skysight-inc/HackerNews huggingface dataset:
8vdX (YC W22) Is Hiring a Product Manager
8vdX is hiring its first Product Manager. Come revolutionize the early-stage financing market with us!

8vdX is the first tech-enabled venture debt marketplace for startups, think of us as AngelList for venture debt. We currently provide founder-friendly venture debt to startups in YC and want to be the debt partner to the breakout companies as they scale and raise their Series A, B, and beyond. We are on a mission to revolutionize the early-stage venture financing market for startups and investors.

As our first dedicated Product Manager, you'll:

Define and execute our product strategy and roadmap, translating company goals into a clear product strategy

Work closely with the technology and design team to build a world-class product for both startups and investors, from product design to production roll-out

Look at product discovery and validation, making sure our customers are happy and satisfied with 8vdx's platform

Refine and maintain constantly our product backlog, aligning priorities with stakeholders

Create and refine organizational processes and standards while working in a fast-paced and unstructured environment

We want to offer a world-class solution for both startups and investors so our platform experience has to be top-notch. We are growing quite fast so we also expect you to grow with us.

What we're looking for:

A solid working experience in either building products in fast-paced environments or leading high-growth teams

Deep care about the end-user experience and creating business value: our clients are the priority!

A highly entrepreneurial mindset along with a desire to use your experience to good use. Great ideas are always welcome!

Data-driven: the ability to work well with numbers

Excellent verbal and written communication skills
People play these games all of the time with their houses.

"It's worth $600k!"

Yes, it's worth that much. Which means you can take on an even bigger line-of-credit if a mortgagor agrees. (Buy, borrow, die: Normie edition).

Doesn't mean it will sell for that much, and even if it did, the houses around you are likely worth just as much.
From the description, moon dust is very much an inhalation hazard. The sharp edges means it will embed into lung tissue and the composition likely causes silicosis.
I think this article does a good job of highlighting the difference between simulations and ML-based approaches. The latter are faster, but have limitations outside of their training parameters. As with everything in ML, broader training data to cover those cases probably helps. Though I would guess some of the problems could be inherent, that there fundamentally is no computational shortcut to this problem, whether you use a neural network or not.
Biggest key problem imho is how they expect to store this heat energy. It looks like this cell will, like a PV cell, constantly be absorbing photons. If those photons aren't creating electricity/voltage across a gap then they are being converted into heat. So to keep the medium at temperature you would need to insulate it, to wrap it in a mirror, only exposing the flux to the energy-collecting cell as needed. That means moving parts.

As for available temperatures from fission reactors:
https://en.wikipedia.org/wiki/NERVA

"When the reactor was operating at full power, about 1,140 MW, the chamber temperature was 2,272 K (2,000 °C)"
There is no such thing as self-custody or P2P in defi. Every solution I've ever seen promoting that relies on eventually doing reconciliation from a L2 chain. I'm ready to say that there are no problems what could be solved with defi, the whole thing is useless.
I hope I didn't misunderstand what you wrote, but where did you get the idea that being pro-choice means the ability to get an abortion from 0 months to 9 months pregnant?

There is obviously a spectrum to being pro-choice, but if I had to bet I'd put the majority of pro-choice folks follow: that woman has the right to choose to have an abortion while the fetus is generally considered pre-viability by the medical profession and under extreme circumstances where the life of the mother is at risk and/or the baby is now non-viable or will suffer a short and traumatic life.
TSMC is people. Not just people, but the hearts and minds of free people. It cannot be taken by force. The machines are irrelevant. This was on me of the first revelations I had in my first job after leaving the Air Force, which was at Micron. So many flawed ideas about war and corporate valuation in a modern economy.
It's like all engineering problems a matter of trade-offs. Hydrogen has very high energy per unit mass but very low volumetric energy density. In other words: if storage space is plentiful it may be a good solution. But hydrogen installations have all kinds of other constraints acting on it that may make hydrogen less good for a particular application. The typical way to convert hydrogen to electricity is either through fuel cells or by burning it to drive a turbine. You then need to take into account the conversion losses for both the splitting and the whole recombination cycle all the way to electrons again (end-to-end efficiency) to end up around from anywhere between 20 and 50 % or thereabouts.

That's usable but not great and the installations tend to be costly and somewhat fragile due to all kinds of attributes that hydrogen atoms have which they impart on the materials that that installation is made out of. For instance, hydrogen tends to make metals brittle so regular ductwork isn't going to work. Hydrogen installations also have the bad habit of going 'foom' due to the extremely low activation energy.

So there is some pressure to try to find a storage system that is both cheap, doesn't use exotic materials, is chemically stable and reasonably energy dense and has a round-trip efficiency as high as can be achieved.

This is a complex problem to put it mildly and there is a whole raft of technologies that are being examined all of which have different trade offs making them more or less applicable to certain applications.

