skysight-inc/HackerNews huggingface dataset:
The subtitle reads: "I spend 80 hours a week trawling junk shops with a laser scanner. I don't feel good about it."

I had the bright idea a few years back to give this a try. I went to a couple of library sales, scanning books and eyeballing others. I came away with a few books that I could have made a 5-10 dollar profit on. But I came away with something more valuable than that.

I looked at the other people at the sale doing the same thing I was, because there were several of them. Call me prejudiced, but here was my take. They seemed like older, retired guys who were probably earning a pension or collecting social security, and basically out and about doing this "job" just so that they could have an ostensible reason to escape the "Eye of Sauron" (read: wife).

None of them looked like they were making a living. They looked like they just wanted out of the house.
Yes, but it wouldn't save any space. As a thought experiment, think of it this way:

How would we enumerate all these several gazillion image possibilities?

Well. Let's say number one is all black. Every pixels and every channel is all zero in its value. And let's say the last image to be enumerated is all white. 255 for each pixel and each channel.

Every conceivable image is created in between these two ends. For example, image two is all black, but the last pixel has a value of 1 instead of 0 for its value channel.

Image 1840274917 has pixel 27581 slightly reddish.

Hey, wait a minute, you've just created an image format for describing the data within the image! The only space you're saving is that (given this format) you save space on darker images, because they're likely lower in the sequence.

But that's only because this specification demands that each image be the same exact size and can make assumptions based on that. A lossless format like PNG would be able to perform much better over a wider range of images. (Eg all white will be huge in our system, but cheap in PNG)
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The existence of a bijection between two sets is what "same size" means in set theory. Yes, there are non-prime integers, but you can establish a bijection between the two, so their cardinalities are equal (both have a cardinality of aleph zero).

The reals, on the other hand, cannot be placed in a bijection with the natural numbers, and there are therefore "more" reals than naturals (i.e. there is an injection from the naturals to the reals, but not from the reals to the naturals -- any function from reals to naturals must have some pair x ≠ y with f(x) = f(y)).
in mathematics, we lose concept of how many and fall back to cardinality, which has a lose correlation with how many. So asking "are there the same number" of integers as rational numbers gets a little iffy until we make some definitions. We just say that we can create a bijection from integers to rationals. They each index the other, and for each thing in one, there is one and only one thing in the other. Does this mean there are the same "many"? Well loosely, and in the context of cardinality, yes. But things get weird because there are the same "many" of the whole as a subset (ie, there are as "many" even numbers as integers, as "many" positive numbers as positive and negative integers, etc).

But most people would disagree with you when you say "how can there be more rational numbers than integers..." because while we don't have a firm grasp of how many, we definitely would say that having the same cardinality means that there isn't some notion of "more".

I'm not sure what you mean by mathematical operations or concepts that depend on this.
4 reasons come to mind:

1. Advanced societies have probably solved the aging problem, leading to either extremely long lives or effective immortality. As long as these societies keep reproducing (and they will, unless they deliberately engineer out the urge to procreate, which I consider to be unlikely), they'll need space to spread out. Sure, they could probably pack themselves like sardines into a single solar system, but that only works if they'll be spending 100% of their time in virtual reality, and that would be begging the question.

2. A need for resources. Type III societies can capture 100% of the output of a star, but even this amount of energy might not suffice once society grows large enough. And even at that level it's still probably easier to manipulate matter than it is to convert energy into matter, so it'll be more efficient to harvest planets and asteroids and whatnot for raw building materials, which means leaving the solar system.

3. Even assuming they manage to create virtual reality that is 100% indistinguishable from reality, it's likely that there will still be a lot of beings that will reject the idea of living 100% in virtual reality simply because it's virtual. Even if it's indistinguishable from reality, they'll still know it's not real. So they may visit VR, but will want to actually live in the real world. Or in other words, humans have shown a tendency towards the perverse, and it's not unreasonable to assume aliens will too.

4. Any kind of scientific research still being done at that level will likely require the use of reality instead of VR. VR is a simulation, and even if it's indistinguishable from reality to your senses, it's still presumably not actually simulating reality down to the planck level (because it's part of the universe, it cannot simulate the entire universe at the same fidelity that the universe itself operates at, as that would presumably require more information than the universe contains), and so there's probably a fair amount of research at that level that simply can't work in simulation and requires testing against actual reality.
https://news.ycombinator.com/item?id=11590421
I think he just said he wasn't trolling.
Atari wasn't even a 'good' company. The original Atari basically invented arcade games and the home console (2600 or VCS) but everything they did afterwards was a complete disaster. Including causing the video game crash, some home computers that never really competed, a bunch more flopped consoles, not to mention they drove incredible talent away that went on to create companies like Activision, and in the process only really created about 10 notable games.
Prince was a true genius. "Mental health" is a term used to describe those of us who are not geniuses. I've known a few (very few) true geniuses in my life, and they're all so far outside the mental mainstream that I don't see how we could judge their mental health.
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Interesting, because Searle is the a famous advocate for an argument essentially equivalent to the Bad Argument:

https://en.wikipedia.org/wiki/Chinese_room
Serious question: how this can be legal?

