skysight-inc/HackerNews huggingface dataset:
You misquoted me with "active investor"; I said he wasn't an "active trader". As I reinforced by saying he was long term, he is an investor rather than a trader.

Select your set of traders today. Make predictions on how they will perform. Compare with what happened.

Of course we should expect them to be better than pure chance. This article itself is about insider trading, which should give an edge. And yet, the hedge fund average is indeed worse than chance investment in the market (which approaches the index). The point is: we don't know who will do well. We only know in hindsight.

Hedge funds also have management fees (higher than index funds), and pay more in brokerage for their active trading.

> statistical arbitrage and high frequency methods seek to identify price inefficiencies just as Buffett does, but on much smaller timescales. It’s a difference of degree, not category.

A difference is the sustainability of the inefficiencies identified. Perhaps if Buffett was purely an old-school value investor, picking up discarded cigars for a few puffs, there's an argument for similarity. But (as I carefully stated in my comment), he also looks at prospects, not just value. A business with a long-term sustainable economic moat makes money at a compounding rate.

Now, I think we could have a largely semantic argument about whether buying a business with those prospects is just identifying price inefficiencies. To be honest, I can't really forsee how that argument would turn out, because of course you can view it as mispricing. Perhaps I can submit: more of the work is in evaluating the prospects, than the price (maybe you can argue the same for trading); simply because of the time-scale of long-term investing, you get to keep it longer, so it's more stable (but you can argue that that's covered by difference in timescales).

PS. Also, I do wonder that Buffett also has better information. His dad was a senator, and he knows lots of influential people. I don't think it explains away his success, but it would be some help.
Yeah but Wall Street is also the place where success MAKES you a professional. You won't see a guy who happens to save someone's life on the street show up in the ER the next day reporting for duty as a surgeon, yet that is how Wall Street works.
Totems of memories. Put them in a drawer. Forget them. Discover them years later and savor the rush of memories it triggers of that one trip you took.
The email RFCs explicitly say thou shalt not interpret the localpart of an email address, unless thou art the MTA of the domain in question. Even case folding is forbidden. And the wisdom of people who work with email is... the RFCs have good advice here: don't assume anything about how the localpart is structured.

You can generally get away with treating the names as case-preserving (as distinct from case-insensitivity), and you are probably safe in rejecting quoted localparts. But beyond that, even forcibly lowercasing email addresses, is likely to cause problems.
Just for some color: The only company that's given me a weekend challenge that ever gave me an offer was 8th Light. I've done live coding and whiteboarding with other companies and received offers, but the take home work has only been productive that one time. I've had code I submitted to these looked over by better programmers than myself and heard very few negative comments, all minor.

After some years of experience, I can't see myself doing one of these again pretty much ever.
There are lots of things that QA can't test well. Some bugs can only be detected at scale. If you push every feature immidiately, it's also very easy to roll back a bad feature immidiately. And you can notice and deal with performance issues much more easily than with weekly or monthly releases.
Wow, this is the most dystopian take possible regarding Slack. Half the time I can't tell if they're arguing against real-time chat or for IRC.

In any case I think that you could easily argue that most of these things depend on your organization and what use cases you have for Slack. But wow, I'm having a hard time visualizing how it could be this bad.

Before Slack, my org had no centralized communication. That sucked way worse than having Slack.
Pineapple Fund matching donations to Internet Archive up to $1M
What is insane is that most people who love driving would probably be happier if those who didn't want to drive were happily serviced by decent public transit.

So everyone has to be more miserable because of myopia and indifference.
They do not; not with out paying. That would be a taking. They have to pay to use the city rights of way just like carriers do. Just because the federal gov is doing it does not mean it is free. In China or other authoritarian governments they just say we are putting fiber here and a tower there and if anyone complains they can just put them in prison or whatever they want. In the USA that is not how it works. The federal government would have to buy the right of way just like carriers do. I don't think that will make it cheaper or faster to do.
Hardware trends [pdf]
I remember when I’ve switched to bnet ID and my tag became username#1337. People sometimes ask me if I’ve bought the name or something like that.
one issue is that Slack _does_ try to sell itself as the repository for information. It tries to suck in Google Docs links, it has its "Files" tab, it sells its search.

It's an awesome chat application, of course. Not as much of a fan of it as a document store.
Denmark has some of the lowest waiting times among OECD countries

https://www.sciencedirect.com/science/article/pii/S016885101...

and some of the highest physician density in the developed world. I'm German and have worked in Denmark, and have never experienced waiting times.
putting an age limit of 40 is probably skewing the result as women who want to have children have a biological constraint to have them in their 20s or 30s when their fertility is higher.
Possibly, which is why SpaceX wants to do exactly that[0]. They're launching their first test satellites shortly[1].

