skysight-inc/HackerNews huggingface dataset:
Since 2012, I'm interested in financial markets. I read some university books. I trade from time to time (mostly index ETF and futures/options for experimental reasons).

I would argue that ~80% is quite optimistic estimation. I think in long-term more than 99% of retail day traders lose money.

It's NOT because making money on financial markets is ridiculously difficult.
It's because if you trade frequently, you get feedback from market pretty quickly.
The feedback in terms of profit and loss of your money.

If you become day trader, I would guess that you want beat the market (otherwise you just buy and hold index ETF).
It means that you as a day trader is willing to take risks to lose money in case you are wrong that you think you are able to beat markets.

What does it mean "to beat the market" in long-term? It means that you are smarter or faster or have some insider information. In other words it means that you have competitive edge.

Well, obviously, average person doesn't have competitive edge against hedge funds and other institutional investors who hire people with outstanding intellectual capabilities. Just read hedge fund interview questions to see how they filter people.

Other way to estimate your situation as a retail day trader: if hedge funds don't want to hire you, why do you think you are still capable to outsmart hedge funds while you can't answer their interview questions for trader role?

I don't say that it's inherently impossible to beat the market as a retail investor. It's fairly possible if you are REALLY smarter than others. And in this case, you most probably are capable to impress professional traders and investors while talking about markets. If so, they will bring you their money, and incorporate hedge fund, and you are not retail investor anymore. Just like Michael Burry did.

In other areas, ~99% of failed attempts is also true. For example, ~99% startups fail to make money. So it's normal state of affairs.
Until Congress acts, we can expect the Zika Media Scaremongering Pandemic to continue.

Once the funds are dispersed, Zika can go off into the night like SARS, Swine, Bird flu etc.

Why hasn't Congress acted to give away billions of taxpayer dollars to pharmaceutical companies?
Perfect consistency is too stringent a standard for HN moderation, because we can't see everything that gets posted here and it would drive one mad to try. When you do see something we've missed, we'd appreciate your telling us so we can fix it. The way to do that is to email hn@ycombinator.com because (in a nice bit of circularity) if you post it here we might not see it.

As for whether the rule itself is too strict, I really don't think so. It's rooted in long experience of what keeps this place relatively substantive, and like a number of HN's rules goes deeper and has subtler side effects than one would suppose. The principle of remaining neutral with respect to content, presenting it in a way that invites readers to make up their own minds, serves HN well. Underlying that are the principles that the reader is smart enough to do so, that it's good to ask the reader to work a little, and an emphasis on the content itself rather than the submitter.

That's not to say we never make exceptions, but the OP is a good example of where we wouldn't, hence my comment.
Brain's chemical signals seen in real time
fair enough. the way you worded your post makes it hard to tell whether you're saying these conspiracies/theories are true.
> Guix comes up on every Nix thread on HN

Sorry, and thanks for taking the time answering.
> Is Amazon or Azure or Heroku really any different?

Nope, and thats why I don't use them. There are situations where they make sense, but people should be much more skeptical about them. I don't have stats, but IME I've yet to see a company that actually saves money by using them. I've seen one company that did save money the first year, but got too addicted to "just spinning another instance up" and stopped optimizing their code. The next year they were bleeding cash.

So, speaking from my experience: It's more expensive, less configurable, and unreliable. Why do people keep buying the cloud lie?
Open vacation means that you should definitely take vacation. Normally when you leave a company, they have to pay out your vacation time. This is great for companies or fields that turn employees quickly (like a lot of these tech companies).

If you don't take the time it takes to feel comfortable with not getting that closing payout, then you are compromising your value.
The problem isn't having to make sure that you've gensymed everything. I said I'd be okay with er-macro-transformer, from scheme, which has the same problems, albeit with proper hygene and with rename instead of gensym, which is nicer (and indeed, in CHICKEN we have ir-macro-transformer, which is like syntax-quote, but better, because it operates on the generated output instead of on the input). The problem is gensym itself.

