skysight-inc/HackerNews huggingface dataset:
Tech is mostly FPGA order placer interfacing with a C++ market data decision router and a high end Melanox card. Their kit is inserted as physically close to the exchange matching system as possible. One of the big firms famously reversed the box insertion into the rack and trimmed their Ethernet cables down to minimize the physical length signal had to go (probably theatre but that’s the mentality). Some strategies require good low latency inter exchange connectivity so a comprehensive and well organized microwave network is another bit of the stack. Otherwise it’s largely what you would expect. There’s some mythologizing about these companies but a few notes: they’re often highly insular and their code and stacks can be 10 or more years behind the times, but the kernel of execution will be highly current within that stack. A large part of their moat is that mythology, most people would quit and do some other segment of finance like quant trading or stat arb rather than try to squeeze out some profit in HFT. My view is it’s not a winner takes all market though and there’s a lot of room at the table, but it’s a very challenging market overall. I think bringing in a more modern tech stack that cuts the cable back a little more would be an advantage too.

On the techniques, there’s not a ton explicitly written unlike quant and statarb that have almost too much written about them. The essence is very simple though, you basically use techniques you would use in board games or casino games - look at the structure of the game itself and try to find little gaps in the rules that let you insert yourself. For instance if you can see the order being placed into the book before any march is processed you can try to insert yourself into the match engine before anyone else. That’s low latency trading more than HFT though. Likewise price discrepancies between exchanges (microwaves) is low latency.

HFT would typically be something like a market making strategy where you place lots of small orders around where you believe the market is going playing long and shorts. You place bazillions of orders all the time to pick up small variations in a way that on average is better than random trading. This is high frequency trading because the frequency of the trading is high.

Often they get conflated because they complement each other. Being able to do one often implies you can do the other, so why not? They also sometimes help each other synergistically.

Source: I was there (and I’m building my own as a side project with some long time coworkers)
How does sentence-transformers compare to OpenAI embeddings?
How long does it take to generate an embedding on a CPU?
Look, I'm at work and don't have time to dive deep into economic theory. If you read the source articles you'll see it has a 100 year plus history and is well grounded in basics of economics, in fact has more accurate base terms than most theories-- it is the first one to recognize that land and capital are separate concepts.

You also seem to be surprised that your ownership of land is a right granted by the government. Go ask your favorite law school professor about this, they will confirm that I am right.

Historically all land belonged to the sovereign. The US didn't like the idea of kings, so under our common law all land belongs to the US government.

And you get your rights to your piece of it because the law recognizes that you should have and deserve to have monopoly rights.

But if it wasn't fundamentally the property of the US federal government, where would the government get the legal jurisdiction to enforce the monopoly rights it has granted you? The US government will not enforce any property rights you may think you have in Mexico.

See, I'm not questioning private property, I want you to be able to own land. I'm looking at it in its proper full legal context.

Now you want to restrict voting rights to land owners, probably thinking some variant of "no taxation without representation", right? But recall that the fundamental owner is "we the people", not "we the individual to whom the people have granted a monopolistic usage of what we the people own".

So yes, since every citizen is in fact the land owner, then the single tax principle by default meets your criteria of restricting voting rights to land owners.

And since I've met your criteria, welcome to the movement. We are glad you are here.
I was in this area from 2003 to 2013. Can't think of any reading materials, but it all boils down to ultra low latency (think < 100 microseconds within the local network) and high volumes (think > 30,000 transactions per second). The state of the art may have moved since then, but:

1) Network layer: raw TCP sockets with binary packed messages (sometimes structs directly cast to and from raw buffers, keeping network/host byte order in mind); separate message data dictionary to avoid metadata overhead inside messages.

2) Processing: optimised C++ code; pointers; multi-threaded processes that utilise all available cores; minimal locking and contention between threads (queues with spin locks and bulk transfers); threads directly bound to CPU cores (prevent context switching overhead); prevent heap locks by allocating large object pools at startup;

3) Disk I/O: minimise disk I/O in logic-heavy, low latency threads; application level in-memory disk write queues; prefer append mode writes; application level in-memory caches (basically hash maps of reference data loaded at startup)

4) None of the "trendy" programming practices: no OOP design patterns; no dependency injection; functional programming, but without fluent APIs;

5) No popular frameworks: internally developed solutions optimised for our specific use cases, instead of off the shelf libraries or frameworks (e.g. the messaging middleware was in-house)

There is more, but this is what I could think of, off the top of my head.
Nothing beats native.

2nd best is what you know.

