skysight-inc/HackerNews huggingface dataset:
My long standing hypothesis on Medallion is that they figured out how to apply gauge theoretic techniques to financial markets. This fits with Simons work that he did before he founded the fund. The fact that gauge theory is applicable to for example currency trading is folk knowledge in the Havard, Princeton, IAS circles (here is for example the lecture notes of a popular lecture by Maldacena that uses currency trading as an example of a gauge theory https://arxiv.org/pdf/1410.6753.pdf).

In currency trading example the curvature $F$ of the gauge connection $A$ vanishes precisely, when there is no arbitrage opportunity. Now what Chern and Simons discovered is a differential form K (https://en.wikipedia.org/wiki/Chern–Simons_form), which when taken as the action S(A) of a gauge field $A$, has a corresponding field equation $F = 0$ (i.e. in the finance case = no arbitrage). In these equations time does not enter, however there are several ways in which on can incorporate time into the picture (for a naive example see also the lecture notes). Assets in this framework live in associated vector bundles of the principal bundle defining exchange rates.

My speculative assertion is that it is possible to identify "topological invariants" which can be computed by sequences of trades, i.e. parallel transport along the gauge connection and that those can have provably positive expected return. The fact that the fund is limited to a small amount of invested capital might be related to the fact that the strategies require measurements, that would have self-interactions if they were too large.
> So when you feel like a noob, sort it out.

I feel like this is exactly the point he's making: if you're not putting yourself in positions where you feel like a noob, you'er not engaging your skills to their fullest potential, because the 'sorting it out' part is the thing that's really good for you. Nowhere here does he say 'feel like a noob and stay that way."
I'd imagine this is most useful for things that send frequent read-only emails. Someone personal that you would want to reply to they would presumably get your normal address
They’re currently at $10,000 a month, or $120,000 a year. That’s really amazing!
The fact that you found hacker news, created an account here and comment puts you in the category where you poke around with settings and fault others for not doing so. But there are vast numbers of people using Facebook that just aren't going to look at settings. They aren't bad people for not doing this. Default behaviors mean a lot.
You must not be a Buddhist
I blog (for pleasure) and can confirm everything in this article.

The only posts of mine that continue to get hits are advice on C++ and Python coding, while my lovingly crafted hot takes on Star Wars and whatever book I read last week are generally ignored.

I don't care. You write what you want to write, I'll write what I want to write. The important thing is to write something.
Hmm I can't really see that sense here. But thanks, I shall check out that book, looks interesting!

idiot (n.)

early 14c., "person so mentally deficient as to be incapable of ordinary reasoning;" also in Middle English "simple man, uneducated person, layman" (late 14c.), from Old French idiote "uneducated or ignorant person" (12c.), from Latin idiota "ordinary person, layman; outsider," in Late Latin "uneducated or ignorant person," from Greek idiotes "layman, person lacking professional skill" (opposed to writer, soldier, skilled workman), literally "private person" (as opposed to one taking part in public affairs), used patronizingly for "ignorant person," from idios "one's own" (see idiom).

In plural, the Greek word could mean "one's own countrymen." In old English law, one who has been without reasoning or understanding from birth, as distinguished from a lunatic, who became that way.

https://www.etymonline.com/word/idiot
best way to find out about a backdoored software I never used I guess
You're accusing people of irrational fear of china and the poster is challenging you with evidence that the fear is rational. If you assumed good faith your "loyalty" is not relevant.
I've read so many of these articles lately. People seem to approach the iPad expecting it to work like a laptop, and when it doesn't, they're off to compose a thinkpiece.

Many of these articles also state as a fact things that haven't been true of iPads for a while. If you want a file-centric experience you can have it--at least if you select apps that have been updated in the past several years. All of my files are stored in iCloud Drive, which is synced to my Macs just like Dropbox, and which works flawlessly with iPhone and iPad apps that properly implement the Files app APIs. I don't have any data silos. Yet I view the option of using an iPad purely as an app jukebox with data silos as a major win for many, many users.

