skysight-inc/HackerNews huggingface dataset:
Non-accredited investors do not sponsor SPACs. Sure, they can get in after the SPAC goes public (since it's publicly traded just like every other public company), but I see this as a way for retail investors to get in on sorta-IPOs if they want to (which they otherwise cannot do).

If people are investing in random companies they heard about on Twitter or RobinHood's trending list, whether it's a SPAC or company that went public in the traditional manner doesn't matter much. But if people actually do their homework and do at least some cursory research into the companies they invest in[0], then SPACs give them an option they didn't really have before[1], that they might want to make an educated bet on. Or not! It's up to them.

[0] Hell, most people (myself included) shouldn't even be investing in individual companies, at least not without money they are fully prepared to lose (or at best just grow slower than inflation).

[1] Well, SPACs aren't new, so they had that option for a long time, but they weren't quite as popular as they are now, so there's more variety.
I'll let @mliben comment on the motor questions.

The motor inductance is relatively low so we're running a high switching frequency (40-60kHz) to maintain reasonable phase current ripple. No output filter is used. Also, our phase busbars are very short so we don't run into the transmission line effects you typically see with fast switching SiC/GaN and phase cables.

We are looking into some advanced modulation schemes and switching topologies to reduce CM bearing current. Also looking into hybrid bearings with ceramic balls. This is definitely an area of active research, but we are trying to get away from a CM input filter as they can be bulky and heavy.

Right now, we are using 1200V SiC MOSFETs.
Λατσιο vs. Μπαγερν Μοναχου, απέναντι στους κατόχους οι Ιταλοί
Η Λάτσιο θα αναμετρηθεί με την Μπάγερν Μονάχου στο Στάδιο Ολίμπικο την Τρίτη στην πρώτη αναμέτρηση της φάσης των 16 για το ζευγάρι στο Champions League. Η Λάτσιο τερμάτισε δεύτερη πίσω από την Μπορούσια Ντόρτμουντ στον έκτο όμιλο για να προκριθεί στα νοκ-άουτ για πρώτη φορά από το 2000, με την πρωταθλήτρια Μπάγερν Μονάχου να τερματίζει άνετα στον όμιλο. Μην καθυστερούμε άλλο, πάμε άμεσα στα σημερινά Λατσιο – Μπαγερν Μοναχου προγνωστικα στοιχημα.
"Side effects be damned" makes no sense.

Thalidomide is authorised for use in many countries today. It's just that the prescriber has to consider whether their patient could be or become pregnant, and ensure that if the patient could become pregnant they understand that this would be extremely bad.

For its original intended purpose this makes it useless, nobody feeling a bit nauseous wants a medical exam plus an hour lecture about contraceptives, but if you have leprosy and other drugs aren't working, Thalidomide might make a real difference to your life despite the scary contra-indications.
> Epic' is not a 'middleman'

Completely false. Epic proposes to run their own App Store. They are a middleman. You would know this if you had been following their cases.

The Google play analogy is absurd for obvious reasons. By that logic, anyone who would be interested in opening a store on iOS would already be running one on Android, which is clearly not the case.

If Apple is charging too much, the solution is for competitors to build their own platform. They can easily afford to do so, and that would create jobs, innovation, consumer choice, and pricing pressure.

Forcing Apple to provide a platform for them is the opposite of market dynamics.

Epic and others are trying to avoid making real investments in the future because lawsuits and lobbying are cheaper than building platforms.
YC startups are becoming scum bags day by day. Can you address this? If your treatment is faulty, why do I need to give up my rights?

Binding Arbitration. These Terms of Use provide that all disputes between you and Wyndly Health that in any way relate to these Terms of Use or your use of the Site will be resolved by BINDING ARBITRATION. ACCORDINGLY, YOU AGREE TO GIVE UP YOUR RIGHT TO GO TO COURT (INCLUDING IN A CLASS ACTION PROCEEDING) to assert or defend your rights under these Terms of Use. Your rights will be determined by a NEUTRAL ARBITRATOR and NOT a judge or jury and your claims cannot be brought as a class action. Please review the Section below entitled Dispute Resolution; Arbitration Agreement for the details regarding your agreement to arbitrate any disputes with Wyndly Health.
My estimate is that he wouldn't have been able to produce the Bitcoin whitepaper solo but I think he could have brought together or participated with other people in it.
> If wework had gone public via SPAC they would have actually gone public (although wework looked pretty bullshit even before everyone stopped wanting so much office space) and not just been a big embarrassment.

