So try applying your quadratic equation to different complex numbers and see where they go. There will always be two complex numbers mapping to zero (except in the case of a double root). Once we have some intuition for the problem we can try to develop some concrete algorithms or strategies for finding those roots efficiently. We can also try to make other kinds of plots to help us, e.g. using a tool like https://observablehq.com/d/3a81942cd20f81e4

I haven’t tried teaching quadratic equations to middle schoolers, but since the graphical version mostly entails drawing pictures, I would guess it to be rather easier than a purely algebraic version. Either way there are quite a lot of tricky concepts to explore and unpack, so the students are going to need months of sustained effort.
And the trend is not slowing. That said some people like low fat computing.

Another thing.. computing is over. At least in the previous era form. It's not bringing dreams anymore, will probably turn into an ubiquitous invisible form where intrinsic details such as resource usage won't matter.
By this logic, TicTac should be worth more than all car manufacturers combined, since there are more TicTacs in an 1$ pack than I will ever buy cars in my entire life. And I'm sure their margin is much higher, percentage-wise, at least compared to most car manufacturers.

Let's be real here: TikTok is a big social network, yes, but ARM owns most of the embedded market. Every smartphone your average consumer buys runs an ARM chip. And hardware is harder to replace than software.
If you support Apple and Google in their claims to 30% of the profit, then you support Comcast charging an additional fee for Netflix.

If you support Apple and Google having locked down authoritative control over the code run on their devices, then you support the Great Firewall.

The only choice of a free and open society, and one mindful of the great benefit of open source and open platforms, is to remove these companies from executive control of mobile platforms. They must become free and open, just like the web.

They're sucking all of the air out of the room. It kills freedom, diversity, and progress. It's rent-seeking.
I spent many years thinking they were invented as scary video game baddies...was pretty horrified when I found out they're actually real.
In many small towns Walmart is the only, or nearly the only store.
Slack is crossing the chasm. While early adopters shed it for Discord (and others), Slack is gaining mainstream users and mindshare.
Exactly. Apple's market power derives from the consumers that trust it to represent them in negotiations with publishers. The decision to "not give every app your credit card" is made by consumers when they purchase an iPhone.

Purchasing an iPhone is an act of collective bargaining by consumers against publishers that otherwise would hoover up their private data. "If you don't like it, you can always live like it's 2004, before smart phones" is not an answer iPhone customers accept.
A lot of their cash is overseas, and so to bring it back into the US to either issue a dividend (which is suboptimal from a tax perspective) or to buyback their own stock, they need to pay US corporate tax on the income (this is on top of the tax charged in the foreign countries.)
That must hurt just to talk about. You're lucky to be able to 'bring it out'. I can feel (sort of) what you feel, from experience.

I'm still stuck on 'someone has to pay' and 'it's not fair' although I know these are childish hopes. Pay how... They don't even remember. They don't give a shit. You can pity (they're sick, they did their best) but it gets worse. now you have no-one to blame... No enemy. Left with undirected, unfocused anger.

Oh and the anger on the other parent figures around 'I had no idea', 'I didn't know it was this bad'. WTF?

Forgiveness is hard. Grief is hard. Some of us have a very hard time letting go of those feelings. I can't do those yet. I can't let go of lots of things. I have an unforgiving memory for hurt and it prompts System 1 almost every day, to be on my guard, that something is fishy, I'm about to be hurt. False alarm 99% of the time. Can't work much on forgiveness when you're in survival mode...

I feel for you.

I hope we can both move on one day. Dog knows I'm trying. The anger is not good for your health, I'm learning now...

Be well.
Invest in Yourself Before Failure Occurs – Invincible Career
Lots of apps do that. Which permission set does getting the IMEI require on iOS?
Show HN: Rust.app – A macOS App for Rust Developers
No incentive to improve
I think a lot of this is governed by Conway's Adage: the software reflects the social systems that built it. If you look at the larger software ecosystem, it reflects the larger society that built it. The priorities and social customs of communities are leading to the "bloat." It's hard to say whether that is a growth on society's part or that software is simply still catching up with society.
I've given glucosamine to my dogs for years, and I can clearly notice a difference in their joint health and how stiff and sore they are after long runs ('long-run': 15-25 miles, measured on GPS collars). When I run out of glucosamine, or just drop off of giving it to them for whatever reason, I see them fall back pretty quickly. And when I restart them on it, I notice a response in a few days.

