skysight-inc/HackerNews huggingface dataset:
> Niantic took a lot of time and effort to ensure that this data was deleted, obfuscated or has as much precision removed as possible, as quickly as possible.

Define "as quickly as possible". How long after the fact can Niantic tell that I was at Burger King for lunch?

If the answer is anything more than a week, I don't think they are really trying. Pokemon Go does need to keep some data longer because it's used in-game: when and where you caught a Pokemon that you still have; whether you have ever visited a given Pokestop (but not when); how long you've had Pokemon in a given gym. But the game never needs to save actual paths you followed.
>That isn't the case at all. We have equations we use to predict observations, and in certain cases, those observations are not quite matching what we predicted. There are a lot of reasons why this can happen, and using the equations poorly is but one of them.

This is absolutely correct. What is its clear (and as evidenced by some of the replies to your comment) is that many so-called "scientists" are filled with hubris and lacking intellectual curiosity. They believe (more or less) that we know how "things work" even though our commonly accepted formulas and equations about how "things work" don't add up. In their minds, its just a matter of discovering a still-hidden particle or detecting "dark matter" or "dark energy" that must exist, because they are certain that their understanding of the universe is how things must be. Unfortunately, this is the opposite of how science works. Real science is based on verifiable measurements and observations that can be replicated and verified. Its fine and dandy to come up with formulas and hypotheses based on incomplete data sets, based on how you think things might be, as long as you understand that you could very well be wrong - no matter how well a given hypothesis may seem to work for a selected, discrete set of measurements.
I am sorry to hear of your loss - losing a cat is losing a member of your family.

It is difficult to explain to others how much an animal means to your life. I have been far more distraught about a pet dying than human relations passing away!

Please be gentle on yourself and let yourself grieve. And reflect on the wonderful life your cat was able to live in your company.
I understand the motivation for dark matter. My point is that as long we have a full density distribution to play with, we can explain almost anything with the model. And the start of this thread was me disagreeing with how much it actually proved that observations matched "really really well " with the model.

I don't see why the scenario "gravity works differently at large scales" couldn't explain the observations until we have some idea how gravity would work differently.

Don't forget that each of these observations rely on a quite large sets of assumptions about everything from how much luminosity from galaxies with a certain (normal) mass can vary to how we estimate distances to very far away objects. We don't have that many observations of e.g. gravitational lensing. And, if we realize we actually don't know how to calculate things correctly with GR, or our theory of GR is wrong, that will have implications for all of those assumptions.

The dark matter hypothesis might very well be right. It is a very reasonable guess. But so far I think the proofs for it have been overstated.
China is capitalistic monarchy and so far it doesn't look like they are solving poverty.
I think it's concerning that everybody seems to think it's okay for companies to clamp down on political discourse. Where do people think we're supposed to talk about this shit? Who's supposed to champion these causes if not companies? Who has actual power in this world other than companies? Companies dominate the media, the way we consume media and everything that we see.

All this means is nothing changes, nothing improves and companies are free to profit off of suppressing rights in authoritarian countries without blowback from people using their platform (like Blizzard/Riot) or people that work for them. Companies are not and never have been neutral entities. If your goal is profit maximization to the detriment of the social fabric and moral principles, then sure, go ahead and pretend to be neutral. But I'm not sure that should be the goal and we shouldn't be helping companies pursuing this goal.
Yes, and she says it quite clearly:

> Now, what we do when we want to explain what a galaxy does, or a galaxy cluster, or even the whole universe, is not to plug the matter and energy of every single planet and star into the equations. This would be computationally unfeasible. Instead, we use an average of matter and energy, and use that as the source for gravity.

> Needless to say, taking an average on one side of the equation requires that you also take an average on the other side. But since the gravitational part is non-linear, this will not give you the same equations that we use for the solar system: The average of a function of a variable is not the same as the function of the average of the variable. We know it’s not. But whenever we use general relativity on large scales, we assume that this is the case.

> So, we know that strictly speaking the equations we use are wrong. The big question is, then, just how wrong are they?

[emphasis added]

It's not a "hunch". It's just how the math works.

average of 0-9 = 4.5

4.5^2 = 20.25

average of squares of 0-9 = 28.5
Completely agree, we now profitable and own 100% of the company. Thanks, YC :)
Nonetheless the values of receiving and giving charity are more common in the community in question than your comment about conservative values, because conservative doesn't mean "trump supporter" or "same values as Republican party".

So aware or not your previous comment was wrong in every way because you cannot or will not separate different meanings of "conservative".

You smeared all with one brush and your subsequent worldview is just as nonsensical as one would expect from such a nonsensical approach to viewing others.