Most people think that the only axis macro systems rest on is hygenic vs non-hygenic:

Hygenic |Non-hygenic
syntax-rules|defmacro and gensym

This actually isn't true. Macro systems rest on two axies: Hygenic vs Non-Hygenic, and Lowlevel vs Highlevel:

Hygenic Lowlevel |Non-hygenic Lowlevel
er-macro-transformer|defmacro and gensym
ir-macro-transformer|
sc-macro-transformer|
--------------------+----------------------
Hygenic highlevel |Non-hygenic highlevel
syntax-rules |???

Highlevel macros use declarative pattern-matching. Lowlevel macros are imperative. Hygenic macros guarantee that there will be no name-clashes in a rename. Depending on your language, gensym may or may not do this, but usually does. However, hygenic macros also guarantee that all renamed expressions take on the value they have at in the environment within which the expansion occurs. Gensym does not, and never will, do this. This is acceptable in a Lisp-2 with packages (barely), but in a Lisp-1 of any sort, there is an extreme risk of function shadowing, and other nasty bugs (see http://community.schemewiki.org/?hygiene-versus-gensym for details).

Hopefully, this explains why I insist on hygenic macros, and why I think PG really screwed up by not adding hygenic lowlevel macros to arc.
Show HN: Youtly – Make and Share Playlists
First time I heard of such rates in Berlin!

I guess they pay that in order to compete with London?

Else they don't seem to correspond with Germany's market and cost-of-living...
It used to be much, much uglier - I think they had taken inspiration from the default ASP.NET error pages...
Previous discussion: https://news.ycombinator.com/item?id=9584325 (458 days ago, 211 comments)
Removing the clickbait title from an article that is otherwise valuable is a good thing.
AI doesn't need to have the same reward signals as humans (hunger, sleep, defense, sex, cooperation, creativity), so I don't think we should worry about if we need to pay it or if it will have the necessary electricity in the future.

We select what reward signals to give an Reinforcement Learning agent and it learns behavior in order to maximize its long term rewards. If we create an evolutionary AI system (in other words we make AI that will die after it lives its life course), where each generation improves upon the previous ones, and include gene swapping and such, then it will naturally develop the same desires and fears as humans, because its top-most reward signal will be survival and reproduction. From reward signals follows behavior learning. We just need to make sure it optimizes for our well being as well.
They would go to 0.01, but there was no insolvency in the game (also no leverage, if memory serves).
"Agreed (+1: 7, -1: 0, +0: 0) in FESCo Meeting 2016-08-19"
Snowden documents definitely link Shadow Brokers’ leak to the NSA
To be honest, it's very difficult to have a clear view on whether is makes sense to call the Russians on this or not. We know too little and we speculate to much :-)

Plus, for a USA agency, it goes without saying that when shit hits the fan it's either Russians, Chinese or Aliens not necessarily in that order.
What's funny is how long Bob goes on with the logical arguments when it has nothing to do with logic, and the CR told Bob that ("that option is not available to me"). The dropdown the CR has in front of her does not include "remove charge for router maintenance". No amount of arguing is going to change that. Bob is arguing with the wrong person. Bob asks for a supervisor. Supervisor says that it's not on his dropdown, either. Maybe they're lying, but it doesn't matter if they're keeping their stories straight and Bob's not threatening to leave Verizon.

johng has the right idea: go argue with someone that is empowered to do something about it.
Just order tea.
I had the same experience. People who still use java should try to be more upfront with it, so others don't waste their time...
So, everyone's basically saying:

> Google sucks

> Don't rely on Google if you want your business to succeed

> This is old news! Happens all the time

> Google = SPoF

...you're all looking like trolls to me. Please, do tell how Spotify manages to service 60+ markets with some core pieces of infrastructure on Google's Cloud offerings.
considering that mortgage CDS-es total was on the scale of only $1T and it was enough to sink the economy...
> Many companies are horribly operationally inefficient in many ways, but they often don't care if it's not actively costing them significant market share.

