skysight-inc/HackerNews huggingface dataset:
Todd Rider's 1995 PhD thesis poured cold water on all these exciting aneutronic fusion approaches. He maintains to this day a good presentation covering various approaches and what is feasible and what isn't. Current version at https://secureservercdn.net/198.71.233.129/f5o.aea.myftpuplo...

(You can find links to the thesis and papers and the latest presentation at https://riderinstitute.org/research/ )

tl;dr: Fusion of heavier nuclei (like pB11 discussed here) are not feasible due to the bremsstrahlung output being higher than the fusion output. Ways around that would be, in theory, non-thermal plasmas, but these are very hard to do because the thermalization time constant is much lower than the fusion time constant. Alternatively one could, at very high efficiency, recycle the bremsstrahlung energy via some apparatus to heat the plasma. It's very unclear if any of these approaches are even remotely feasible.

Now for this particular approach in TFA, described in the open access (as a former scientist who no longer has institutional access I'm very happy about the open access trend!) article https://www.nature.com/articles/s41467-023-36655-1 (thanks to user fghorow for providing the link in a sibling comment). Quoting:

> And the physics challenges can be overcome. As demonstrated in ref. 2, by using the recently updated values for the p11B fusion cross-section3 and properly accounting for kinetic effects, it can be shown that a thermal p11B plasma can produce a high Q (where Q = fusion power/input power), and even reach ignition (where the plasma is sustained by the fusion reactions alone).

So they claim the old values that e.g. Rider used for dismissing pB11 fusion as infeasible have recently changed sufficiently to make it feasible.

Further continuing:

> By employing a plasma with a low internal magnetic field and operating in a regime in which the electrons are kept at a lower temperature than the ions, the radiation losses can be further reduced1; and by maintaining a non-equilibrium population of energetic reacting ions, the fusion power further increased4.

This, again, is about non-thermal plasmas. Theoretically possible, but very hard to do in practice.
> It's an emotionally charged subject

Agreed, and for no good reason too. All these notions of "purity of the blood" and that nonsense are shown up to be completely false when studied. We all collectively share lots of genetic code from many diverse ancestors, so I don't see why folks get all worked up about it.
No, but roughly 18E3 football stadiums worth of them.
Grit | Senior+ Engineers (ML, PL, Design, Backend) | New York, San Francisco | Full-time | $120–250k + equity

We’re building software to automatically fix technical debt. We do this by combining expressive static analysis tooling (we’ve built a developer-friendly query language for code) with machine learning to automatically migrate code to new patterns and platforms. We’re in private beta, but have already deployed thousands of successful changes for beta customers and have raised a $7M seed round from top investors.

We’ve got lots of fun challenges at the intersection of machine learning and programming languages. Our stack is Scala, Rust, TypeScript, Python, and Kubernetes. We’re hiring for both smart generalists and PL/ML experts who are interested in collaborating on problems like automatically inserting new types into codebases and using unit tests for reinforcement learning.

Here are a few reasons you might be interested in applying:

- We work fast and focus on shipping, with a single meeting per week (demos!).

- We’re working on the edge of the possible and doing deep technical work in parsers/language design and machine learning.

- We mostly work in-person in New York and San Francisco, but remote is also possible for outstanding candidates who have proven success in a remote model.

- I’m personally committed to giving real feedback to everyone who applies.

Find out more at https://www.grit.io/careers or email morgante@grit.io.
When facing problems, it's crucial to shift our perspective to find solutions. However, sometimes groups get stuck in the root cause analysis process, which can generate more conflicts and problems instead of solutions. That's why reframing is a powerful approach to navigate challenging situations. By reframing the problem, we can uncover opportunities within it and overcome biases collectively.
That's a bit like asking "what sort of time investment is required to get vaguely competent at POSIX?"

