skysight-inc/HackerNews huggingface dataset:
Of that particular list, I would say levitating trains are currently solved from a technical view point[0], and are awaiting economic viability.

I know enough about fusion to say while having stronger magnetic fields make things easier, there's a lot of plasma physics that needs to be understood to do confinement. Furthermore the easy reactions all have neutron radiation to deal with so it is an open question if it will avoid all the same social problems fission has had piled on it.

Hand held MRIs... that's a stretch, you can make better detectors with SCs, but even so, I suspect you'll want to wrap the area of interest in some apparatus.

One you didn't mention and I had been somewhat dismissing until last week was energy storage, we have big existing ones already[1] and several of their drawbacks go away if their refrigeration demands drop to 0.

[0]https://www.youtube.com/watch?v=4ZX9T0kWb4Y
[1]
That last paragraph really hits home.
I like the idea of this list. Some others:
- Quantum supremacy
- HIV vaccine
- Synthetic life
- Discovery of ET life
- P vs NP solution
Imagine a cloud transfer utility that made that easily possible?
Is this like constexpr in C++
It is until you get a bad boss, bad project, or bad company. It is hard to extract meaningful artistic fulfillment from work at a company. Possible, but there are a lot of forces conspiring against it.
Everyone talking about all sorts of important applications.

All i want is a maglev hot wheels track using flux pinning.

Just imagine all the cool toys a room temp semiconductor would enable.
It's not a search engine, I think? It's a search aggregator - it combines results from other search engines.
Pretty much. While I am but one of 8 billion people, all animal products have been off the table for a long time now. Part adaption to the future, part protection of what we have today, part ethics.
Since the map only shows events near coasts these drones could be submarine deployed...
Even worse, the cars are so smart you can't force a lemon law without getting caught.

I had a friend who had two transmission burn up in his new diesel f250 10+ years ago. The second one, they gave him a remanufactured transmission even though the truck was only 1 years old or so. He put on a huge tow hitch, backed up against a huge parking structure wall, and put it in reverse for 30+ minutes until the transmission overheated and melted down.

Got the truck bought back.
The part I love is that since calls for violence are censored across most of the commercialized web, or heavily euphemized as - - - - € 'get the pitchforks' , when an arab spring-esque explosion finally happens a lotta people are going to be very surprised.

"Where ever did this come from?"

What an irony.
Who prosecuted the US for Hiroshima and Nagasaki bombings?
Nuclear weapons.

There hasn’t been a full scale war between major powers since.
When those two things are equally effective absolutely. When was the last time that was ya think?
>No, a badly attached probe would usually show a larger resistance, not a smaller one.

if the area is small, couldn't it be "badly attached" directly to the other probe?
The single biggest issue with lab meat is the lack of an immune system. Once we crack that then there is a real chance of this stuff working out. That said until then, I will just avoid all meats. If I have those cravings, the alternatives we have now are reasonable enough to scratch that itch even if not the same.
Everything Matters in Programmable Packet Scheduling
A friend of mine recorded that to the beginning of their voicemail greeting, and apparently its worked.
curious what type of workload this would be good for?
Lol, not my 2005 Toyota. It doesn't even have anti-lock brakes, much less a GPS phone-home system.
It's always awesome seeing your comments about VW stuff. I've been using VCDS over 10 years now with nothing but various trims of Golfs for even longer than that. Luckily my Mk7 R came with all the FECs I'd ever want, stock! The secret menu doesn't show anything interesting in the diff between supported and installed.

Do you think there will ever be ECU/TCU tunes maintained as open source projects? Maybe not quite as user-friendly as the Cobb ecosystem and the like, but good enough to make $600+ tunes a thing of the past for DIY types who are into mucking about but want the peace of mind that comes with using maps that enough other people are already using? Not that tuners shouldn't be paid for their work, but I feel like they could focus on the custom tune segment and be ok. My current understanding is that free software exists (I haven't actually played with any myself yet, but I've heard of TunerPro, WinOLS, etc. and I see you maintain VW_Flash, very cool) but then the user needs to know how to create a custom tune from scratch, no free and widely used "off the shelf" / "staged" files floating around for common cars (the main value proposition of APR, EQT, IE, UM, etc.), correct?
Fentanyl should definitely be Schedule 2, like it is right now. It has a wide variety of accepted medical uses and can be used safely with medical supervision.
This looks like an interesting book. PragProg used to do deals on both the PDF and print combos, anything like that now? (I didn't see anything).
If the superconductor were levitating on top of a magnet, it would push the magnet down with its own weight. So if the magnet were on the scale, you would see the weight of the superconductor chip on the scale together with the magnet.

(Every time I've done it though it was the other way around, I put a superconductor disc in a petri dish and poured the nitrogen on and then floated the magnet over the disc.)
Yes, but it is unpatchable for any currently existing cars on the road, I believe that's the point they were trying to articulate (though not super well).

