skysight-inc/HackerNews huggingface dataset:
> Aikido is that fantasy martial arts. The kind that only works when the opponents are in on the ruse.

Agree to a good extent. But less so after going to a few sessions and sparring with the sensei. Had to throw myself around in all kinds of spectactular ways to avoid the pain as he put pressure on my joints. For a spectator, it may have looked like he was throwing me around and I was playing along and exaggerating.
I will post some hints soon...
> Something not being used in MMA doesn't necessarily mean it's completely useless, it just means it doesn't fit MMA. The sport isn't static, instead it changes as new ideas and techniques come and go.

We agree about that. The thing is, if Aikido could deliver what it promises, namely that you are able to effortlessly throw people to the ground when they try to strike you, then you could be sure fighters would use those techniques.
It's because most of the randomness used by software is actually pseudorandom. What that means is that you actually use a defined sequence. The sequence has behaviour that's close enough to what you'd get if you were picking random samples from a distribution for the desired application.

The key difference is that it's reproducible and that if you have insight into the parameters of the sequence (e.g. the seed and the current position in the sequence), you can predict the results. That's why people often get upset when people use these pseudorandom number generators for security purposes.

The seed is a value that is used to generate the sequence. If you use the same seed, you get the same sequence.
There is a strong connection with rainbow tables. A common misconception is that rainbow tables are a complete set of hash values. What they actually are a method of saving storage space at the cost of making searches slower.

The idea is to make a function that maps hash values back to password-like strings. With that function chains like this are built:

I=initial password guess
P=new password-like string
V=hash value
H()=hash function
U()=unhash function (converts V to a new P)

I -> V0=H(I0) -> P0=U(V0) -> V1=H(P0) -> P1=U(V1) -> ... -> Vfinal

Make many chains with different initial guesses, and store the first and last values [I, Vfinal] in a database. When you find a password hash, you repeat the H(U(H(U(...)))) process until you it matches one of your saved Vfinal values. This tells us the hash value path from the password hash we're trying to break and hash from the known initial guess merged, just like in this card trick.

Re-creating the chain from the chain of hashes from our known initial value, we discover a string that might not be the actual password, but is a string that hashes to the same value. With modern cryptographic hashes, collisions are unlikely, but rainbow tables were invented when passwords used very poor hashes.
Facebook’s downfalls are numerous:

- ads

- promotion of gossip to a global audience

- peer-pressured risk-taking

- pics, videos and other content that’s usually boring

A real friends platform:

- video / text chat

- arranging spontaneous and planned activities

- gather/raise funds for group activities

- where people are at

- what people are up to

- finding new friends from friends of friends for activities

- find new interests, get recommendations

- visualize social circles

- paid for by users

- never sells data
Well, not mass transit, no. I thought you referred to tunnels for private cars, à la Musk's ambitions.
Deploying a global API Gateway infrastructure in just 5 clicks with AWS
It is sad that in is 2018, we know full well that there are serious privacy implications, and yet we have no good choices for really protecting ourselves and our interests because corporations want it that way.
Verify the signature, check the time, use the hash as if it were the password to re-hash and compare with DB?
Personally, I have found that you best make mental connections over digital media, while you best make physical connections in person. So services need to be tailored towards those mental connections. I have found Quora and other discussion platforms to be unbelievably good for finding people that I really wish lived in Atlanta.

But a discussion platform almost certainly cannot also be a dating service. I wish someone would give me a few hundred thousand to explore why.
I took a week of Aikido lessons before I had to stop — my wrists and knees just couldn’t handle it.
In wildfire-prone states, the wealthy pay to have private firefighters
>You only need two channels to provide complete spatial information through headphones if it's a binaural recording.

That only works for headphones though...
Has anyone looked into these for an Omni directional treadmill?
From the very start I have to object strongly to his definition of Art as being "what we don't understand", and science being "what we do".

An "Artifice" is a subject of human creativity. Science is such an artifice. The actual effective practice of science is "an art" and one that many people simply don't get.