I stopped using laptops years ago. No, I can't do everything on an iPad Pro. But I find iPadOS to be a superior operating system for a small, portable screen. (I'm defining small as below 20"). I use a 27" iMac for more advanced tasks (as well as a media server, etc).
I think you underestimate how much better a pre-literate culture is at memorization, compared to a culture with the luxury of writing. It would be more useful to find an example of a similar pre-literate culture to make your point.
Hang on, I need to call my peat guy, who assured me that one meter was sufficient. Also, you have to line that tank with shotcrete.

Hosting locations matter when you are buying network-delivered services. Even if it is trivial to bypass for the user, this one time, jurisdictional risk to the provider is something that you have to consider as a factor when comparing competitors and self-host options.
> The question is -- is that a bad thing?

My answer is yes, because once you enter the job market, you probably won't be working with a phone or a tablet. And obviously if you can't use a keyboard you'll be slow at your task.
We are not aiming to change the way you purchase dental services. Rather, we focus on ensuring you don't buy unnecessary dental services.

Let's say you are Delta Dental, these 28% are basically an insurance fraud. If you could get rid of it, you would save billions. You could offer lower premiums and full coverage without any copays.
I am constantly thinking about ways to find a satisfying solution to these problems. I feel like China is one of the few countries that actually managed to do it. It's not just about having an export surplus. Before they could export anything they still had to build the factories and get workers to move there.

I think the answer is to find a way to drag up a limited group of people as high as possible and then use the gains from those people to drag up the rest to a medium level of wealth. The conventional theory of trickle down economics completely ignores the second step. It's just an excuse to not do anything.

From what I can tell changing an existing community gradually is possible but it will take much longer than creating an entirely new but also well designed community. Find (or slowly create) a highly successful city and try to build another city that follows the same success model. This is probably a good answer for many developing countries but may not be enough in an already developed country.
Yeah, the real problem with scraping is that it's often done very haphazardly and bluntly. Sometimes it's very difficult to tell the difference between a scraper and someone trying to DOS your site.
One of the reasons I use go is the production of static, self contained binaries. Wouldn't binary artifacts make that much more difficult?
I'm asking if there are any instances where an ancient author is known to have lied about something that could be believed by a modern historian if they didn't know any better. For example maybe some Sumerian committed tax fraud on clay tablets, but we caught them thousands of years later. I'm wondering if any specific examples of that are out there.

Edit: to be clear, I'm asking for a specific example, not an argument that an example probably exists out there somewhere.
Best Software Engineering Metrics for Sprints
The title of this post is misleading. The Court's decision related to HiQ's attempt to obtain a preliminary injunction. It's clearly an initial victory for hiQ in that the Court affirmed granting an injunction based on a significant likelihood that hiQ would ultimately prevail and that HiQ would suffer irreparable damage if the injunction was not granted. However, the Court never actually dealt with the merits of the case and, accordingly, stating that the case has precedential value is misleading. The Court itself noted:

"At this preliminary injunction stage, we do not resolve the
companies’ legal dispute definitively, nor do we address all
the claims and defenses they have pleaded in the district
court. Instead, we focus on whether hiQ has raised serious
questions on the merits of the factual and legal issues
presented to us, as well as on the other requisites for
preliminary relief."
Contextualizing Google vs. Oracle
Can you link me to that case? It sounds very interesting but my Googlefu is weak...
OK? The Internet does not use OSI, but it sure was helpful just now as an educational tool for describing that "what layer a VPN operates on" can be confusing. Even if you don't literally use OSI layers, knowing that UDP builds on top of TCP and having a common vernacular to express that is pretty useful. Given that the entire thread was already using specific OSI layers (which have clear mappings to things the Internet does do), starting by saying "the OSI model is not what the Internet actually does" does not seem to be the most productive avenue towards fostering understanding :)
I think I have the math right here, but let's say you start with
> Capital = $100

1 time a day 5 days a week 50 weeks a year, you're going to take your capital and place that many $1 bets with it.