If I have to explain myself to IRS why I bought 1TB drive instead of 500GB because in their opinion I did not have enough to backup, hence supposedly I attempted to defraud IRS on extra $6.00 of tax, why can they get away with hundreds of millions or even few billions?
I don't understand how YC could not invest in Pinboard, given the opportunity.
Idaho. Specifically any drone footage with a human who has not signed a waiver. It's a real piece of work and I've partnered with a production firm here in town and hope to have a real funny video challenge to the law sometime this summer.

https://www.aclu.org/blog/first-state-laws-drones
Maybe they emit neutrinos!
Most large software companies here will do LMIA for you. How long do you have left on your work permit? If you have at least 2-3 months and would like to work on a cloud-based analytics product, shoot me an email. If you get hired, and apply for a work permit, you can still be here on implied status until you get it (i.e. kosher to stay, cannot easily come back if you leave though).
yea, but he is right that logic and reason are quickly thrown out the window by many people when the suggestion of either terrorism or child porn are brought up. I've experienced that in person while serving on a jury.
This book is available as a PDF from the author's website:
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Often the answer to these kind of things is mundane, and comes down to "large companies are large"
For personal reasons, I was pretty interested by one of the digressions: the origins of the phrase “mathematics… is a young man’s game”, and a discussion of whether it is still (or ever was) true (focusing on the age question, not the gender bias, of course).
This is not at all the case. Deep learning can do some great things, but its not magic.
In theory you're right, but in theory nobody would attempt to crash at all. We have our car sharing services as well and just recently had a fatal accident where one customer was doing everything right according to road safety rules. But the truck driver didn't.
Same first thought... it also pretty scared me, especially given the sensitivity of the subject
Yeah, that's genius, not crazy.
The reliance on economic growth as debt relieval is what brought us overexploitation of natural resources, and also serves as a major impediment in responding to the threats of climate change. I'm not sure the world can survive another 50 years of economic growth.
I will have to say Rust has got me the most excited. But Kotlin and Elixir are also interesting in their design approaches.
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My speculation has for a long time been what I call the uniform cooling hypothesis. There are no type III civilizations because such things haven't happened yet.

If the universe is all the same age and if the emergence and evolution of life is tied to the overall thermodynamic evolution of the universe, then everything might be approximately of the same scale and complexity within a certain standard deviation.

If this is true then when we go out there we will meet all the others who have also just developed to that level.
Never underestimate the logical contortions people can make when they want free entertainment.
This is similar to how ResearchKit also has its own GitHub organization: https://github.com/ResearchKit
While working on a commercial project, you typically have to write some code that isn't related directly to the core business. This code can be open sourced as a library.
After a formal shareholder vote, where as if by magic, at least 60% of the votes will be in favour of the change.
I've worked with some people from IBM, doing some cancer analyses with Watson. I think the goal was to compare US/EU results(cancer get different treatments in different regions I guess). We "fed" Watson with actual patient data / diagnostics(getting/selection data was my job) and reviewed the resulting suggested treatment plans. Watson would suggest different plans, with results stats, links to pubmed, datasets etc. I'm no medic, but it looked nice. I wouldn't mind a "second opinion" like that.
>If it turned out that the knowledge that your experience of reality is symbolic gave you the power to shape quantum fields directly, that would be an interesting thing.

Ah, but it does: it gives you the ability to create new words for new things, and thus extend your reach and control out into the universe. We couldn't get to the moon until we'd figured out the right words to get us there. Then, we used those words to get us there.

The moon is still there. We got there because we described the effort to do so sufficiently well enough that the actions manifested into the universe, and we altered it according to our will - which is the real force of reality in the universe, since we can use will to both experience the natural world, and alter it irrevocably from what it would have been, had we all just left it alone - or at least not describe what we were going to do, so well, that it then just happens ..
As a practical matter, voting rights are, by and large, pretty worthless. Even famous activist investors with very deep pockets (Carl Icahn, for instance) are usually limited to causing just enough trouble to get management to make some "go away" changes. Plus, management works hard to put in place measures to entrench themselves: anti-takeover defenses, requiring super-majorities for certain changes (often mergers and buyouts), etc. A lot of these moves were undertaken by management of companies in the 1980s in response to a wave of so-called "hostile takeovers" in the 70s and 80s.

