skysight-inc/HackerNews huggingface dataset:
Another way to look at Pelosi’s visit is that had the US not shown such a strong stance of support China would have already attempted an invasion, and it certainly looks like had Russia succeeded in their initial invasion plans China would have followed suite. Deterrence is a major diplomatic card to use to avoid open conflict and maintain the status quo.
It will be amazing to see the iterations on the theory and on the physical production of these materials over the next 20 years. LK99 is the gate that opens the understanding of ambient room temp superconductivity. It’s not so much about this particular material but that the theory behind it is objectively true.

The force of many thousands of people will combine to improve this in the coming years.
Hey everyone! I recently wrote an article on Medium about the websites and online tools that I use on a daily basis and find particularly helpful in my work and personal life. If you're always on the lookout for new resources and productivity tips, I think you'll find this article useful. Check it out and let me know what you think!
Microplastics are rapidly accumulating in the environment and don't break down quickly. If we wait until the effects are significant it may be too late to stop significant future harm.
Are you suggesting that they take phone video of all their experiments over the course of multiple years? Or just the one they know will succeed?
> . It would be enormous, tedious to build (couldn't use modern lithography), and also consume tons of power.

Sounds to me like you're saying that Transistors are more efficient than vacuum tubes, both in terms of space and power consumption.
rising ocean temperatures will kill those fish long before lead ever does.

it felt bad to type that.
Explore the Raspberry Pi Factory Floor in Wales, UK
https://en.m.wikipedia.org/wiki/Unintended_consequences

See "Perverse consequences of environmental intervention"
Because when people took it upon themselves, they apparently secured it with sandbags, creating a serious hazards in high wind conditions.
The article doesn't distinguish between polyethylenes and polypropylenes. Are they equally problematic or is it assumed we're talking about polyethylenes since the focus is on disposable plastics?
What's the non self checkout version then? Staking out the delivery drivers a few times a year to see how they do? That seems like a massive hassle.
This is why tdd is accidentally successful

Cuz it forces to start with api design
4090 (and all consumer chips of its class) have terrible efficiency and are not suitable for use in a DC.
Meta Offers to Seek Consent for Highly Personalized Ads in Europe
Where is the evidence of human effect on the climate change? There is a huge effect on pollution, but hardly any on the global climate.
This is why we can't have nice things. The tech is easy to build but there are some people who will gladly tear it all down if they detect even the slightest hint of impropriety. Bluesky is doomed if they try to please everyone.
I’m totally not saying I agree and would definitely do it myself……but yes.

100% yes.

I’ve been plex for a while but jellyfin looks like I might have a choice of service in future.
Raw concrete price in USA is closer to 150$/m3, often less.

One thing we don’t know is life expectancy vs Li-ion, whose 10-year charge is ~60%.

I haven’t read the paper; one thing that’ll also be interesting is operating temperatures. This could be a massive upside to concrete supercaps in certain parts of the globe.
Here is another video link that successfully replicates the anti-magnetic properties of the LK-99 material: https://www.bilibili.com/video/BV1Ex4y1X7ix.
SMES systems offer grid-level energy storage at about 98% efficiency.
You could also move nuclear reactors to the middle of the desert because no one wants them in their backyard, then losslessly transport their power back to the grid. Same for bringing power from solar and wind installations.
These are just two examples with immediate commercial application. The economics of energy production shift when you eliminate 15% of the cost and distance limitations. That would have a big impact on decarbonization.
Longer term, josephson junctions replace transistors in processors.
Not everyone aspires to climb the corporate ladder or take on higher management roles. Some individuals may be content and fulfilled by pursuing specialized expertise or contributing in other ways.
https://xkcd.com/2501
And my point is that the definition of cryptocurrency is effectively "Bitcoin and its many offspring, clones and imitators".

That's not something that you need to wait to know about. That's what the word means.

It doesn't matter if you think bitcoin is amazing, and will take over the world, and is basically the currency of the gods. It doesn't even matter if your pipedreams about it destroying fiat currency come 100% true. Bitcoin falls within the category "cryptocurrency", and the attempt by yourself and other BTC fans to paint it as a separate phenomena is fucking ridiculous to observe.

If you truly believe that the first cryptocurrency is not a cryptocurrency, you might want to examine what has happened to your cognitive faculties. I'm not even saying that to be mean, you've stretched something beyond breaking point with the mental gymnastics there.

You've even said it in the post you linked to!

> And the only way to do that is via 1 single cryptocurrency: the very first, the only one

From your own fingers!