My experience suggests otherwise. Big organizations are bureaucracies carved up into little fiefdoms, each little lord trying to maximize something different. The boss of the receipt scanners wants to increase headcount, not reduce costs. As a management consultant, I encountered that situation time and again -- an executive choosing an outcome worse for the company, knowing it'd be better for him or herself, or simply out of pride, laziness, or malice. There's a reason why Dilbert rings true for so many office workers.

A new CEO can try to clean things up, but they can't fire all the middle management simultaneously, so the ship turns very slowly. Going back to the software metaphor, it's not the issue of short-term vs long-term thinking on patch vs refactor, but the problem that the system is live and must be highly available during maintenance.
FWIW, Dropbox also points you to buttons that don't exist.

When you delete an account, DB keeps charging you. There's a nice FAQ that explains to push a "review subscription" button and blah blah, but in reality that button doesn't exist.

The button isn't there.

Support will "fix"it for you one-off, but not change the button. Wonder if this dark pattern is worth 3-4% of revenue.
I don't understand why this article is so long.

It can be boiled down to "I am afraid of rejection, and I don't want to put myself out there."

Rejections suck. We've all been there, and nobody else out there is responsible for your mental well being.

Why are you afraid of a simple "no" or a response out of an obligation? Maybe the person you're asking out to coffee is a Mormon or has high blood pressure and can't drink caffeine, or he/she doesn't like the taste.

You miss 100% of the shots you don't take. I know that I personally regret everytime I wanted to ask somebody out or even ask for a raise at work, but didn't, cause "that would be weird".
>They will get the best jobs (or not have to work), the best mating opportunities, the best everything.

This is very much impossible. Above average? Probably. But then they become satiated with the above average things that they do have, get bored, adopt a new definition of "average", and wish they had the bank president's salary. The bank president wants to be president of Goldman Sachs. The president of Goldman wishes he had a wife like so-and-so's.

Ambition is fine and all, but once you start measuring your life that way there's nothing but a black hole all the way down.

>If you want to coast through life, that's fine, as long as you have a good understanding of the costs and benefits.

Same thing definitely goes with viewing life as a competition.
Artifacts of wealth: patterns in the evolution of collectibles and money
Are you familiar with C# or Visual Basic? LINQ [1] is a tragic example of what happens when a host language does not support higher-kinded types - every time you use a LINQ method on a concrete type that may have important semantics, its (static) type gets downgraded to a plain "IEnumerable<X>". This can cause major bugs and headaches when trying (intentionally or inadvertently) to write code to abstract over various combinations of LINQ flavors such as "LINQ to Objects" and, say, "LINQ to Entities/SQL".

The LINQ abstraction is leaky, half-baked, and not as safe as it should be. Some of the various "LINQ to X" flavors are actually unable to support certain operations (cf. [2]), so your software can unexpectedly fail at runtime.

If C# and Visual Basic had support for higher-kinded types, then your LINQ-equipped thing wouldn't have to be punted back to an IEnumerable - it could retain its (static) type after applying LINQ methods.

[1] https://msdn.microsoft.com/en-us/library/mt693024.aspx

[2] https://msdn.microsoft.com/en-us/library/bb738550(v=vs.110)....
Thanks for a great answer! Similar threads keep popping up quite often here and I can see why. It probably seems romantic and all that to beat the machines, beat the armies of PhDs and make some real cash.

But for a retail trader, it probably can be summed as 'don't bother, you are strongly against all odds, proceed only if it is fun to do and don't expect to make any money and lose all'.
Analysis of protein-coding genetic variation in 60,706 humans
That sounds awful. I have never had an employer ask me for a doctor's note (across industry, private research, and working for a university).
Current discussion: https://news.ycombinator.com/item?id=12332140
That's steganography not cryptography and generally considered to be the red-headed bastard step child of actual intelligence work. Don't be ridiculous.

