skysight-inc/HackerNews huggingface dataset:
My Math Teacher's Friend's Hurricane Simulation Story
I had a Math Class today for Calculus I, and my teacher was mentioning ways to use Newton's Method of Approximation to find close-enough zeros on a graph. Interesting stuff.

He then went on a tangent to the point that he began talking about his friend who had a basic hurricane simulation for a paritial PhD study. This is where things got interesting. His friend wrote the simulator said that everything had to stay in "good memory". My teacher asked him if he meant RAM or Hard Drives, which he denied and said that the "good memory" had something to do with on the actual CPU itself.

The second weird thing about this story is that this person, apparently for "performance reasons", wrote his hurricane simulator in FORTRAN. It still took days to complete each simulation, but why FORTRAN? Is it really that much better than C?
Small company or big company?
PCI doesn't currently consider telephones to be public networks. That's why they are okay with fax machines sending CC details, provided they are in a secure area and a few other non tech requirements. Not sure I agree with the practice, but it is what it is.
There are, for the self-driving car program in question which developed over that 7 years of progres? Can you name a similar incident in the past year of a Waymo car boxing in another car on a highway and sending people to the hospital?
Late 20s woman, started playing violin when I was 4, genetically predisposed. I had that SAME moment of shock and panic when I practiced with my sister before we played for my cousin's wedding a year ago. It was wild, the best way I can describe it is my ear has flattened out to baroque tuning down from modern 440 turning. I don't like it! I'm losing my best party trick to age but oh well, I don't think anybody's really gonna fault me if I'm off by a half step when I figure out what note a door is squeaking in lol
At first blush, my initial thought is "I like it". To be really useful though, I kinda feel like you'd need a lot more problems. Two other features that I think would make this awesome would be:

1. a way to "mark" a given problem as "I got it right" or "I got it wrong" and then have the ability to select problems only from the "I got it wrong" bucket. I used a site with something like that to prep for my ham radio license test and it was really useful.

2. A way to attach (virtual) "scratch paper" to a problem. I'm picturing a way to input latex and render with mathjax so that one can "show their work" and help work through longer multi-step problems.
You Can Charge a USB-C Macbook Pro from Another USB-C Macbook Pro
Handy if you're in a conference / meeting and your buddy has a full charge. Just plug in your usb-c to usb-c cable to charge up.
Jamal Khashoggi: What the Arab world needs most is free expression
microcontrollers... arduino seems to be a popular smoothed-over platform/IDE/ecosystem that's friendly to beginners.

The actual C++ is largely hidden and one deals with statements inside one of a few preset event handlers in an event-loop...
I think it's a good move. Discord is definitely making almost no money up to the current point, and this move can help put it on the eventual road to profitability. The cut of profit Discord takes is the same as Steam (30%).

The product itself is fantastic, and other than valid security and privacy concerns, it's a lot better than any other chat application I've used in the past.

Discord is actually quite nice for communities other than gaming. I'm a member of a number of language learning and programming servers that I enjoy.

Skype looks more and more like a massive mistake after the Microsoft acquisition. You have a product with an abysmal user experience, no improvements, an awful group chat feature, unreliable voice calls, and so much more that was wrong. I'd wager that they were over-confident of their dominant position. Slack and Discord will hopefully completely replace it with time.
Continuing:

> The Prius regained control and turned a corner on the freeway, leaving the Camry behind. Levandowski and Taylor didn’t know how badly damaged the Camry was. They didn’t go back to check on the other driver or to see if anyone else had been hurt. Neither they nor other Google executives made inquiries with the authorities. The police were not informed that a self-driving algorithm had contributed to the accident.

> Levandowski, rather than being cowed by the incident, later defended it as an invaluable source of data, an opportunity to learn how to avoid similar mistakes. He sent colleagues an e-mail with video of the near-collision. Its subject line was “Prius vs. Camry.”