Let's say you net +1% on your deployed capital ever day.

After 250 rounds, you have $1215 in the bank.

Again, correct the math if I'm wrong. But scale that down to 0.57%, which is the win rate I saw, and they're making ~$600/yr, which is the stated average return.

Seems legit
There are also benefits to hot showers [1], so I wouldn't write those off completely.

[1] https://www.medicalnewstoday.com/articles/327461.php
> Or, y'know, I'll stick to beans, lentils, and veggies.

I'd do that too, on top of making use of those insect proteins to feed my chickens and eat eggs, roosters and the hen when it gets too old to lay eggs.

There are a lot of efforts to shift aqua-culture feed to mainly insect larvae based pellets in several countries. Which makes total sense, but I have limited experience with that; but I do know chickens will devour a bowl full of maggots in seconds, which have an amazing fat/protein ratio as way healthier than the typical corn based feed they are often given.

I'm very skeptical when it comes to these headlines, the World produces more than enough food (be it fruit/meat/veg) to feed all of the World's population, its the logistics of a broken food supply chain--obfuscated by subsidies--that make it impossible for it to reach every person at a profit.

Its amazing that it works at all when you think that less than 2% of the World's population works in Ag and this broken system feeds the other 98%, but its also alarming when you think of the vulnerabilities and untenable practices baked into the system.
I hope so. When the phone system was manually-operated switch boards, should the phone companies have been responsible for listening to every call and reporting suspicious activity to the police?
We Sell Your Data
> Isn't data just _data_?

Think of Law around data as using dependent types. The legal protections depend on the type of the data, and the type depends on the content (among other things). You have to determine the type BEFORE you can tell what the law says about it, since the law only cares about the type. You could probably encode the law nicely with something like Idris, but any "code as law" type governance system without dependent types won't be able to express existing law.
Ferrugo: a JVM implementation written in Rust
When is Facebook's next investor call? The number of newly active users (who showed up for this) is going through the roof!
The end users have changed from enthusiasts who want detail to average people who want to get caught up on a subject quickly. It seems to be two fold and I think google have just given up trying to filter signal to noise and just promote conglomerates that it sees as authoritative.
Incidentally this also means that if you buy the etf on day 1 and the underlying is at 100, on day 2 the underlying falls to 99 then on day 3 goes back to 100 then you would be left with less than 100% of what you started with (assuming perfect tracking and no fees).
When Fonts Fight, Times New Roman Conquers
It is becoming very hard to install news wind onshore in France, people are revolting against wind turbine because it decrease real estate price and are found ugly and noisy, and it is happening at a way lower penetration rate than Germany.
Yeah, tinc is great in that scenario. I use it similarly.
As far as law is concerned, data is not just data -- bits have colour:

https://ansuz.sooke.bc.ca/entry/23
https://www.forconstructionpros.com/concrete/article/1088605... is still 7 years ago, but it says they used 30,000 "tons" (probably about 27000 tonnes in modern units) of cement occupying 122500 "cubic yards" (94000 m³ in modern units) to support the 152 2-MW turbines of a 304 MW wind farm. That's 89 tonnes (though that number is probably wildly approximate) or 304 m³ per megawatt. This is a little more than the 190 m³/MW for nuclear plants cited by the 2007 NextBigFuture artcle, but a lot less than the 870 m³/MW for wind farms they cited.

So, if concrete requirements for wind farms dropped by two thirds from 2007 to 2013, what do you suppose they are today?
That is what debugging symbols are for.

Using binary dependencies doesn't preclude having access to source code if desired.
I do think that your post might help to serve some humility to OP. Knee-jerk "X is shit" posts are all too common and totally amateur. With experience you learn to appreciate that everything is just trade-offs.

