skysight-inc/HackerNews huggingface dataset:
Agreed. Battery-powered LED booklamps are incredible nowadays. We get around 20 hours out of a dimmable USB-chargeable booklamp we got for around 12 EUR and it helps us a lot as a nightlight for new parents.
This was a great read, and impressively dense with graphs and historical survey information about all media markets. I happen to have been wondering just today what led to the rise of a phenomenon like the Beatles at just that point in time, and whether it was a specific technology, and then this answered it: portable transistor radios!

I'm presently building heysync[1], an app to bring asynchronous audio to work chat, and I thought there might be more about remote work and audio communications in here, but it made a compelling point that the largest visible motion is in entertainment audio today. At least it did note at the end that entertainment isn't the whole audio market ;P

1 - https://heysync.chat
I do not understand how you can have acceleration without changing position (at 10:06). Acceleration is the derivative of speed, which is the derivative of position change. If the position change is zero, how can the acceleration be non-zero?
I generally support the EFF and think netizens need far more protections than they have, and those need to come through legislation. But I don't get why this mandated interoperability is a good idea.

Mandating data portability is one thing, but having the government decide that a company must provide an api seems absurd to me (so far: it's a new idea to me).

In the meantime, dear EFF:
- Why hasn't the EFF created boilerplate privacy agreement clauses that companies could adopt to prove their ubiquitously claimed "utmost concern for user privacy"?
- Why isn't there a vision of how companies could maintain the provenance under which each datum has been acquired (and therefore when they can/can't be shared/sold/etc.)?
- What meaning does any privacy agreement have (no matter how consumer friendly) if it can be changed at any time?
- Why do NO companies promise to protect user data in the event of an acquisition (in fact they promise the opposite).

These seem like action items right down EFF's lane and I keep waiting year after year for the basics to be covered. I criticize as a friend (and small donor).
As someone who has worked on "both" interpolations and image compression in a geoscientific context, the issue is specifically what is the model for the signal. If the model is accurate enough, then yes, removing independent noise is of great value.
In my worldview, the big problem is what is the physics behind the signal, and where precisely does it change from one characteristic class to another.
Those are the hard problems.
A couple weeks?
NewsHour is great. Litigation of the petty partisan crap is restricted to a 10-15 minute segment on Friday evening.
AUCTeX 12.3
My company is looking to replace JIRA. We use Kanban. Has anyone had experience with this or other products that you'd recommend for a Kanban workflow?
> the parabola is so strongly curved? Spacetime is nearly flat, so how can a straight line become such a steep parabola?

I suspect that the answer is that this is a false comparison.
HelloStory – the largest repository of public domain childrens books on the web
I still don’t get it. If the author is into FOSS and could choose between one of the FOSS servers or the Catalan one... how would you choose? On Twitter I have 3 groups of people I follow (tech, sports, politics). Choosing one topic for a server wouldn’t that mean my local timeline would have people going on and on about one of my topics, but virtually nothing about the others? That would be extremely boring.
That's a very ungenerous characterisation of the show. Melvyn is very careful to keep a coherent progression in each episode, and he invites experts in fields relevant to the topic at hand. Among the ~1,000 episodes I'm sure there are some weak ones, but the way you frame it is as if British academics are not capable of discussing topics outside of their own culture or Melvyn is some amateur host who just wants to hear some pop history fun facts.
OpenDoor and Virgin Galactic both went public through Chamath’s SPACs. It might be a little early to judge if they are good SPACs, we’ll see how they are performing several years from now.
Under special relativity, everyone and everything moves at a constant speed `c` through spacetime. If you feel like you're not moving, it's because all your speed is being put towards travelling faster through time. Conversely, if you manage to move very fast through space, the world around you will appear to speed up, because you've had to trade off some of your forward travel through time so as to travel in space; the rest of the world is moving forward in time faster than you are.