Holy shit. Why aren't there criminal charges here?
Agreed! It looks like Hugo and possibly this theme: https://themes.gohugo.io//theme/cocoa-eh-hugo-theme/blog/exa...
If you're spending $500 on something to help keep your stuff private and secure, you're probably not a 2 character password kind of guy.
Manuel Bloom on Research and Learning
There's still a lot of places doing faxes with CC details, especially in B2B. Guess they'll have to finally ditch that.
At this point, you're yak shaving, where the sane thing to do is simply to count the number of times each letter occurs.

Better complexity-wise as well, both in terms of speed and storage: O(n) and O(1), respectively. [1]

The proposed algorithm uses O(n) storage (to store the immense product), and given that integer multiplication complexity is somewhere between O(n) and O(n^2), we end up[2] with at least O(n^2) runtime complexity!

[1] ...assuming the input data is less than 15 million terabytes in size; O(n log n), O(log n) respectively for arbitrary length input. Storing the number of input bytes takes O(log n) space, and integer increment can take O(size).

[2]https://en.wikipedia.org/wiki/Computational_complexity_of_ma...
Read the rules for Show HN and consider submitting it there.

https://news.ycombinator.com/showhn.html
DTMF is being pulled out of band by Twilio (or more likely the underlying CLECs they partner with), thus the agent should not hear it. This is very common for most VOIP carriers, DTMF is carried in the signaling messages rather than in-band in the audio stream. The only person being protected from having access to your card data is the agent who asked you to key in your card.
Reading this, I can’t help but think Uber would be better off adopting one of the commercial data warehouses that separates compute from storage: Snowflake or BigQuery. They have full support for updates, they support huge scale, and because they’re more efficient the cost is comparable to Presto in spite of the margin. You can ingest huge quantities of updates if you batch them up correctly, and there are commercial tools that will do the entire ingest for you (cough Fivetran).

Disclosure: am CEO of Fivetran.
Set a timer on your computer that goes off while programming. When it goes off get up and do 10 pushup no matter where you are. Right in the middle of work. Then go back to coding. Next time 10 squats. Then 10 lunges. Or 10 chair dips. At first you'll get funny looks but soon people may join you.
That may be so. But, it seems to be more common among the children of musicians and children who have heavy exposure to music early in life. But, then again, that could also be indicative of genetics...maybe people who love music enough to expose their kids to a lot of it at a young age have more of whatever this ability is, just not enough to be absolute pitch.

I guess it could be that there are people who have the fundamental ability, without ever learning the labels to apply to them. Like the fact that humans took a while to name a bunch of the colors, and even now there are cultures where blue and green are not distinct colors. Maybe there are people with absolute pitch who just never learned the names of the notes they're hearing. Heck, maybe those folks are some of the ones who are "learning" absolute pitch as adults in these trials.
We have 2 paid options. The mentorship option is a $29.99/month subscription to a Slack channel (i.e. chat room) with one or more App Academy instructional staff 60 hours a week (M-F 6AM-6PM). If it sounds like an insanely good deal, that's because it is :) The placement based plan is the same experience as our full-time, in-person course, but online. You get instructional support, live q&a, pair programming, career support, etc. On this option, we don't get paid until you find a job, so we keep fighting until you do. In that case, it's 17% of your salary for two years, up to $30k total.
I really don't know how to feel about this article, because it's barely a review of a phone, and more of a review of phone culture. The actual review of a phone is only a smidge more than a press release ("call screening is cool! cameras are good!"), but then it makes some nice digressions into phone culture, yet never seems to reach a satisfying conclusion?

I suppose this says something about the state of phones where "reviews" can basically be anything cause all smartphones are pretty much the same now.
Oh yes, I did qualify him for investments and thankfully, I did get answers to all the questions above. I was directly talking to the founder and had researched about his story before getting on the call. He sold his previous venture and is also a partner at a fund in US. I also understood his interest in our company and what are other similar companies he has considered? We also talked about the competition in US and global, both. It flowed like a conversation and I am glad that he was upfront about investing rather than using tricks to fetch information.