The 'Iron cycle' is one of those, it isn't a winner on all or even a majority of dimensions but it has some interesting properties, notably: the cycle is uses only commonly available materials, it doesn't require long term storage of the hydrogen (which can be produced and used in the same cycle step), the materials involved are stable in both forms (pure iron vs iron oxyde), it is reasonably (not super) energy efficient and it has an energy density which for stationary applications is not problematic.

The biggest questions at this point in time are: does it scale and does it do so cost effectively. If the answer to both of those are 'yes', which this experiment in scaling up the cycle to 5MW should answer then it will at least be a viable contender, much more so than many other schemes that I've seen come by in the last couple of years.
He should be in jail for longer. What a traitor.
The idea is that you want to calculate

integral{from t=0, to t=x} t^{-1+0} dx

but you calculate instead

f(x) = lim_{ε->0} [ integral{from t=0, to t=x} t^{-1+ε} dx ]

that is just

= lim_{ε->0} [ (t^ε - 1) / ε ]

replacing t^ε

= lim_{ε->0} [ (e^(ln(t)*ε) - 1) / ε ]

by https://en.wikipedia.org/wiki/L%27H%C3%B4pital%27s_rule

= lim_{ε->0} [ ln(t)*e^(ln(t)*ε) / 1 ]

that is easy to calculate

= ln(t)*e^(ln(t)*0) / 1

= ln(t)*1 / 1

= ln(t)

So f(t)=ln(t)
> When we’re having The Same Fight, positive intent, or chalking up any harm caused as accidental, can be just as much of a trust killer as more overtly harmful actions. It doesn’t matter whether we are intentionally refusing to cooperate with our spouse or legitimately unable to understand what’s wrong—the math results are the same. The net result of The Same Fight is more pain. Less trust. Regardless of anyone’s intentions.

It would be very enlightening to also read the article written from the perspective of the partner. I suspect that partner would not focus on the glass but the lack of empathy shown by the other side, and the erosion of trust that causes over time.
> However, if they [restore backups], while the impacted ~400 companies would get back all their data, everyone else would lose all data committed since that point

How would they lose committed data? Even after restoring the backups can't they run the logs so that everyone is caught up?
Ask HN: Why do negative crypto articles dominate on HN?
I admit, I believe that Bitcoin will have an important (and positive) future in our lives. Yet every day I open HN and scan the articles I get the sense that most (not all) articles are anti crypto currency. The sum of these articles appears to me as "propaganda". Does anyone else feel the same way?

It would be interesting to know why the status quo financial system is held in such a high regard? Especially in light of the continual debasement of the dollar since it was decoupled from gold.

I for one, take this perceived negative bias as a confirmation that Bitcoin is a genuine threat to the existing financial system. When Bill Gates (and other powerful people) bad mouth Bitcoin I smell a rat. Does anyone else think this way? Am I just a dumb ass? :)
Abandoned railroad routes in North America
By segregating as much as you can. Definitely not by putting everything in a single table. At the very least separate databases/schemas with proper permissions so there's not any chance of data intermiBy segregating as much as you can. Definitely not by putting everything in a single table. At the very least separate databases/schemas with proper permissions so there's no chance of data intermixing.

The best would be multiple separate database instances, which is not even hard to manage specially for qualified engineers like Atlassian surely has plenty of. The problem are business decisions of ignoring the tech debt, usually...
I wonder why you use Jira if a spreadsheet is sufficient for your use case.
Taiwan’s Hidden Shoe Giant
This works with Microsoft's INTERLNK/INTERSVR as well. As others have mentioned, this was our first form of networking at home! Even had a special DB25 punchout wall plate to make the non-basement end more presentable.
While Rust is doing lots of interesting work bringing borrow checker into mainstream, it all started with Cyclone.

https://en.m.wikipedia.org/wiki/Cyclone_(programming_languag...

The biggest issue with all these alternative languages, outside the yearly PhD work on compiler thesis across all universities and SIGPLAN papers, is making them into a product worthwhile adopting, the killer framework or platform that forces regular devs to actually adopt them.
> A 21 year old woman on a dating site has to be picky. She's getting constant messages from men anywhere from 18 years old to 100 years old.

Putting the rest aside for a moment, I never till recently knew how true this was. I'm gay(ish) and I had never been on straight Tinder, so I always brushed off my friends' complaints as histrionic. A month or two ago I decided, in a moment of experimentation, to set my Tinder to 'bi'. I do pretty well on gay Tinder - overwhelmingly the guys I'm interested in are interested back - so I expected great things. I got nothing. Not a word, not from a single girl.

