skysight-inc/HackerNews huggingface dataset:
"Market maker" refers to a "role" in a market. HFT is simply one way that role is fulfilled, in some markets (equities, futures, ...) but perhaps not others (corporate bonds, MBS, ...). No market needs HFTs to provide the service, but they exist because in those markets they provide a monumentally better (cheaper) service than their predecessors.
Biden could simply do what politicians usually do when taking a stance on a matter is inconvenient for them: simply ignore it. Talk about other things when asked about it. This seems to work well for politicians, so I don't see a dilemma.
EDIT: Found it in the changelog. This feature was added in Rust 0.8 (2013-09-26) "Explicit enum discriminants may be given as uints as in enum E { V = 0u }" https://github.com/rust-lang/rust/blob/master/RELEASES.md#ve...

They're referenced as a pre-existing feature in this Jan 2015 RFC [0], so they predate Rust 1.0. I don't know quite how old they are, but I suspect much older than that as this feature is necessary for interfacing with C which has been a high priority for Rust for a long time (particularly driven by the needs of the Servo project in the early years).

[0]: https://rust-lang.github.io/rfcs/0639-discriminant-intrinsic...
Free CDN does not cost anything compared to other solutions owned/payed be me.
Mountain biking is super popular now in Ontario. The local trails are way busier, and bike shops are low on parts and bikes. Everything in the midrange (3k or so) is pretty well sold out.
One of the reasons people use bikes during the pandemic is to avoid public transport. When the bike option doesn't become available, it will push a lot of people to cars.

And once you have a car, it's often a lot more convenient than a bike, because you don't end up all sweaty at the end of the day.
.com and .net have always been all but .us. Since .us didn't exist when the web was created
Clearly all these tweets are fake and added by Twitter who are part of the conspiracy to make people believe the Earth isn't flat. /s
Future political generations abusing nuclear power for their own goals is something I hadn't yet considered.

Potentially extremely dangerous.
Hydrogen underground, not LNG, but yeah.

For some simulations to help answer when those two options are best:

https://model.energy/
But the idea would be that no one except the central coordinating marketmaker (?) would see all the bids and asks until the time of final execution at the end of the 1 second.
I'm really curious to see how far this could go. Seeing the homelessness issues in SF and LA makes me wonder if they tipped the balance of those cities being uninhabitable by such a large percentage of their inhabitants that the are going to need to majorly restructured to make it back to a stable equilibrium.

Like if the wealthy tax base flees en Massé to go work remotely by a lake somwhere, in a self perpetuating way, these cities could turn into giant insolvent hoovervilles. Maybe that's a bit extreme but it seems possible.
No- it would not work. exchanges and brokerages care about order of arrival rather than transmission, and for good reason. Anything else would be more complicated and much more open to gaming (the resimulation bit you propose would involve effectively cancelling the last transactions, probably quite frequently, and a huge incentive for at least B and probably C to have ‘inaccurate’ timestamps to get the trade they way at someone else’s expense)
I disagree completely. It’s perfectly good enough for non-specialized use cases, which is exactly right for a stdlib offering. For anything else, factor it out as separate third party options (even if maintained by PSF itself) so users only install what they need for their special application.

One person may install something that’s blazingly fast. Someone else may install something because it can convert the data to an in memory parquet format, someone else may use something that can virtualize SQL queries over top of disk-backed csvs.

They should all be different for the nuance of each application.
I live in Canada in a bike friendly city but I dread having to bike through the US-style suburbs for many reasons:

- 3-4 lane boulevards where motorists drive at 60-70km/h and pass close to you;

- giant malls where cars turn into and out of parking lots without paying too much attention;

- lots of right turn only lanes that force you to stay on the middle lane between two lanes of cars (which makes some motorists very angry) or to stay close to the curb and cross with the pedestrians (which forces you to get on the sidewalk, disembark to hit the button and wait 1-2 minutes at _every_ intersection);

- intersections where cars can turn right on a red light;

- motorists not being used to driving around cyclists;
https://archive.is/QEm2D
As someone else mentioned, there's a legal maximum, and I think a company is also held to their quoted timeframe (and they may be required to quote a timeframe as well).