I also give give them fish oil pills, but I've never been able to notice a difference.
Because it is a public company. Public companies are under strict fiduciary duties. If it were private, it would just go to the owners and investors in large dividends. Dealing with so much money requires considerable deliberation.
How is a Mcdonalds restaurant (which McDonalds owns) in any way equivalent to my iPhone (which I supposedly own).
Even so, he's wrong according to every thing I've read on the subject.

The conventional wisdom seems to be that if you're a musician the primary way you're going to be making money is through touring and selling merch at shows. Not by cutting more tracks for spotify to make a buck off of.
What's the purpose of a signature even? The retailer is not allowed to (by terms of service) ask you for any ID to compare it against. This is just trappings for show.
>Tiktok grabs your IMEI number, amongst numerous other things and sends them back to the mother ship.

Maybe I misunderstand you but the quick search[0] I did on Google says Apple iOS API doesn't allow programmer to fetch IMEI number. Did TikTok find a way to circumvent this and get the IMEI?

[0] https://stackoverflow.com/questions/41278494/how-to-get-imei...

[1] https://stackoverflow.com/questions/19927160/finding-imei-nu...

[2] https://developer.apple.com/forums/thread/31122
You actually want Apple to allow you to advertise a competitor's phone on their phone.

What company would ever allow that ?
Among all the big tech, I think Apple is probably the most resilient. The sort of brand loyalty and image they have, any company would love to have it. It makes even the less polished products from their stable escape the sort of ire and financial impact that most other companies face.

Take the example of maps, it was clearly a way inferior product to the best in market Google Maps, still a lot of users(my physical and social media circle at least) persisted with it. This gives them immense power to grow out products that can become really strong platforms in the future.

Also, their ecosystem lock in is really strong. I think in due time it is really going to stifle competition. For example, it would be really interesting to see how the headphone industry adapts to this where incumbent brands like Bose, Sennheiser with their own brand power have seen their market share erode very fast. Apple has already sold 100+ million airpods.
As of March they had 100B USD. Is there a link for 200B?

Ah, finance sites claim 100B in cash. Rest is not cash, nor on hand, but 100B in securities awaiting maturation.
They don't let you modify the software on the device.
Yeah call my a cynic, but if a 17 year old capable of this actually got caught, It doesn’t seem that hard to do in the first place.

I wonder if someone gave them the exploit
Covid-19 Hospital Data System That Bypasses CDC Plagued by Delays, Inaccuracies
The reason there are any royalties to distribute at all is that Spotify has managed to create a distribution service that ppl are willing to pay for.
You can get free distribution for your music easily. Just put it on any torrent site...
I think people are overlooking a worse outcome. Chinese companies have already bought the Asian subsidiary of ARM, if China bought ARM who knows how they would retaliate with it given the current attacks on Huawei. They might use it as leverage.

realistically we need an open unowned architecture like RISC-V, because whoever buys ARM will cause concern given how hyperconpetitive mobile is, the incentive to abuse the ownership is high.

We really want to avoid another Oracle/Java scenario as well.
Their reward is being the most valuable company in both the world, and perhaps much of human history. Their reward for restrictive anti-competitive behaviors is antitrust investigations.
> If you manage to maintain close relationship way into retirement, yiu are very lucky. Of course you will be in great shape.

If you think both relationships and physical health are factors of luck, there's no reason to believe that those who have good luck in relationships would also have good health.

A link in this study does, in fact, suggest they aren't independent variables.
This is controversial, but on topic: name the crime (e.g. my partner cheated on me, etc).

Don't be ashamed. You're the victim, and you're supported, mate.
Something like 30-40 years for the first trillion, and maybe only a few more years for the next trillion.
Having a large cash hoard gives them a shield against external financial manipulation from Wall St.
> restaurants and other retailers don't just bite the bullet and buy the $100 terminals

Because it's never $100 cash.

It's $100, and a subscription fee for the service, and a percentage of the transaction. Indefinitely.

If you already have a really good deal with your provider, this may be a more significant hit to profit than fraud--especially for a restaurant (where fraud is less because you can't reconvert the food into cash unlike merchandise).

I hate the "SaaS" subscription model, but it's infected everything.
I think you're off base. It's simply not runway at this point. That like 200 years of runway at their peak losses.

