skysight-inc/HackerNews huggingface dataset:
True enough. I hadn't considered the fact that the majority of FaceBook video - at least today - is advertising (some direct, much of it advertising disguised as "content"), and a lot of cause-of-the-day spam.

My initial thought went to the idea that normal users would communicate primarily via video, by posting personal videos pertaining to themselves and their relationships with others. But of course on FaceBook, the users are the product, and we are being sold to the real market which are the businesses. What a world we live in.
There might not be a bubble in tech, but China is absolutely scaring me right now. If those Chinese bubbles pop, it might shake investor confidence in other sectors as well (e.g. tech).
"their VC cronies stuffing self-serving valuations down everyone's throats"

Whose throats? The other VC "cronies" who are buying shares at those prices?
Experience Before Products: Our Approach to Product Design
Why do deleted posts have more bottom margin than normal posts? For me, it makes it harder to tell how the posts beneath are nested.
For those with Faith, you've got your wise democratic currencies. But some people buy gold, presumably with those same democracies in mind ... are you against them doing that too?

As for the DAO, yeah I imagine it's got bugs. Hopefully less, and more transparently, than our existing contracts. But even if it fails horribly, other smart-contracts will stand on their own.

Do the market a favor and short the DAO (and fund an attack on it, if you can). That'll establish a demand for security and make you a pretty penny if you're right.

Even if you are right though, what would it mean? If Kickstarter got hacked or phished would that disprove all p2p funding sites forever?
That's what happened to me. I got into a very good position in my career.. and then it crashed. I'm more skilled than I've ever been, but finding work that matches my (broad) skillset is almost impossible because I'm either over qualified, or the job is far too specific. It's very strange to experience, so I've been working on freelance work for the past 6 months now.

Year-ago-me wouldn't have believed it. Bubbles suck, and the current tech industry reminds me of my own experiences - Pop.
For those of us who are young enough (30 or less) to not have witnessed the internet bubble at a conscious age, we might be tricked to think that we're in a bubble due to certain indicators. The NASDAQ index, the valuation prices, the money poured into venture capital, etc.

To those of you like me I recommend you to read about what was happening in 95-99. The panorama was crazy, and today's context doesn't compare to the one of those days.

At the end, if the macroeconomic environment changes, who cares? Yes, paying attention to the macro is important and that may even imply changes in strategy, but should you not start a startup because there's a bubble? Even worse, should you (person who hasn't built anything but criticizes everyone who builds something) try to convince your friends not to start startups because we're in a bubble?

The main difference between today and 1999 is that digital products are actually generating value in people's lifes. Please don't compare pets.com to WhatsApp
Those aged 65 and up control most of the investment capital in the United States. This is not a risk-taking demographic regardless if the capital is family money or managed money. It is a demographic that wants to preserve capital in exchange for modest returns.

The same can be said for pension plans who formerly invested heavily in alternative investments, and who now must ensure fund stability as pension payouts peak in the coming years.

Foreign investors and sovereign funds are under increased pressure to keep foreign currency at home, particularly in China and Russia.

Interest rates are poised to rise, held back by a US Federal Reserve loaded, cocked and ready to fire; thereby increasing VC carrying costs.

The global political environment is not favorable for economic investment. Highly publicized bellicose rhetoric and outright conflict is pervasive. Investors loathe the uncertainty and anxiety this creates.

So, this time its different

I suspect there may be strong returns to be had in M&A, particularly after Microsoft's aggressive bid for LinkedIN. I note even Twitter is performing well today*. I imagine there may still be strong IPO's, like Twilio seems positioned to be. But, I believe we're entering a less liquid and lower alpha period in investing.

I can't say I have special knowledge on the topic, other than being a close observer.

(Disclaimer: I do own TWTR)
> I don't think the bubble thing is true for our time, nor it will be in the near future, it's just tech has become more competitive than ever.

No disrespect meant, but this kind of thinking is exactly how bubbles happen and everything gets out of kilter. Like people who believe house prices will go up forever, so they leverage up - it's irrational exuberance (to quote Alan Greenspan). But eventually this imaginary money that people believed to exist, actually didn't, because the human beings that needed to work N hours to produce that wealth haven't actually been alive long enough to do it. And boom, it all resets.