Funny you mention it; WeWork is in talks to be acquired by SPAC BowX, though it might also depend on SoftBank talking Adam Neumann into taking a $500 million haircut: https://www.wsj.com/articles/wework-co-founder-adam-neumann-...
>That’s why tools like linenum.sh and linpeas.sh are written in bash.

I've encountered many systems without bash.
The 20% works like this:

You create a SPAC with, say, 10 million shares. You sell 8m shares to the public for $10 each, and 2m shares are given (technically, sold, but for some nominal sum like $25k) to you as the sponsor.

Now the SPAC is just a box containing $80m dollars (well, actually, significantly less than $80m due to all the bank fees, but let's pretend). Since their are 10m shares, each share is backed by an average of $8 of cash, and you personally own 2m shares backed by $16m of cash.

Matt Levine runs through a lot of the math here in his "SPAC Magic Isn't Free" column (https://www.bloomberg.com/opinion/articles/2021-01-08/spac-m...)
This sort of flamewar comment will get you banned here. No more of this please. We're trying for a quite different sort of discussion—one which doesn't jump straight into hell.

https://news.ycombinator.com/newsguidelines.html
Don’t use them. They use arbitration clause. You will lose your rights.
Great comment. Was curious w/ regards to Ulam. Found this on Wikipedia:

In January 1946, he suffered an acute attack of encephalitis, which put his life in danger, but which was alleviated by emergency brain surgery.

...

Another friend, Gian-Carlo Rota, asserted in a 1987 article that the attack changed Ulam's personality: afterwards, he turned from rigorous pure mathematics to more speculative conjectures concerning the application of mathematics to physics and biology; Rota also cites Ulam's former collaborator Paul Stein as noting that Ulam was sloppier in his clothing afterwards, and John Oxtoby as noting that Ulam before the encephalitis could work for hours on end doing calculations, while when Rota worked with him, was reluctant to solve even a quadratic equation.

https://en.wikipedia.org/wiki/Stanislaw_Ulam
It's like people always imagine aliens would appear in the middle of NYC.

Maybe Satoshi is a South African student in Glasgow, who moved back with his family to Germany and is shaking his head at BTC's evolution now that he grew up beyond "bruh banks bad" ?

He did an overly inefficient distributed linked list, which is replicated thousands of times by smaller projects to yield exactly the same value (the "bruh banks bad" value)
idempotent -> same same, but different
$45/hr _does_ seem cheap, however, you don't have the upfront sales cost that comes with consulting. You don't need to maintain a relationship with a client. Hopefully cashflow and payment would also not be an issue with an intermediary guaranteeing some kind of payment (but it is a new startup so who knows...)
This is well trodden ground but the genesis block message plus the distinctly British style of his writing convinces me that Satoshi has some connection with the UK.
This sounds like an experiment that would pass, because there is no real danger to particioant, as long as their vitals are monitired and intervention is avaliable if needed
A big part of learning what mushrooms are edible is identifying the ones that can harm you.
From reading the article it sounds like laws dictating when a prisoner is released are pretty complicated and many prisoners may not know if they should be released early based on good behavior or changing laws.

That's just my assumption. Remeber prisoners tend to be from less privileged backgrounds and some may be very ignorant of how the law works or even functionally illiterate. So things that seem "obvious" to educated engineers may not be obvious to them.
It’s not. There are literally hundreds doing same thing. They also use arbitration. Looks like you are paid commenter. My bad!
It just needs to look like a bug, not a feature.
I bought a couple of Nintendo DS Lite consoles at the beginning of the corona virus but found these to be too small to be enjoyable so I bought a Nintendo New 3DS XL instead. The New 3DS XL was pretty decent. I played quite a few games and finally sold the New 3DS XL as well as the DS Lite consoles that I had bought.