So you can change your acceleration through the time dimension of spacetime, by dint of changing your acceleration in the spatial ones.
The basic aim of Xenops is to be able to view properly typeset math blocks, tables, and TikZ diagrams without having to constantly recompile the document and view the PDF. Such content is rendered automatically, and asynchronously (using emacs-aio), as the cursor moves in and out of the content blocks.

So it's a replacement for the preview-latex functionality in auctex (but other than that, it is intended to be used with auctex). It's intended to be used with plain .tex files, but you can also use it in org-mode.

There are several other features aimed at making working on math-heavy documents pleasant and you can also execute Sympy and Mathematica code to produce symbolic results as LaTeX-typeset images.

A video demo of Xenops is here: https://www.youtube.com/watch?v=GNS-ZFVaFM4
You just nailed it.
The whole thing feels like reinventing the wheel of ML.
Yep. Orbits are always conic sections. Which sometimes inconveniently intersect with the surface of the thing being orbited.
if there is no force as gravity why does the curvature shape cause movement? why foes curve imply a movement at all?
While not technically a "purchase", I also must say that this year, no single product even came close to the donations I made to those who protect the environment and fight climate change.

Now, every time I consider a purchase I ask myself: "do I really need this?" and if the answer is no, I forgo the purchase and donate the same amount of money instead.

This "negative consumption" turns my feelings of gloom and helplessness into a sense of purpose and power.

I can only imagine how awesome it must be to be able to donate almost a whole salary!

Can you please share some of the charities you've found to be trustworthy?
I have a very minimalist lifestyle, lining by myself in a 30sqm one-room apartment.

However:

Water filter (Amazon Basics)
Dimmable remote controlled light bulbs
Good 2.1 speaker set

I was especially surprised about the water filter. Living in Germany I am used to drinking tap and not having to clean the leftovers of lime from the kettle is a nice thing.
As Local News Dies, a Pay-for-Play Network Rises in Its Place
There’s a time and a place. I love the socratic method and use it often.

But when production is on fire, put out the fire first, then go into a series of probing questions about how fires happen.
Which one could easily address when formulating an question by making clear why this approach is taken (and who knows even if you know what you are doing, there might be really a better way to do it somebody discovered).
> STARTTLS adoption is well over 90% now.

That makes me wonder if it would be reasonable for a diverse group of email providers (large and small) to announce that they will add a 1 hour delay to emails received from or sent to servers that don't support STARTTLS. Perhaps each year that delay could double, until those non-compliant services became basically unusable.

To make this change even less controversial, users could be given the option to whitelist certain email addresses so that exceptional use cases could still be supported.
Here's a short video explaining how it works: https://youtu.be/EOSFKGay5Hg
Could you please share a link for the hammock? Thank you.
My understanding of General Relativity[1] is that mass distorts space-time, so an object traveling in a "straight line" through distorted space-time will curve with that distortion.

If the object's velocity isn't enough to traverse the curved space-time, it will move toward the center of the mass generating the distortion and fall out of the sky.

If the object is traveling quickly enough, it can continue traversing the distorted space-time and orbit that mass.

If the object is traveling even more quickly, it will traverse the distorted space-time and continue on without orbiting the mass.

In all three cases, from the perspective of the object traversing the distorted space-time, it continues to travel in a straight line, as it's the space-time that's distorted.

A (flawed) analogy would be riding a bicycle between the peaks of two identically sized hills. Starting at the top of the first hill, you coast down increasing your velocity.

Once you reach the bottom of the first hill and head up the second, your velocity decreases.

If your velocity at the bottom of the first hill is too small, you'll go up the second hill and as your velocity reaches zero, you roll back toward the bottom of the hill.

You will pick up velocity and then roll back up the first hill, then down again, then back up the second, etc. until you end up stopped at the bottom of the hill. This is akin to falling to the center of the distorting mass.