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

[1] https://www.geekwire.com/2018/spacex-gets-set-launch-first-p...
yep. When managers and their subordinates are just following "the policy" instead of improving it, makes sense that everyone hates the big bad JIRA monster.

Most managers and non-managers never get to figure out that JIRA is there to help them, and as such they MUST change it at the first sight of a problem. Those who fail to realize that it is a malleable tool that must be configured according to needs and particular situation are missing out.

But this is not really a surprise. In 99% of orgs I worked for JIRA has been a "dictated tool" instead of a "chosen tool", which means that those who dictated it are not the ones who are using it - and are basically just there to spread suffering to those who do use it.
WOW!! Another one after Vinay Deolalikar's! I lack the mathematical expertise but would certainly love to hear what experts have to say on this one.
Before I accept a take-home project, I explicitly lay out what I will do and the maximum amount of time I will spend doing it. I've walked away from companies that demanded more than I was willing to give.

I dislike take-home tests less than I dislike whiteboard interviews, so I try to be flexible, without being a pushover.
Signal will work with Google Voice, but as far as I can tell you still need a smartphone to use it. Without that, you can't even set up an account because you need to scan an OCR code first.
This is the same taxonomy they taught in my college (a military academy). Freshmen learned to lead (what we called 'manage') themselves,sophomores to lead 1-2 freshmen, juniors small teams,and seniors organizations (100+ students).

In hindsight, I can't imagine a better way to build one's self into a leader.
That's right, but those rule prevent cities from making rules that prevent any use of the airwaves. Nationalizing a 5G broadband network means taking the rights of way away form the cities. That could not be don't without paying for it. That's not going to make things any cheaper, at least any time I see the federal gov pay for things, it does not make it cheaper.
Job Hunting INfographic
It's a good test to see if you'll balk at doing the kinds of shit they're going to throw at you once you're hired.

Oh, you had dinner plans tonight?
You want to see your kids before they go to bed?
Sorry, our engineering team generally works 11am-8pm. You need to be in the office.
From the little I've seen about the law, very rarely are things air-tight. For jurors in all trials, they often talk to them about the "CSI effect" where the average person assumes to convict there's tidy, irrefutable forensic evidence.

I can see how parallel construction allows someone to lean on that and help blow off any possible exposure to insider knowledge to avoid the burden proof necessary to convict. White collar crimes have always been notoriously hard to prove.
I’m not the previous commenter, but I’ll share my thoughts on this as someone from a lower-middle-class background.

Having to support yourself financially while going to college makes it far more difficult to meet the standards that top firms demand. Extracurriculars? Tough to justify when you’re already working 40+ hours a week while taking a full-time courseload. Good GPA? A lot harder to keep up when you get called into work when you’re supposed to be doing homework or studying. Internships? You have to start applying at the start of your junior year nowadays, which is when a lot of students are transferring from community college to 4-year schools. So no recommendations from professors, limited relevant coursework, and limited access to a (competent) career center. And you wouldn’t believe some of the looks I got from interviewers when I told them I went to a mediocre public school instead of my state’s flagship school because I couldn’t afford the latter, even with student loans. As if it’s inconceivable that I couldn’t afford an extra $4,000/year out of pocket while working in a warehouse.

So yeah, after I got a job in my field in spite of all of that, it’s hard not to resent coworkers who had easier paths because they had better support networks. This is unfounded personal bias, but I also can’t help but think of those coworkers as less capable than the minority who put themselves through school independently like I did. But mostly it’s a general sense of frustration with the difficulty of getting into competitive jobs without a significant support network.
It may be a throwaway for the candidate, for the employer it's $XXX,000 a year and potentially ending the search for better, more suited candidates.

If taking an extra an hour of time to sell your work is "throwaway" then that person is either shotgun applying to jobs (and not being hired for a reason) or they're not taking their application seriously.
“If you can’t dance, don’t blame (it on) the (dance) floor”
While there isn't an official RFC yet since the protocol is still in the RFP stages[0], the amount of new cars on the road will require roughly about the spectrum allocation as what's needed for cellphones right now. If we tried to cram all of this into existing 5GHz range of lower frequency spectrum, it's simply not enough. 5G has both a larger spectrum allocation and throughput of data available to it.

Edit: The cost of putting in a lidar system for your car won't be too expensive (probably <$1000 when done across a manufacturer's whole fleet); but think about having to pay for another cellular line on your phone bill at current telecom prices. It would be prohibitively expensive to the end users for mass deployment.

[0] https://www.nhtsa.gov/sites/nhtsa.dot.gov/files/readiness-of...
But the infrastructure (underground ducts, fibre junction boxes, and the GPON fibre) will last for decades, so it's a very reasonable investment to be making.
http://archive.is/WtX8f
The Optimal Strategy for Crafting a Software Solution
Why have usernames at all?

