skysight-inc/HackerNews huggingface dataset:
The hardest thing for me to grok trying to learn enough AT for TDA (but: I mean really learn, not just understand in a loose Medium-blog kind of way) was the ker/im definition of homology. I pestered people on IRC for days, and just worked hard to stretch my brain enough to see that it applies in many "small" cases.

If you're coming from topology to AT and can grok the ker/im stuff, TDA should be easy peasy to you. I flunked (I think I scraped a couple of points on appeal by sophistry and desperation so I passed, but really) real analysis, so I never moved into topology beyond skimming books to "learn about" key concepts.

You simply can't have too much math in life. I'm having a kid soon and I struggle between what seems truer to my core values (let the kid have a childhood and then personal inclinations; advise but not push; if he wants to do the gifted kid thing, yay) and what seems practical advice (learn as many human languages as you can, at least English, French and German; learn math deeply, suffering along the way).
> 50 or 60 Hz AC, especially 3-phase, makes it really easy to build and operate electric motors, too

Three-phase motors are never used in residential settings, and most residential motors would be more efficient as brushless DC. There's no need for sinusoidal AC motors any more except in specialized industrial applications.
I'll call Dave at the Food Standards Agency, he'll get your internet history. Crimes against food.
You should add Ask HN to the title, and still I think your question may be better posted at stackoverfow or similar places rather than this forum.
“Netflix is trying to crack down on ineligible users, though it is unclear how many people use the platform against their terms of service.”

It’s soooo many people. Sometimes it’s pseudo-household sharing, such as my parents and my sister’s family that lives five miles away. Sometimes it’s folks that have agreed to share the cost of multiple streaming services (you pay for Hulu, I’ll pay for Netflix, Bob will pay for Disney). Sometimes it’s folks that bought an account login from a shady website. But the activity is pervasive. I’d be willing to bet that over half of Netflix accounts have given access to someone outside their household. And when you consider that sharing your account increases the number of users, I’d say that most of Netflix’s users are in violation of the ToS.
1) macs are not entry level, entry level is a 350$ laptop mounting an i3

2) it doesn't matter unless you work with the laptop sitting on the bare skin of your legs

EDIT:

sorry!

forgot the basic rules: don't dismiss bitcoins, don't engage with Apple users.

My fault.
This article is quite interesting

https://www.politico.eu/article/cryptophone-firm-dismisses-b...

Sky ECC denies the breach (see also [0]):

> "a fake phishing application falsely branded as Sky ECC was illegally created, modified and side-loaded onto unsecure devices"

The belgian police claims:

> Sky ECC's claims were "bullshit."

> So confident were the police that they broke Sky ECC's code, they said they sent the firm their bank account details to claim a $5 million (€4.2 million) bug bounty Sky ECC promised to pay out to security researchers that had managed it.

Quite ballsy.

> “The work is only starting,” a spokesperson for the Belgian judicial police had said Tuesday, adding that many more investigations were likely to follow as the decrypted messages yielded more leads.

I don't see why they'd give those criminals this notice to prepare. I'd assume a bunch of surprise house-visits would be more effective, if they have all this info.

The story smells somewhat fishy from both ends. Good drama though. If they really breached Sky ECC's security, they should be able to prove this by solving a cryptographic challenge by them.

[0] https://www.skyecc.com/sky-ecc-platform-remains-secure-and-n...
It's handing out heroin to anyone who wants it rather than handing out clean needles.
And better infrastrucure. If theres a need for NFTs then just do it on a already PoS blockchain like tezos. The migration should not be that much of a deal. Infrastructure and community is there. Tools which would help to migrate smart contracts also. I think it is really the lack of knowledge, that there is a blockchain solving the actual problem.
Reposting someone's art on Twitter/IG/whatever is a bit different to literally selling someone else's art though, isn't it?
Electricity prices?
When was the last time you read about the BNP or Combat18? UKIP has gone. Where is the political party that is far right?
Chores around a house are an educational tool and may be considered beneficial. On a farm, you get lots of additional "chores" on top. Where the "chores" are hard labour, often dangerous, at times early in the morning before school and in an amount where you do replace paid workers. A household does work without a child doing chores. A family farm won't be profitable without the free labour from the children. There is a reason farming families do have a larger number of children compared to the average. And while, yes, it has been this way for millenia, times change. If it weren't on a farm, with the same amount of "chores", child protection would get involved in an instant.
Globen doesn't mean the sun in Swedish. It's just The Sphere. But yes, I had no idea about this.
Art collection is often not about the art itself. NFTs function like traditional art purchases ACTUALLY do: as proof of support for an artist and their expression.
> The magic trick: universal masking.