And yeah, you are correct, Tesla can close up that exploit in their newer hardware revisions.
Several months ago a professor from Tsinghua University got 2 million views in bilibili.

https://www.bilibili.com/video/BV1cY4y1y7ZM

Translation of the title: If room temperature superconductivity is really repeated, I will eat shit

Then this topic became hot in bilibili. Currently the first LK-99 replication video reaches nearly 10 million views.
https://en.wikipedia.org/wiki/Regional_Bell_Operating_Compan...
I kind of want to call these "wedge licenses".

If anyone were to actually use them, they'd wedge the open source community into a group that can basically treat it as open source, and those who can't. I dread to think about what happens if any wedged licensed program becomes a widely used dependency. In that regard, these types of license should be thought of as a contaminate.

The divisive element is what's driving the visceral reaction, and if anything, I think it's healthy. It shows people care.

id Software serves as a good example of what should be done. They released their no longer profitable previous-generation game engines as plain open source. That's more respectful of community norms.
> Is it just a grift for funding?

I'll put my money behind this. In the end it's all related to being able to successfully fund your lab.
Entirely.
I am from China. Not surprised at all..

Young researchers in China often face intense competition and pressure. While they are generally well-funded in the short-term, even more so than their counterparts in the US or Europe, the lack of long-term career security can be challenging. They must continuously chase after every potential scientific breakthrough, like LK-99, not just out of passion or curiosity, but as a necessary step for survival in their career.

Furthermore, the system in China offers many awards, grants, and titles that are tied to age. These are not just for prestige but are critical for progressing in their career. This situation adds another layer of urgency and competition among young researchers.
I think you mean lossless transmission? If we can actually replace transmission lines effectively with it, unclear whether it's practical for that yet.
Hyper-fixation is good only when you fixate on something that is necessary. My hyper-fixation is always on some side project.
I was kinda hoping there are $50 used one that work fine with stripped down minimalist Linux setup, maybe MATE or even lighter. Then I’d probably just buy 10 of them and leave them flung about, one in each room.

I’m half joking half serious.

Edit: Ok yeah there are bulk sellers of various Chromebooks that are going for like $30/laptop. i.e - “Dell Chromebook 11 P22T 3120 Non-Touch - Unlocked - Bulk Discounts”

Looks like I’m more serious than I expected. Just need to build a fast way to flash and image them.
It's a limitation of the most basic approach to the problem (measuring resistance), but not a limitation of every approach (such as measuring current).

You can inject a current into a superconducting coil and take measurements of the resultant magnetic field as the current circles for an indefinite period of time. I'm not able to see how this approach analogizes to water in a cup.
1.1kg.

The superconductor is "levitating" by being repelled (magnetically) by the platform, which is in turn being repelled (physically) by the scale. If either of those were not true, the scale and/or platform would start moving towards the center of the earth due to gravity.

Really, all it is is a fancy stack of objects.
Fair point, I felt most people would have their own list. Powered flight, semiconductors, commercially competitive solar cells, antibiotics, sterile procedure. Etc.
Everyone has differing manifestations. For some people, this could be helpful.
I decided several years ago that I’m not buying a new iPad until the OS supports multiple users and user switching. With the M series of chips and the amount of RAM and storage on the recent models, there is no reason to restrict it as a single user device except that Apple wants to.
I love how sites are now taking the mobile strategy of checking first and then showing a sugary popup explaining that they’re about to pop the native prompt for perms, and why. It brings me joy to click affirmative on those so I can permablock by clicking no on the native prompt.
Putting the numbers in perspective is always interesting:

The best selling video game handheld of all time, the Nintendo DS (across all its hardware revisions), sold over 150 million units in its lifetime.

Apple typically sells this many iPhones in less than three quarters.
How do you approach the problem of what files to look into to fix a bug? Just embeddings doesn't seem to cut it.
Considering how people are making it at all, within days, with demonstrably poor instructions, seems to suggest manufacturing in mass has massive hope, once some time is given for refining the process.
As is website to website solicitation
Not quite related to 2) but if the superconductors research pans out, portable high field desktop sized MRIs would be in the bag. Current portable MRIs are all low field (and to a certain extent, somewhat useless).
Silently leaving incorrect information in place seems worse for the overall state of the thread than a quick note disputing it.
Collective solutions to collective problems are often just individual solutions applied at scale by many unrelated individuals (on their own).
May be rewriting user's description might help you match code better?

Similar to the prompt engineering for previous era GPT completion models.
Collapsing marine ecosystems are not theoretical risks, they have been happening around the world for decades (if not more).

https://en.wikipedia.org/wiki/Overfishing#Examples_and_evide...

