skysight-inc/HackerNews huggingface dataset:
The article says that this scheme occurred during specific years.

During the 1990’s they also beat the market.

“Medallion, which is open only to current and former Renaissance employees, has generated returns of about 40 percent after fees for decades by using computers to spot market patterns. It’s distinct from the funds Renaissance makes available to outsiders, such as the Institutional Equities Fund.

Medallion earns most of its money through short-term trading of securities and other assets. Such earnings typically get taxed at the same marginal rate as salary. The tax code rewards longer-term investments with a preferential, lower rate.

The dispute centers on transactions the firm carried out with Barclays Plc and Deutsche Bank AG between 2000 and 2015 that had the effect of transforming short-term trading gains into long-term returns. Rather than own securities directly, Renaissance instructed the banks to buy and sell them within a portfolio of assets. It then bought an option from the banks tied to the portfolio’s performance”
Buying and selling a home could soon be as simple as trading stocks
The reason everything gets "shoehorned" into "mass on a spring" is that this is the first term in the Taylor expansion.

No matter how ugly an expression you have for force as a function of distance, if you do the Taylor expansion you inevitably get a constant force term (often zero) and a "mass on a spring" term.
Yes but if you burn them....
Makes you feel more like an operator, I guess?
Many who make millions are risky and lose it all, or more. How many of them are net positive over more than a year?
Is it possible to protect one's direct-deposit wages from (unjustified) ACH reversals, by transferring funds into a different account ASAP after the deposit occurs?

I.e., by maintaining an account that serves only as a temporary inbox for direct deposit?
Seems cool. But a lot of the things this blog gets excited over are better understood as features of Google’s platform that are available to and exploited by many of their systems. Eg disaggregated storage with append-only immutable files is just what Colossus does.
> The London Stock Exchange isn't technically in London - it's in the City of London, an exceedingly weird semi-autonomous enclave where corporations can vote in elections.

The City of London is part of Greater London and subject to the jurisidiction of the Greater London government. ("Greater London" being the entity that most people are thinking of when they refer to "London"). The London Stock Exchange is in the City of London, which means that it's also in London (Greater London) as well.
I don't know, we didn't bully kids that didn't have a Nintendo/Sega/Playstation growing up, I'm not sure this is too much different. My son is 9 and wants a phone. He has a tablet. The only reason he can articulate for wanting a phone is that many of his friends have one, which is not a great reason. He has a specialized kids watch that is a phone, so he's covered on the "contact parents" front. Otherwise, he's never said anything about getting made fun of on the issue, and he's been plenty upfront when anything like getting made fun of or bullying has been an issue in the past.
Chinese space station core module passes review but project faces delays
I'd recommend My Ántonia by Willa Cather
Yes, it certainly looks like what would be dictated by statistics with random chance that eventually reverts to a slightly negative mean.

In the short term it's not that unusual to flip a coin and get 5 heads in a row, but the more you throw the closer to a 50-50 split you'll see.
I can think of several countries with universal healthcare where hiring is still complicated to say the least.
Not arguing it would still help, though!
Improving the performance of smart contract execution
It's often difficult for me to discuss this since I do automated trading. I've been doing this for over 10 years now, have grown a company out of it that has 30 employees, and I maybe lose money 2 or 3 days out of the entire year and often times due to technical reasons...

Either daily movements of stocks are not at all like a random walk, or I am just one heck of an astronomically lucky guy. Now I do consider myself fortunate and privileged, for sure... but the amount of luck it would take to repeatedly make money on the market day after day that can fund a decently sized team of high paying engineers, data center costs/hardware costs, so on so forth... it's unthinkable.

The stock market, at least to the degree that I am involved in it, very short term market microstructure, doesn't behave anything like what economists say it does.
Show HN: Breakout Startups Memos – Mini S-1's of Rocketship Startups
And that's fine IMO as long as you know you are making a tradeoff.