Maybe we wouldn't need lockdowns if everyone did wear their masks properly, so many COVID deniers out there.
Artist making a fair living sell their art, this selling of NFTs is not them selling their art, they are selling an immaterial bragging right. It's insane.
Yes. High-power residential loads like heaters would still work best on AC because HVAC is safer than HVDC.
That'd definitely be an improvement, but you still have backdoors on your CPU brought to you by Intel(tm).
Yeah, most is probably an overstatement. I know for me, between photos, videos, music, VM images, etc. I have way more than 1TB of data that I want to be backed up.
We were on holiday in France skiing for a week once and the hotel dinner included 4 different local cheeses each night - none were repeated of the course of a week.

It wasn't exactly a smart hotel (2* I think) but the food was sublime.
This works with VPN's as well: I thought about finding 5 people to split a VPN sub with, because I only would ever use one device at a time. That brings it down to ~$1.19/mo which is a great deal.

problem is coordinating that with everyone lol, probably best for each person to pay $15 up front to one person to essentially prepay for a year.
There are many GUI frontends for GnuPG, if that's useful to someone:

https://www.gnupg.org/software/frontends.html
Yep. And then you end up with hunched phone zombies almost getting run-over crossing a street because they can't quit looking at the next Tinder. When they finally do meet, they lack the social skills to do anything, and just camp on their phones like that Bansky work.

https://i.ebayimg.com/images/i/262026482406-0-1/s-l1000.jpg

ProTip: if any humans manage to gather in large quantities in the future, all phones go into an unplugged microwave.
I'm really sorry to hear that happened to you here. All these 'free speech' threads seem to attract the most toxic HN users.
I think it's a bit more complicated, since the extinguishing system is intended to be used in emergencies.

The usual system, e.g. in a train maintenance depot:

- Employee is going to work underneath the train, which therefore must not be moved. He isolates the power supply, and locks this isolation with his padlock.

A situation in which it's suddenly very important to reconnect the power is extremely unlikely. If the employee forgets to remove his padlock, it's disruptive but not dangerous. (I've seen this system once, and when people left for the day they were supposed to lock their padlocks on a special board as part of clocking out.)

For the datacentre, if the fire alarm goes off, everyone is supposed to leave by the nearest exit -- not go back the way they came in, unlocking their padlocks to allow the extinguishing system to be used.
From skimming the datasheet, it looks like a fairly bad product. Sure the A register is extended to 32 bits, but the 8 bit data bus means that it's not going to be much faster than the 65816 and the address bus is still 24 bits. I have no clue why WDC decided to keep the same pinout as the 65816.
Open, Decentralized, Identity Ecosystem (2019)
That's what boost/buck power electronics are for.
Ask HN: Laptop as a Thin Client?
For the last 6 months, I have been using a linux desktop to do all my web development (multiple browsers managed by i3, we pack compilations, vim, and all the silly electron apps like vscode and slack). It has been excellent, especially compared to my frustrating experience with my 2015 macbook pro (I swear every update makes it slower).

However, I have some upcoming changes in life which will dictate using some form of laptop an hour or two a day on my local network and three or so days a month from the road ( with a slow 2mbit up/down connection ).

I dread thinking of going back to the macbook for this. It's a 16" and super heavy, and the battery will hardly last 2 hours of zoom calls, much less running chrome and ff at the same time for webdev.

Do you have recommendations on hardware and software to fill these gaps? Do I have to invest in a beefy laptop with a large battery or can I get away with some sort of rdp? What do you use personally?

Thanks!
> The same argument has been heard from Trump and his followers. Stolen votes, manipulated people.

I wasn't complaining about stolen votes. Nobody was suggesting election fraud had happened with the EU referendum.

Manipulated people, sure. But there is evidence of that with many of the claims made during the campaigns being proven false (like the Brexit bus slogan and like many of the ads reported here: https://www.bbc.co.uk/news/uk-politics-44966969). There is actually a lot of documented evidence about the misinformation that happened during the referendum on both sides of the debate (https://constitution-unit.com/2016/08/23/fact-checking-and-t...) but it didn't seem to make any difference because you'd often see the same FUD repeated (both for and against Europe) when chatting to people -- be it social media, TV/Radio call in shows or regular face to face conversations with family and friends, etc.

The question of our EU membership was such a complex one that even many experts were littering their statements with caveats and disclaimers. So it wasn't really a topic I'd have expected the layperson to be informed enough to make a good judgement of. And the targeted ads on platforms like Facebook, plus the aforementioned deliberate misinformation campaigns did little to help the situation. So I do think it's fair to call out the result of the referendum as being within a margin of error.

I do agree there have been parallels between the EU referendum and Trump's campaigns (both of them in fact). But you also do need to be careful not to dismiss the credible claims of bad practice because some egotistical oaf also happened to make wild made up claims too. There's definitely a sliding scale of misinformation where some items aren't technically inaccurate but are worded in a way that intentionally misinforms the reader (a practice often seen in click-bait headlines) but on the other end of the scale you'd have statements that are very clearly bullshit (like the Hillary child sex ring "scandal").