Something worth keeping in mind is that if like me you don’t intend to keep them but only want to play with them for a few months, then I suggest you do like I did, stay on the lookout for a while to get a feel for how much people are asking and how much people are paying, when you then later find one at a decent price you will know that the price is decent. You buy it you play with it for a while and then you sell it for somewhere around what you paid for it. Try asking for a higher price first. But even if you sell it at a small loss, you (hopefully) got entertainment value out of it and it was worth it.

I was extra lucky with mine because after I bought the New 3DS XL, someone listed quite a few DS games and a couple of 3DS games that they were giving away for free in a neighboring city to mine. So I went and picked up 12 or 14 games or thereabouts, that was given to me for free. Maybe 2/3 of the games were low quality games that I only played a little, but there were some gems too. And when I sold the DS consoles I bundled the games with them, distributing the games I liked and the ones I did not like so much evenly. And still not asking much more for most of the consoles, just a little extra. And this way it also became a good deal for the buyers that bought them from me.

I probably would have held onto the New 3DS XL if I could afford to, but realistically even if I hadn’t needed the money I feel that I was done with it, and was not planing on devoting more time playing it in the near future. Better then to sell it to someone else. I get the money and they get to enjoy it.
Most people use debit/credit cards which batch process in the evening and the store doesn't get the funds until some time after that. And the fees to merchants on those cards are in the range of 2%.
Ask HN: Trivia questions about Computer Science
Hello Community,

I'm preparing a list of trivia / basic questions about computer science for beginners.

After this I intend to publish answers to these questions (in text / video format).

For now I have the following questions. Can you please contribute other questions that beginners may find helpful?

- What is a bit?

- Why there are 8 bits in a byte?

- How many bits do you need to store the number 34234230950425?

- Why a typical 32bit CPU can access 2^32 = 4GB memory, but a typical 8 bit CPU can access 2 ^ 16 = 64KB memory?

- My phone has two types of memories. One is 128GB, the other is 4GB. What is the difference between them?

- What is the difference between a compiler and an interpreter?

- Why the expression 0.1 + 0.2 === 0.3 is evaluated to "false" in JavaScript?

- What is HTML?

- What is JavaScript?

- What is machine language?

- What is Raspberry Pi?

- What is Arduino?

- What is a microcontroller?

- How is text stored into computer memory?
You’re measuring attacks, I’m talking of being in close proximity.

Probably people die of bee stings more than sharks attacks here in NZ, but those bees certainly aren’t africanised. I suspect most US deaths aren’t all from africanised bees either but that’s going to be hard to prove.
Good. Please, keep on writing more spaghetti code. Dumb people like myself need it to make a living "cleaning" it up. Circle of life.
Personally? Yes (except for the first example you gave, which I don’t classify as “list comprehension”).

It’s not inherent complexity though, just personal preference. I grew up writing for loops so they’re second nature to me and I grok them instantly in a single pass, whereas some list comprehensions require a re-read (particularly if they’re nested).

Different strokes, that’s all.
> our own brains keep track of rewards using dopamine [...] the reward equation includes a decay or ‘forgetting’ parameter, so what happens if you disrupt established solutions for long enough that their hold is broken?

If the author is reading, this is an excellent opportunity to learn about how people with ADHD cope. We have limited dopamine absorption and our forgetting parameter can be a lot more fussy.
Thats a serious sci-fi plot right there. Man cryonically freezes himself after inventing a cryptocurrency, wakes up in the far future the richest man in the world.
Not at all. A small government can be strong while applying the laws.
Copper is also 60% better in the thermal conductivity properties as well, which is another critical property.

Power density in an electric motor is really based on how fast you can remove heat from the motor. I'm involved in sizing industrial servomotors, but even there you have 1s/10s/60s power ratings.

I wonder if H3X can post higher power levels for takeoff, assuming it starts cold and the flight plan calls for throttling back after a certain altitude is reached. And even in the event of an immediate 150% power return to runway after a 150% takeoff, the motor might only have slightly degraded the winding insulation; it can almost certainly exceed its ratings once for long enough to get back to the ground.
Agreed, the Preppy is excellent! Some good reference information is here (for people who prefer it to a store link): https://unsharpen.com/pen/platinum-preppy-fountain-pen/
There are plenty of people who are born into means such that they realistically don't need to worry about being hungry or homeless, and they still get up and go to work each day.