Your comment was the opposite of insight - anyone who read your comment was actively mislead. You are fake news.
Probably because Algolia isn't using yet any machine learning, but more old-school (yet still very good) tries-based search.

And it's probably why also Algolia shines as search engine for a website vs searching the internet like Google. The former has a small scope (looking for videogames on twich, polo on lacoste) while the latter must be personalized for the user (the snake python vs the programming language python).
It is not even the definition of free software. The FSF itself acknowledges that permissive licenses are still free software. (all free software licenses are open source and viceversa, the different nomenclature is only a matter of principles).
I agree with you that policing all the content on a large user-driven community site is untenable.

My point - and I didn't make this clearly - is about the relationship between the company (GitLab) and the customers it chooses to do business with (think: aggressive undemocratic countries and the companies within them that enable oppression).

If you live in one of those countries and find that you are being stepped on by tools enabled and built by a U.S. company, then you're going to question the ethics and intentions of that company.

Until now GitLab has fostered a very positive open source ecosystem, making their own core product available for modification under the MIT license. That's fine, and that seems a principled and ethical stand.

It's still possible that their code will be deployed and used for malign purposes; those are the cases where as a victim you'd contact your (local) law enforcement if there's anything clearly illegal.

What seems a lot more questionable here is who GitLab chooses to peer with to profit from, and to allow influence over the direction of the product and the code itself. That is the change which is signaled in this policy shift - it is that GitLab will do business with anyone, and that employees shouldn't discuss that - indeed they are being told to treat it as some kind of virtue.
Already, businesses in the UK that accept cash payments worth over €10,000 must register with HMRC as a "high-value dealer". In France, it is illegal to perform a cash transaction over €1,000 (yes, one thousand). And the same is true in Italy.

In the US, if the cops notice you have large amounts of cash in your car during a "routine traffic stop", they will take it from you on the basis that you must be a drug dealer.
In trains it's better to look towards the back of the train. So do it next to a window, but with your face towards the back of the train.

This at least according to one person I was on a train with. I had a reserved seat looking towards the back of the train. I (and most people) don't like those. The other person really wanted my seat because of motion sickness. So we were both really happy to switch seats :-D
> Because it is a paid-for app instead of a gratis one.

That's not correct. All Niantic games are free to play. In-app purchases are available, but in reasonably densely populated areas you can play just fine without them, there is enough "stuff" to collect in the wild.
To give another example:

If you have a laser pointer and flick your wrist fast enough, the spot on the ground that your cat chases can move faster than light without violating any laws of physics.

That's perhaps easier to see, if you think of a giant laserpointer aimed at the moon.

Similarly, a shadow on the wall can move faster than the speed of light.
DinkToPDF works well to render the HTML produced by Views into PDFs
This is the MACHO hypothesis, which seems to have fallen somewhat out of favor since we can measure this to some extent and we can't find anything close to the required mass [1]. Although it is likely there is unaccounted regular matter, I think it is considered unlikely that this will account for the 85% of "missing matter" that we need, not in its entirety and likely not for a significant part of that either. You will need a humongous amount of brown dwarfs to compete with the regular stars and known (supermassive) black holes that are already in the known 15%.

[1]: https://en.wikipedia.org/wiki/Massive_compact_halo_object

"A survey of gravitational lensing effects in the direction of the Small Magellanic Cloud and Large Magellanic Cloud did not detect the number and type of lensing events expected if brown dwarfs made up a significant fraction of dark matter."
The proper formulation of the light-speed restriction is that no information can travel between two points in space faster than light-speed.

The expansion of space itself doesn't violate that - you couldn't use it to communicate with someone in an FTL way.
Right -- that's why I said most RDBMS. To get ACID and CAP-consistent (which, as an aside, are not the same thing) cross-shard transactions requires some form of migrating your production system onto such a distributed-capable RDBMS that you describe (of which, Spanner arguably fits the description of).
Show HN: Eventil – A Meetup Alternative for Tech Events
The stability of transonic and supersonic cars
Hmm, but it looks like the universe is flat, doesn't it?

(Or is it flat like a torus, so doesn't need any curvature to go loop on itself?)
In a future where we get rid of private cars, we could have community taxis/buses that are trained to deal with these things.

Theres a woman near me with some kind of mental impairment that gets picked up and dropped off by a mini bus with a lift on the back, so the model obviously exists in some form.