It's fair to say the last 5 years has been a real low point for my trust in the democratic process.

> What we need is respect for democracy.

I agree but that respect has to be earned from the campaigners rather than blindly given by the voters.
Messengers are not per se insecure.
Sending via Matrix should be fine as well - why use another tool?
What’s the business model for transfer.sh? It looks like a free service that hosts your files on their servers temporarily. That sounds like a variant on the image hosting problem, where it’s unsustainable if it gets popular. You also have to trust them with your encrypted data.

The nice thing about magic wormhole is that the hosted service only provides NAT busting / initial connection set up. Yes, this means you have to do direct, real time transfers, but it’s also much more secure and cheaper for the bridge host.
Publictext: Ucspi-TCP text://protocol server
In a world where people increasingly share one or two line console text output as screenshots, you are bothered by three extra characters being character spam? :)

I see it as a harmless thing.
Photopea is made by a single developer.

https://blog.photopea.com/creating-photopea.html
The two aren't mutually exclusive. Power is simply the capacity to influence the behavior of others, and in a democracy, it is leveraged to get anything done.
>We don't encrypt because the network is physically separate from attackers.

Given the existence in modern vehicles of:

- a shared bus for communication amongst the processing units

- autonomous emergency braking being fairly standard

and

- network connectivity being available in some cases

I think your analogy might be outdated.
I'm curious why electricity is so cheap there. If it's caused by subsidies, the alternative is obviously replacing the subsidies by income transfers. If it's not caused by subsidies, there must be a better way to profit from their competitive advantage of being able to produce electricity cheaper than anyone else in the world.
The thermal load matters for battery consumption.
Why can't we have this as a general interface in standard libraries? For example, we could have a contextual allocation function:

// Contiguous array of 1024 objects of type
context = contextual_allocation(1024, sizeof type);

// obtain pointer to next free object
object = allocate(context);
Great App!

Just purchased 2 copies cause I am lazy building it from source & cause charity, why not!

Tested the demo about 1 hour ago and I was impressed. Very good UI and fast scanning, although on the icons are a bit on the small size for my taste but excellent otherwise.

Keep up the great job :)
Can we travel to the past? Irreversible physics along closed timelike curves
Please grab two terminals of a -48v system and repeat that statement.
Database by the Federal Reserve Bank of St Louis with 700k+ economic time series
Marfa is a delightful place, but if Judd had never set-up shop down there, it would be yet another West Texas ghost-town today.

There's something special about the spareness of the landscape and Judd's works in them. It makes the touristy aspects of Marfa tolerable to an extent.
It's decentralized. For example, the exact same service exists at https://skysend.hns.skyportal.xyz, which is operated by a completely unrelated party. Links created on one will work on the other.

And you can run your own portal, code and instructions here: https://github.com/NebulousLabs/skynet-webportal (roughly a weekend of work to set one up at this point)
But is it reasonable to call that its most essential form when that form is so anatomically wrong?

In other words, if a chair so badly fits most humans, should it be called a chair? A sphere can be used as a chair, and it is even simpler or more pure design-wise, but we don’t call it a chair.
I'm mildly glad to discover they found some good real uses of crypto..
Much of the delay that the EU experienced can be attributed to the stricter scrutiny and liability conditions it applied to the vaccines, and the fact that the UK paid more per dose in order to jump to the front of the queue.

If anything, this vindicates the Remainers who claimed that the UK government would become more deregulated and more beholden to corrupt interests.

The EU was faced with an almost impossible set of constraints, either leaving the poorer countries to fend for themselves (and being portrayed as not caring about its ideals of unity and equality), or forcing the richer countries to vastly overpay for the doses of the poorer countries (and being portrayed as a wasteful drain on successful economies).

Of course, it is in the interests of rich countries to help people in poor countries get vaccinated so that they don't become breeding grounds for new variants, especially if those countries have important trade links and free movement with said rich countries, but unfortunately people can get quite selfish during a crisis and not see the bigger picture. This is why we can't have nice things.
Pah, respiration by definition requires a cycle. Can't be in one direction.
How is two houses using same login “pseudo-household sharing”?
I don't think so. Anyone who's buying this stolen art and finds out about it understands that they got scammed because it didn't come from the original artist.

It may feel worse to the artist because they can see someone making money off their work more directly rather than through ads such as how it happens on YouTube for instance, but it doesn't decrease the value of their art if they were to sell it themselves.
It might make NFT fans feel better to imagine their detractors getting around in an SUV, but I think you’d find that a lot of us are anti-SUV (both aesthetically and in favor of different incentives around fuel consumption) as well.
It's almost like a parody of private property ownership.