I'm using egui right now for quickly putting together a native cross platform tool. For a startup, again I'd pick what you know. RN and Flutter will provide similar experiences for most apps. Flutter will perform better with charts etc.
The EU Commission is on the EU Mastodon instance, so they can do better than signal if they federate. They can just @ them.

https://social.network.europa.eu/@EU_Commission
Are you loading up pre-oppenheimer also, is the question this leaves me with.
And yet -- grpc is still "incubating". Do these statuses really mean much?
Was there a Barbie submersible bath tub toy? If not, they should make one. They can make it a companion to the Barbie yacht. You can even put a back story that she bought it from an auction from a sanctioned russian oligarch
Are shills misinformation adjacent in some way? It's interesting to see activists listed as potential shills, though they don't clearly explain the body of evidence that aligns activists as potentially harmful. An activist can be a shill but I'm not sold that they're all bad, but I've definitely run into a good number of activists who border so far on not knowing what they're talking about or how to talk about it that they're essentially harmful to either information quality or discourse among regular people.
I don't think it's necessarily wrong to use 5-Why's in one's analysis. I am suggesting that it should not be the only tool one uses. If success requires several contributing factors that are necessary and jointly sufficient to enable it, then failure should not be limited to a single root cause.
I think any reform to the process such as democracy vouchers are just a shell game. Ok, that money can only go to candidates or issue campaigns. Meanwhile other money will be spent in multitude of ways to shape public opinion. Where do the DNC and RNC get money from? What can they spend on? Just to name one of many entities with skin in the game that can't be funded by the democracy vouchers.

These reforms are going to end up just changing to rules to help one side or the other. Whether or not the ideas were formulated originally with that intent, by the time they get implemented they will be bent for that intent.
Did you read the paper? The authors admit it is only narrowly learning and cannot transfer it's knowledge to unknown areas. From the article:

"we do not expect our language model to generate proteins that belong to a completely different distribution or domain"

So, no, I do not think it displays a fundamental understanding.

>What would be evidence to you?

We've already discussed this ad nauseum. Like all science, there is no definitive answer. However, when the data shows evidence that something like proximity to training data is predictive of performance, it's seems more like evidence of learning heuristics and not underlying principles.

Now, I'm open to the idea that humans just have a deeper level of heuristics rather than principled understanding. If that's the case, it's just a difference of degree rather than type. But I don't think that's a fruitful discussion because it may not be testable/provable so I would classify it as philosophy more than anything else and certainly not worthy of the confidence that you're speaking with.
Asking users to judge a product based on it looking "modern" carries the implication that modern is good.

IntelliJ's new UI is modern, but it's not good.
That’s because he doesn’t.
How do you think ecosystems are able to adapt when the time scale of current climate change (measurable changes over 10s of years) versus previous instancing of natural climate change, which occurred over 10000s of years.
That's double work, especially considering that browsers have built-in native PDF viewers these days.
do those SBCs have digital IO (GPIOs) and a realtime operating system?

The reason I'd buy a Beagle (well, really an ESP32) isn't the price, it's the convenience of havng real time GPIOs.
> "What happened to the company?"

> "It collapsed because nobody knew how to maintain the queries—they generated everything with ChatGPT."
It's just that liberals and conservatives alike are both opposed to his projects that have anything to do with transportation around here.
Then the next year we had the Herald of Free Enterprise, and the year after Piper Alpha. It was a pretty scary time to be a young kid!
True... I guess I just don't respond well to the general alarmism. Not that this article was written that way, but did make the use of "We" as a general sense of the cause.
Totally, thank you. I should've mentioned that her planned trip and all her reservations for places to stay along the trail coincide with the conference. But your point stands- I am doing graduate research, but a conference like this is a much better way to meet people in my field.
My girlfriend and housemates are also all going, Oppenheimer in the morning. Break, eating brunch, then seeing Barbie in the afternoon.
Not GP, but The Joke changed my conception of what a novel could be. It was the first Kundera I read, nothing after that came close, including ULOB. But The Joke was so good I had to read everything else he wrote just in case.
Expect many more such posts and changes after many companies including Shopify shot themselves in the foot by conducting engineering layoffs.

None of the engineers were affected. Many were quickly absorbed by other companies who always had dearth of talent

I don't trust Shopify to do this properly and forever. This will be like Covid WFH. Once the tide recede companies will be back to what they are
It very much is super hard
> Just don't subscribe to them.

(Assuming you're not on a single user server) The problem is, in order for a user to see them, they don't need to explicitly subscribe to them, they need to not block them, which is the default state. Sure, your home feed is people that you're subscribed to, but searching (via hashtags and otherwise) and your federated feed are both looking through all content that the server has found that hasn't been explicitly blocked. Not to mention replies to posts aswell could be from anywhere.
This will inevitably, at some point, by the nature of anyone being able to post anything on their own servers, include "unsavory" photos including: Literal suicide, murder, abuse, uncensored pornography, death threats, witch hunts, and more. And yes, this will be included in normal use. I myself saw a spammer that spammed uncensored pornography to a bunch of "welcome to Mastodon" hashtags in the first 30 minutes of my server being up.