I was worried because I just went with the flow and had afterthoughts if I should ever change the context of a call! I am very wary of investors who do not have any entrepreneurial experience. Most of these investors, at least in India, have a very cosmetic entrepreneurial experience?
Pretty soon email will require stamps, like paper mail. I wonder if they will sell forever stamps?

Jk, I just thought it was funny that we pay for services which were always seen as a free alternative to paper mail and stamps were a thing of the past.
Given the constraints of the problem, it's the sanest thing to do.
I'm optimistic about renewable energy coming online fairly quickly, even optimistic about the transportation sector undergoing a vast transformation with the right pushes.

I'm less optimistic about people consuming less. Unless market forces make it more costly to toss away material, we're going to need an entirely new way of manufacturing a lot of different types of things.

CEB is possibly going to be a great alternative for concrete brick construction if it takes off based on the Boring Company. I'm not quite certain of the technical nature, but I understand this uses a minimal amount of concrete added to a highly compressed block of earth. Adobe construction has been used quite a lot in the past. (Probably won't work so well for skyscrapers). That being said, there are supposed to be alternatives here but scale is the main concern. Steel looks like it is going to be the main thing for a long time.

Politics are cyclical in nature, the next cycle will shift and we will likely see a radical shift in a lot of these policies. Will it be enough? Hopefully, but probably not everything.
You learn someone isn't interested in learning or growing much quicker, which itself is very important information.
To experiment with quantum tunneling you're dealing with phenomena manifesting at the 1nm scale. One macro level theoretical app for quantum conductivity seems to involve wave packets interacting with perfectly rectangular uniform tightly-spaced cation-nuclei barriers which theoretically allows free electron tunneling (IE, energy transmission). [1] Even if it works, seems like a lot of trouble given that an array of duplex repeaters in the attic could solve the problem.

[1] https://en.wikipedia.org/wiki/Quantum_tunnelling

BTW Anki as in J-flashcards or as in Robotics?
The pivot to video was based on a lie, lawsuit alleges
I came from a similar background so thought I would reply.

The way I learned was by watching those who are good at it, tagging along and assisting where I could, then striking out on my own.

If you have a little extra money for a commission on early sales, I would highly recommend this approach. There is a lot to be said for seeing someone work under the specific set of conditions your product and domain entail.

The biggest piece of general advice I have is to set aside some time before sales meetings to fully get your head out of the technical details of your product. When you're making the product your mind is focused on what the product is and all its faults and inadequacies. Your customers need you focused on what their problems are, and the capacity your product has to solve them.

You may need serious wall clock time, maybe a couple hours, to transition completely. Remember why you made this thing, remember what the world looks like without it, that's where your customers are and you need to understand their point of view.
That's because we live in the old way of thinking (degree = smart, no degree = you are an idiot). Overtime, I can see that way of thinking slowly degrading, especially as more people are exposed to high-quality online courses.
App Academy is making its entire full-stack curriculum available online for free
I may not have expressed my position clearly. Because most costs of living are fixed and not proportionate to income, taking 20% of the income of a poor person will have a disproportionate affect on them, as opposed to someone with a very high income for whom the difference will only marginally affect their standard of living. Take 30% of someone's $20,000 income and you will deeply compromise their ability to exist comfortably in society. Taking 30% of someone's $5,000,000 income will have no effect on their ability to cover their needs and live comfortably.

A flat tax, then, is actually quite regressive, rather than neutral.

Speaking in terms of companies, though, there is also a question of proportion vis a vis size—bigger companies and their employees tend to cost taxpayers quite a bit more than small businesses. There are no giant Twitter-like subsidies for five-man firms, for example. Larger firms are much more likely to make use of legal infrastructure, to need regulation, and to have the power to seek accommodation by the government for infrastructure needed for their given business.
James Mickens on JavaScript is hilarious! I've been a huge fan of his ever since I stumbled onto one of his AMAs on Reddit.
> he was known for having a charismatic (and, to some, annoying) tendency to launch into awkward sermons about the power of technology to change the world.