As when you think about it, what gives some rich aristocrats the right to own all the land? It's not as though God Himself came down and gave it to them (though they used to claim this with Divine Right) - they just have some piece of paper which they use to enforce their "ownership" with violence, and demand rent.

I hope at least the absurdity of NFTs might make more people see the absurdity of privately claiming the Earth's land and resources too.
Also means you need multiple different forms of identity, at least based on my previous experiences with the UK banking and real estate systems.

It’s not even amazingly secure. A few years ago a TV news investigator managed to get a provisional driving license in the name of the blind then-Home Secretary, David Blunkett.
It is extremely common for anti virus software to label newly compiled executables as false positives. They use a bunch of heuristics and tune in favor of distrusting new executables they haven't seen before.
A look at the future state of CSS selectors
So the really hard right is diminished, but that's arguably because the pretty hard right took on its rhetoric on immigration and is currently in power.
They can't. You only need around 1mb/minute bandwidth to be able to operate. Changing ports can be easily circumvented by using a proxy. It's much easier to detect the guy who is drawing all this electricity.
I have the same question. I am logged in FF extension and see no link to use this. To open web vault is too time consuming and clunky
Because you don't use Matrix?

Because the person you're sharing with doesn't use Matrix?
> But that is exactly my point. All over this thread you have people suggesting that this is a completely solved issue, the science is settled, and the experts agree. Therefore, shut up and think as you’re told.

Ah yes, I see what you mean, I am definitely not one to agree with that.

For one to say that a science as vague and muddy as psychiatry can be so “solved” is quite an audacious statement, — much of it is indeed semantics, classification, and social perception changing over time and how much the psychiatrist likes the patient on a personal level will no doubt play a significant influence in how much he will recommend that the latter transition or not.

> Whether or not the claims are true is irrelevant. The fact that we’re now in a position where voicing the tiniest bit of dissent over this issue is enough to relegate you to the “clueless bigot” bin, or maybe even qualify as “hate speech”, is where the real problem lies. Imagine if we did that back when lobotomy was settled science and had expert consensus.

I have not seen any such responses in this particular train of discussion, however.

Amazon would perhaps be so inclined, yes.

> Nothing, no single human idea, is above criticism and pushback.

I find that formally verified mathematical proofs are rather hard to disprove in practice.

If a man claim he has found an error in one of them, I would dismiss it out of hand, unless it come with a show of a bug in the proof assistant or hardware.
48VDC at 20A is more than enough for most loads in a home (960W) and 12 gauge wire (standard in many homes) will handle that just fine. Auto battery cables are thick because they have to supply hundreds of amps at 12V. Different situation.
This gives brutalism a more direct representation.
"This crypto experiment keeps yielding more interesting results."

I completely agree. I don't pay attention to a lot (or any) online economic circles, but I'm astounded at the pushback of high profile economists (Krugman, et al) against the shear novelty of the moment for their discipline.

Regardless of whether or not someone "believes" in bitcoin, the reality of the times is that cryptocurrencies are creating fantastically interesting economic experiemnts right under our noses. This seems like it would be the dream come true for an economist from an observational/curiosity perspective
> only a couple went to the extent of attempting to prohibit their own citizens from leaving

OK then, but the UK is currently one of those places. Without good reason it's currently prohibited.

ANd I honestly don't have a problem with it, we're in the midst of a pandemic. :shrug:
How to Find the Best Locations for Photoshoots
When Trump was first elected, the Democrats were calling foul play and blamed Russian influences saying it wasn't a valid election.
Complaining that NFTs don't prevent art theft is like complaining that my physical dollar bills don't prevent muggings. Ultimately, it's up to policies and mechanisms on the level of the action to prevent that action. Moderators have to strike illicit goods; collectors have to recognize the authenticity or inauthenticity of provenance; viewers have to observe and respect that a forged, unauthorized piece is valueless, regardless of the resemblance to the original. The computer doesn't care, nor should it.
Oh no, I'm fully onboard the "this is dumb" train.
I'm a fan of standup comics and love when comics in podcasts (like Rogan and whatnot) start ranting about "clean comedy", which means "not using the bad words".

But: every comment in this thread that uses a bad word is at best misguided, while comments without bad words are informative and keep the general mood in check.

I know people tend to bypass word filters by occluding letters ("B*rcelona") while retaining meaning; but maybe a word filter would cut dang's work by $A_LOT %.
Answered below but there is a difference between a full time job and doing chores around a farm.

If you can't see the nuance in that then I suggest you visit a family farm some day.
https://latacora.micro.blog/2019/07/16/the-pgp-problem.html Is a pretty good tear down of pgp. It doesn’t sound like pgp can be made more usable.
Best Practices to Create Blogs That Drive Conversion