> Closing your eyes does nothing.

While this will not cause the actions occurring to stop existing, acting as if the mental health of the viewer is irrelevant is not acceptable. I've known servers where people weren't able to sleep at night because someone spammed videos of animal harm/abuse... and in that case, the admins eventually deleted it and banned them. Your suggestion is to just "let it be shown" and "let the user block it if they don't want to see it".
While seeing things once and then blocking is better than not being able to block at all, trusted authorities (admins?) should have the ability to stop content from being spread to users that trust them to handle unwanted content. Sometimes never seeing things is the best option.

Perhaps the middle group here is to allow users to disable administrative "suggestions" and see all content, if they so choose? (Although this is not truly possible with Mastodon, perhaps future federated networks could implement a similar idea)
Yes. It creates liquidity in markets which causes markets to be far more stable and accurately priced. I would put it at worst as morally neutral.
Same here

And we don't even have any job openings posted. We used to get applicants for non-existing openings in broken English straight from India... and now we get applicants for non-existing openings in ChatGTP English straight from India ^_^

My impression is that since mid 2022, there are A LOT of outsourcing companies who urgently need something to do.
> If you know SQL why is this better than just writing SQL? If you don’t know SQL how do you know it’s correct?

This line of reasoning applies for all areas of knowledge, and I wish more people would realize this about LLMs.
How to get the green dot to turn on for Slack users
Africa (continent), there is a different row for African Americans. And "African (Other)"
Huh? So doing a crappy obvious job at deception means lawyers will go easier on you?

If I sell lifted PS5s in a dark alley with a cheesy Ronald Reagan mask on, does the law say "hey, he didn't try that hard to deceive anyone."
This probably comes as a surprise to most people, but the clear majority of non-tech businesses don't have a stack because they don't have devs.

What they have is an immediate need for something, so it doesn't matter which stack is chosen.

In many cases they may say "can you fix this app the other contractor built", and then you will be using that stack only as far as that particular enhancement or fix.

They don't have git, or Jira, or ticketing systems, or code review or any of that.
If it were truly working well, I'd expect Musk's brand new company to HQ there.
> I don't see as many people complaining about malware on Android as people complain about it on windows.

Can't believe I'm seeing such a statement on HN. Android phones are arguably worse on malware-related threat vectors, especially when most OEMs themselves package in the majority of malware on consumer phones to begin with. Even assuming less dumb users, at its best it is an unholy combination of adware mixed with spyware, ridiculous amounts of tracking in the name of "telemetry" and consumer-hostile design choices often literally designed to make the user choose the wrong option. Combine that with how ridiculously easy it is to get malware installed on Android (the most popular apps and games on the Play Store are all adware, installing compromised "modded" apks that "unlock premium features" is just one tap away) and you get a platform that would make any infosec manager cry. At least Windows PCs are controllable by the organization's administrator, how are you going to control people's phones unless you start issuing company phones as well?
Unfortunately I can only access volumes of 'Electronic Engineering' starting with Vol. 30, and the one you want is 23.
I really appreciate for your answer, specially because I learned from it already, the tip about searching for university name + network is really useful.

Thank you! I'll definitely do it
>other money will be spent in multitude of ways

Sure, and other systems would be needed to provide the necessary guardrails. At no point did I allude to the idea that one simple approach would be a panacea.
Stubhub gets a cut every time the tickets change hands. It's in their interest to buy the tickets off people and then resell them themselves, since they will get two cuts in that case. Couple that with the fact that they're in a unique position to measure demand and model future pricing, they can effectively double dip with little risk.

Further, the shell companies could be something Stubhub is doing to derisk the arbitrage portion of the transaction to isolate losses associated with inability to sell the tickets for a profit to the shell company rather than to Stubhub.

Stubhub was supposed to IPO in 2022, but it doesn't look like they did. This kind of 'gaming the numbers to pump valuation' doesn't seem implausible for a company that is trying to IPO.
The UI is designed for potential new customers that might give them money, not existing customers that are already giving them money and will continue to give them money no matter what they do.
Purely curious; why not start natively with iOS or Droid (depending on which one your target audience uses more)?

You'd have the easiest native API access and fewer headaches. Once you hit PMF & have proven the idea, add the second platform.

Is there a benefit to launching on both platforms out of the gate? Unless perhaps there are specific React web assets you'd like to reuse to get up and running faster via React native.
I keep saying, the first cheap Chinese manufacturer that ships a SystemReady board is going to slaughter the competition.
I would use Kotlin multiplatform and Jetpack Compose multiplatform. But mainly because I already know Kotlin. It's definitively nicer than typescript though.
Flutter is an awesome developer experience and would probably also make sense for small team that needs to support many platforms.
I think I would target flutter if I had to support desktop OS.