But unless you have your 1Password setup to need the secret every time you go to have it fill in the password, the seed string is in memory unencrypted along with your passwords (or more specifically, it's stored in a way that it can be decrypted by the app/extension on it's own). That makes it one spectre/meltdown style exploit away from getting everything needed to login to the account.

Still, if that system works for you, then good! having any 2fa (even SMS) is better than nothing, storing TOTP codes in a password manager is better than SMS, storing them in a seperate device is better still, and U2F keys are even better still.

Like anything it's a gradient of tradeoffs, but I've seen too many people go from Google Authenticator to 1Password in an attempt to further secure their account, and I just like to point out that there's a good chance it's doing the opposite.
The post is using [0] this theme, which hasn't been updated in over 6 years.

[0] https://wordpress.org/themes/duster/
Hey! So cool that you have that much data :) Would love to hear more about your thoughts if you're open to chatting - ruthie@jointherest.com
They have a reason to make that article: there is a lot of companies fooling the Brazilian people over this.

I'm a Brazilian software developer for the financial market. I also made some financial courses on the same university that the authors.

Brazilian stock exchange market has exploded in the last years and most of my friends decided to 'work' as traders. None of them with prior knowledge or experience in the market. All of the posts on Instagram every time they earn some money.

The cause for this fever was the marketing around 3 or 4 companies who sell the dream of financial independence through high-risk financial market lessons. Normally they offered courses to famous people for free and use their image to convince the rest of us.

One interesting thing: they normally sell the course with a private platform to trade the stocks included. I believe that they use that platform to collect data and operate against the traders that use that platform. They know the strategy that they are going to use (because they teach them), so it is easy to operate against.
I'm a parent of three girls, the oldest of which is 10. None of them will have smartphones, probably not even in high school. I run my house pretty much like the author of the article -- there are gadgets on the weekend, only. And even then the internet-connected ones are very carefully controlled and there are a ton of rules.

But you know what? My kids aren't babied. My oldest and I just went to a two-day rifle shooting clinic, and the two oldest have knives of their own that are very sharp and that they can use whenever they want.

They hike in the woods by our house, unsupervised, and they ride horses and swim. They climb trees. They camp in a tent in the woods by the house.

As for their peers? Those poor kids have never even touched a sharp knife, much less been given one of their own. My kids are well aware that they're allowed to take a lot more risks than their peers, and that they're given more responsibility for their own safety.

They're not babied. Rather, the kids who stay indoors on a gadget are the ones who are babied and stunted. They're the ones whose parents have infantilized them.

A kid doesn't "deserve" a smartphone. What they deserve is a childhood. They deserve to be bored for long stretches and to have to make up their own games and stuff to do. They deserve the privacy of their own thoughts, and to not be tethered to a gadget that they can't put down. They deserve flesh-and-blood relationships, instead of jerky pixels and audio. They deserve a life, and not just an existence.
Yeah, the carbon cost of abandoning the suburbs and building enough apartment units for everyone there is rarely considered when people say we have to abandon all cars.

People are going to abandon a $200k investment to pay high rent in a city? Because if everyone has to leave the suburbs, no one will buy those houses.

I fully support increasing urbanization, but hate for electric cars (because it's not the "perfect" solution: public transit) like this is not well thought through.
Making an assumption about the population based on a small non-random sample is usually the belief that needs to be justified by evidence.
I am not Twitter's CEO. I'm twitter's user. I cannot use that feature without opening my account to this attack. Therefore that feature for all intended purposes does not exist because it is unusable for the purpose of protecting the account.
Property is not a great option in the UK currently due to rather high stamp duty (i.e. property tax, payable by the buyer) - if stamp duty were lower, I would probably put my money in more property. Equities were a reasonable second choice - my portfolio is fairly diversified now, so I am not making trades on a daily basis but I do keep an eye on it all the time. I probably re-balance my holding about once a week.