Plus it doesn't rely on a support network that may not be there.
I can’t understand some of the YC invested companies. They don’t seem to be billion dollar companies to me. For example, why is a form builder a billion dollar company?
I don't think this makes even sense to account. Try to look at internets energy consumption as a whole and how much of it "makes" sense and provides real value - tranferring memes, DDoSes, ADs and so. Look at all animated websites - how needed is this "feature", what value it provides (usability? haha) and how much total energy it consumes in sum across all devices. I really "love" that Belgium uses city night lights on their highways - this is total nonsense. Compared to these, Bitcoin energy consumption makes complete sense.
It seems a little circular to say that your argument is based on what is legal, when the discussion is about what should be legal.

Anyways I think your point is mainly that there is a line between what is required of a business and what constitutes a right to self-determination / self-expression. Where to draw that line is certainly not obvious and we understand new things about it as society progresses. So in that sense I do understand your point of view, and I happen to agree that certain decisions regarding what work they take should be allowed by a business, but I hope the point has been made that you have to be careful what you wish for when stating absolutes like "for whatever reason they choose."
A form builder can evolve into an app builder.
I took one look and immediately checked the comments to see if someone else had already brought this up. I looked at the images then, but reading the text itself was too much effort for me.
I remember reading the article when it got first published in June 2019, this is the same article but with an update at the end. YC W20 batch just got all their letters.

Good luck, I hope you guys succeed and keep grinding!
Hey, thanks for applying. I appreciate that. Sent you a couple of messages on the platform :)
"combinatorial" was used predominantly in 1970s books for whatever reason.

In most of contemporary books and university courses "combinational" is used and with a note that you should not confuse it with "combinatorics" and "combinatory logic"
Definitely. OnionShare requires your own computer to be connected to the interwebs - the data is only accessible while your OnionShare app is running. With Arweave the hosting is taken care of (the data/website/etc is hosted on the Weave). Plus, OnionShare sites are not verifiable/ reliable as they are a website running on someone's computer. An Arweave site is timestamped and unforgeable; it's also resilient (replicated on many nodes) and permanently stored.
Hey, could you elaborate a little more? Where are you seeing this?
Xkcd: What is dark-matter and dark-energy?
What's Your Study Plan?
What do you want to study and how do you organize it ?
In radio astronomy, they build interferometers, with very large baselines, to give resolution equal to a dish the size of the baseline. AFAIAA, they can also synthesize a baseline by taking images 6 months apart, giving an effective baseline the width of Earth's orbit.

I don't know how an optical interferometer works, but I believe such things have been built.

I would have thought that an optical interforometer could be configured to just "not see" the passing satellites. I think that seems to be a mere technical problem for telescope builders, and not a fundamental problem that the rocket-men have to solve.
Others have mentioned the "expanding ballon" analogy. But personally I find this more intuitive:

Imagine you are baking sweet rolls with raisins in them. When you are proofing your dough, the yeast makes the dough expand in each point, so all the raisins become further apart.

Now imagine starting with an infinite dough. As it is proofing, it will still be infinite, but there will be a measurable increase in the distance between raisins, and the speed of how quickly a specific raisin moves away from another one increases linearly with how far they are apart when you start measuring.

That's all "expansion of space" really is. We can see other stars moving away from our own, and the stars far away are moving away faster than those close to us. And since looking outwards is looking backwards in time, we can only see as far away as corresponds to the first stars that were formed.

And maybe you've heard that we can observe "expansion is slowing down". That is actually the fact that we measure a deviation from linearity in speed vs. distance.
I don't see how this schema enforces double-entry accounting. You can specify an entry with a debit, and another with a credit, but they are not linked, their amounts are not necessarily equal and you're not required to simultaneously submit both entries. So this is really a single-entry accounting system that they happen to use to do double-entry accounting. Or am I missing anything?

For those of you reading this who wish to implement a simple system for double-entry accounting, do it like this instead: specify `debit` and `credit` columns with a foreign key to a particular account (what Square calls a "book"), and a field for the `amount`. When, later, you want to calculate the balance of an account, take the sum of all transaction `amount` where `debit = <account>` and subtract the sum of all transaction `amount` where `credit = <account>`.
Makes sense, driverless cars can still be driven manually right now. So it needs a read mirror.
I've tried to contribute to new languages, but they all have "join us" button that subscribes to a generic Mozilla mailing list, and the Voice team never sent any instructions how to contribute! No wonder these are stuck unfinished for years.
Blizzard Gives 6-Month Ban to College Team That Held Up 'Free Hong Kong' Sign
layers are only ever added, never removed
The update was because we just found our today we did not make the cut for W20
This sounds like something a developing country would do. How about not clearing trees next to our power lines and just shut down instead, because it's easier?