Out of sheer curiosity I matched one time with one of the enormous acneous beasts who were the only girls to swipe right on me, and even she didn't send me a message. It's wild. If I were straight, I'd be an incel by now. I know from (very very little) real-life experience that I'm not that unattractive to (what I'd consider) good-looking girls, but the online dating apps are seemingly just a meat market. I struggle to make sense of it all.
This is recommended in my experience, but you do have some potential issues when a UUID gets reused or repurposed.

WHENEVER a human is involved in the chain, UUIDs can be suspicious because there's no easy way to verify what it is, whereas a human has a good chance of realizing that $1,342.34 is probably not a valid date.
SoCal man says car computer on new Tesla froze while on freeway
Also, perhaps the bicycle is keeping them strong enough to not take that fall at home. It may be our first instinct to prevent an old person from engaging in a risky activity, however this is often a great way to kill them slowly. Sitting peacefully in an easy chair is a slow, painful, and boring death for many and often results in the falls you mention. Meanwhile, others are running marathons and swimming the english channel.

When you are 20, taking a fall could result in the same lifelong injuries. We have to be careful not to wrap our elderly in cotton batting simply because they are old. Otherwise we rob them of the chance to live as they wish for no good reason.
Sufficiently bone headed US military analysis that major TW media responded with "leave TSMC alone". TSMC doesn't major factor into PRC TW invasion plans since production relies on inputs US origin tech. Destroying TSMC is a PRC bargaining chip not vice versa. West industry makes most revenue (patent fees etc) with major strategic companies being existentially dependant on TW semi. PRC in has massive leverage over semi supply chain in war via ability to destroy East Asia semi supply chain vs west in peacetime via sanctioning.
There are basically two options for multi-tenancy with their own tradeoffs.

1. An account/tenant_id field for each table

2. A schema for each tenant wrapping all of the tables

Option 2 gives you cleaner separation but complicates your deployment process because now you have to run every database change across every schema every time you deploy. This gets more complicated as your code is deploying in case the code itself gets out of sync, there's a rollback or an error mid deploy due to an issue with some specific data.

The benefit of the approach is the option to do different backup policies for different customers, makes moving specific customers to specific instances easier and you avoid the extra index on tenant_id in every table.

Option 1 is significantly easier to shard out horizontally and simplifies the database change process, but you lose space on the extra indexes. Plus in many databases you can partition on the tenant_id.

Most people typically end up with option 1 after dealing with or reading horror stories about the operational complexity of option 2.
For all the grandstanding of Tim Sweeney and Epic Games about the "metaverse" and the "30% App Tax"... at the end of the day they made sure Epic's store doesn't take 30% and Epic's engine royalties don't stack on the store royalties. That is a show of goodwill.

Facebook is now in full-on "self-aware wolf" status, complaining about paying 30% to Apple purely because they wanted to take that 30% and missed the boat on mobile.
80x Faster Image Reconstruction for Real-Time Super-Resolution Microscopy
Indeed, my first PC to experimental hardware interfacing was through the parallel port with QBasic. It helps that the parallel port is a DB25-F and you can just poke wires into it :P
Personally, I support imprisoning anyone who helps subvert sanctions against a despotic state pursuing nuclear weapons.
Pretty much every convenience and supermarket in Japan sells half loafs (well, if a "standard" loaf is L=2, W=1, H=1 and a half loaf is L=1, W=1, H=1.)

The 1x1x1 "half" loaf is the standard size in Japan

https://prtimes.jp/i/36645/189/origin/d36645-189-bc3e74b4250...

Further, it's also common to be able to buy bread in 3 and even just 2 slices.

https://www.panstory.jp/img/images_np/fujipan/2015/06/01.jpg

For me, I crave bread, meaning if I buy the half loaf then I'd likely eat the entire thing in 1-2 days so I like being able to buy 2 slices and avoid the temptation to eat the 6 or so I would have had if I'd bought the half loaf

Also, it's common in Japan to be able to buy a loaf as to comes out of the oven. Bakeries all over Japan advertise at what times bread will be freshly backed.

Note: the fact that this size is ubiquitous in Japan also means the site is no really succeeding there. For example here's 7/11's bread

https://www.sej.co.jp/products/a/bread/

There are over 21k 7/11 stores in Japan and that's just one of several big chains that carry half loafs
Looks like the rays only hit populated areas. https://xkcd.com/1138/
Sure, you can, and feel free to try it. But thats not the reason for psilocybin's sudden popularity with pharma sponsored studies.
> the Carnot efficiency on that kind of temperature difference is way above 90%.

This is definitely not my area, but is Carnot efficiency directly comparable to the efficiency numbers cited in the article? Or is the "work" in Carnot efficiency the mechanical work, prior to being converted to electricity?
Honestly from the description you give, I wouldn't assign blame but it was probably the right call to break it off.