Or did you mean "Don't worry, the impact of oxygen level change is exaggerated, because we'll make sure those fish are gone one way or other!"?
It could not have copied the UDP header. Otherwise you wouldn't be able to put any new protocol on IP without teaching it to every router.
The standard library may not be the best way to learn C++ for several reasons.

1. The standard library is allowed to do things that you are not allowed to do. Because the standard library goes hand in hand with the compiler, it can take advantage of extensions or implementation defined behavior or even what is undefined behavior in the standard.

2. Because it has to be as resilient as possible despite people using macros and naming things, the standard library uses double underscores "__" a lot to name variables. That is not something you should do because those are reserved for the standard library implementer

3. Because the behavior of classes and functions is specified precisely by the standards documents, there is often less commenting that would be normal

4. Because of backwards compatibility, the standard implementation of certain things can be sub-optimal. For example, std::regex is slower than non-standard implementations and may have security issues with untrusted input. Another example is the hash containers unordered_map. The standard kind of forces you into a certain implementation, where others can be much better. The Abseil flat_hash_map containers can be much more efficient than std::unordered_map

This all is not to say the standard library doesn't contain a wealth of information. It does. However, you may need more C++ experience before you can figure out what is a good technique for you to use in your own code, what is suboptimal for you to use, and what is dangerous for you to use in your own code.

If you want a kind of project that is along these lines, I would recommend the following.

1. Implement std::string (but use a different namespace). This will teach you about memory management, constructors, destructors, STL containers and algorithms.

1a. Implement the small string optimization for your class. Make sure you avoid undefined behavior. This will teach you about unions and type punning rules and when you are allowed to cast pointers in C++ without running into undefined behavior and type alias rules.

2. Implement std::tuple. This will teach you a lot of meta-programming techniques.

3. Implement a multi-threaded queue with push and pop. This will teach you about mutexes and condition variables.

3a. Make it lock free. This will teach you about atomics.
I mean, I'm not saying he's doing that. But that's certainly what I would do. I made some inquiries at one point when I was living in eastern europe, through an American acquaintance who worked for a US drug company that sourced materials from labs there, about what exactly would be involved in taking a patent paper and having one of their subcontractors turn it into a drug. I got some interesting information that made it seem plausibly within reach for someone with a high 7-figure net worth (my plan was to get a price and crowd-source the cost from a network of people suffering from the same thing), but I didn't end up pursuing it. The molecule in question was fairly large and difficult to synthesize and purify, though.
Circular particle accelerators like the LHC, fusion reactors and quantum computers all obtain a large part of their complexity and expense from the cryogenic refrigerators that are necessary for them to work. It goes unnoticed because people think of it as a "solved problem," but keeping tons of material at liquid nitrogen temperatures takes a lot of energy and huge apparatuses.
Very good point. Don't need to get your bags past Customs then.
> No, but I really don't give a shit either.

Nobody's asking you to personally fight for everything. Life truly is too short for that. All we're asking for is your tacit support, or failing even that, your abstinence from the conversation.

I don't personally have time to look after stray dogs in my area, for example. But I sure as hell don't come out with "I looked in the mirror and decided I don't give a shit" when I meet someone who does care about that. Not online and not offline. Instead I'll be supportive and tell them how amazing they are for spending their valuable time on this.

Even if it's something I don't personally care about at all, or even if I think it's a massive waste of time but I can see it's important to someone else, I'd still never tell them that I don't give a shit.

Is it too much to ask you to have the same respect for people who care about important issues like online privacy? If it's not important to you, that's fine! Go be somewhere else instead of interrupting people who do care about this. There's about 500 million other conversations happening on the internet at this very second. Surely one of them is something you actually do care about enough to engage with in a positive way?
Hey, the same Ray Jardine that changed rock climbing with his invention of the spring loaded camming device. What a guy, I had no idea his influence reached beyond the world of climbing.
How long until the first fully autonomous anti-drone drones are developed?

We could call them Hunter/Killers.
As usual, I almost don't even mind clickbait on HN because the comments end up providing actual content on the topic.
India Restricts Import of Laptops
In terms of basic tech, other than CRISPR what are you thinking of? Smartphones + internet are important, but are more combinatorial. Early quantum computers are cool, but niche (and even if perfected, seem to have application for breaking PKI). Reusable rockets are great, but not fusion. The standard model is locked in, at least up to LHC energies modulo sensationalist PR.
They have had a free tier since they launched over a decade ago. I think they’ve found a way to monetize that traffic or at least the data they collect on the sites they proxy because it’s survived so long.
It took a few minutes sleuthing to validate that my gut reaction of "but there's way more than 50000 movies" was right ... But thanks to UNESCO statistics (http://data.uis.unesco.org/) I've got the sad truth.