Science is the art of developing a better understanding of that which we don't know by applying that which we do ...
Never gonna happen. The holy grail for advertisers is show you an ad on your phone, on your computer, on your car and in-person on signs and billboards enough that you’ll buy whatever it is to shut them up.
I'm always fascinated how the mention of aikido brings out the venom of the "real" martial artists.

Always it is the same tired arguments of how "it'll never work in a fight", "mma yada yada".

I can only assume these people are somehow threatened by super mean aikidoka, or they're worried that there will be a mass slaughtering of aikidoka when they go defending justice in the night.
One of the ideas behind Aikido is to not get in a fight in the first place. In real-life scenarios, it is often very possible to de-escalate a situation and prevent it from deteriorating into violence. Over time, practicing Aikido lets you see these opportunities and solve conflicts without resorting to violence.
We can agree to disagree, I just don't think PC beeper can in any realistic circumstances sound as good as this:

https://www.youtube.com/watch?v=U7PF5DSpjgM
That's an interesting follow up question. What is the minimum number of boxes the hacker/spy/secret agent needs to see to guarantee success?
I thought I was kind of "unlucky" to have a guy swing at me in the first place ... lucky that I'd had some kind of preparation at all!

I'm a wuss I should never have been doing security ever ...
I think LoSboccacc is saying is that the way they (by which I assume is meant Italians, as per the link) deal with it doesn't have ethical problems.
Lobsters sysop here - we're having trouble keeping up with YC News's level of traffic. We're not going to crash, but the unicorn worker pool is small enough that lots of users are getting 500s. I'm adding some caching.
Parent mentioned a binaural recording.

Those needs specialized equipment to be recorded -- and can indeed reproduce the 3d spatiality of the sound (sic).

In fact there are 3d sound processors that can do very impressive things even without headphones (e.g. some from Roland).
I remember seeing my first article about biology as a computing substrate when I was a kid and thinking OH MY GOD...and then nothing happened for 100 years. (I am very old.)
Alibaba’s Profit Slips as It Spends to Expand Its Empire
Uh, there is something wrong with your logic. You are right that all this data ends up in the hands of "intelligence agencies" but you can't just sit back and say "ah, the Stasi aren't so bad" while they're kicking in doors and terrorizing people. Which, granted, hasn't happened on a large scale in the US--yet. But here's the thing: Parallel construction is real and so my suspicion is that this data is being used--A LOT--and it flies under the radar because nobody cares about drug dealers and gang members. Sooner or later it gets used on all of us, though. It's only a matter of time.

Look at China with that whole life score thing they are doing. It's cringeworthy--a total abuse of technology to compress individualism and destroy any will to fight Communist oppression.

It is inhumane how the state crushes us. We must resist, the same as if machines took over and Skynet tried to kill us all.
> Aikido is that fantasy martial arts. The kind that only works when the opponents are in on the ruse.

Similarly Lisp only works when used with a cooperative compiler. And jazz is most effective when played with fellow jazz musicians, and/or for an audience that appreciates jazz.

Your claim, if true, would only strengthen the analogy.

> Blockchain is like the Aikido of technology.

This is the owl of analogies.
The articles you cite start with experimental data about Gene regulatory networks (eg from dna microarray) and then use rnn to characterize or produce the networks known or elucidated experimentally.

None of the sources claim functional equivalence of the GRN by the RNN or vice versa.

From a "big O" computational complexity perspective the gap between what you are describing and the actual case is the gap between P and NP. Just because we can confirm the results of a GRN with an RNN doesn't mean we can produce those results.