Seriously, this is embarrassing.
Any reason for all the animated text on the landing page? I found it jarring to glean information about the product when the page is constantly moving.
If you use ray marching then you could basically find the occluded contours for free, or at least it works when ray marching to SDFs. Not sure if meshes would present more of a problem though.
That hack was a common way to render outlines in fixed function pipeline days, yes. It only really works for simple, convex forms and "works" is probably a bit generous. It's far from a general-purpose outline technique and an outline is just one effect you might want an occluding contour for.
Guide to the Language of API Design
I have always called them vacuum tubes (in US) but I think they are valves in the UK.
Having just done some soldering yesterday, may I say: I am a bit appalled at the idea of soldering irons having (or needing) firmware. Mine, I plug it in, it gets hot, and I solder things.
There was no indication that China would go to war now. But the Pelosi visit made war more likely in the next few years.

And as mentioned, war would benefit no one except defense stocks. Certainly not American tax payers like myself.

So if America isn’t going to win the war, everyone will pay a heavy price, then why disturb the balance? This is a rhetorical question.
I don't understand how this is distinct from the issue of pay.
Is a profit of $394m one quarter sufficient indication that this kind of criticism was wrong? As far as I recall, Uber lost quite a bit more money than this each year since 2016 so they'd have to repeat this a few times if we're to believe this is them hitting long-term profitability.

Also my memory of Uber critiques weren't that they'd never be profitable, but that as a business they aren't quite as unique and untouchable as their valuation suggested (which, given the number of competing companies that operate in my city, is correct).
That goes for any sufficiently dense energy storage system, including most batteries. Imagine someone accidentally shorted out a car battery with something that can withstand a few thousand amps. (Come to think of it, a room temperature superconductor would do nicely for that purpose...).
There's massive differences of using this compared to throwing some keys on a server and opening 22. These systems use the cloud provider's proxying and authz/authn to dynamically grant access.

One could have a box with no public IP and no open ports and still use this to connect.
You are thinking too far ahead. There is a real risk of persistent cloud cover and ash in many places without total crop failure.
Reminds me of https://en.wikipedia.org/wiki/Manna_(novel)
Thank you for always bringing previous discussions up. It's nice to get a broader view of what people think, especially when there's little activity in the current thread (which isn't the case here but sometimes is).
This is a very interesting read:

https://www.cambridge.org/core/journals/journal-of-glaciolog...

They have found some meltwater layers with unexpectedly large quantities of CO2 > 750ppm.

But they also show that there is unexpected heavy diffusion around the meltwater layers. And they argue very compellingly, that the ice core CO2 records have been smoothed through natural diffusion.

Why is this information not given when showing this graph?
Because you're not measuring a pure superconductor sample. To be able to observe the cliff on the IV curve you need enough of the current path in between the electrodes to be superconducting, but certainly not all of it will be. This is true even in commercial superconductors, just with the ohmic losses pushed down even further.
Determinism is observable on a micro scale- I can tell someone to do something and they do it, or I could predict someones behavior relatively exactly, or I could even control their behavior directly. How then is determinism not translateable to the macro scale?
Are they really safe to use them on computers?
No? Transistors have a voltage drop in operational mode, and P=IV.
I don't think the claim would be about quarterly profits. It has had profitable quaters before.

Consider, eg,

>Uber on Tuesday posted a profit of $394 million during the second quarter, compared with a loss of $2.60 billion a year earlier

This really doesn't answer or refute any questions around their business model.

The final question is: what's the moat?

It's trivial to create these "automate contract labour" apps, and many now exist. It seems an industry designed to reach, at its height, tiny profit margins.

I suspect regulation is heading in the direction of making it easier for people to move their data between apps too -- if that happens, the "social-data" moats of these bizes will disappear.

They'll be left with IP that teens could compete with
Ok, now I am really interested in your story.

If you don’t mind sharing. How did you find yourself in a second career as the owner/operator of a tugboat company?
I've had a relatively small (about 2" x 2" x 1") ceramic magnet explode on me. The shrapnel was embedded deep into the adjacent wall.
What Is Biography in the ChatGPT Era
> Dutch use it on highways to make everyone miserable.

There's a couple places it's used and the only people it makes miserable are people who speed. Unlike in some places over here the speed limits are generally sensible, speeding above those limits is inherently dangerous.
I think people here underselling this idea a bit. I would like to see this concept played to the death: Where some lecture on a hard subject is structured such that it would focus on the surprising things first and focuses on them. Sometimes I would listen to something complex and I cannot make heads or tails of it. Maybe structuring lessons by how they are surprising, bringing attention to them, would help to clear the fog quicker.
Could simply be that my understanding of declarative I a wrong.

AIUI, declarative is listing what you want, while imperative is listing the steps to get what you want. Naturally, I feel that extending a declaration with conditionals or looping constructs make that not-declarative anymore.

That's because, I feel, a conditional is a sequence of steps, not a declaration.