Think about it ... people who have you in their addressbook already have nicknames for you.

People who you let see your first and last name can already see that.

About the rest of the people - why do they care?

Only because you want your REPUTATION to be communicated to others in English. Hey it's "someguy22"!!

Yeah that's a pretty limited thing. Could be useful but really, how often do we remember names of others? Only celebrities. And who actually cares about Aziz Ansari and his sex life? Or any of the other dudes who we never met? Or why is one dude "the" Bill Gates and the others with same name are not verified by Twitter? My point is, think about what is the sociological meaning behind usernames.
My idea was that you should manage your own data, and have them tagged with the rights to broadcast or syndicate.

The gist of it would be:

If I write something as a tweet, wordpress would be the first to pick it up and possibly manage it. WP would be more of a CMS for your data. Write a tweet, it can be shown on your blog, and possibly to twitter and/or facebook. This would work for other content types. The value of twitter and fb is the network affect and curration.
I’ve actually noticed a return recently to simple “HTML native” UI design on the web. Not as many people trying to emulate an “OS native” experience by adding a bunch of extra DOM elements to render borders and effects and such.
Couldn’t you just hook the wayland compositor to detect where focus is and eat up all those inputs?
Were there enough public support the federal government absolutely could take those spectrum and land rights away.
> It's just so damn easy, especially if you use `FROM python:3` instead of `FROM python:3.6.2`. It auto-updates every time you deploy.

There's an issue with that. You're trusting whoever builds the python:3 image to actually update it and be secure.

There are a couple high CVEs in python:3 image, including a 10:

https://security-tracker.debian.org/tracker/CVE-2017-17458

https://security-tracker.debian.org/tracker/CVE-2017-17499

Then there are a bunch of other medium and low CVE, mostly from imagemagick, which is kind of a shame to include if you really don't need it. Same goes for that 10 for mercurial if that's useless to your project too.

You are best off receiving a base image from a trusted source, eg, if your organization maintains a set, or there is some distribution you trust who provides just the OS. Grab the most minimal set, then add your application on top of that. Make sure you go through a check to ensure you're not adding any insecurities yourself.
It shows a lack of familiarity with the tooling. It's actually quicker to write something that prototypes the model you're testing -- as little as a few lines of code -- that eventually saves a lot of repetition.

That prototyping later becomes extremely useful for building local databases -- a strong factory suite means I can rebuild my local database and have it completely populated with randomized dummy data. Changing locales on some packages means I can have a local environment populated with data tailored for a completely different country and language, for example.

Re: surfacing bugs -- in a lot of cases yes. And a lot of bugs have been found this way.
Really?

Considering I'll have to pay all taxes, medicare, ssi, etc. on all self-employment income and that the time I spend working on your challenge is time I'm not spending chasing other business, the contractor rate that I'm going to charge you is likely going to be around 300-400% of what I expect my salary to be for that time.

If you can't afford that, I'll probably think you're either exploitative or delusional or both.

But then again, your 6 hour programming assignment is worth about $1500+ of my time.

We take a salary because we want to offload risks and time spent doing sales to source our income, but we shouldn't have to do throwaway work for free to get that. Sounds too much like 'unpaid internship' to me.
For wireless carriers, the three highest opex costs are 1. Real estate (lease costs, no one owns their cell sites) 2. backhaul, which today means fiber 3. employees

Nationalizing the 5G roll out will not help with any of these costs, the real estate costs are more and more coming from local municipalities or
other local entities to place in the right of way

Doesn't this situation put a moral hazard on municipal broadband? If a city runs the broadband, why wouldn't they use their government power to keep out competitors and maintain a monopoly?
I think the equivalent of the Nobel prize for Mathematics is the Abel prize not the Fields Medal. The former rewards lifetime achievement.
I don’t see why it matters when it took place. I’m curious, don’t you think he may have an incentive to benefit his russian business partners, both for past and future deals they may make, at the expense of the American people? Why wouldn’t he choose to benefit his russian business partners, at your expense, if he has an opportunity to do so? The incentive is clearly there.
Man that makes me so upset for you
Same here not to discount but for me using BT and the loss of wires is worth it more then any other benefit.
This is where I think that he RDF/Semantic web part went wrong. That and there were other networks that tried to lock down everything.
I realize that I am nitpicking the nitpicking here...

> JIRA has a screen real estate problem. Have you seen the articles about SERP shrinkage, where a G results page in 2004 was mostly results and now it’s mostly ads? JIRA started out this way. 90% of the text on the screen isn’t your project’s information, it’s JIRA chrome.