Index funds can take quite a hit in a bad market. I am very careful to avoid big slumps in my portfolio value, even if it means not being invested for a month or two.
Or the 14 year old does it behind their backs.
Hey! Thank you for sharing that. I'd love to hear more about what kind of content would be interesting if you're open to chatting - ruthie@jointherest.com.
JavaScript Optional Chaining – An Introduction
Also, the people I've known who call themselves day traders, were inevitably people who weren't too bright and were unemployed with independent income (mostly trust fund babies, but some others who had supplemental income) - From my own personal experience, these people don't even know what EBITDA adjusted earnings are.

If a world class mathematician says he will do something, I see the probability of success wildly higher.

It's like when you go to a writing class, and someone inevitably is admonished for doing run on sentences, and then they say "well Charles Dickens did it". Why yes, he did. But you probably aren't going to have Charles Dickens levels of talent.
Most Overworked Cities: Washington DC, Houston, Atlanta, Seattle, Chicago
As usual, phys.org makes claims that go way beyond what the actual paper justifies. The actual paper is here:

https://iopscience.iop.org/article/10.3847/1538-4357/ab32da

The phys.org article says "Two University of Hawaii at Manoa researchers have identified and corrected a subtle error that was made when applying Einstein's equations to model the growth of the universe". A more accurate phrasing would be that the researchers have proposed a modified model. Whether their proposal is valid remains to be seen as other researchers in the field check their work.
It's funny about that because I grew up playing keyboard-controlled games like Jazz Jackrabbit where it was right hand arrow keys and left hand jump/shoot/action. This is still natural to me today, and indeed, games like Hollow Knight and Celeste have this control scheme as the keyboard default, despite that pads have always had movement on the left thumb, and kb/mouse games like shooters also put the movement on the left hand.

Anyway, it was just funny watching my 8 year old daughter struggle to play a game with right hand arrow keys recently, and realising that her only experience has always been left thumb gamepad— she did much better once I paired up a DS4 for her to use.
It may be simpler to start our not thinking of particles as matter, but instead thinking of them as little energy fields. Like a magnetic field, a particle has properties and interacts with some things and not others. This is why it's a "field theory".

Say you had ten different light bulbs. Could it make sense to talk about their differing light output as "diameters"? It wouldn't be defined in terms of a physically measured length of the bulbs, rather a diameter could be defined to be about properties of a light bulb.

Remember all these words are in some ways arbitrarily chosen by people. If you replaced the word diameter everywhere with "fat content" would all the math still work?

The math would still work fine. The problem would be it's even less understandable than diameter, and it makes it less efficient as an abstraction that you can grok and reason about.
Not so easy as the outcome is very hard to predict. Hard, soft or no brexit? Still up in the air.
My son is 10yo, we want to give him a phone when he reaches 12. It's becoming a bit more difficult, a lot of friends already have one so he keeps asking but he just has to wait :)

I'm not to worried about social isolation. This will vary from person to person. The article mentions all the fun things the writer did when she was a teenager. However, when I was young some kids were addicted to gaming on there 486 or 8bit NES, never met any friends. The tone of the article is a bit 'in the old days everything was better'

Not having a phone will cause some isolation as well. A lot of meetups with friends are announced on app-groups. That was actually the moment when I decided to buy a smartphone myself, when I started missing out on parties.
It's not even accurately replicating the NES game in HTML5. Sometimes HN randomly upvotes very irrelevant and random projects.
Twitter CEO account hacked, This is a real hacker threat
The security level of web sites on the internet always has weaknesses. Meanwhile, hackers or hackers always try to penetrate the security of various websites. Social media is one site that is often penetrated by hackers. Twitter is one of the biggest social media right now.