Hence I regard (perhaps incorrectly) that declarative syntax with support for conditionals is "hacky".
I use Netlify since multiple years for static site hosting on their CDN, partly using a headless CMS. It is a blast to use and I could not imagine how it can be any easier. For full-stack applications I would definitely consider Render, as I heard many positive reviews.
For me, as a front-end developer, Jamstack and Serverless comes in very handy as I don’t have to spend time learning other programming languages, but Laravel looks very appealing to me, being opinionated and having a rich ecosystem.
On the other hand, not splitting words at spaces during variable expansion would make impossible things like:

OPTS="-a -b -c"
foo $OPTS
In literature, this concept can be seen in works like "Harry Potter" by J.K. Rowling, where the magical world of wizards and witches exists alongside the ordinary world of non-magical "Muggles." The Chronicles of Narnia series by C.S. Lewis is another example, where children from the real world find themselves in the enchanted land of Narnia.
Or a stop that moves the pinch-point further out of reach, and then clearly sign it off. This can be a hard thing to get right, but there definitely are solutions.
These are a type of comments named "danmaku" (弹幕), originated from a Japanese video site Niconico. Under the player there's a button appearing as a TV icon with a 弹 character in it; click the button to toggle these comments.
Uber has burned 32B to date, so I don't think investors are super stoked now.
Quantitative easing cost hundreds of billions. Was it worth it?
The transistors create a lot of heat because the current carrying capacity of the interconnect is severely limited which increases the time to switch the transistor from off to on or vv. This puts the transistor into a resistive domain where it consumes power and that leads to heat. If you use a superconducting interconnect that transition time will drop sharply and that in turn will lead to less power used by the transistor.
I'm partial to "Cheers"
Please stop doing this. You’re making judgements on candidates for social skills that most likely have nothing to do with their job.

Sounds like you’re interviewing for a date or a roommate, not an employee.
like, the || && operators having same precedence.. and other inconsistencies, i.e. how to pass "a*" down as parameter..

btw csh/tcsh "" quoting rules are atrocious, avoid it..
It’s very slow, box86/box64/FEX might be better options if you want decent performance
Java didn't support varargs until version 5, so it might have been a workaround for that particular deficiency.
I disagree that its not capable of producing worthwhile creative writing, I've had great fun getting it to generate good art, usually by giving it writing tips. Things like:
"show, don't tell. Give characters (but only some, not all) internal motivations they try to hide from others, and indirectly, the reader. create interesting worldbuilding, hinting at complexities and structures without fully explaining them. "

to tell the truth, there is a creativity and and art required to prompt it to produce interesting results. be thankful of this fact. There is also a fun perhaps inversion of values for me when you start using it this way (I find I value interesting story aspects the AI came up with more than ones I told it to use. I guess because it's not always that great at it so its a plesant surprise. A time it out of nowhere decided to set an unrelated story I asked for in a religious dictatorship with strict and specific rules I couldn't trace to any religion I knew of was particularly delightful, where it might be merely a "meh" framing device if I knew it were written by a human)

Another great prompt I found gives great results was asking gpt4 to use a "staccato writing style". I've had some really creative writing styles come out of things like this, sometimes I go into a little more detail like "use only short sentences punctuated with particularly resonant words that make use of hard consonants" but often leaving it to its own devices when you use more "flowery" descriptions of writing styles can work quite well.

My favorite was one I asked gpt4 some months ago to write about a kafkaesque story set in a world where animals held all real power and were generally dismissive of humans' concerns.

I won't post the whole things, thats assanine, but it did a great job with worldbuilding, writing style, characters, keeping it artsy and mysterious etc
The energy density isn't the scary bit, the power density is. The referenced paper in that Wikipedia article indicates ~10^5 higher power density than li-ion. So while it stores 10x less energy than li-ion it dumps it so much faster. The difference between a combustion and a detonation if you will. I'm guessing the vicinity of the thing would get turned to plasma.
Multiple Chinese APTs establish major beachheads inside US infrastructure
The are microwaves fully in on the curb-stomping https://www.tomsguide.com/news/ges-kitchen-hub-is-the-smarte...
My back of the envelope suggests most digital microwaves with a smart defrost but no connectivity are probably more in the 2000 ELO range (i.e. can beat most players but not grandmasters). Mainly due to not having enough storage for large opening/endgame books.
As much as I've been following LK-99 news, this evidence is pretty meh... The video quality is poor, and they do not really demonstrate levitation.

If some of the sample was ferromagnetic, it would always be attracted to the magnet. If that's a small grain in the bottom side, this would explain the sample "standing up", while that side tries to become flush with the surface.