Your 50,000 movies is a lot but its not even half of the movies made since 1995 that UNESCO were able to reliably cite data for. I can't deep link to the exact spreadsheet of data but it's under the culture data section and its feature film statistics. The total number of feature films (which will exclude some things like short films and other stuff based on various data processing considerations) produced around the world between 1995 and 2017 is at least (because there are likely more movies shot than produced) 107,432.

Assuming your "over 50,000" is the usually marketing line and being generous and assuming its somewhere between 50,000 and 55,000 movies, then if true that's approximately half the "feature films" produced between 1995 and 2017...

A a sensible lower bound extrapolation based on the data is in the range of half a million feature films (again recognising this data is likely excluding things we would on average collectively call a movie), making your service closer to 10%... or possibly even lower...

Over 50,000 movies feels like a lot until you dig into how much media we make as a species. That's just feature films, likely only ones with a theatrical release (I don't think I can reliably translate a lot of the source documents even if I wanted to validate the source data criteria myself, hence I'm using the weasel word "likely"), meaning its excluding a LOT of film/movies, and its only for 1995 to 2017, covering an era where the "amateur film" scene was rapidly exploding due to falling costs of the technology behind recording, editing, and distribution a "movie"...

None of this is to tear down the effort of hard working preservationists... both legal and illegal. I agree with the archivists I've had conversations with, whose collective opinion can be summed up quite simply. "Any copy is better than no copy."
There's a whole thread on the GOG forums about games in general that are outdated or missing features on GOG. That's why I don't buy games on GOG anymore.

https://www.gog.com/forum/general/games_that_treat_gog_custo...
You know all those bird scooters people leave lying around cluttering up the sidewalk? With a room temperature superconductor they will become hover scooters cluttering up the sidewalk!

And all of the high voltage transmission lines we want to build but can’t because of permitting reasons would have zero energy loss if we actually built them, which we won’t.
Hey Jacques, It's been fun watching your comments on this, you're very knowledgable. :) I had a question, I see some "we made a totally perfect/pure LK-99 it didn't work" - is pure/perfect what they should be going for, to me perfect/pure != correct, however I knew literally nothing about this subject till this week so I have no idea what I'm talking about. Thank you.
I'm well aware that the majority of people don't want anything to do with homeless people. I'm saying this needs to change. It's exactly this attitude of not wanting to deal with people they find inconvenient that ostracises and stigmatizes them further, cutting them off from the support they need and leading to further antisocial behaviour. It's particularly unfair since they're typically homeless through circumstances beyond their control. They're people, just like us, and they are part of the community.

If you'd like to gain more of an understanding, I think the best way is to talk with them directly about their experience. Volunteering is an excellent way to do this.
Long, hard labor should be rewarded. And it is. They're receiving a salary, and now fame. That's more than enough.
This made me realize that recent openAI tech is able to cut through misleading or confusing images, even finding the potentially inferred humour or absurdity layered in the images. I wonder how we’ll find a way to trick that kind of technology as well.
Because for better or worse, those services are transforming the output. Arguably in not a very valuable way but they are transforming it nonetheless. Whether or not you find that transformation useful doesn’t change the fact it is happening.
IPs are IPs no matter what way you are cutting it. There is no other universal way to address internet resources yet (as adoption is still slow on ipv6), so this is rent-seeking in the same way a toll road on public roadway that has existed for 20 years is rent-seeking.

Edit: furthermore, in both of your examples you can just go to another provider or not use those services. If you are locked in to AWS, you HAVE to pay this price.
Really grateful to know you’re still with us. I really appreciated your last post on here, and it also made me want to cry. I lost both my parents to cancers and every person we lose is a tragedy that we should be willing to do much more to forestall.

Thanks for reading. And for everyone, appreciate every day that you get.
Isn't 30% the standard besides epic store?
I've noticed an influx of robocalls that get through my pixel 4 spam call filter. Recently when I get these, unless I'm in a hurry, I play nice with the robot and they connect me to a real person. Either I'll waste their time by acting sincere but stupid, or I'll tell them a sob story, eg, sorry, I don't need your home insurance because I got fired from my job, so my wife divorced me, and now I'm homeless and living out of my car.

What I'm really hoping for is a real-time AI app that can (a) understand what they are saying and generate plausible time wasting responses.
It is in the book 'Dark Age America' by John Michael Greer, he does make mention of this that any one reading that book and is still fairly young, there will be a day when they have their last bit of seafood.

That is one of those books, you hate that his vision of the future looks so plausible.

It is a shame that in recent years he went full an anti-vax with Covid even though he explained why that kind of thinking had issue in that very book. He has also started engaging in bizarre conspiracy theories about a lot of things.
From a 1960's screed about cars 'An automobile is a great thing when you're the only one that has one. And a terrible thing when everyone else does'

Same can be said for large suburban houses.
The thing is about Mozilla of today is that the leadership isn't committed to the fundamentals -- privacy, security, functionality, and control by the end user.

At this point, Brave is a more promising bet than MZ.