It's pretty simple why they have such a big cash pile. They literally don't have a better place to put it.
Herb Sutter had a wonderful talk on constant factor plague. As much as I like clojure and similar convenience and algorithmic beauty.. I can appreciate the devil-is-in-the-details much more since this video (forgot the title sorry)
Or if Facebook had one, and Amazon had one?

And when developers are forced to support all 5 big ones?

And when any benefit of a reduction in fees is completely lost because of the requirement to support all 5 stores?

If the remedy for Apple picking winners is more stores, then it just means all of the big players will get to pick winners.

There is absolutely nothing whatsoever that is pro consumer about having Google, Amazon, and Facebook be able to run iOS app stores.

It will just raise costs for developers and harm consumers that way.

It will lead to exclusives just as we have in the online streaming world, so consumers are forced to deal with all of them.
Agreed, but the financial system we have is set up to handle one of those scenarios and not the other. Bitcoin could be as good or better at this use-case, but for now that is not the case.
> First, we're going to have to fully explore Amdahl's law.

Funny! Depressing :(
There is a reason you don't see this type of attack more often, and it's not because it's difficult to do.

It's because social engineering attacks are noisy as heck. Within 30 minutes of them posting these tweets, you can bet the FBI was already on the line with Twitter's security team.

The fact that they chose to do this attack at all demonstrates how amateur they were.
Maybe ARM should copy the business model of more valuable companies like TikTok by harvesting and selling it's users data. Surely the data flowing through a SOC is worth something.
I was suffering from severe knee pain due to cartilage wear and started taking liquid Glucosamine supplement as per doctor advice since 4 years. Now I'm perfectly OK and run daily.
How is Apple a “monopoly” with less than 15%?

Most people are “forced” to get internet through their cable company because there often isn’t a choice. How many people have to buy a phone that on average is twice as expensive as the alternative and then complain about it?
For now only the route that uses domain.com.
Cool story bro.

Meanwhile in the real world we are not all born psychopaths with the privilege of only working with people like us who like us. In addition we live in the same world where “only following orders” is still a thing: so one person’s public suggestion that you are not a nice person is someone else’s call to action to punish you for being you. Accusations that a woman used sexual favours to get better reviews for a computer game led to complete strangers turning up on her doorstep threatening violence.

Words aren’t just words. What people are scared of isn’t just the words but the retribution they have learned follows those words as surely as night follows day.
It was inconceivable even back then, and probably had a lot to do with the Beatles burning out and parting ways after a few years in the U.S.
>Apple choose not to spend their time, money, and energy on supporting third-party app stores.

Apple doesn't need to support third party app stores. Apple actively hinders them.
Id be curious what it would look like if you tested your blood now, stopped taking them all, and radically modified your died, what kind of results you would get in a couple weeks.

Daily intake of, tomato juice, kefir, sardines, salmon, spinach, sunflower seeds, pumpkin seeds, pistachio, eggs. You could probably get a whole days worth of food into a snack, a salad, and a soup.
I totally sympathize with the frustration, and experience that as a user too. But I would like to suggest that digital product design is usually a moving target, based on constantly changing consumer engagement, competition and other market conditions, so they have to follow a dynamic, adaptive strategy. Now, could they commit on a feature despite these, yes of course, but that too many of such commitments will have a cost to us users in terms of lack of new innovation.

I imagine this picture; a “tech-smith” is building an elaborate, complicated machinery and we as the users are watching it, clapping to it, interacting with it. Some are asking “this machine should have bells”, some go “it should have whistles”, and the techsmith wants to add and remove those based on those parameters. In reality, no one knows what the final machine should look like and no one knows how exactly they will use it. So there is a sweet spot in which unexpected changes are budgeted for so that it can change to conform better to what we want and what we find useful as we gain experience with the machine. Which means sometimes the techsmith will need to go “you know what, I’m going to take this bell away because not many are using it and it is causing me problems, and instead I’ll use the materials and energy to add these extra wheels” even after having invested a lot to that bell initially (which is laudible, because they are also fighting against their own sunken cost fallacy).

This should be familiar to software engineers; “why the requirements were not perfect before I started writing the software” doesn’t work well in real life. In reality as the engineer and the user gain more experience with the system that is gradually emerging, they acquire new participatory knowledge of that system and that causes a change in requirements, in a dynamical, reciprocal fashion. (Which is one of the reasons why waterfall processes are not as popular today for most products). I think the same goes at a higher scale, if not complexity, for these comnplicated machinery big tech builds that is used by billions of people.
Those were high-profile examples. But most apps implement some sort of telemetry even just basic product analytics e.g. MixPanel or Google Analytics. Both of which collect a wealth of user data.