That OP was so wrong about their 'smoking gun of Bad' hopefully makes them pause in the future before condemning something. Though I don't think such low-effort condemnation posts belong on HN anyways.
In Graham's case, writing interesting content had more to do with him becoming a billionaire, than people thinking what he says is interesting because he's a billionaire.

Sure, he was relatively wealthy from the sale of ViaWeb. But the popularity of his writing is what led to YCombinator and then to him becoming much more wealthy.
> This is why lists of "elderly owned" phone numbers go for so much on the black/gray market.

My grandmother started developing dementia about three years ago. What is really disturbing, is that the scammers somehow figured it out about a year before her symptoms started really presenting themselves. It eventually got to the point where they were calling and asking for her by name several times a month.

She has a fairly large retirement fund, and I think they may be try to get access to it specifically. I am horrified at how sophisticated these operations have become. When they had her on the phone, they must have asked her lots of questions that they used to make a dossier of her, and have been passing this dossier from scam agency to agency. It is clearly a call center calling her, and I have experimented with them. I ask them to call back, and they asked when would be a good time to call back. And then a different person returns the call, clearly reading from a script and already knowing personal information about her.

One thing I am concerned about is that they are simply pumping her for information, so that they can impersonate her and try to initiate a money transfer directly with the bank.

It is so disturbing that there are people out there who know who my grandmother is, and are trying to take advantage of her.
No one alive can make a pencil, nevermind the fabrication of technologies we are utterly dependent on (the computer mouse, for instance).

We've externalized these memories to make for a more sustainable society, because if you could bootstrap civilization, well, what needs you cooperate with your neighbor?
We teach kids arithmetic and geometry, but apparently only Sumerians figured it out. The fact kids can learn with guidance shouldn’t be a proxy to how trivial it was to develop this knowledge in the first place.
My first thought to this: can the turbines be made from wood instead? Searching for it, I found this:

https://newatlas.com/timbertower-wooden-wind-turbine/25007/

Making things out of wood is generally a good idea to save on carbon footprint. I have doubts you could build a nuclear power plant from timber given all the containment & shielding requirements.
I wish you all the best working on this problem, very challenging and worthwhile in my opinion. I've worked for 6 years in (mostly unautomated) chemistry and biology labs, and know how finicky experiments can be (in expected and unexpected ways...)
I for one much prefer paywalls. I'd rather be the customer than the product.
lol literally the opposite of his twitter feed in which he revels in telling people what to think and do. that's the opposite of noob mentality. pg jumped the shark.
What if the organization is one person in an LLC? Do they get rights? If so then a big company can hire a bunch of little LLCs to act as rights-having proxies for any task that requires them.
Not really, you need massive seasonal storage, like giant hydrogen cavern, or lot of methane gas holder.
For non-technical reasons, it is not always possible to self-host emails unfortunately.
We use Stripe, Braintree (just for paypal billing agreements) and Mollie for certain EU payments. Mollie we only do annual payments since they are mostly non recurring payment options.
Haskell-Like List Comprehension in JavaScript
I have a feeling this precedent makes Google happy, if not that they helped hiQ. While scraping should be legal, nobody should be preventing server owners from using any countermeasures they like
I am unable to verify this right now for the obvious reason, but facebook operates on ASN gAS32934[0]

So you can ask https://www.radb.net/ for the IP addresses that are associated with this AS and, after a quick manual sanity check, insert it into the firewall of your choice. For example:

whois -h whois.radb.net '!gAS32934'| tr ' ' "\n" | sed 's/^/saddr /'| sed 's/$/ DROP;/'

[0] https://www.facebook.com/peering/
the gc pressure is normally not so bad, but there is also more indirection in each iteration. So you iterate slower, and evict more data on your cpu caches. Whether this "matters" depends of course. Are you doing a ton of work in each step through the collection? If so, the overhead of linq will be small relative to that. How much do you care about wasting microseconds and eating more battery/power? At scale these little things add up, it can get important quick. On small devices it can be important. For a personal script running on a powerful desktop, it definitely doesn't matter, and everything in between.