If your velocity is high enough to carry you back up to the top of the second hill and then stop, you'll roll back down and get to the bottom with the same velocity you had coming down the first hill. You'll then oscillate between the tops of both hills. This is akin to orbiting the mass.

If your velocity at the bottom of the first hill is enough to carry you past the top of the second hill, you'll just keep going after reaching the top of the second hill. That's akin to flying by the mass.

It's a flawed analogy, because in a curved space-time the directional portion of the motion vector doesn't change.

As John Wheeler[0] simplified it:
"Mass tells space-time how to curve, and space-time tells mass how to move."

[0] https://en.wikipedia.org/wiki/John_Archibald_Wheeler

[1] https://en.wikipedia.org/wiki/General_relativity
We're moving through spacetime with a constant speed, so the faster you move through space, the slower you move through time.
https://www.youtube.com/watch?v=1vEjGKhSx8o
It's not that the absence of gravitational fields slows time up relative to observers in more massive reference frames, it's that the presence of gravitational fields speeds up time relative to observers in other reference frames.

You would age about the same as you would in microgravity. You could get closer and closer approximations by going into Earth orbit, solar orbit, and galactic orbit. Each approximation has less gravity, so time would pass slightly slower relative to an Earthly observer at each step, but the effect diminishes.
How do I become a better programmer (NOT competitive programming)
I have resources to improve for myself for algorithms on whiteboards, but how would I improve myself on programming in general?
It was ironic...but with pulseaudio i had LOTS of problems.

BTW: Why Pulseaudio on a Server?
Surely I'm not the only one to be disappointed that there isn't a very large and ancient feline sneaking around among the lines eating mice and other small animals.
Connascence: A software quality metric and a taxonomy for types of coupling
Same here. So fast it's more of how fast do I want to go, where do I want to be instead of working the clutch, shifter, and trying to plan ahead in a much slower car. I quite enjoy waking up each day with 300 miles of range instead of trying to figure out when/where to add a gas station to my errands. My Subaru was quite needy, oil changes, checking the oil, head gasket problems, gas filling, brake pads, engine maintenance, warming up before pushing it, taking it easy before you turn it off (because of the turbo) etc. I'm at 14,000 miles on the Tesla, and I'd have done 4 oil changes, 56 gas fill ups, and I suspect a few other scheduled maintenance trips already.

I moved to a new city and a nice big map has been a great way to visit a city and the being able to speak my music selections, destinations, etc has been a pleasure. I now regularly visit 3 nearby cities (all within 30 minutes) for entertainment, tasty food, and hiking. I look forward to time in my model 3, I wish everything worked as well. I'm surprised at how primitive other nav systems are, is it really that hard to match top of the line Android/IOS touch screens and graceful handling of things like pinch to zoom?
It is a mess -- one that confuses me every time I think about it. But the convention is that 12:00 PM is noon, and that 12:00 AM is midnight, right?

This is exactly backwards.

Consider 11 AM. What does the 11 signify? 11 hours since midnight. 12 AM then should be 12 hours since midnight. "But 12:30 AM would then be in the afternoon, which surely should be PM!" Well, 12:30 AM would be 12 and a half hours after midnight just the same way that 11 AM is.

The REAL problem? Using 12 on the clock instead of 0. If we had 0 on the clock then 0 PM would be 0 hours past noon, the same way that 1 PM is 1 hour past noon. 0 AM would be 0 hours past midnight.

In fact, to make sense of whether noon is AM or PM in our current system, ask yourself: If we were to use 0 in place of 12, would AM or PM make sense?
Off topic, but in reality, the trajectory of a ball thrown on Earth is not a parabola, but an ellipse [1]:

> under the laws of gravity, a parabola is an impossible shape for an object that's gravitationally bound to the Earth. The math simply doesn't work out. If we could design a precise enough experiment, we'd measure that projectiles on Earth make tiny deviations from the predicted parabolic path we all derived in class: microscopic on the scale of a human, but still significant. Instead, objects thrown on Earth trace out an elliptical orbit similar to the Moon.