An interesting example is Alphabet/Google. Their class C shares (which have no votes) are trading at $691 right now. Class A shares (which have one vote) are trading at $705, which is 2% higher. That seems like a small difference, considering you're giving up any kind of voting rights. What if management starts to perform poorly?

Well, guess what? Insiders (and only insiders) have class B, which have 10 votes each, so you're not going to have much luck as an activist shareholder mounting a fight against that.
> Also, I imagine CNY -> USD conversion is probably done on an exchange instead of through a company like BitPay, so the comparison might not be very accurate.

There is no such thing as a Forex exchange, it is done through banks who hedge their exposure to other market participants over-the-counter and take a cut just the same.

There is absolutely no reason (in the long term) that Bitcoin would cost more to exchange for merchants than any foreign fiat currency does today.

And even today, a ~1% Bitcoin processing fee is approximately 1/3 to 1/2 of what credit cards cost to process.
This page absolutely wrecks Firefox 45.0.2. UI thread gets blocked indefinitely and spins a core. :-(
Well, it may be that using bitcoin right now is... not easy.

"Bitcoin! I've always wanted to try it. [Click.] 'Wallet address', what's that? Okay, I'll just Google Bitcoin. 'Buy viagra and pot online,' oh uhm... Okay, creating a wallet.. Wow, this isn't easy. Okay, now... Time to convert some cash to bitcoins! What the hell?!? Why does it need all of this info? 'For tax purposes bitcoins are not currency,' what the hell?!? Okay, um... What the hell is 'Magic the Gathering'? 'Fraud.' 'Japan.' 'Apologizes.' Hmmm... Ah, forget it."
You don't necessarily need it, Qualcomm have already demonstrated (live) image classification on tablets and it runs on a Snapdragon CPU:

https://www.youtube.com/watch?v=jkDSACXkErY
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not only could you enumerate all images, you can also enumerate all books. the library of babel does this and youre looking at the particular page where this exact paragraph is written, for hacker news by dackerman, no less.

https://libraryofbabel.info/bookmark.cgi?ci.pnvgmzgyrce29
That would be bad for the web. DRM and the web are incompatible concepts.
That seems to be the case with our excellent public library in Los Alamos. I got one of my favorite Maths textbooks there for about 3€ (was five bucks).
Yes, but having slight density, where single family houses are 10 feet apart does not create the environment your talking about. For that, you need 5+ story buildings and you need to build the city in a way that supports walkability - which is not how 99% of america is built.

We do want some Densely populated city areas that allow for walkable neighborhoods.

But,If we're going to have non-walkable suburbs we should definately have some space around our houses and not crowd them up together when there's space in every direction you look.
Cardinality is the number of elements in a set.

If every element in set A is in set B, and there are elements in set A left over it's larger because that's what larger means. {A,B} < {A,B,C}

There are countable and uncountable infinite set's. All countable set's have a bijection with N. However, there are more than two sizes of infinite sets. Real numbers < Imaginary numbers.
> In all the countries where the share of public transportation is significant, the main reason is economical. Gas is more expensive in the EU, free parking is scarce, wages are lower, etc. Actually walkable cities help, but it's not like europeans couldn't find a use for a car if they could easily afford one.

No, the main reason is government policy, most obviously in town planning. There's simply no place to park, and enough traffic that the journey is neither fast nor relaxing. The result is that people who could easily afford to (e.g. my friends working at Google or Facebook, or in finance) don't own cars, and use public transport to get to and from work.

Walk round the suburbs of European cities on a weekday, and you'll see lots of parked cars, in rich and poor areas. People own them, but don't find them the best way to get to work. They use them at the weekend.
s/ frequency/ frequency hopping/r
funny funny

man of the rhymes were not from questions about Silicon Valley

Nice theme for the setup, I enjoyed it
I wonder what ants think of airports? Or what mice believe about tube trains as they scuttle under the platform.

We are separated from mice (or at least somewhat similar animals) by approximately 40m years of evolution, I think that the separation to a Galaxy altering level entity would be much more profound, and frankly we wouldn't understand what it was if it came and tickled us.
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I don't think societies/civilizations are a viable organization scheme on cosmic time scales. What if very advanced civilizations all reorganize themselves into symbiotic aggregations of less-than-wholly-individual entities? Communications between these entities inhabiting virtual reality is so fast that the aggregate seems like a hyper-intelligent hive mind to human-like sentience?