Yes, biological computing could harness very powerful parallelism. We are nowhere close to harnessing that power. (See toy manufacturing analogy)
Self defence techniques such as Krav Maga teach you the exact same, while also teaching you how to actually defend yourself in a variety of scenarios.
Petition calls on Apple to recall failing butterfly MacBook Pro keyboards
I don't know why you are downvoted. This is an excerpt of the abstract:

> By introspecting my personal aesthetic sensitivities, I eventually realized that my tastes in the scientific, artistic, and physical domains are all motivated by the same driving forces, hence unifying Lisp, Jazz, and Aikido as three expressions of a single essence, not so different after all. Lisp, Jazz, and Aikido are governed by a limited set of rules which remain simple and unobtrusive. Conforming to them is a pleasure. Because Lisp, Jazz, and Aikido are inherently introspective disciplines, they also invite you to transgress the rules in order to find your own. Breaking the rules is fun. Finally, if Lisp, Jazz, and Aikido unify so many paradigms, styles, or techniques, it is not by mere accumulation but because they live at the meta-level and let you reinvent them. Working at the meta-level is an enlightening experience

I am hesitant to criticize the author, because I find the text so absurd that I must clearly be missing something. It looks like satire written for /r/iamverysmart.

I'd honestly appreciate being given more context from fellow HNers which upvoted this story and found it interesting.
Build Native Mobile Apps with Flutter (iOS/Android) by Google
Altair enables you to do very quick data visualizations of your data - this is crucial when doing Exploratory Data Analysis. There is minimal code to write to get sophisticated plots. That to me is its strength.

Bokeh's strength (for me) is when I need to heavily customize a visual to an extreme. I know of some who use it for streaming data - etc which cannot be done in altair.

Additionally you would only want to use Altair on medium sized data. But Bokeh in combination with Holoviews and Datashader can render incredible amounts of data (see pyviz.org)
Thing is, given a number of actual fighting contexts, jiujitsu is super effective. Not so much with aikido, it's like the air guitar of the martial arts world. The gun argument is meaningless. Anything of any use and effectiveness can always be imagined in a context where it wouldn't be useful.
I'd expect it's a submarine, which are mentioned in the page you link, https://en.m.wikipedia.org/wiki/Submarine_patent -- largely only a thing in the USA's former first to invent system AFAIK.
Try listening to aphex twin, maybe selected ambient works 2 or analog bubblebath 5
Also, since E Coli comes from animal waste, if people ate more vegetables and less animals, we'd see less E Coli.
Most random sources are PRNG rather than 'true' random sources, and sometimes it's useful (for debugging, for analysis or just for interest) to be able to use a predictable pattern of otherwise random numbers.

One way is to allow some way of 'seeding' the PRNG such that the order of the numbers it produces is the same each time, as we return the random function back to a known state.

Or, by example, if I make 5 calls to the PRNG with seed value '0' and see the following: [5, 2, 9, 18, 4, ...] and that causes the agent I'm testing to do something utterly weird, so I want to re-run my agent to observe the effect in detail to debug it, and for that to happen, I need the same [5, 2, 9, 18, 4, ...] sequence, otherwise I'll be forced to run repeatedly until I observe the same glitch, so by re-seeding the PRNG to '0', it will then predictably return that sequence, rather than a new, random sequence.
Studied Aikido for many years.

Can confirm it is "that fantasy martial art".

Your partner has to be in on it because otherwise you'd never have the opportunity to apply the technique; no one's going to let you e.g. just grab a wristlock off of their punch.

This is all down to how it is trained, training with no resistance leads to fantasy land bullshit.

Watch black belt level Aikido randori. Contrast with judo, wrestling, bjj sparring. The difference is obvious, one group is dancing in response to choreographed zombie attacks, the other is learning how to really apply techniques against resisting opponents.
How are you running your email? Is it you primary email?
This reminds of two photogrpahs shown in the book "Ham Radio's Technical Culture" [1]. The photos show two ham shacks separated by 50 years and how they basically look the same.

[1] https://mitpress.mit.edu/books/ham-radios-technical-culture
They have to work on some mechanism to make it stop, like a strict provenance control policy before the objects are listed for sale.