Additionally, having a delay can be useful to make it harder for someone to take over your account, and grab all your data; especially if there's sensitive data that might not be otherwise accessible or enumeratable through the UI or API.
Where I live, the local roads are paid for by property taxes. County and state roads are funded by a mixture of tax sources, and bikes are forbidden on expressways.

But money is fungible, meaning it's hard to pin down what money is used for what. A lot of what consumes road funding is the damage to roads caused by heavy trucking. Also, cyclists largely avoid roads that carry a lot of motor vehicle traffic.
The AMD Radeon Graphics Driver Makes Up Roughly 10.5% of the Linux Kernel
Thousands of D.C. Renters Evicted Every Year. Do They Know to Show Up to Court?
I think the problem is mostly cognitive. The codebase should be viewed as the most important investment that a software company could ever hope to possess.

Within the codebase, the infrastructure and tooling is by far the most important aspect in terms of productivity and stability of daily work process.

If you take the time to position yourself accordingly, you can make the leverage (i.e. software that builds the software) work in virtually any way you'd like for it to. If it doesn't feel like you are cheating at the game, you probably didn't dream big enough on the tooling and process. Jenkins, Docker, Kubernetes, GitHub Actions, et. al. are not the pinnacle of software engineering by a long shot.
There is human-relevant information being traded and relevant on a microsecond timescale?
Nope, I'm pretty sure that was taken directly from Henry Ford's playbook. Cars at one time were basically only sold in black. But the theory is the same as with the iphone and Tesla: If you are the wanted thing of the time, you don't have to offer so much. Luckily, there are a lot more choices - but I might have a skewed opinion on the choices. I'm in Norway, and electric vehicles are everywhere here (and the infrastructure is growing at a fast pace as well).

Folks can always get an aftermarket paint job if they want, though.
Where is the music being sourced from? As a music creator, how can I add my music to be visible here?
Another question (which contradicts my first question):
Aren't you helping to create another "race to the bottom" where free music always wins over paid?
> Yes, I have cherry picked 100% of the current era new nuclear construction projects in France and the US. How selective of me! /s

Yup, precisely. You've conveniently ignored successful projects elsewhere, like the Hanul nuclear power plant and the Taishan nuclear plant. Also, you're incorrect that Votgle is the only nuclear project in the US, Turkey Point is installing two more AP1000 reactors.

> It includes such things as instrumentation, enrichment, fuel fabrication, and (most importantly) manpower and expertise.

Enrichment is not a substantial portion of nuclear power's cost. Almost all of it is in construction and fabrication of the plant. I'm also not sure why you think building a nuclear warhead translates into running a nuclear plant. A nuclear weapons designer wants a very violent runaway nuclear reaction. This is what a nuclear plant designer wants to avoid.

Nuclear power and nuclear weapons don't use the same fuel. That's not quite true with recent plants: a few of the newer nuclear plants can mix in some weapons-grade plutonium - but the mix is still mostly uranium. This more about dismantling plutonium, as it's the only way we know how to get ride of weapons-grade fissile material - well, besides detonating the nuclear weapon.

> Investments are made on expected payoff. The expectation that renewables will do well is high. The off chance that they do not, oh well! Nuclear could be a backup in that case. There is no need to pump trillions into nuclear now to restore your putative golden age.

You continue to miss the point. With renewables and storage, we're talking in terms of hypothetical costs. What we think it will cost. Projected costs are cheap, because by definition they exclude the costs of unforeseen issues. Historical costs do include the costs of unforeseen issues that emerged in implementation.

Nuclear costs are historical costs. We know what nuclear costs, because we've built it before. And we've built it at scale.

The cost of proposed storage technologies are hypothetical costs. Nobody has built a 1TWh storage facility, let alone a 10 TWh storage facility. We can make educated guesses at what this will cost, but they're still guesses. We'll only know the real cost after it's been built. And projected costs are almost always optimistic.