I second the "break the sample up" sentiment on this one.
it’s just showing your work with more fancy descriptions.

if you have a beautiful term paper that emerged from the ether, it’s likely synthetic.

if you have notes and outlines and all the trappings of having written a term paper, then at the very least you understand all the components and the process, even if you managed to use a language model for every step.

that’s the point, the box is open. but it can be used rather than abused. things change. how we learn is changing.
I, for one, would love to read that.
Imagine how laypeople feel when they hear IT people talk.
If you Ctrl+F "patent" on an article about a technological breakthrough and get no results you can go ahead and close the window. It's not going to be relevant to your life for at least a decade if ever.
Glad I could help. Hope you're doing well. I miss those Slicehost days.
End of the line for Russia and Ukraine’s partnership in rocketry
My favorite example of the problem of induction: by induction, a cow believes the farmer to be the cow's best friend and loyal supporter, because the farmer dutifully cares for the cow's needs right up until the last day of the cow's life.
A lot of science takes a mind-numbing amount of time at the lab desk. Something like 40 hours a week just dedicated to picking apart fruit flies with tweezers under a microscope is pretty common. I think I read somewhere that with MatSci, mortars and pestles and blisters are involved. It would be a lot of recording that would have to happen, and then you have to record every setting on every instrument you touch. How do we know that that's actually that reagent in that bottle? Yeah this just doesn't hold up for actual science. It's not something you can just take a Zoom recording of.
Don’t know what to do next? Teach
Samsung’s Galaxy SmartTag 2 design revealed by FCC–it’s big
Reminds me of Light Table

https://chris-granger.com/2012/04/12/light-table-a-new-ide-c...
Fischer Black and Artificial Superintelligence
This reminds me of the difference between our definition of property, based on the Roman law vs. how it is/was perceived by hunter-gatherer societies.

Our (modern, not nec. "western" whatever that term means) definition boils down to:

usus, fructus, abusus
(use, benefit/derive profit, destroy)

In other words, complete ownership means: this is mine, I can control when you have access to it, I can do whatever I want with it.

A contrasting definition would involve domination, in a sense that:

I have control over a certain resource and thus I need to take care of it.

A practical, classic historical example would be slavery. Owning a slave means exclusion from the society and thus turning them into property whose owner could deal with as they pleased. Native Americans (NWE, or Southern) practiced what we call capturing and treated their slaves more like pets, to the point where taking care of a "pet", "training" them could be a way of introducing them back into society.

This was not always the case, but it shows a huge, deeply embedded difference in how we perceive the world and the idea of property now.
Yes, the flake stands up when they approach a neodymium magnet to it -- but the corner that stands up is different! Isn't that consistent with a regular magnetic object, rather than a superconductor?

Look carefully at this video [0].

Which corner stands up around 2:05 ~ 2:10? The levitating corner falls towards the left side of the screen. Notice the color pattern.

Then the researcher flips the Neodymium magnet underneath. The idea being that if the flake was superconducting, the same corner of the flake would levitate.

Tell me, which corner stands up at 2:26 ~ 2:30, after the magnet was flipped? Is it the leftmost corner as before? No. It's the one at the bottom of the screen now. You can look at the color pattern and notice that it's truly a different corner, not caused by a spurious rotation of the flake while we were not looking.

In conclusion, in this experiment the flake behaves like every other regular magnet I've ever seen.

Disclaimer: not a physicist of any sort, but I have a pair of eyeballs.

[0] https://targum.video/v/2023/8/1/2534a4408ccce9c13a811e94f16d...
That was something I discussed with them and I certainly hope they're doing it now. ;)
Thank you for the candid feedback.

> on iPad the UI is extremely unintuitive and/or broken

The benefit of the desktop is being able to hover over buttons, most have tooltips with descriptions. This is not an excuse necessarily but I would liken it to landing on github.dev or vscode.dev without having seen or used VS code before. I really hate walkthroughs with tooltips (both as a user and a developer) but maybe I'll have to do something like that. What I do like about the current UI is that, by keeping control elements on the side and tabs on the bottom, I can have a consistent experience across devices and screen sizes.

Drawing more attention to the fact that there is a tabbed interface might help, seems like that was an issue.

Re: markwhen's syntax - I'll tell you what I like about it first, and then get into some of your points. I like that it is quite progressive. You don't need a header to start, nor groups, nor ranges necessarily, and you shouldn't have to think much about date formatting.

```
1 Aug 2023: hi
```
is a valid markwhen document. If a list of dates like that is all you need, that's great. If you need ranges you can add ranges. Need groups, add groups. Need metadata, add a header. I like that it follows a new user's experience, you don't necessarily have to start with everything from the beginning.

On groups and sections, people wanted nesting, soooo the simple hashtag syntax wasn't going to work without an end hashtag or something. So it doesn't mean nothing, it means the end of the group or section. Idk, I'm open to suggestions about it. I personally don't use nested groups and sections that much but people wanted it. There has to be some endGroup or endSection syntax I think, even if it's not those specific words
That energy density number likely includes the cooling system.
This might be anticipated, it won't be a surprise.