If we take mind upload as a given, then it should also be possible to create "clones" of our minds with ease. This level of technology will have a profound effect on the value society places on individuality.
FWIW, journaling has been useful to me. I've run into bugs and thought, "I know I hit something just like this before. Oh wait, let me look through my debug journal and see if there's something in there!" And often there is. It saves me having to do web searches or guess and use hunches. I can always fall back on those things if it's something I haven't seen before or is manifesting in a different way.

I'd go even further and say that I've often wasted time chasing down a hunch that was completely wrong.
Sorry, but you are just plain wrong. Snowden revealed that the rabbit hole is very, very deep. The Internet has been being recorded for fifteen years now. The spy agencies have given themselves free reign over our technology, altering it according to their secret doctrines. Do you think this is just a 'bad practice'?

>There aren't radicals being "spirited away" wholesale by a huge technocratic dicatorship using advanced tools of oppression. It's just conspiratal, fantastical cringy nonsense.

How would you know? We, the people, no longer have the ability to determine if this ever happens. It's no conspiracy, either: its a fact. The NSA is a sovereign unto itself.

I'm sorry to tell you this, but you need to look closer. You are trivializing the truth, which is a heinous apparatus has been constructed in order to control us all.
You see that a lot on Amazon actually. I almost exclusively buy books from various Goodwills around the country, via Amazon.

The ultimate solution might be delivering a palette to Amazon and letting them manage & ship them for you (as Amazon does with some used sellers), but I can see why Amazon might not want to shoulder that burden.
Haven't found any info of the availability or price. Interesting concept anyway.
> You can prove that if you try to map each integer to some rational number, there will be some rational numbers that are not on that list --- there are more of them.

Did you mean reals here? There _is_ a (bijection) mapping between integers and rationals.

https://en.wikipedia.org/wiki/Cantor_pairing_function#Cantor...
The more interesting part here, is that Zuckerberg being 31 years old, and having a life expectancy of 82.3 years, means the people who insisted on this agreement believe there is a significant chance of Facebook still being around 51 years from now. By comparison Yahoo is 20 years old and not precisely in its prime, and Sun Microsystems existed only for 28 years.

That said, it means investors are betting on FB being a long lived (software) company, such as Oracle (39 years and counting), Apple (40), Microsoft (41) or, in the extreme, IBM (105).
Someday they will be I'm sure. Probably part of the SoC.

But not yet, software is not ready for it yet.
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The python stuff was just vanilla MCMC sampling with the Metropolis algorithm.

Quantum is popping up because this is in introductory series aimed at people who want to understand QMC.
You could argue that, with Youtube, Google has more media content than the other ten combined.
Yes, but then the other shareholders can drag him to court over it, and he will most likely lose, because you can't vote to give yourself more power willy-nilly.

...which is the whole point of this independent committe working through this change. They're making him give up dynastic control, in exchange for the ability to cash out without losing control.
Yes, but ultimately it goes back to being unable to hire at current wages. Let's say that consumers stopped doing business with Yelp and they did not raise wages as a result. Yelp does not have a monopoly and someone would create a competing business and hire away their employees. Yelp would either be forced to raise wages or do without customer service/go out of business.
You mean illegal transactions.
It appears to require Docker. How will this play out with Windows only software and programmable lab equipment?
Choice paralysis is something that economists have known about for some time, but seem reluctant to talk about (because more choice has to be better).
1. Advanced societies have probably solved the aging problem, leading to either extremely long lives or effective immortality. As long as these societies keep reproducing (and they will, unless they deliberately engineer out the urge to procreate, which I consider to be unlikely), they'll need space to spread out.

If they had as little agency around the issue of population control as you suggest, this makes me question their status as "advanced."
Hey, I'll bite. Why do you think that?
Ok , so i used mytemp.email .
Got following mail .
(It actually signs up)
http://imgur.com/6VYhvvi
Super curious about this. Do you have a source? Any idea what equipment is needed to build these blades? I wonder at what point it becomes cheaper to move the equipment instead of the finished blades and build them on site. Or take a hard look at airships again http://www.newyorker.com/magazine/2016/02/29/a-new-generatio...
Apologies, I should have used a better phrase. Although I still think he fits the dictionary definition of the word ("an eccentric person, especially one who is obsessed by a particular subject or theory."), I can see how it might be interpreted as more demeaning than that.

I stand by my opinion that the ideas expressed in this interview are bizarre and incoherent. Then again, many very well-educated and well-credentialed people have held weird ideas about the mind.
There is already a global currency which works great: USD. I live in Pakistan, and I regularly pay my AWS bill, IDE subscription, Netflix, VPN, and a lot of other things with USD.
That reminds me of a media report I heard a while back from (I think it was) Switzerland where apparently speeding tickets are proportional to both your wealth and the amount over the limit you were. Some guy had landed himself a 6 figure speeding ticket.