This is the obvious response to these kinds of situations, but is it actually a good solution? What if the visibility provided by having them on eBay is more helpful in tracking these items down, compared to having these deal happen on more "underground" markets?
Any company that grows this big will behave the same. The only solution for consumers is to not create companies this big. Always also buy from competitors.
This was something I enjoyed about practising Aikido. As a 15 stone man you don't get an opportunity to be thrown around like a rag doll very often. Sensei I suspect picked on me for just that very reason :)
Google's approach to open source does feel very much like virtue signaling rather than constructive adherence to the ideology. The build system for any Google project is notoriously terrible. I recently attempted to build Skia; even after rereading the scant instructions, I could not get it to do anything better than a compilation error.
You prevent a lot of these problems by hashing passwords as soon as possible (i.e., on the client).
The language around free speech in civil-libertarian circles is flawed
Intralox belts are sold under all sorts of names...mecnasort and tabletronix were a few older ones I recall when I first started as an industrial machinist 15 years ago. The problem with intralox is theyre relatively sensative to weight and if one row or cluster of links goes down, it can very quickly take the entire table down.

Mecanums on the other hand are incredible. If you need to service a four thousand pound part, you can drag it around on a table of mecanums like its a childs toy. Mecanums pods are even individually addressable, so you can get an email or alert to exactly which one is under too much load, or failing.
The Instability of Stablecoins
Both the Android and Apple app stores have become so riddled with race to the bottom crap that I trust them much, much less than the wild west of old when there were no stores at all, and you just grabbed exes from random websites or BBSes.
You have to redesign the whole car to make room for underfloor batteries. EVs based on existing platforms have to work within the platform's constraints.

The Chevy Bolt is a clean-sheet design and is also a "skateboard".
Who pays for the real friends platform?
Agh, that's scary. What is she expecting them to do about it?

Is she asking them to fire people for being sexually unattractive?
I invite you to show me evidence of any marches on Washington where people demanded a new electoral system.
I wish more people would use (or expose) 0AD engine (an open source Age of Empires-like game) in AI research, even though I know Starcraft2 is where most of the focus is these days).

https://github.com/0ad/0ad/tree/master/binaries/data/mods/pu...

https://github.com/agentx-cgn/Hannibal

Nearly everything bullet pointed in that list is there.

Edit: Should also mention there is the Halite AI challenge, https://halite.io
More precisely, "women haters are not getting laid and start killing people over it".
Smarter every day had video recently about it used in VR company
I studied Krav Maga and it taught me nothing like that ... I had to quit it because it was having a detrimental effect on how I was approaching real life conflict ...
Doesn't matter which drain you go down, they all go to the sewer!

Surely once Google sell your data, or access to it, then you're in no better position than of above else were selling it? Google release it into the wild, presumably, just like other companies do.
Nice cherry picked data. That's a HUD report. Try checking the NYC Rent Guidelines Report for accurate data:

Manhattan 2.57 and Queens 2.11 [1]

That's from page 2. It also shows a -25% and -35% change for vacancy rates from 3 years prior for those two boroughs.

And you can't seem to produce any citation for your assertion about a piece of the tax code that allows landlords to make more money from empty apartments than renting them at market rate.

[1] https://www1.nyc.gov/assets/rentguidelinesboard/pdf/hsr00.pd...
It seemed to me a bit dismissive of user concerns they clearly anticipated. I've always enjoyed ShiftyJelly's release notes in the past though, so maybe they're just being their usual selves. Either way, only time will tell.
How much is the traffic? Yc traffic is not really that high
It seems there is some complexity and other patents involved.

From their SB2 form:

A form of our Omni-Directional technology was originally patented in 1973 and was sold to the US Navy. We secured a transfer of this technology from the Navy in 1996 under the terms of a CRADA agreement (Cooperative Research and Development Agreement) and we have worked since that time to commercialize Omni-Directional products. We received 3 patents regarding the "redesign" of the wheel. In addition, we have a license agreements for the algorithms used to control vehicular movement, and a patent for this technology has been applied for. (...) The patent for the Omni-Directional wheel expired in 1990.

https://www.sec.gov/Archives/edgar/data/1081372/000101376207...
You're not wrong that GEB is grandiose and presumptuous in the material it takes on. But one important difference may be that LJA has started from one person's very particular choices* and tried to tie them up and cast them as universal. That often doesn't come off well: I think it tends to be more about the author than the reader. (Caveat: I say this only having skimmed the paper here, not read the whole thing. And having loved GEB.)