Press "z" and "[" in JIRA Cloud to hide the top filter bar and sidebar, respectively, when viewing a project board. These were the first shortcuts I learned after the redesign about a year ago.
Like it or not, the RFCs have lost. "How Gmail does it" is now how email works in the minds of a stupendous number of people. So if Google says 'johndoe' and 'john.doe' are the same, we're stuck with the reality that 'johndoe' and 'john.doe' are the same.
That type of thing actually already happens, I work in the industry and I have seen it happen. A state run governmental fiber network was put in place and the government bodies prevented other carriers from placing fiber and forced the wireless carriers to use their fiber at a premium.
Well done. Would you mind sharing details for your design-related productized service?
It sounds like your software might be too complex and may benefit from being broken up into smaller, independent components.

With a reasonably well-defined, decoupled system, you should be free to run a targeted test suite without much concern for affecting consumers (assuming you're not breaking contracts).

Moving to CD(eployment) significantly reduced release complexity and increased quality of several of the system I owned in the past (which handled thousands of TPS and were affected millions of customers and dollars, globally, per day).

In fact, I preferred starting with a CD pipeline to kick off new services from the start so from the very first check-ins (even before any tests were written), the deployment automation was in place and all changes were going to the latest stage we felt comfortable with at the time (often production, since initially there would be no consumers). That sets an expectation from the start that when developers peer review and merge, their code is going to production.
A few of my friends did a now broken start up. I stayed out of it because nothing was formalized beyond the legal documents or the vision written on their mobile friendly web-page. It started out great, but three years in they spilt in two because they didn’t agree on what was important for their product.

I’ve never personally worked outside of enterprise, but the reason I wanted formalization is because even in enterprise, keeping management on the same direction is a challenge.

Sure there is almost always a power structure in place with a chain of command when it comes to enterprise, but relying on that, military style is typically terrible for productivity.

What we do instead is to create shared realities by talking things through and making appropriate changes before we formalize our now shared direction in the form of strategies.

When I have a disagreement with the IT manager who is my counterpart, we don’t ask our shared boss to sort it out. Instead we turn to the agreements and strategies on both development and secure operations that we’ve co-written and figure out how to solve our problem with what we’ve agreed on earlier. Sometimes this leads to strategic revisions, but it’s never lead to a break up sort to say.

Now, I’ve never not worked enterprise so I’m not sure how much of that stuff goes on there. It’s my estimate though that the use of social constructs like strategies isn’t really high on the agenda, especially because social constructivism is a soft humanity, but I know the lack of a shared realty is what caused my friends to break up into two competing companies. I also know it’s what led to them doing it in a shitty manner that caused customers to flee and their friendships to end.

They didn’t formalize their shared reality early on beyond a vision. They never updated the foundation of their shared reality to make sure they were still moving in the same direction, and they never formalized any of the resolves they did in meetings. Which meant that they had very little common grounds to stand on when their differences grew too large and erupted into conflict.
Google+... Didn't work.

Actually, I just went over there and Google+ looks like it's working just fine. Many parts of it are thriving and there seems to be a lot of activity in communities. Google+ is niche. Just because it doesn't have the ubiquitous adoption level of Facebook doesn't mean it failed.

I really hate this attitude in our circles that unless an app devours everything else and becomes a unicorn, it's a total failure.
This is, sadly, a self-perpetuating problem. If a group of gangs boarded a train car in Seoul and robbed everybody, there would have been a full news coverage for the next week and the opposition leaders would have demanded president's apology. Because such a thing is simply considered unacceptable. (Of course Korea has its own societal problems; gangs roaming in subway is not one of them.)

In America, everybody knows that public transit is dirty and dangerous, so when such a thing happens, everybody just shrugs it off. Middle class people don't want these ugly stations in their neighborhood; if they have one, they don't want the politicians to waste money on nicer benches or a decent-looking wall. What's the point? It will be filled with graffiti the next week.

So public transit remains underfunded, unsafe, dirty, and always late, and of course people point to that and say "See? We don't need more of these things. Let's build more highway."
Big Data Analysis: Analyzing Hacker News Stories
Have you seen the vending machines in Japan?
I think you are correct. Semantic web is a decent technology. It has some rough edges, but it has solved the technical aspect of the data interoperability problem. The only barrier is a social/political/business one: privatizing and monetizing user data is the business model of most of Silicon Valley. I always say that a federated protocol like email would never be adopted today, the business incentives just do not exist.
I would guess the ones who are smart enough to "parallel construct" are the ones that don't get caught?

The SEC looks at trading history when investigating insider trading. Never bought stock X, but 3 days before a merger you bought a ton of out-of-the-money call options? You bet the SEC will be talking to you.

Have a history of investing in a sector and make a not-out-of-the-ordinary large purchase of stock 3 days before the merger? The SEC might just choose to go after the bigger fish.