I actually think one of the key tells for being in a bubble is so many people denying we're in a bubble. The talk of it alone is enough to spread fear and doubt. That moves markets. All that is needed is an 'event' that confirms the fears, and boom. It could well be a failed IPO.

Who knows? Not I. I was one of the idiots that bought lastminute.com shares.
Not sure if sarcastic, since there are already Wikipedia editors paid to polish and lie on the pages of public figures.
As the rate of innovation continues to increase exponentially, these so called "bubbles" will only grow bigger. The future will have A LOT MORE companies valued at 1000x revenue, not less. Think about all the new industries poised to exist just in the next decade: A.R. V.R. A.I., Bionics, Space, etc etc. Exciting times we're living in.
It's super convient considering congress is investigating their discipline processes after some incidents they've had.
Building the HRIS business case with ROI
Having been through interview processes at big tech companies recently, I invested some time in preparing a portfolio to try and improve my chances of success. What I encountered was that nobody is really interested in your portfolio (or even your resumé really). I appreciate your advice that a portfolio should improve your chances, but nobody from any of the companies looked at it. I'm not sure it's a good investment of time, considering how little importance is attributed to it.
maybe you can try something like chatops, ex: hubot
By all means, dig in, then. You can have my share. Lots of Sara Lee brands sausages and such (e.g. Hillshire Farm) have loads of it.

But it's mainly connective tissue with little nutritional value -- padding. And I'm not satisfied that pork MSM is completely safe from prion disease.
Gen. Embedding and Variational Bayesian Inference for Multivar. Time Series ('12) [pdf]
Sam HAS to play down the fact that we are in a tech bubble. He is, after all, a venture capitalist, so do note the conflict of interest here.

My friend referred me to this Bill Gurley article [1]. My metric for whether there is another bubble is not so sophisticated. I feel that there is a bubble when celebrities (like sports personalities) begin investing in questionable startups [2][3]. Harkens back to the '99 bubble.

Edit: Before you bring up Ashton Kutcher, a single data point does not a trend make. But yes, we've been in a bubble long before he began investing actually.

[1]: http://abovethecrowd.com/2014/01/24/on-bubbles/

[2]: http://www.vanityfair.com/news/2016/04/kobe-bryant-silicon-v...

[3]: https://e27.co/boxing-champion-manny-pacquiao-throws-his-hat...
Graceful Flying Girl in Town – The Emporialist│romanian Street Fashion Magazine
Same here. Apart from instructional videos, I avoid video at all costs. Takes too long. Interrupts my workflow. Is not office friendly. Video ads are way more annoying and waste bandwidth.

I can't recall any useful video in my news feed thus far.
Yes and no. Speculation creates bubbles when people overestimate but not when they underestimate.

Financial products are definitely not always overvalued either. Accounting was created so that we can properly evaluate what a company's overall value discounted for future earnings and they are pretty accurate (accounting was never my favorite subject so that can probably be better defined)
Dunno what sandwich shop you are going to that doesn't have any sandwich fixins or cheese. I only eat sandwiches that are full of veggies. The sandwich shop I go to bakes their bread daily. To recreate that at home I'd have to get around 10 components and chop them all. On top of that I'd have to stop by the bakery every day I wanted a sandwich.

Yes, you can cook at home, doesn't mean that by definition it is cheaper. Depends on what you eat and often how often you eat, if you have family, or if you prefer variety or stick with the same few meals.
this is where Box is king and they've pretty much been focused on businesses since the start. They've been inking partnerships with everyone from Microsoft to IBM to make their service king among corporate/enterprise users.

Box also has better security/access controls
Tesla to share all its Autopilot data with the US Department of Transport
You just jinxed us man. Taunting Lady Luck like that? Now we're really screwed!
It's bad in the way that most illiquid investments are bad... you will have to wait an indeterminate amount of time to extract any (or possibly no) cash. Whether you want to reallocate that illiquid asset into an index fund or burritos, you can't.
Fortunately the two approaches are not mutually exclusive. There are no rules about how the "distributed Web" must be constructed. As the old saying goes, there's more than one way to do it.
https://news.ycombinator.com/item?id=11902423
Latest update to my friend's 19 year side project
Well your comment suggests I'm a privileged and snobby type person, maybe youre right about the privileged part. I live in Maine and I wouldn't say in this town there's one focal point. Different types of folks can be found frequenting different places such as the town rec center and the locally owned coffee shop and yes there's two bars people commiserate at after work.
For the most part this community still integrates the wealthier living with the poorer in the same neighborhoods and generally speaking everyone privileged and lesser fortunate take pride in the local economy and integrate well.
Now maybe I am being snobby but I do hope everyone in a community has a unique place that defines their community to call their own. I realize that isn't always possible for everyone to put together
Apple will require HTTPS connections for iOS apps by the end of 2016
While the topic may seem trivial and the execution/implementation a bit too naive, it should be noted the author is a graphic designer! Check out David's homepage [0] -- original, if not very practical :-)