Ask yourself what you need Nix for first.
> Ireland and Malta are in the EU, both with English as the official language

It’s a nitpick to be sure, but shouldn’t it be “ Ireland and Malta are in the EU, both with English as AN official language”
Royal Astronomical Society: all journals to publish as open access from 2024
> or did you replace 50m of EC2 with 48.3m of EC2 (not really so impressive)?

I'm failing to comprehend how that's not impressive. Bean counters would still love this type of savings.
Indeed. It is very telling that the article characterises it as a "crisis". We are facing the twin existential threats climate change and environmental collapse, and population is a staggeringly huge driver of both those problems. Reduction in population is generally a good thing.

That's if you care about existential threats. Most people don't. The media doesn't talk about this. It's not a safe topic to discuss and if you dare to you are instantly politisied and become "the scary bad person".

People care about the economy, they care about jobs, they care about growth, they care about having kids, they care about petrol prices, they care about a bigger TV and having a lithium battery drone they play with for a couple of weeks and then put it in the cupboard, they care about driving a 4WD in a city because the advertising made it look rugged and outdoorsy and anyway, Fred has one so you need one too, they care about having an electric car because it's painted "green" (it's not; the environmental costs are abstracted away to a place where you don't have to think about it).

"Crisis"? Yes, but not in population.
Accurate and coordinated time has been an important challenge since at least the 15th century
It has to be built from source.
https://parkchicago.com/about/

> CPM does not – and never has – set pay station parking rates. The City retains exclusive authority to determine and establish rates, set hours of operation, and place, add or remove metered spaces. The initial five‐year rate schedule, which ended in 2013, was approved by the City Council to align with rates comparable with other large U.S. cities. Prior to the agreement, parking rates in Chicago were much lower than the national average. Seventy percent of meters had not seen an increase in 20 years.
There's a glimpse of the Amazon delivery dystopia on tiktok where the driver shows the monitoring camera and goes through the rules the system enforces. (Favourite ones: can't drink water while driving (even if stopped), can't touch centre console (e.g. for airconditioning, radio).)

Because of the delays due to rules (vehicle in park before unbuckle, seat belt buckled before moving, door shut), and the huge penalties for forgetting a rule even once, it is common for drivers to park and then run back and forth to the truck.

https://jalopnik.com/watch-an-amazon-driver-explain-the-comp...
1KHz is faster than 1MHz? Our computers are getting slower and slower?
I often hear people saying say they're ok with not getting married and having children because they have their (also not married, childless) friends, pets or other sources of comfort/distraction. Just kick away these other supports to make people feel isolated and fearful and they will act accordingly. Give up on financial perks for people with kids, shift to negative reinforcement.

Also, promote generation warfare in the form of painting the current generation of people in their 30s and 40s as feckless hedonists responsible for the economic troubles of the generation below. Probably half of older people would go along with it so this can become a political wedge. Make it clear to young people that their careers will ultimately be crushed by the dying economy unless their generation has children.

All that's needed is a Trump-like figure who isn't scared to sow discord
It’s rather humbling how many languages are spoken by individuals there - and my experience is that people there often have other languages in common too.
Wow, there's clearly pros and cons for both! It's all about compromise and the way it currently works, works for the majority of people that don't even experience the downsides in their day to day life.

Like having to coordinate meetings around the world or figuring out what time it is for their friend on the other side of the world. Most people never deal with any of that. They just want it to be 12:00 and bright out when they eat lunch (or whenever they eat lunch).
You can't, but the USPS is legally obligated to have a single flat rate for domestic deliveries, which is extended to certain former territories as a goodwill measure. They attempted to charge international rates many years back, but the effect it had on the affected countries' economies was so significant that the change was immediately rolled back until they had a viable alternative, which hasn't emerged.
This seems wildly easy to exploit.
From the article:

> We might know water as H2O, forgetting everything that’s dissolved in it. For example, a small vial of the Kidd mine water transferred in 2020 to Ingenium—a Crown corporation that runs the Canada Science and Technology Museum in Ottawa—features sediment at the bottom. That’s iron oxide, which precipitated from the water after exposure to oxygen from the air.
Finley (YC W21) is hiring a B2B/fintech growth marketer
Agreed. Linux perf tools are perfectly acceptable for all but the most ultra-extreme optimization tasks.