My LinqFaster repo has some benchmarks showing time differences for some common operations in a fairly worst case scenario (where the work done in each iteration is small)
https://github.com/jackmott/LinqFaster

It would just be nice if C# reliably compiled this abstraction down to efficient code, the way C++, Rust, and Java Streams do.
After looking into as many engines as I could find, I chose godot for a 2D game. I don't have significant game creation experience, but I've consumed a lot of media and pay close attention. While I'm not neck deep in development, GDScript seems perfectly reasonable. Most of what it's used for is in making things that are somewhat custom/demand labor anyway. Menus, object interactions, etc. It just takes a few days of playing around with test scenes.

What I have yet to try to tackle is the C import tool. Let's say I have a grid of many objects that interact with each other. I don't necessarily want GDScript to be running the logic for 10,000 objects (an extreme number, I'd likely limit it to less, but I still like the idea of keeping performance in mind). So C is a good choice. But suddenly I have to establish and maintain a big connection between GDScript and C. Everytime a feature is added it has to be added in several places. Maybe this is just the way things are done and I should just do the work. I'm worried it is the wrong way to do it.
> Surely I'm not reading this correctly. This would seem to suggest that websites are not legally allowed to prevent bots from crawling their sites. Lots of sites have ToS preventing such things, are those legally void now? Are captchas on public pages illegal, even if you request the page 8000 times in a second?

This is just a preliminary injunction. This wasn't an actual ruling on the case. This just says that until there is a ruling they can't stop the scraping to make sure the company isn't put under while waiting for an actual ruling.
> A very significant proportion of your potential users will either keep it disabled

Then they made the conscious choice that their usage won't get known and thus be aware that another way of communication will have to be used.

> Just ask your users.

"A very significant proportion of your potential users" won't tell what they want, or won't even know what they want. The one that will be the most vocal won't necessarily be the voice of reasons either.
I want to be able to use LinkedIn to network with colleagues and people in my industry. If someone wants to scrape my profile to make a report on industry trends, I’m fine with it. What I don’t want is hiQ vacuuming up my data so they can snitch to my employer if they think I’m job hunting.

How is this a paradox? Tech — the web in particular — is supposed to be an equalizing force, but HiQ is clearly trying to give my employer more power over me. We are an industry that prides itself on solving difficult problems — how is our response here to just throw up our hands and say “it’s all or nothing”?
Ohh, la estrategia del caracol.
RIP Aaron Swartz.
> The story doens't end with the insurance company pointing to the signature and saying, "Look, there it is".

Was it? The tweet seems to be 8 months ago. This should have been resolved. Was there an update posted?
I use an iPad at my site for crane and forklift checklists with operators.
Archive of old military maps published
Closer to 6 weeks. 40 days, not 4 weeks. And for a platform that under-delivered so dramatically on its launch and who postponed so many features, being radio silent for over 2/3 of its lifespan is not a good sign.

People put down a lot of money for the right to purchase games at higher-than-normal (compared to a PC) prices. I can certainly understand the ire at the radio silence.
Maybe, but you have to sign your signature to buy a pack of gum with your credit card, which is far from serious business. (Yes, I know this requirement has gone away, but not everyone has gotten the message.)

As for the bank... they really do allow and deny checks based on looking at the signature. My problem is that I can't consistently draw a signature. Different paper/pen/surface quality throws me off. And I don't really practice... I use a pen and paper like once a month.
No worries, you're fine, just trying to clear up the confusion. I've heard both terms used interchangeably depending on context. _Usually_ as an administrator you care about what's in the tunnel, but _usually_ as a designer you're worried about how the tunnel itself is communicated, so, yeah, confusing :)
There are people in the thousand talents program in other large Chinese cities, and some of them are under investigation by US authorities too
No, not for winter heating, also shared is cheaper than privately owned.