Nobody needs the threat of hunger or homelessness to motivate them to live normal lives.
That happens all the time. What's weird is that they look at me like I'm trying to rip them off.

I have already told you I am not going to charge you. I am just stating my rate if you were to pay for it.
> This kind of cavalier attitude towards half a million people dying bothers me

> I really don’t think we’ll look back on this and think, “Eh, a half a million people died, oh well,”

Well, we look back on the past 2 decades (2000-2020) and think "eh, 700k+ people (mainly the elderly) have died from influenza, oh well." But actually most people don't even think that. Most people just... don't even keep track of how many people die of the flu because they don't care. Why would covid be any different 20 years from now? To be honest most people probably wouldn't even care how many people were dying of covid if the media wasn't shoving the statistic in everyone's face 24/7. Just like most people don't care to know how many people die in the USA per year in general (~3 million) and what the breakdown of those deaths are in terms of causes.
why don't you try it out and report back?
Three thylacines (Tasmanian wolves) have apparently been photographed alive
> During recessions, employers tend to lay off rather than reduce wages

There's a good reason for that. I've seen both done. An across-the-board wage reduction means your most productive leave. A layoff is getting rid of the least productive.
At 7 inches higher resolutions are great for clearer text, but really don't make a hugely noticeable difference in games, especially fast moving ones.

And the lower the resolution the better the framerates you'll get (and running upscaled ~1280x800 on a higher res screen would look worse than native 1280x800). 1280x800 @ 7 inches is already 215.63 PPI[0], which is more than twice the average 1920x1080 24 inch PC monitor.

This is all especially important with a low powered GPU like the Vega 6.

[0]: https://www.sven.de/dpi/

FWIW my preference with a device like this would definitely be lower resolution, until someone manages to stuff much faster hardware into the same form factor.
It seems pretty easy to figure out: if somebody tells you to buy the stock, it’s because they’ve already bought in and you’re the mark. There’s no incentive for the scammer to include more people in the winning side of the pump and dump, they benefit by having as many fools as possible pumping and as few of them as possible dumping.
Multiply by 0.7? Doesn’t that mean the sentence is shortened?
Regarding point 5: increasing population via reproduction adds workers in 16-18 years.
Immigration adds workers immediately.

Additionally, immigration increases both labor supply (obviously) but also labor demand (more consumption, because immigrants buy stuff and services just like anyone else) and as a result wages are flat even when a lot of immigrants join the economy in a short amount of time.

"This has been tested under conditions such as the Mariel Boat Lift, where a large number of Cuban immigrants all joined the Miami labor market in a short period of time, increasing labor supply by 7% very quickly. Research found that there was practically no impact on wages and employment for locals."

https://www.reddit.com/r/Economics/wiki/faq_immigration

https://www.jstor.org/stable/2523702?seq=1
By far the most important best practice is to keep the damn thing stable and online. I'd much rather integrate an API that doesn't change but maybe has a few pain points in developing the client than one where the client is a bit easier to develop but the API changes every year.
Saying the right thing has always been easier than saying the correct thing.
Stackoverflow is both asynchronous and asymmetrical. The former lets the dev answer when convenient. The latter means the dev knows that their time is being multiplied and potentially lending help to large numbers of other devs over a large period of time. That is a compelling idea. A phone call is one-to-one and inconvenient. $45/hour is also hugely underpaid in the US at least. So, the proposed system is underpaid in both $$ and personal satisfaction.
> How would you use call/cc or the rest with arbitrary callers?