6 hours arguments that need to happen right now are a pretty big red flag...
Seriously, the weird veneration we have for the founders is very bizarre mainly because once they got in power, they largely acted like any other ruler.
You seem to have no sporting understanding of how the Grand Prix tournament works. His goal was to qualify for the candidates, he did exactly as much as was needed for that, nothing more. His positioning within the field is completely meaningless from a results perspective considering he won the only meaningful prize of qualifying for the candidates. The fact that you're misunderstanding the significance of that tells me you don't really understand any of this.

I guarantee you every top chess player is favoring Hikaru a lot more than you are. Even Danya has said as much. People that know, know. It's that simple.
Tons of war mongering here, the most likely outcomes are.

A: The status quo

Or

B: A very very slow transition to a Hong Kong like situation.

In the case of B it would be nice for Japan, America, and maybe Australia to offer citizenship to those who want it.

I just can't imagine a hot war here. You don't have the pretext of separatists who want to rejoin China.

At the same time, war mongering is good for the media industry, so expect more of it.
Gmail had a vaguely similar outage years ago. [1] tl;dr:

1. Different root cause. There was a bug in a refactoring of gmail's storage layer (iirc a missing asterisk caused a pointer to an important bool to be set to null, rather than setting the bool to false), which slipped through code review, automated testing, and early test servers dedicated to the team, so it got rolled out to some fraction of real users. Online data was lost/corrupted for 0.02% of users (a huge amount of email).

2. There were tape backups, but the tooling wasn't ready for a restore at scale. It was all hands on deck to get those accounts back to an acceptable state, and it took four days to get back to basically normal (iirc no lost mail, although some got bounced).

3. During the outage, some users could log in and see something frightening: an empty/incomplete mailbox, and no banner or anything telling them "we're fixing it".

4. Google communicated more openly, sooner, [2] which I think helped with customer trust. Wow, Atlassian really didn't say anything publicly for nine days?!?

Aside from the obvious "have backups and try hard to not need them", a big lesson is that you have to be prepared to do a mass restore, and you have to have good communication: not only traditional support and PR communication but also within the UI itself.

[1] https://static.googleusercontent.com/media/www.google.com/en...

[2] https://gmail.googleblog.com/2011/02/gmail-back-soon-for-eve...
It really depends on the purposes of the comment.

Direct responses can be intended to educate the person they are responding to, but they can also be intended to warn people around.

Does this person want to get a point across with empathy or do they want to discredit the comment to future readers to avoid the circulation of false information?
This sounds like a catch-22/ circular logic.

We would invade and topple the government if they didn't have those pesky nukes.

The government needs to be toppled because they are developing nukes and we don't want them to.
Looks like you didn't read the article in full?
Roblox is marketed towards kids who either doesn't know any better or cannot do anything about it.

Also, why is it ok for Roblox to have such high rates in the first place?
Cloud Server Leasing Leaves Sensitive Data Up for Grabs
What 'magic' is there in crypto.

Besides, cryptography as a munition is a known meme in the right circles. This is textbook what not to do.
Ethereum transition to proof-of-stake delayed again
Nobody is offended and nobody is trying to change the meaning of anything. You're assuming I know nothing about the topic and that's rude and makes for bad discusson. Don't do that.
Just like “no one uses them anymore”. Yogi Berra said it best: “No one goes there nowadays, it’s too crowded.”
The study doesn't describe self-reflection, but that doesn't mean that the subjects of the study didn't engage in it.

I'd be very surprised if they didn't.
The GDPR and various things have made companies more skittish in doing things this way, because they get scared.

Perhaps an effective measure would be to create a key that encrypts a customer's data, and give them a copy of the key, and let them know that after a certain point your copy of the key will be deleted, and if they want a restore past that point they'll need to provide the key.
He covers the lack of empathy pretty well if you read to the end.
There were spies used in the Revolutionary War. Other nation states have had spies as well, like the Roman Empire. Spycraft/espionage have existed for hundreds of years.
Thanks. Not vagueposting, then.

("Vagueposting", in my book, is when someone wants to hint what their position is, but not actually say it. It's like dogwhistles, except that it's not necessarily about race. They want to attract people toward their position, without being exposed to the criticism that would come from an open statement of it - at least, that's what I suspect their motivation is.

Thinking that your post is getting too long isn't the same thing at all. So, my apologies.)
I had the opportunity to design my SOC from scratch. Mostly ripping off Berkeley's public design.

Something I have documented in the last 2 years. Solar flare activity is what causes problems. All memory is ECC but it still happens.

Faraday cage incoming?

Wait? Faraday cage racks million $ idea?
It's the first symbol referenced for symbols used in proof by contradiction to show contradiction [0]. I know that's not exactly "not" or "disproof" but I think that might be what the poster was getting at.

[0] https://en.wikipedia.org/wiki/Contradiction#Symbolic_represe...
Oh, 100%. I think the author just picks out specific examples because it’s easier to visualize that than general unequal distribution of work.