VTune allows you to determine where pipeline stalls are occurring at the instruction level (for that last 2 or 3% gain in performance). I haven't worked with ARM profilers (way out of my price range), but I assume, given the exorbitant price, they provide the same sort of in-depth analysis. Probably a handful of people on the planet that need that kind of in-depth analysis.
And at that point I would expect fine dining service. Someone coming to my table asking for order. Then bringing it with condiments. And when I leave someone will come and pick up the trash.
The pay is better though.
Nix is not a tool, it's an ecosystem of various composable tools.

Personally I use it in complement with Ansible and systemd to deploy complex interdependent software without having to build and orchestrate containers.
> birth rate crisis

There is no crisis. There is the fact that birth-rates are dropping. It might be bad for the economy (gasp!), but it's great if you're worried (and you should be) about climate change and environmental collapse.

Population is a major driver of those things, and reducing the population takes some pressure off.

(... and there's the downvote. The truth is not just inconvenient, it's unpalateable).
And for an even better example, look at neighboring Finland. Finland famously gives tons of support for new moms, and their society is quite egalitarian. And their fertility rates have absolutely crashed to right around Japan's levels.
I made this [1] 6 years ago reads HN top 10 articles, top comment every morning... this thing has been sitting on my shelf since then playing everyday lol. Which is amazing because it's a janky breadboard that I never put on a solderable board.

Anyway regarding summary... I looked at rapid api before they have a sumarizer on there, can plug it into polly. It seemed decent but I wanted my own summary based on my own reading process... but never got around to it.

[1] https://github.com/jdc-cunningham/python_aws_polly_hacker_ne...
If you’re on the same planet and or moon thereof, it should “be” the same time wherever you go. Everybody should use UTC always. No more scheduling “wait did you mean EST or CT” bs, no more timestamp BS, no more BIOS —sysclocktohw. We’re evolved apes, we should use UTC.
It sounds like it was the plane's first revenue flight, too.
I'm Yuval,
I have severe ADHD which lead to me being kicked out of highschool.

Built a few popular open-source projects, but never something commercial.

what's the hook?

very technical, born with no innate social norm capabilities.
Expect stuff like door-to-door skyscraper salesmanship, in-person hazzard marketing, etc... crazy stuff :)

I promise you no spam.

I'll be sharing my #buildinpublic journey here: https://twitter.com/yuvalsteuer

Feel free to leave advice thriugh DMs
> * If I live too far from the UTC, the day will change in the middle of my working day. My friend said they'd see me on Tuesday. Do they mean the day that had Tuesday at the beginning of it, or the end? What does "Tuesday morning" mean when morning is at the end of the Tuesday? Is "morning" the beginning of the solar day or the beginning of the clock day?

The problem there is the lack of specificity, and timezones don't help or hurt that. It's already not clear if "Tuesday morning" means my Tuesday morning or yours. Maybe they could say "Tuesday around 1400" and we would both know when that was without considering the offset.

> If you get rid of time zones, you don't simplify anything. You trade one set of complications for another.

You do make a lot of things simpler by not having to figure out offsets. Sometimes you still will, but it will be less often.
You'll come around.
Even better - if you use this Secure Note feature you simply can't get the note on a Windows PC.
I consider them equally greedy in term of data collection and tracking.

But if I have to choose, I prefer giving away my data to China than the US. I consider China to be a bit less hostile
Memorize a Few Basic Numbers to Have Intuitions About Other Things
When everyone works on the same timezone it's the same as not having timezones.
Show HN: ChatGPT with Audio Input
Yesterday OpenAI released ChatGPT and Whisper APIs: https://news.ycombinator.com/item?id=34985848

Since ChatGPT was released, I've always wanted to be able to input queries by speaking instead of typing.