> “If it is your job to advance technology, safety cannot be your No. 1 concern,” Levandowski told me.

> Levandowski and Taylor didn’t know how badly damaged the Camry was. They didn’t go back to check on the other driver or to see if anyone else had been hurt. Neither they nor other Google executives made inquiries with the authorities. The police were not informed that a self-driving algorithm had contributed to the accident. Levandowski, rather than being cowed by the incident, later defended it as an invaluable source of data, an opportunity to learn how to avoid similar mistakes. He sent colleagues an e-mail with video of the near-collision. Its subject line was “Prius vs. Camry.”

God save us all from engineers with a Messiah complex who think a few boring little lives are a small price to pay for progress.
By all means, do what you can. I certainly do, in fact, I probably do more than most.
Excellent counterpoint. Malcom's Harris' "Kids These Days" goes into a lot of that. Not only the debt but psychology of how their perspectives are groomed in US society.

https://www.amazon.com/Kids-These-Days-Capital-Millennials/d...
The author actually makes a joke in the prologue that he’d be delighted if any reader snoozed off while reading the book.
You can find good books on attachment theory as it relates to romantic relationship (your romantic relationship is one of the best places to develop this aspect of yourself). Those books can give you an understanding of the framework.

To embody it and get it somatically the best way is to work with a coach or therapist and to get into more intimate relationships (romantic or creative) with someone who has a more secure attachment style.

Doing embodiment work, trauma work, practicing empathy and learning how to hold space.

Note -- you'll also have to be selling something you believe in and that is in integrity with your values -- otherwise you'll be working against yourself.

DM me if you'd like.
I'd absolutely love to see a list of preserved historically important computers that are accessible to the public. It'd be great to go and see some - I was already planning to go see a Babbage Difference Engine when I have the chance.
Every reason you cited can be had by starting in community college. If I were advising a graduating senior today, I'd advise them to consider a gap year and to go the community college route. You can still get a degree from the most prestigious state schools while paying a small fraction of what you'd otherwise pay for your first two years of school.

Since price is becoming an issue, prioritize junior/senior years since those result in the degree and look to economize for freshman/sophomore.
Hey vortex_ape, we're also working on extracting data trapped inside scanned PDFs and recently, we've begun to get good results using DL algos. I am based in Gurugram, would you like to catch up and exchange experiences?
And the people designing them are still just as irresponsible. It's not the technology that needs to be regulated; it's the humans.
Someone was forced to write a review for a phone, but felt like having an op-ed about the philosophical impact that our phones has on us? Fun read though.
This piece shouldn't be read as just a review. I see it as a commentary on how mundane tech can be while simultaneously undermining the fabric of society.
Microservice Architecture at Medium
ah, my bad, i see how that makes more sense. FWIW i agree – often, mentally converting a theorem to a type and thinking about the problem in that framework makes things easier for me to grasp. (also explains why we "apply" theorems/lemmas :) )
There was no autonomous mode reporting requirement, but as I understand The New Yorker report, they probably should have contacted the authorities because they were involved in a crash.

Their main claim to fame is driving 10M miles in autonomous mode without any serious incidents. The crash, as described by The New Yorker, was a serious incident that was at least partially caused by their software behaving recklessly.

https://www.pe.com/2011/01/03/who-has-right-of-way-when-merg...

The New Yorker also mentions other incidents that were never reported to the public.

Why iron fisted regulation?

Their software may soon control thousands of two-ton SUVs on public roads. They've shown no intention of being transparent. They've shown that safety is not their number of priority.

I am not necessarily saying they should be prevented from operating, but strict regulation is required to protect the public.
That EPA guy, is how people say these days, a sycophant cuck. Total industry $hill and dishonest.