React-native would probably be preferable if you are just doing iOS/Android/Web due to the maturity of the ecosystem and wide use in the industry.
I have this policy of never watching two different animes on the same day (to gave it time for it to "settle") but I broke this rule after watching Angel's egg. The atmosphere in that movie was so dark I decided I need to watch something colorful and light so I watched Ponyo, but I was still under the influence of the Angel's egg and I came up with alternative explanation of Ponyo where everybody dies (sea fish dies when it is put in a bucket of fresh water, kids dies in flood and go through the "tunnel" to the "other side" where everybody else is already waiting)
>Imagine if the US Govt made an official social media site, shudder

The US (and other governments) run and maintain a lot more complicated digital infrastructure, it's just that a Mastodon server like this is likely run by two interns with a Digital ocean gift card
> The technological center of world continues to be a hundred square miles in Northern California

If your definition excludes the likes of the entire semiconductor industry for example.
This is a big shift away from user's having control and towards big tech and device manufacturers having control. A device that can do signing for authentication can also do signing for authorization and, since the keys can be stored in a TPM, there's nothing you can do about it. The authorization half of the plan is going to come after everyone has adopted it for authentication.

I'm convinced the technology in play here is going to be used against users. Get ready for "authorized actions" in the applications you depend on.
The source of the tweet isn't the issue at play.

The tweet / Twitter is the issue.

A Mastodon instance is something the issuer of the message controls. Twitter is not.

Web sites don't "notify" people of content, but social media does.
>Putin isn't in power because he pays everyone so well

Oh he absolutely is. The wages in key riot police/FSB/Rosgvardia units have grown at a rate of ~5x or more compared to the rest of the population, they have early and lavish pensions and lots of other benefits.

And because he rules with terror and everyone vocal against him end up jailed or dead. KGB know their business well.

> But what can you do to strengthen suport against him? ...

After ~1 week public activity, you'll be apprehended by the KGB. So you'll naturally try to 'spread the information' on foreign websites, but they get blocked really fast, in a day or less. You'll start trying to use foreign VPN services, but you can't, because they are all commercial and you can't pay them with your Russian visa/mastercard because of the ban they imposed on Russians. Nice?

In the real life, not your fantasies, lots of people were very actively spreading the news about the evils of the Putin's regime. They are either dead, jailed or have fled the country.

Btw, while we're at it, Wagner never tried a coup, but you're right, they had some (very slim) chance to succeed: they had lots of weapons, including tanks, anti-aircraft missiles, etc. Anti-putin protesters don't have any of that.

> Any problems?

Yes, quite a few, actually.

> The most important thing is to build support against him.

Ok assuming you have support against him. How exactly do you deal with 5 million well-payed armed guards?
Back then, there was all sorts of ideas and drills in the event of a nuclear war. There was "Protect and Survive" [0] from the UK Government and plenty of parodies along the lines of "In the event of nuclear war, take cover under the nearest table, cover your head with your hands and kiss your ass goodbye".

[0] https://en.wikipedia.org/wiki/Protect_and_Survive
How to conduct a great technical interview
Indie Hackers and MicroConf might be good places to look. Presumably most are solo developers or small teams.
I assume from the comment they mean from one exchange location to another, but even then it’s not true. Those routes are _overbuilt_ precisely because of HFT so getting on dark fiber for that is cheaper than other backhaul fiber.

I’ve been out of HFT for a long time but when I was in it you could get onto the state of the art microwave networks between Chicago and the east coast for ~25k a month, which isn’t cheap but also not the biggest expense an HFT firm would have.
W2s and 1099s are common, but they are a very small part of what someone could have on their 1040. If, as proposed above, we'd want to automate it without simplifying the tax code, there is way more information required. You'd need to know nearly every exchange of value that someone makes and why they did it. And they'd need to more closely track where people live, travel, work, etc.
This should surprise basically no one. I do aspire to be in a role where I can endlessly ask people why it is exactly they do the thing that they do.

All the while dodging the following scenario.
"We just have to ask... What is it exactly that ya do here?"
At least Totoro was the latter movie in the pair so you didn't go home feeling terrible.
...which implies that (when viewing a computation as a sequence of states [vertices] connected by transitions [edges]) the more functional one's program is, the larger the chunks are that one can effectively model as atomic transitions, and the shorter these state sequences are.

Reducing N may not qualitatively do much from the pedant's point of view, but if one's (formal or informal) analyses tend to scale as O(N*3), reducing N quantitatively may make a difference: between tractable (for formal analysis) or "fits in developers' heads" (for informal analysis) on the one hand, and a big ball of mud on the other.