[1] https://www.forbes.com/sites/startswithabang/2020/03/12/we-a...
It’s something of a philosophical question. We tend to think of distant galaxy’s as if we are viewing them via some FTL means with a single consistent now. NASA for example tracks distant Mars probes like that rather than marking timing based on when the signal was received.

Alternatively, you can think of everything that could impact you as something of a now light cone. The second view has the universe existing as a 3D surface in 4D space time which means objects have a temporal width for each observer. That can be a really useful mathematical model.

PS: Edited the above several times for clarity.
Could you elaborate on why it's false?
In /proc/meminfo, what is the difference between 'MemFree' and 'MemAvailable'
Yup, ideally commute on bike (or e-bike), and use cars for bigger errands/trips.
Sony will let PS5 owners record their voice chats and snitch on fellow players
> So if you’re in intergalactic space, time is actually passing very quickly in the higher gravity environment of a galaxy.

Not "very". Look up the actual equation, it's a really easy one. AFAIR for a standard stellar black hole, you'd need to be within meters from the event horizon to get any substantial time difference.

Thus the implication that Interstellar's Gargantua was an SMBH, i.e. probably the center of it's galaxy.
> my question (and the answer I'm looking for) is often very simple

If you're asking questions then confidence that the answer - which you do not know - is simple betrays the reality that you've become falsely confident of your understanding despite the fact that you don't know what you're doing or else you wouldn't have a question at all.

Asking questions is a skill, whether you are asking the questions of a machine or of people. An insistence that everybody else is doing it wrong because you get unhelpful answers is a mistake nobody else can fix for you.
> You can choose the one that resonates the most with you.

Thank you for the kind comment, but I have browsed the servers before and nothing resonated with me. I don’t want to be attached to any one “movement” and I can’t be bothered to run my own server for something I’m not sold on.
A farm.

Room to roam, largely self-supporting due to our own forest for heating and building, own water well, own waste water facilities, no building permit needed for farm buildings, own land to grow whatever we please. My children get to grow up in the countryside, where city-dwellers have empty syringes and crack heads on their doorstep we have elk, deer and wolves. Where they hear police sirens at night we hear owls and foxes. Meanwhile we have a gigabit glassfiber connection feeding into a rack I built which houses enough cpu and storage to be mostly self-reliant on that front as well - no external cloudy services for me, thanks.

The more independent we get, the less money we need. I just built a new 230m² barn which will be used partly as a new stables, partly as a veterinary clinic (my wife is a horse vet). On top of that barn I'll put enough solar panels to make us mostly electricity-neutral through overproduction in summer (which will be fed into the grid) which will be another step towards self-reliance.

If you're mechanically-inclined, have two left hands (I'm left-handed, get it?), not afraid of some honest blood & sweat and able and willing to take up such a project you won't regret moving to the countryside and taking up farming, part-time or more.
I'm a bit confused, how does a 2D graph with a curved X axis work?

Does this just mean to say that if we saw things distorted with an outward curve, then something that is moving in a curve would look to be moving in a straight line?

And what's the point of such an observation?
“How would you implement it then?”

Chill, bro. I said “seems hand-wavy” and “I’d love to be wrong”. I was hedging my bets and clearly indicating this was a surface-level read. I shouldn’t have to have a better alternative on deck to point out something in the codebase that didn’t seem to be privacy-friendly. No offense was meant.

Since you asked how I would do things: I would have had a clear and detailed security-specific document or section of the readme to detail in what ways it is peer-to-peer and in what ways it is private. I would have probably gestured towards the threat model I used when designing the protocols, but —- let’s be honest —- I’d probably be too lazy to document it adequately. As far as I can tell, there’s one paragraph in its developer guide on security and two paragraphs on peer-to-peer communication and I wasn’t able to get a good read on its concrete design or characteristics.