Comparing historical costs to projected costs is comparing apples to oranges.

> (I'd actually put carbon capture over nuclear as the backup plan. Nuclear would be the backup to the backup.)

You seem to be particularly determined to avoid the one solution that is actually proven to work.

1. https://pv-magazine-usa.com/2018/03/01/12-hours-energy-stora....
VS Code now officially supports Raspberry Pi
> because I have an OS to write

That sounds awesome. Personal project or commissioned?
I want to like Cappuccino. Like, really want to—Atlas was really cool, and I check in on Cappuccino a couple or three times a year and was even poking at it last night to see how smooth their bootstrap.sh script is, and I marvel at what we've lost when I compare how the early 2010s were looking compared to where things are now.

Aside from Objective-J, though, Cappuccino has performance problems. Every time I try the demos, there's so much jank, even though our hardware and browser engines are a lot better than they were in Cappuccino's original heyday years ago.

It's also at risk of being in questionable legal status depending on the Supreme Court's ruling in Google v. Oracle.

One of the cruxes of that post also stands out to me:

> Your day job is to build a piece of web software and you can’t take a few days to learn the ins and outs? [...] I’ve seen this reaction many times in the web culture. This mentality is pretty rare in the world of native development though. Almost every decent developer I know has no problem spending a weekend learning some new and cool tool, but sadly, this spirit seems to be absent from the web culture.

Looking at the state of tooling in the post-narwhal NodeJS era, the "web culture" has now "caught up" on this side of things, but unfortunately, that's not a good thing. This is another example of the deprogression we've seen. Webdevs had it right the first time on this one. It should not cost a whole several days to get started. The attitude that it should is pretty antithetical to the original value proposition behind Objective-C and Cocoa, in fact.
Captcha Solving Service
For the love of god stay inside
I honestly don't know much about Apple/Android implementations of QR code readers... Is there any fundamental issue with using one of these things to share a link to a menu or something? Many restaurants are trying to avoid menus it seems (which makes sense) and I could see a QR code making this easier for people.

I don't like the idea that my OS/browser history basically knows everything about me, but I don't really see how visiting a menu is a serious problem, given that the same systems also generally have my location data too... Is the concern that people who visit restaurants are much more likely to be spreaders of COVID? Could just looking at a menu (implying visiting the restaurant) be enough to implicate me of something?

I'm just left wondering in all this mess. Who watches the watchmen?
I realize you're just being enthusiastic, but please don't use visual gimmicks in HN comments. Those are supposed to be text.
Which is of course the problem. While some people are complaining about "technically incompetent" comments the political reality is that one of the primary motivations for the original Internet was a tool for avoiding government censorship.

The phrase used to be "The Internet perceives censorship as damage and routes around it." Now it seems any censorship is fine as long as it's nationalist enough. And if by a quirk of history the US happens to control the domains with the widest reach - well, so it goes, never mind, and let's wave a flag.

The inevitable outcome will be a Balkanised Internet, with each sphere of influence monitoring and controlling its local content.

This has happened formally in China and Russia (and elsewhere) and has been happening informally in the US and EU.

Perhaps the requirements of realpolitik justify this - and perhaps they don't. It's not a simple question with a simple answer.

So it's a debate worth having - not on the basis of TLD ownership, but on the basis of international civics and the ever-decreasing free movement of information which is not corporate or government-controlled, online and elsewhere, in all spheres of interest.
Cloudflare famously charges $0/GB, with some arbitrary restrictions on the way you use their service, and I’ve heard rumors of soft limits on the total amount of bandwidth you can use before they email you to upgrade to a higher plan.

I’ve never used BunnyCDN, but they charge a flat $0.01/GB for North American traffic, and I’ve heard some good things about them.

DigitalOcean, Vultr, Linode, and some other cloud providers charge $0.01/GB without a CDN, just using their regular servers, but obviously a CDN is more than just a way to save money — it’s a way to lower latency and improve user experience.

The mega clouds (AWS, Azure, and GCP) seem to significantly over-charge for egress bandwidth as a nice profit mechanism, just because they can.