It just seems like it would be a much more natural way to interact with the system.

So here's a simple python script that leverages the ChatGPT and Whisper APIs to provide an experience similar to the ChatGPT web interface, but with audio input instead of text.

It works like this:

User:
[Recording. Press the enter button to stop.]
Hello?

Assistant: Hello! How can I assist you today?

User:
[Recording. Press the enter button to stop.]
How are you today?

Assistant: As an AI language model, I don't have feelings or emotions. But I'm always ready to assist you with any questions you may have!
Bit of an aside, but is there anyone making the absolute barebones EV? Like the Toyota Land-Cruiser of EVs?

No self-driving, just four wheels, motor and battery pack with whatever is needed to pass safety and standard regulations.
I'm not sure about "podcasts" but this concept could be for sure used in news channels, as we have for example in Germany, hourly. It would for sure save money from our taxpayers.
> why should they be linked?

Two reasons. Firstly, human biology, it'll be better for the people living/working there to experience via things like lighting and having visual clues from things like clocks to regulate their life.

Secondly, for communication with those on Earth in a way that makes sense to both parties. We only use our system of time because it is useful (daylight saving might be an exception to that;) so why bother with a more "correct" version of that on the Moon? It's not like you'll be using the days there if it's light for one Earth month and dark for another.
Getting workers to factories was important during the war.
It's fake because the deduplication isn't a property of the messaging system, it's a property of the system consuming the messages. "Your system" is providing a workaround (duplication) for at-least-once delivery, not the message system.

I think it's also worth noting that your suggested workaround has actually recreated the problem it's intending to solve. If you mark the UUID as "received" as soon as you get a message, how do you deal with duplicates if the processing fails? If you mark the UUID as "received" when you're done processing, how do you deal with the possibility that you'll receive the message multiple times? This can get hairy very quickly.
Also

* Synalyze It! - Hex Editor for Mac: https://www.synalysis.net/

I am not affiliated Synalyze It!, but have been a customer for several years. Generally, I've been happy with it, though it crashes occasionally. The support has been responsive when I've had licensing issues.
Currently putting the final touches on https://www.sheetmonitor.com/

Its a simple tool that plots how data changes in a google sheet over time. So the categories of value per row, number of rows added & removed and some more complex things like averages.

I use it personally to monitor user and finance related sheets that others are editing so I can see how things are changing over time.
I believe the issue is not the price, but that the distribution of wealth has become highly unequal.

We now have 90% who cannot afford to raise kids well. And 10% who can. But no matter how wealthy, each couple can only get pregnant once at a time.

One solution would be to allow extremely rich people to marry multiple times so that they can produce more kids in parallel. But that's going to cause a lot of societal issues when marriable women become sparse for the majority of the population (see China).
It's a web app wrapped in React Native.

https://news.ycombinator.com/item?id=34197613
Not true. Paying account is quite obvious from the female perspective. Sooner you'll be a target for scammers and gold diggers, at best Instagram and OnlyFans influencers will reach out to you more aggressively.
Besides FDroid for Android Apps and Games
What is a viable site to use for publishing open source games and apps for Android?
Unlikely a weapon caused “Havana Syndrome” symptoms
> Shouldn’t we be instead paying them the fair value of their labor rather than this and let them choose how to spend that money ?

What is the fair value? We want them doing whatever they're doing, but we don't want to face the actual cost. So we subsidize the services they need/want, so that they will be willing/able to live there and do those things.

> We tried subsidizing rural broadband for last 3 decades with 100s of billions of dollars with little to show for it

It connected my village and the rural corridors on either side of Santa Fe.

> Starlink on the other hand is able to solve it with purely commercial enterprise not withstanding the small rural subsidy they got.

Everyone I know out here who uses Starlink says it is getting visibly worse as more people use it.