Its some 4chan racist idiot's idea of a red herring.
I don't know that the comparison with Spotify is very fair - I would imagine they have a direct contact to employees.
The feeling you need to explain yourself comes from where? I don't need an answer to that. But look within yourself, figure out why you feel you need to explain yourself. Did you feel unheard as a kid and now you need to justify your thoughts and needs? You're an adult now. You make the rules and boundaries surrounding your own life (within the confines of the law) with no other justification than I am.

You don't drink coffee... millions of people don't. I don't eat peanuts, I'm not allergic to them, I just don't like peanuts. When there's peanuts, I don't eat them. No justification required.

Not that I'm trying to project what I think you should do, but I will tell you, when you stop feeling like you need to justify everything (I went through this too), suddenly life feels a little easier... and life's pain in the ass enough without getting in your own way.
> The technique doesn't work in practice otherwise.

I don't see why. Functions in a strict language are evaluated lazily. Any type error within a function wouldn't spread beyond that function.
Pretty sure if Google guts Spotify, Spotify can literally call Sundar Pichai himself on the phone to get it resolved. There's a scale issue there in terms of whether or not Google considers you worth bothering with.
By being Spotify-scale, thus forcing Google to care about them. See also: Snapchat.
yeah, looking into filing an informal PUC complaint now. I did later in the conversation mention that I was going to be exploring other internet options. Of course that didn't make a difference in the conversation.
If it works on FreeBSD it will probably work on Dfly. They're still pretty close in terms of userland, and I don't know this for certain but they probably take many FreeBSD changes and vice-versa.
I mean great, but you still have hookworm. It may well be worthwhile to identify and isolate what about having hookworm might be preventative for asthma and develop it into a therapy, but that's not quite the same thing.
Working as developer intern for Dutch startup, from Brazil (I'm Dutch btw). I get 400eu per month. Nearing the end of the internship and they want to hire me, curious what I will be offered - hope I'll remember to report back :)

Should I ask for a typical Dutch salary or a typical local salary or somewhere inbetween?
W3clan – User Curated Tutorial Network
[ w3clan ] Tutorial Network. Platform to Create Tutorials with your Own domain and Sub-domain for free :- https://w3clan.com

Each courses have their own domain or sub-domain for free to all users.
TensorFlow doesn't yet do loop fusion (though I believe the specific example shown in that article may already be done via constant folding). But if you have a bunch of elementwise operations, JIT-techniques can reduce the number of memory passes over a buffer. If your model is already very computationally dense (time dominated by matmul or convolution), then this won't help as much, but otherwise, JIT techniques can help.
Deutsche Bank’s $10B Scandal
I don't know how others feel, but as an Intel investor, I prefer that Intel use the capital they have now (their fabs) to generate maximal profit, rather than speculate on whether alternative ISAs will take over as a result of not exclusively making x86 chips. Your strategy involves foregoing profit now, in order to hopefully make up for it later.

I think you're missing the important point that Intel can take away market share from TSMC using this strategy, thus succeeding regardless of whether x86 or ARM wins in the end.
Fine, then I could write the same article about the traps inherent in trying to be useful to others.
Spotify will have a phone number of someone they can call.

I've had this issue with google too. They'll shut down your account, your whole account - google apps email and all - if an automated system detects something dodgy. In my case an automated system at ebay accused my site of phishing which it wasn't.

There is a paid support option, but when your account is shut down you are unable to access the required code.

I don't think you can appreciate how inaccessible Google is until they decide you're a bad actor.
By the way, the reason they said that was no doubt to motivate the students to choose correct boundary conditions for some Sturm-Liouville problem (as the previous poster sort of alluded to)
Perfect Intro to R
Good article, but ugh, please leave Shakespeare alone if (as you freely admit) you don't know anything about Shakespeare. Just because the real thing sounds strange to you doesn't mean that your "samples" are anything but nonsense.

edit To (preemptively) stress that I am not trolling: I find the topic and the writeup interesting and useful, and I appreciate the work that people do to share their experiences. But this is not a good example of the RNN working; it's a good example of the RNN not working, and should either be omitted or presented at least neutrally, instead of glibly saying