GEB, on the other hand, mostly started from a bunch of universal ideas, and used the author's idiosyncrasies as a way to explore those ideas. I think it comes much closer to hitting its mark.

There's no accounting for taste, though. If you don't like Hofstadter's way of thinking, you probably just won't enjoy his book. I'm sure some people find the Dialogues and their wide-eyed "discoveries" of analogies with the essays' material to be smarmy at best. Personally, I find the language of this paper to be overly flowery and too cooler-than-thou (yes, I've heard of Erik Satie; does it matter?) to enjoy.

----

* I mean, "By introspecting my personal aesthetic sensitivities, I eventually realized that my tastes in the scientific, artistic, and physical domains are all motivated by the same driving forces"...that basically says "I think you're going to love reading my diary".
Is there any project or discipline aiming to model our biology in software so that we can simulate things on a computer?
(Edit) I found this https://en.m.wikipedia.org/wiki/Modelling_biological_systems
I guess that is it
I had a feeling someone was gonna post this argument: that Aikido is in actually too effective to be used in MMA. It's in fact so good defensively that there is no point in even using it :^)
There are tons of articles and books on design. In the same way you build your toolbox with programming with algorithms, concepts design patterns, best practices, you need to build one for design. Ergonomics, color theory, typography, ergonomics, Fitt's law etc etc. Then work on applying them until you develop and intuition for what's the best solution to a problem.

With design, maybe more so than with code, it's a lot about developing good taste. Code can be empirically worse or better but design is a lot of having a point of view and working within self imposed constraints.

One book I'd really recommend is "The inmates are running the asylum" by Alan Cooper. It's more about shifting how to think about design rather specifics, but it's one of those books that puts a voice in your head that will help guide a lot of decisions.
I continue to think it's silly when people assume Trump just tweets his thoughts directly with no regard for results. That might have happened in the past during his campaign, but multiple people have handled that account. I can see no way that the people working high-level jobs in the White House would ever continue to do that work without some idea of and input into his thought processes. It's too important, and the people there are too credentialed. I'm inclined to believe that when he writes a tweet that people can't seem to interpret, it's because it's aimed at achieving a specific result with specific people.
All economic policy is redistributive. The only variables are how and to whom.
Rather not, I'm still glad it's not very well known in SV or mentioned on HN. Sorry.

I tried scaleway, and I'm glad I didn't try to move my personal SMTP server there.

The other issue was that I can't run my own kernel there, which was also non-obvious before purchasing. They make it look like it's baremetal, but it's limited in this way.

Now I'm on a fully virtualized vmware VM where I can do pretty much anything, including running a kernel with WireGuard included. And it's half the price of 1-XS for the same specs and no blocked ports and no uploading of my ID somewhere I don't trust.
Salient item from the article - theres tons of opportunity out there so the quant funds get involved:

In 2016, Susquehanna International Group LLP, an American quantitative trading company, started an Ireland-based operation called Nellie Analytics Inc., targeting basketball, American football, soccer, and tennis. Phoenix, a proprietary sports-betting company with headquarters in Malta and data-mining operations in the Philippines, won a £9 million ($13 million) investment in 2010 from a unit of RIT Capital Partners Plc, the £3 billion trust chaired by Lord Jacob Rothschild of the global banking dynasty. (RIT sold its stake in 2016 to a private buyer, quadrupling its money.) What isn’t widely known is that Phoenix was founded by former employees of Woods, including his protégé Paul Longmuir.
> Facebook's users - becoming sentient and aware

> a bland repository of pablum

I believe you are overestimating the intelligence and "woke-ness" of the Facebook user community, and of humanity in general.
New companies that will threaten established ones without being bought out by them?
it's like the air guitar

I think dulcimer would be a more appropriate analogy.