For example, with shift/reset operators (a form of delimited continuations) you can do something like this pseudo-JS code:

const cancelled = reset {
arr.sort((a, b) => {
if (aborted()) {
shift (k) {
// k is a continuation from shift to reset,
// but we want early return so we discard k
// and replace the reset expr with false.
return false;
}
}
return compareTo(a, b);
});
// this will replace the reset expr if shift is not triggered.
return true;
};

Every example I've mentioned can be used to implement exceptions after all, so if you know something can be done with exceptions, you can do the same with call/cc and so on as well.
Another factor to note is that many larger institutional funds reserve a portion of their funds for follow-on to fill up their pro rata in their winners' later rounds. Those winners tend to be where all of the returns come from anyway, so it isn't a strict distribution of one-and-done bets across companies of a similar stage.
For a second I thought Bernie Madoff was set free. I think he was the king of ponzi schemes in recent times at least and in the duration he was able to run his trick. If it wasn’t for the financial crisis he’d be still doing it until the next one when he’d become insolvent.
It's still pretty much WIP on the software side of things. The graphics drivers are not working as they should yet, and the default (debian-based) distro needs polish.
Not really sure where you're getting this data, but in reality both Oxford/AZ and Pfizer/BioNTech will provide extremely high effectiveness at reducing severe illness. It probably won't work out to be literally 100%, but pretty close.
Do you happen to know if Zoom is available on FreeBSD?
It is tricky, but they try to apply what are called "hedonic adjustments." [1] If a new iPhone comes out that is way better than last year's iPhone, but it is the same price, then that's deflation! You got more stuff for the same price. Or even if your new plasma TV is more expensive than the old CRT, how do you compare them to decide whether the price level has increased or decreased while attempting to hold "quality" constant? They walk through an example like this on the webpage.

Of course it is very difficult to compare for entirely new product categories, though the good news is that brand new products likely are not a large portion of the consumption basket at the time they are introduced. So it shouldn't make that much of a difference. Otherwise, you are comparing each year to the next in a sort of "family resemblances" kind of way - maybe you can't directly compare a smartphone to something in the 1950s, but you can do incremental comparisons along the way.

[1] https://www.bls.gov/cpi/quality-adjustment/questions-and-ans...
It's that ATF bumppen again. It launches grenades too.

A good book Three Felonies A Day: How the Feds Target the Innocent
If apple launched a first-party controller attachment with consistent inputs that game devs could target, they would be worth another trillion
IMO it would also be really nice to have non-string keys in objects, like:

{
[1, 2]: "a",
[3, 4]: "b"
}
Formafantasma – site that claims to be designed to minimize energy consumption
Ask HN: Is it agaisnt SEC regulations to start a gofundme to buy a stock?
> Did you have expectations of good games coming from Google? Do they have a track record for that?

Nope, but the fact they even considered it in the first place was kind of foolish. Now, there's so few titles available on Stadia it's hardly going to be a Steam competitor any time soon.
> Non-monetary problems like oil shocks and pandemics can cause recessions

It wasn't the oil shock of the 70's that caused recession. It was our response to it - Nixon's oil and gas price & allocation controls. We came out of that when Reagan repealed it.

Our current recession is not caused by the pandemic, but the lockdown response to it.
Got to go to Tasmania years ago; was really cool to learn about the Tazzy tiger and the Australian equivalent of the bigfoot legend.

Exciting news! Let's hope for the best.
So essentially it only gets worse from these numbers, because right now every block is full so every transaction is consuming the least amount of energy it can if you process less transactions the energy cost just keeps going up.

Also the defense of "the energy is spent securing the blockchain" is missing the point, the blockchain isn't a good unto itself it's only useful as a log of transactions and you only need new blocks when there's transactions and if there are no transactions Bitcoin is basically dead.
That right-hand thumbstick looks like it's blocking access to the 4 buttons.
"Can't".

There are plenty of PC games that have mobile ports. All the GTA3 ingine games, several bioware rpgs.

You're confusing "can't" with "publisher hasn't bothered".

The hardware, certainly on newer iphones,is plenty powerful.
He gets the good will of reasonable prices while keeping the prestige of long wait times, so from a brand perspective, he's still doing well. He can't prevent scalpers right now. But even if he sold to maximize profits today, people in the future, even in his lifetime, can make super profits off even higher prices. This happens to artists whose earlier work sell for millions, while they see no benefit from those sales, except high prices for newly-produced art.
It was in the top 10 only a few months ago. The trend is that it's going away.
There's around 1.8 million elementary school teachers in the U.S. - I've never considered how much it costs to pay them every year. Wow.