Some time ago, the Twitter security system was breached by hackers. But accounts that have been mastered by hackers are not ordinary accounts. Hackers managed to penetrate the security of the Twitter CEO account, Jack Dorsey, on Friday (8/30/2019).
Racist Tweets
Reported by APnews , Jack Dorsey's Twitter account @ 4.2 which has 4.2 million followers had time to express racist and vulgar tweets. Twitter finally deleted the tweet after it lasted for about 30 minutes on Jack's account.
Form of protest
Poems written by hackers in the form of harsh words and controversial statements. Some examples are "Hitler's innocence". Hackers appear to be threatening Dorsey to unblock a number of accounts that are 'unhealthy'.
Plan to Improve Twitter's 'Health'
Previously, Jack Dorsey promised to improve 'health' and politeness in social media services. Through this statement means that Twitter will block the account that is spreading hate speech and harassment. Twitter has long been criticized by the public for allowing such bad behavior to run rampant.
*Case Investigation
Twitter is still investigating the case of hacking this Twitter CEO account. Based on the tweet, a group called Chuckle Squad is suspected of being responsible for this incident. Twitter has deleted several accounts that are likely to do this hacking.
Singapore exchange is pretty small, they don't even make the top 10, while Tokyo is top 3 (by company market cap), so makes sense Japan instead of Singapore
This reminds me of Gunz, an early aughts PvP game whose dedicated community formed itself around several of the games broken mechanics and bugs. To play Gunz you basically have to master glitches, it really could have its own article dedicated to it
Hmm, looks like JavaScript Mario, not HTML Mario. HTML Mario would have been much harder, if not impossible to make.
> Then there is no risk to hiring a new employee beyond the wages you pay them.

but you must not forget the additional administrative/accounting overhead, the risk from the wide variety of lawsuits one is vulnerable to as an employer, the risks of employee injury on the job, and costs associated with the possibility of laying off employees in the future. surely there are more costs than just wages.
You're so awesome
Newly identified electric eel is the most powerful ever found, say scientists
Maybe you're doing those activities extremely often, but for me they're edge cases vs the amount of times FaceID doesnt work for me when I'm simply wearing sunglasses, or a hat, or just in odd lighting.

I have both a work issued iPhone, and a personal pixel with a fingerprint unlock. I cannot recall any time I had issues with the pixel over the last month, while I'm extremely annoyed just thinking of how many times FaceID either took multiple seconds or didnt work at all.
ilxor
One thing to keep in mind is that even a random number generator can trivially turn a profit when the market is trending up. It's when the market is volatile or going down that you get a real test of how well a strategy works.

Which isn't to say that technical analysis is unfounded. And I do believe that there are opportunities that exist for individuals that haven't been arbitrated out of the market by the professional quants simply because they don't represent enough money to be interesting on an institutional scale. But it takes something like a bear market to really know for sure if you've found those opportunities, or if you're just riding a rising tide that lifts all boats.
Compensation in 2019 – new grad tech offers
Diversification of ownership and change in management. The larger an organization is the more it becomes a social institution.

Over some multiple of the poverty line an individual should only be allowed to own so much of a company and industry. I own company A and lists company B as a competitor Then you can only own so much of the competition.

The largest companies and institutions should have term limits on upper management, board seats, and consulting arrangements.

Also, the larger it is the more shareholders it needs. And there should be only one class of stock.
I would put this on par with being an anti-vaxxer. Not only are the kids not allowed smartphones but their internet access is apparently strictly monitored well into their teens. Good way to get your kids to hate you as soon as they move our.

The author is just longing for an era that’s gone. It’s funny she mentions hanging out under bridges, drinking, and dating while also probably never letting her kids get anywhere close to a situation where that is possible. And won’t let her kids make mistakes even regarding food, and complains about kids these days not wanting to drive. You would think this is some kind of satire making fun of boomers (even though the author is technically not one)

This is, in my opinion, a terrible parenting style. Smartphones are a part of life these days. You wouldn’t have your kids ride a horse drawn carriage wearing handmade blouses to school, and bemoan the fact they won’t play outside with a hoop and a stick, just because that’s the way it was when you grew up
While I don't necessarily agree with Kranar's conclusions, I think his point is that the same can be said for many highly risky endeavors, like building a startup.