I have never heard of a power company in any developed country handling the problem like this.
I didn't describe a neutral Google internally: looking back, it's possible there were a bunch of closet Marxists who felt uncomfortable admitting that. I doubt it because in other offices I've never seen people on the left hold back from publicly announcing their views (it's called virtue signalling for a reason!), but I guess it's possible.

The companies policies were neutral though. There was no concept that helping people find information might hurt them, as you see in modern day Google.

During the time period I'm talking about Google got banned from China because they refused to continue censoring the search engine. That was circa 2010, I think. So consistent with a company having a very free speech, libertarian view. It made waves because so few companies were willing to sacrifice the Chinese market on the altar of free speech, but Google was. Building a new censored search engine only seems to have started after Pichai took over and Brin/Page checked out.

As for "started surreptitiously tracking everyone", that was a media attack that started around the time Google News took off. Nothing had actually changed about privacy policies of tech firms, and users were clearly very happy with the ads-for-services arrangement given the rapidly rising usage numbers. But the news industry was shrinking, and editors/owners in particular felt hugely threatened by Google News, which effectively replaced them with an algorithm and commoditised news almost overnight. The media went from being very positive about Google (great company to work for) to trying everything they could to attack and destroy it. What they wanted was money, pure and simple, and eventually as the attacks stepped up they stopped pretending otherwise. Hence the new EU Copyright directive and "link taxes" that started popping up.

The employee backlash phenomenon only seems to have started recently. There were always pointed questions at TGIF when I was there, but disagreement with management was largely congenial. Things started going downhill around the time Colin McMillen created Memegen. It was basically an internal Twitter but worse, I don't think you can ever fit 140 characters into an image macro. That introduced and encouraged Tweet-sized thinking/viral liking campaigns whereas previously disagreement had been surfaced in email debates (the famous "centi-threads") or through face-to-face discussion. Long email discussions did annoy some people, but they at least had an expectation you'd contribute by writing something useful. After Memegen got big I started seeing people unironically cite that they got highly voted memes as evidence of creating value in their internal CV and promotion packets, which was ridiculous.
> Exactly this. I don't see the point of, say, the AGPL because it can't possibly be enforced: Short of a whistleblower or other leak, have no way of knowing if I'm connecting to AGPL software, or merely something that's API-compatible.

but that's not specific of open source software. You could be running any closed source software without a license and nobody would know.
If your business is that good, you'll be able to find $150k in seed funding elsewhere.
Ask HN: Fastest, Direct Application for AI
Lets say I have figured out a different way of doing AI that is very accurate.

Which application should I apply this to, to get the fastest adoption?
I don't mind things being created in the $HOME directory but the inconsistent casing as different applications create folders can be annoying
Besides it being completely different in other ways, the market cap is not value. You couldn't realize a tiny fraction of that without tanking the market cap.
Publishers don't exercise editorial control? Come on now.
Because who wouldn't want their home directory to be managed by the init system? It's $CURRENT_YEAR after all!!
3 years ago. Wow.
Its not about the money...
> Stop the error!

I know this is rhetorical, but I've been bitten by this enough times so for those who don't know `no` will translate to a boolean false.
Sorry I mismanaged my tabs, the second citation is just above the conclusion in the referenced paper (https://dl.acm.org/citation.cfm?id=2984565 ) "Interacting with Soli: Exploring Fine-Grained Dynamic Gesture Recognition in the Radio-Frequency Spectrum"

> Suggesting one can go 10x as far (10000x power alone) and through walls is... creative.

I was going for conservative. Typically thinking about open-space work environment.
The device doesn't need line of sight like a camera would, it can be in your coworker pocket and listening to you.

They are well founded and doing their own radio chips, I give them the credit they deserve and assume they can replicate a somewhat similar technology (6Ghz radar).

It is better to use a logarithmic scale. The 10000x power (40dB gain) doesn't mean you will need to emit 10000x more power, in practice you will amplify the signal, by focusing the beam via antenna design, and amplifying which theoretically you can do relatively easily as long as you are above the Cosmic Microwave Background Radiation noise. Then you need to do some trickery to trade bandwidth for signal strength (which they do : FMCW). Then you still can integrate over time. A radar typically scan its whole surrounding, but if instead you chose to focus it at one place you can gather for longer.
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Why is an app builder a billion dollar company?
This could spice up the next Tame Impala[1] or St. Vincent[2] tours.

Mentioning them because both Kevin Parker and Annie Clark tend to be interesting in their guitar engineering, while creating popular, accessible and increasingly synth-driven pop/rock.

1 - https://youtu.be/E2mNdT43M8o?t=366

2 - https://youtu.be/3I89orRWN7I?t=153