Meanwhile, Scotland closed all of its coal plants and a number of European countries are headed to 90% EVs by 2050.
The book Attached has a lot of great info on adult attachment theory in the context of romantic relationships.
All Roads Lead to Wall Street
Don't Be Fooled by the Talking Horse – 'BoJack' Is a Sadness 'Sneak Attack'
Blurbs: Jar Jar Returns, Twitter Spam, iPhone 2x-Fold Patent and More [pdf]
You're right, it was 'unlicensed' rather than 'undocumented'.
Ah darn, on first glance, it looks like the server is Windows-only.
That doesn't make any sense. Who's paying 37% taxes as a waiter/waitress? Even before Trump's tax cut, wait staff would still likely be in the 10-15% bracket, and you'd add on 12.5% FICA taxes. And this is after deductions, so effective tax rate will be much lower. Unless your state has 20+% income tax, there's no way a waitress is paying 35%.

Corporate taxes don't factor in either because they are only on profit over and above all expenses. Increasing wages of an employee and shifting payment from tips to w2 income merely ensures the employee pays the taxes they should've be paying in the first place and will not increase corporate taxes.

If wait staff shifted to higher wages, the employer would increase prices and could note on the menu that tipping is not necessary, but appreciated. If that was the case, I would still tip, but only for above average service.
Cement curing is an even bigger CO2 emitter, on the order of automobiles and meat production.
You bought an island < yes

to make a cryptocurrency around spending time on it? < MAJA was created as an experiment, we've been giving it to people we are inspired by. It's backed by time on the island.
they make probably $10+ an hour and are not considered "tipped" employees, that's way more than a waiter's minimum (used to be $2.13 or so)
I would say it is not what it adds, but what it expresses without attempting anything else than having those words read. It echoes the disconnect a lot of us feel between the power of a world-changing-device with what is being used for, embodied I think in what I often read here on HN comments: "This era has produced the smartest (or more knowledgeable) and wealthiest people in the history of humanity an what are they doing? trying to make you click on ads."

The smartphone has reached maturity and very little more can be said that hasn't been said about the technology inside of it so maybe it's time we take a step back and rethink the place of it in our society, or maybe not or not yet. The value of at least asking that question is what I took from the article.

In other words, it is more a "review" not of the phone but of the people using it.
In common English, rather than mathematics, proportionate merely implies that these things are related in size or amount. There is no implication of a fixed ratio. Replace "proportionate" with "appropriately related" if that helps.
Sleep deprivation is a major activator of mania in bipolar disorder.

You can even kind-of emergency manage depression with timed sleep deprivation if there are huge reasons (e.g. pregnancy) you should be off your meds.
What Is Chinese for Payloads Over Platforms?
No, but making an example of him would have reduced the incentive to do it again.

Also, removing him from the the tech lead position would have helped prevent further incidents.
It would be nice to see job creation broken down into 'salary/income generated'
Does that mean he actually gave you a thorough audit, or that he tried to crack them and failed and you assume that means they're solid?

If the former, do you have reason to believe that he's trustworthy?
The Queen West Voyeur
Ever researched why it breaks?
FORTRAN is very popular in Physics. They have some private heavily optimized libraries written in 1980 and updated and improved each year and they are not going to rewrite them.

You can find some code with the classic 5+1 spaces at the left, line numbers, no more than 72 characters. My recommendation is that if you are going to add new code, write nice code with proper nesting and using the "intersection" formatting http://fortranwiki.org/fortran/show/Continuation+lines . Preferably with modules, explicit types, and other modern stuff.

On the other hand, the compilers are very good. Sometimes they are faster than C because you are not expected to do too much silly things with pointers, so the compiler can understand the code better. In The Computer Language
Benchmarks Game, you can see that many times Fortran is faster than C. https://benchmarksgame-team.pages.debian.net/benchmarksgame/...
How Arm sees its role in emerging segments of tomorrow’s compute challenges