> I can barely recognize these samples from actual Shakespeare :)
Because social anxiety isn't rational. It is, unfortunately, something that a good many people (myself included) suffer from.
Whoa, this is amazing. Thanks for sharing!
I have some UI ideas of my own and could've helped, but I don't think investing time into Nix would be smart at this point. I feel like Nix lacks a clear vision of its future, focuses on desktop systems, while package management is not a big problem there, but it is on servers, and yet apart from Linux no other server systems are officially supported. No FreeBSD, OpenBSD, NetBSD.
"Oh okay. So you're gonna be making a lot of money, right?"

"Yeah."

"Right. It's not yours?"

"Well it becomes ours."

"How is that not stealing?"
>Your point that academia is fallible is well taken, but this doesn't mean "virtually everyone" is so biased/personally invested as to lack critical thinking skills.

And yet, if history has taught us anything, it's exactly that.
Good qualifier.

I spent some time earlier this year scoping out the tech scene in Wellington, New Zealand and Melbourne, Australia because both have so much more emphasis on living a good life. I wasn't able to find much startup activity in those two cities. I'm not sure if it doesn't exist or if I was looking in the wrong neighborhoods.
Firms will charge the most they can whether or not they paid money for the spectrum they use. It is the amount of competition (for that product and its substations) that will determine the ending price that can be charged. So no matter what the spectrum price was, if there was one company that bought all wireless spectrum, prices would be higher than if there were 5 companies that had rights to the spectrum.
And in your sixties you're too tired to think about it, and in your seventies you can't remember, right? ;)
Daughter lies about being raped by her father to teach him a lesson
>if hedge funds don't want to hire you, why do you think you are still capable to outsmart hedge funds while you can't answer their interview questions for trader role?

You're not playing the same "game" as hedge funds. They have different mandates and liquidity.

Putting 100 million into play on a position is completely different than 10k. You can choose different strategies, different trading vehicles, and different risk management parameters as a retail trader compared to an institutional trader.

So you don't necessarily need insider information or a massive technical infrastructure. You can get an edge, but it won't be the same edge you'd have running serious money.
Here's the link to the paper: http://physics.ucsd.edu/neurophysics/publications/nmeth.3151...
I surely wasted a lot of time reading the post, then readme on github, then "QuickStart", sifting through roughly a trillion lines of configuration and build options, and still failed to find a single code sample on fetching data or writing an adapter...
grep is simple to use from a simple command. Setting up a Java server and maintaining it is quite a different challenge then running a command with a few parameters. I wouldn't use it because if it goes down, fuck. If I need to extend it or decide to change something in there, fuck. I would want to use something that is easier for me to fix and maintain or my coworkers to fix/maintain, then have a product built from multiple languages that require too many different types of people to keep it running.
There is no place that asking someone out for coffee will result in a lawsuit or sexual harassment claim. You can even (usually a bad idea for other reasons) ask a co-worker out on an honest to goodness date without it turning into a sexual harassment thing if you do so politely and you don't ask more than once.
GitLab 8.11 Released with Issue Boards and Merge Conflict Resolution
Whoa... how did you find so many people to get coffee with?
> My day job is coding an MVC app in Rails / Ember. Fine, I won't be able to get past Chapter 11 in a book, but what am I REALLY missing out on?

Being focused on Ruby (or any dynamic language) makes the value harder to see, perhaps, since a lot of what HKT get you in a static language you don't need in a dynamic language -- its stuff you lose going from a dynamic language to a static language with an insufficiently powerful type system in exchange for typesafety. HKT let you have your cake and it eat it too (that is, lets you keep powerful abstractions that operate on classes of related types, while remaining typesafe.)
Why isn't this already is practice given ML advances in recent years?

Why are mammograms still being subjectively interpreted?

Are there not already companies today where you can upload medical imaging results and get back results that beat humans?
I deeply envy you.