So if I were you I would not use any app or search engine. Just to be on the safe side.
> Slowly developing, stable respiratory acidosis (as in COPD [chronic obstructive pulmonary disease]) may be well tolerated, but patients may have memory loss, sleep disturbances, excessive daytime sleepiness, and personality changes. Signs include gait disturbance, tremor, blunted deep tendon reflexes, myoclonic jerks, asterixis, and papilledema. [0]

So, quite possibly nothing, or nothing you'd realize. Bodies are adept at compensating. But there are potential concerns, and also, a chronic (and compensated for) issue can acutely deteriorate.

I am not a doctor, though.

[0] https://www.merckmanuals.com/professional/endocrine-and-meta...
Also in this era the tech industry was highly competitive and cutthroat and cash reserves were a war chest against attacks and for rapid expansion (acquisitions). MS and others had similar cash reserves as a strategic asset.
The FBI literally performs the background checks for security clearances. Like any other organization it has less security focused divisions, but insofar as any organization is security focused, the FBI is.
Yes they don't want to build and support the functionality for third-party stores.

I said you can do whatever you want.

I didn't say you can require other people to do what you want, like build software features for you.
It would be equivalent if Tiktok is banned in the US and only in the US. But this forced sale of Tiktok would definitely include TikTok's non US business as well. The intention from the U.S. government is to not allow Chinese nationals to own any impactful business or technology not only in the US but internationally. Huawei's case was 5G, tiktok and bytedance is social media.

Bytedance is incorporated in the Cayman islands. Yes it is founded by a Chinese national, but it also have non-Chinese people on its board and in the management. And Chinese people do not all agree with the government, or ccp's ideology push.

Bytedance has a Hongkong subsidiary to manage mainland China business, one of them is douyin. And U.S. subsidiary to manage Tiktok. Douyin and TikTok are separate products, no data is shared between them. The U.S. subsidiary is managed by Americans and employs American. Content regulation is managed by Americans, Data is stored in the U.S. Tiktok is planning for outside review of the data security and algorithms for recommendation system. There is no way Chinese government can force their censorship on to tiktok. Why would TikTok employees agree to Chinese government's demands? They are Americans living in America. How will Chinese government enforces their demands? The only thing they could do is force shutting down Douyin in China or arrest the Bytedance's management in they reside on Chinese soil. But if that happens it would be another news story. There is no legal means for which Chinese government can exert control over Tiktok. Therefore I don't think Tiktok being forced to censor speech or hand data to Chinese government is really realistic.

Source: https://www.bytedance.com/en/ see corporate structure
The flawless execution of these instructions has been sponsored by RAID bug spray.
> > still more than enough over all
The arbitary nature of contracts also keeps piracy relevant for people who get exasperated at the "now you hear it, now you don't" problem with playlists.

If you pirate something and make a playlist, it won't be full of holes after the next round of contract negotiations. With Spotify -it very well might.
What if I choose not to be forced to deal with a multitude of different stores?

It seems like you want to remove that choice.
If you wanted phone service, you had to buy it from AT&T - because of a government granted monopoly.
It's rolled out, they're typically incredibly invasive fingerprinting scripts that also port scan you/your LAN.

Amex's 3D implementation seems to consistently ask for a 6-character passcode if it doesn't pass through.
Agreed, and that’s the issue I have with the cash pile. They should be trying and failing quickly at a number of things, big things, including the small items you raised. Take a guy like Elon, give him a 500bn in cash and see what happens. The world would change in a big way.

Capital should be either sunk hugely into the R&D to change the world or should be returned to shareholders to better allocate it.

That said, These guys aren’t playing the game 1 qtr at a time. Not even a year at a time. They play the 100+ year game and likely they don’t see this money as “big”.
William English, Helped Build the Computer Mouse, Has Died
Does anyone remember .qwk and QWK readers from the BBS days?

I want that. Let me download the messages, sift through them how I want to and reply.

Oops - I forgot. Communication isn't the goal of forums these days; monetization is :(
I have to disagree with the central thesis. Disclosure, I’m building snazzy.ai, a company that utilizes GPT-3.

Counter to the article, GPT-3 isn’t the moat, the moat is the company you build around it. It’s your positioning, your team, your UI, etc.

GPT-3 is just another tool and if you treat it as a building block, then it can be part of what helps build a great company.