> Note that the DNS queries are only done when 1) there's no host in the local cache and 2) no trusted peer has resolved it either.

This wasn’t clear to me from my first spelunk through the readme or the docs. Are you affiliated with the project? Is there a good security overview of the project you know of?

> I mean, DNS is how the internet works. Can't do much about it except caching and delegation to avoid traceable specificity.

What I meant to say is, I was not so sure that the google public dns could be considered private. But nevermind on that, I can’t confirm their logging policies. I’m probably just paranoid about how easy google seems to build a profile on me. So yeah, as mentioned, just my initial read.
Don't forget about NILFS2. Designed for low-latency. log-like structure. Data and metadata checksums. Been in the kernel for several years.
I think of it as being because the ball has mass and photons don't. So Newton's Gm1m2/r^2 = 0 for photons, and you have to use Einstein to measure the "force" on a photon.

But because massive objects also cannot move as fast as photons, we're probably both saying the same thing from two different perspectives.
I thought it was a much less clickbait title than the standard “you are using X wrong”
A coup is a threat to democracy, election rigging, or coercing others to vote or barring them from doing so.

Ads and propaganda aren't - it is absurd that this hyperbole is so blindly accepted.
Neat. Waiting for “the drop” or changes in the music that “tickle my senses” makes me wonder if an emergent Property (the pleasurable sound from the composition of base, kick, Snares, “woop” in this case) can be covered with PCA.

More than the sum of its parts (emergent) is to be reduced to its principal components.
> May i infer from your question that you have not experienced the fediverse (nor software like Mastodon) yet?

Thank you for the kind reply, but I think that would be an incorrect inference, because I actually provided you with a more natural solution to “branching out” than a server timeline. Use a user’s own social graph to discover new content. I don’t want to be associated with a movement, hobby, or niche club. I just want to be myself.
For those interested in this series, you might also like Desert Island Disks, which is a series that's been going for about 70 years with over 2000 episodes: https://www.bbc.co.uk/programmes/b006qnmr/episodes/player

It's a great listen for short drives and commutes.
I get the feeling that even it all does nothing but go hideously wrong, we might just stand a real chance of producing some genuinely hilarious unintentional comedies.
Depends on the distro, but it's trivial in ubuntu-based and no harder than the rest of basic setup in arch (the only two I have recent experiece with). I'd argue that any distro where it isn't easy is a good reason to start looking elsewhere, absent any specific conflicting requirements.

Not sure it matters if it's full-disk vs just home directory, but full disk is easier to reason about and I don't recall an OS that can do homedir easily but not full-disk (there very well could be one, just none come to mind).
Good point; this becomes more obvious if you imagine throwing the ball up and then immediately collapsing all the mass of the Earth into a single point at the centre. What path does the ball follow now? It's probably following a path we would more usually call an "orbit", and it sure looks a lot like an ellipse. Now just put the mass of the Earth back where it was, and notice that the ball hits the ground before it can trace out very much of its orbit.
Smartphones offer 960fps video capture since a while now.
This kind of solution doesn't solve the problem for laypeople without the technical acumen to buy+manage domains. Which should be a concern for all the Mastodon/ActivityPub supporters who want to see federated solutions overtake centralized ones.

Additionally, DNS-based identity migration doesn't address the grandparent's real problem, which is that they feel expected to choose just a single community to live in in the first place. They want to live at the intersection or the union of multiple interests simultaneously, which doesn't fit the Mastodon model of social interaction (but does fit e.g., Twitter's).
You haven't heard of Sepp Holzer apparently
Thank you for clarifying. I posted some critiques around activity pub last year and a developer assured me that they are already aware and working to solve them.

Have you personally been involved in pushing forward more portable identities / user data? Or do you believe that things should stay as they are?
>millions living in homes built from pieces of wood and metal hand-gathered

CA has 130000 people living in the streets so sadly not too far off on that front.