> If the market does not value the important things rural economy produces and is absolutely important then they either start valuing them correctly and pay for it or we can stop producing them

I thought COVID made it very clear that the market doesn't price based on the level of actual need, but rather on the desires of those with the most control over resources.

> It is acceptable trade off in some areas like defense, police, healthcare, insurance, or foundational research where for profit enterprise is not viable but package delivery is hardly one of them.

Clearly, you don't live in a rural area with a substantial drive to local retail. Living without any effective policing is a tradeoff many of us are willing to make, but a return to the pre-Sears days for shopping will empty the hinterlands out in an instant.

There are arguments you could make in favor of this outcome, but then be honest and say that's the outcome you're aiming for.
A megawatt charger might not be cheaper than fuel. It's a lot of power to dispatch. It'll also still take longer to recharge at that rate than it does to refuel.
This is seriously cool. Bots for the people!
> The burden of proof is on you to tell us why women's rights affects birth rates at all.

This is an odd challenge. The relationship between women's education levels and lower fertility rates is a famously strong correlation in the social sciences. There are tons and tons of studies that show that as women's education levels and status rise, fertility levels subsequently drop. Here is a page that links to a bunch of studies,
https://worldpopulationhistory.org/womens-status-and-fertili... . But seriously, just Google "women's education levels fertility rates" and you'll find tons and tons of studies.
What do the issues you mention have to do with this specific airplane?
Paris is building a new circle line, too. Any up to date information about inevitable delays or when it's supposed to be ready?
because they are.
Tabletop RPG publisher Paizo bans AI created content
ChatGPT: Revealing the Technology and Training Secrets Behind Its Power
You guys are awesome! I actually sent an email to jobs@skysafe.io back in November, but I never got a reply.

I’ve had emails get filtered on occasion before, but last week I got my first actual clue when a message I sent bounced back weirdly because (apparently) of an SPF soft fail. Been avoiding digging into SMTP for a long time and it seems the bill is due.

Anyways, I’d be happy to forward the original email I sent on (from mitch@determinacy.io), and I’d be very grateful for an out of band peer willing to tolerate me replaying emails. Thanks!
We have twins that are approaching 4. For a long time we had a latch on the refrigerator because, shortly before they turned 2, they would get into the fridge and make a mess, leave the doors open, etc.

We recently bought a new fridge and haven't put a latch on it. They don't understand that they can open it on their own yet and we haven't told them. Observing this reminded me of the elephant story and it's made me wonder if this is something that could affect them later in life.
Once I had the same opinion and was a great fan of Swatch Beat concept. This text changed my mind: https://qntm.org/abolish
Exactly. Look up the twin‘s paradox - https://en.m.wikipedia.org/wiki/Twin_paradox
The fearmongering is so intense in these discussions, my word.

> You'll either have phones that get bricked because of a low quality cable/charger or people will be mad that their current charger won't work at 20A.

This just isn't a real problem. People's phones don't get bricked like this. USB & USB-PD in particular (required for >15W) has very real safety guards, that have worked very well. The compliance testing is more about getting full speed charges. People aren't mad in Android world because their phone isn't charging at max speed- they understand there's different charge rates.

IPhone users already face this second situation anyways: if you just buy a random certified lightning cable & charger, it's not going to charge your 20W+ IPhone at max speed, and might even potentially drain while charging. Same thing goes for all this complaining about bad cables. Any cable becomes bad over time, Apple cables included. Plenty of frayed busted old lightning cables are in use right now, and there's incredibly little real world impact for this; it all mostly works and people mostly get that their cable isn't quite in good condition, and if it's working less optimally, they get it. This idea that Apple is some magical cure-all is an absurd fantasy.

Apple isn't stuck, the people defending Apple are stuck, inside Castle Apple, and they are too scared to look out over the parapets & see that it's actually a nice day outside.
Most malware does not mess with boot process because it requires higher skills.