IMO the main difference is that, while in both cases you'll see a small number of successes and a huge number of failures, in startup land the net expected value is positive while in day trader land it is negative.
Being a student, it really quite is a necessity.

Group chats on Facebook / WhatsApp / Telegram are how people share experiences, learn, set up meetings or parties. All the people which I've met so far who didn't use those platforms were socially isolated. Not sure whether it's correlation or causation, it still does count.

Obviously, having a smartphone won't magically bring you friends.
No one knows what Brexit actually is though. It's either not happening, kicking the can down the road till the UK manages to square the circle w.r.t. Northern Ireland [0] (i.e. the current deal), or crashing out with no deal causing days long waits at the ports of entry as inspections take place.

How do you price in all those disparate outcomes into the same price?

[0] UKs own requirements for Brexit are mutually exclusive 1) No customs union, 2) No Northern Ireland border, and 3) No border inside the UK. These three can't exist in the same deal. The only real way to properly Brexit would be to cut Northern Ireland lose or risk reigniting the Troubles by violating the Good Friday Agreement.
> C is just an assembler with macros

No. Can we put this dumb meme to rest? 1972 C was just an assembler with macros. 2019 C has been a major focus of highly complex compiler research and engineering for decades.

Sure, if you write broken code, C will happily access illegal memory if that's what the input program tells it to. But it will do so efficiently ;-)
Are You a Mediocre Developer? Me Too
I completely agree with this article.
Isn't this also a UWB chip? If so, this may have something to do with the rumored AR headset
This is what I do. Not sure if it’ll work for this case, but my primary reason was to remove a single point of failure from my “banking architecture” and avoid the headaches publicized by people on HN that lost access or to their only bank. Hopefully I never will have to find out if it works!
"Speed reading" comes from a functional view of activities: You eat in order to power your body, you read in order to acquire that all-important "information", you go to school to acquire "job skills".

Which is true but so what? They are elements of life; sometimes you grab a quick bite on the go and sometimes you sit down to a multi-hour meal, yet both are "eating". Likewise with reading.
U2F and it's successors like FIDO2 were specifically designed to prevent phishing.[0] Google claims that it has entirely eliminated phishing of their employees who have been issued U2F keys.[1]. The solutions to these problems are out available.

[0] https://fidoalliance.org/fido2/
[1] https://krebsonsecurity.com/2018/07/google-security-keys-neu...
Agreed. one of the most illuminating aspects of the Obama administration was the divergence between great tolerance for corporate whistleblowers on the one hand, and animosity toward government whistleblowers on the other.

Also, people cite the "more than any other administration" argument frequently, especially in media, but rarely think to mention the small sample size. nice work!
A car service app that the public uses has a large surface for regulatory enforcement. When NYC wants to catch illegal car service activity they have police or the taxi commission post people at the airport.

Incorporation somewhere without rules only works if the space your enterprise operates in is outside the reach of the gov't as well.
Though it is atomic weapons, NATO and American troops which actually kept the peace.
That's not so simple because swing trading is not looking for Arbitrage. 90% of traders lose but a good portion of us make money. It is about building a system which works in bull and bear markets.
I genuinely don't understand why Snowden is treated as more shocking than things published in the open by James Bamford years earlier.

https://www.amazon.com/James-Bamford/e/B000APPIUM/ref=dp_byl...
Hes also sitting in the medical ward due to multiple issues, including mental issues. I dont think the news wants to report on his declining health.
> Renaissance Technologies did not use algorithms to beat the market...

This is false. RenTec generated outsized returns for a decade prior to entering into the derivatives with Barclays and DB beginning in 2000.

> the bulk of their profits beyond what would have been made just investing in an index fund

This is also false. For example, RenTec generated 99% return in 2000 net of fees, while the S&P 500 lost ~8%.