My unpopular opinion is that mega clouds are overrated. They’re fine, but they have a lot of weird gotchas that most people have just accepted as “how the cloud works.”
It's obviously not a technical problem. The 30 days comes from the GDPR legislation. Spotify is just behaving like an obnoxious child that needs a good smackdown from the EU. Howevever the GDPR also stipulates that this needs to happen without "undue delay".

I'm not a lawyer specializing in EU law, but I think this wording was put there for the precise reason of being able to punish companies that behave like that.

They'll get to them eventually.
I am curious about your case is the traffic mostly read heavy? Ha wish you could share more. Interesting stuff.
In 2005, I went and bought a $400 19" LCD.

In 2006, I pawned it off on the family and bought a $65 21" Sun-branded Trinitron CRT. Used it for a couple years then sold it to a co-worker for $25.

It wasn't til 24" 1920x1200 LCDs became available that I felt like there was a wild improvement over a CRT. Yeah, the FW900 would be the same story, but you never saw those for sale locally.
Like Growing Fruits: The Reality of Multi-Tenancy
Do you think the judge's case is not plausible? Cops are not superheroes, they're simply (often undertrained) civilians who happen to be wearing a uniform. They want to go home, too. Without teargas what type enforcement mechanism are they expected to use against an increasingly belligerent public? My guess is that it won't be their batons or bare fists; it will probably be their guns, which increases tensions on both sides.
India is notorious for enforcing blanket bans on internet services especially in Kashmir. Also they are cracking down on online dissent with people being arrested for social media posts under Anti Terrorism Laws.
Your entire argument rests on the premise that somehow governments cannot do multiple things at once. However, part of the responsibility of the government is to always exist to serve and protect the people.

That need does not abate merely because the president is a fascist. He already marks himself clearly by positioning himself as diametrically opposite antifascism. No amount of propaganda can disguise that fact. And further, we know from history that appeasement does not work on fascists; we cannot merely sit back and let him have his way now while we plan for a future where he has mysteriously vanished.

The mere existence of Portland is offensive to their political ends; it frustrates them that people might want a better society, and vote thusly. Good! Let them be frustrated; we have no obligation to be nice or pleasant to fascists. I will enjoy seeing them cry when we elect a female antifa mayor soon.
If curious see also

2018 https://news.ycombinator.com/item?id=17772529

2017 https://news.ycombinator.com/item?id=15998650
Front-running usually refers to a fairly specific scenario in which a brokerage or fiduciary executes orders as principal prior to dealing on behalf of their client so as to benefit from a market movement they anticipate will be caused by the client's orders.

This is categorically not what HFT firms are doing.
Machiavelli: Whatever It Takes
Does Apple actually offer any of the services Spotify is banning via ToS? This feels like both companies are clearly in the wrong for engaging in the same sort of bad behavior.
Yes, OPs comment is especially hilarious when you consider that when the US government wants to engage in actual propaganda they will use the NY Times.
Most experiments are only valid within the context of a model. Calculating X-ray diffraction patterns only matter because of how we model orbitals and light diffraction for example.
> the guy

You mean planejane9?
You can't compare the S&P 500 with a fund that, at age 50, would hold 25% in bonds. Of course the TDF will lose.

The function of gradually transitioning to bonds is to hedge against inflation, lock in profits, and buffer against market volatility. Those are useless for someone just starting out in their 20s — which is why TDFs start out with very little bonds — but important to someone whose time horizon is just 15 years. Someone at age 50 should be extremely careful about holding just the S&P.

Also, keep in mind that the equity portion of Vanguard's TDFs are 60/40 US/international, because that's what Vanguard thinks gives you best diversification [1]. Depending on the time period you measure, international does either better or worse than the US [2].

You may be interested in reading about Vanguard's target date fund philosophy. [3]

[1] https://www.vanguard.com/pdf/ISGGEB.pdf

[2] https://www.fidelity.com/viewpoints/investing-ideas/internat...

[3] https://personal.vanguard.com/pdf/ISGTDF.pdf
Polling place intimidation State Fact Sheets
If nuclear is so safe then why the subsidized insurance? https://en.wikipedia.org/wiki/Price%E2%80%93Anderson_Nuclear...
> I think this misses the real reason. High capital costs are no barrier to private financing as long as the eventual profits will accrue to the investors.

What about the risk premiums for disasters. Isn't it only economical if states accept the cost? If we wouldn't accept an owner of a nuclear power plant to go bankrupt before cleaning up ,after a Fukushima scale accident they'd be forced to either have an insurance that made it uneconomical, or deposit many times more than the reactor costs up front, for cleanup. Neither is viable. It's always subsidized.
Yes it is.

Do you think democracy and freedom comes out of nothing? Check the french revolution, history of the UK and other democracies. There is always blood before things go back to be better.
Sometimes it's just boring industrial noise pollution. https://www.npr.org/2020/08/04/898853311/it-took-a-pandemic-...
It's probably a reasonable thing to discuss but it's on an entirely different scale than cryptocurrencies. One single bitcoin transaction currently consumes about 210kwh, so about 20 days worth of energy use of an entire American household.

With some napkin maths I'd say a laptop maybe uses 150 kwh a year. Google seems to suggest a heavily used machine draws about 30% more power than an idling one, so over a year your laptop going ham is still only a fraction of a single bitcoin transaction.
Every other language runtime has a standard library, it's always been a shortcoming of the web IMO
Well, which one is broken depends on your viewpoint, and the exact use case.

Another way to look at it is the difference between exercise 4 and 5 here:

https://mywiki.wooledge.org/BashFAQ/105

So taking that concrete example

test -d nosuchdir && echo "warning: no directory";

instead of

false && true

You didn't want the function to fail. You just wanted to print a warning if the directory doesn't exist. But the whole function fails, while it doesn't for the if statement.

The whole thing is inherently confusing ... The language confuses success/failure and true/false. Both of those are stuffed into an exit code.

test -d is really for true/false, but then functions also have success/failure (did the last command succeed).

So there's no way for shell to really know what you want.

I think Oil might end up with something like "if catch foo" for success/fail, and "if boolean grep" for true/false.
It definitely is a thing; see my reply above. It's the engines. I was able to experimentally connect /one/ source of hum to tug boats specifically. Interestingly, though, the huge container ships that passed by did not make an audible noise.

One unfortunate effect of the name "the hum" is it kind of implies a single source. Realistically, it's probably a whole collection of sources, including some real physical phenomena, and some tinnitus-like audio hallucinations.
> 2. I don't entirely follow this point. Perhaps using PyArrow's parser would be faster than what is timed here, but is that what the typical Python data science user would do?

I am a Python data science user. If data gets big enough such that loading time is a bottleneck, I use parquet files instead of CSV, and PyArrow to load them into pandas. It’s a one line change. The creator of Pandas is now leading the Arrow project. It’s very seamless. Don’t know if I’m typical but that’s me.
Yes, but... chances are your backend dev will have a system-provided or just plain outdated Node version so they'll get a cryptic exception and will have to reach for assistance.

Ideally you would have a pipeline building the project on each branch commit so that the backend dev can push, wait 5 min, fetch the artifacts for that branch and run it locally to test it. Or even better - if there's a pipeline chances are there's a Dockerfile doing the build but it will not support live-reload.

Either ways it gets complex as soon as you have to get out of your comfort zone. Especially if the docs are outdated/verbose/non-existent.
> Is this (C-style enums) new?

No.

> I swear I looked for it a year or two back, found questions about it, with the answers "use constants".

Possibly because they were asked / answered in the context of bit flags?

Even degenerate, rust enums are not compatible with C enums because they're still type-safe, you can't create any random value and say "that's a Foo", that'd be UB. So if you want bitflags, you need to use constants.
Ruby: The not so good parts
They specifically cited nuclear. I don't think operating it at 10% capacity factor is what they mean.
Advertising. Advertising companies (one of which would be Google Ads) would pay them for access to add displayed on Search.