I personally think it's great to see such cross-pollination between various fields. It helps other newcomers to read about this stuff "in their own language", using a perspective of someone from their own field (as opposed to the usual academic / old-hand angle).

[0] http://www.lettier.com/
Final argument from the article: "now Trump thinks we're in a tech bubble too, so maybe it's true."

To which I say: "Even a broken clock is right twice a day."
We just lived through two mega-bubbles: dot.com and real estate. Actually three if you count oil. People now see bubbles everywhere and in everything.
> One analyst predicts Facebook will easily be worth $200 billion by 2015. Right on! And by 2020 it could be the first company with a $1 zillion market value, so buy-buy-buy, everybody!

Decided to look this one up. It hit $200B in late 2014, so that prediction was impressively spot-on: https://ycharts.com/companies/FB/market_cap
Why would the laws of thermodynamics apply to a secret society?
Hoping for a little advice: I'm trying to push for some development culture changes at work, one of which is doing more local, incremental refactors rather than large, all-at-once changes (i.e. the sort of thing for which one books 'architecture meetings'). Since we'll hopefully be massaging large parts of the codebase, there's an opportunity to jump into something new with both feet.

Question: what do you think of the thesis of pure4j [1] vis. frege [2]? Namely, are the advantages gained by switching to a haskell-like language far above those attained by simply forcing effects into a small part of the codebase?

[1]: https://github.com/pure4j/pure4j

[2]: https://github.com/Frege/frege
The Colombian Hit Man Who Became a YouTube Star
The only real indication that we are in a bubble is the frailty of the future of digital advertising. I don't think there are many hypervalued hardware firms. Advertising hinges on corporate and consumer purchasing power which seems to be healthy if slightly waning, and to a certain extent the personal tolerance of ads and highly abundant Web content. Outside of the US the appetite for both continues to grow year over year. While display on publisher sites has many weak spots, search and social ads a solid footing on most advertiser's budgets. They won't dissappear overnight. What will?
Probably. It also looks like some median filtering or a selective blur was applied to remove dirt/debris/bubbles, which tends to give things a painted look.
@Dang, commending you for leaving the comment in place - repugnant as it may be. This in stark contrast to the recent censorship at Reddit and /r/news.

Not deleting this reflects the maturity of YC and by definition refutes the very accusation laid against it. Kudos
> the advantage of having a self-hosting compiler is huge!

I agree that it's kind of neat to compile your compiler with itself, but it's not clear to me that this constitutes a significant productivity boost. There are countless other C programs that have already been written and can be used as test cases.

So I'm left wondering what the huge advantage that self-hosting provides is. I am interested so, if you have more to say on the topic, I will certainly read it.
Timeline of Events – Lindy Chamberlain – Creighton
Interesting, especially about the cultural division and politics.

Something to think about, since I'm thinking of swapping out some problematic C# code for F#. Pattern matching and a stronger, more expressive type system would be very nice. F# isn't as far off the reservation as Haskell, but I'm not sure how well throwing a monkey wrench, at the team will go.
I lived through it and yes, yes, yes... Today is nothing like dot.com. It was crazy... you had pre-revenue companies with no real working product raising series A, B, C, and then going public all within a year. Total unhinged market mania.
VCs have interests both ways. They can benefit in new investments if valuations are lower.
How does this compare with Heroku's buildpack system?
> Multiples will be crazy high as long as central banks keep interest rates crazy low

I have no idea how earnings multiples wound up with their pay-offs in the denominator. (Since it makes stupid things look bigger, and by default, anecdotally, most people agree bigger is better, I'm going to blame investment bankers.)

Thinking of a 22.55 P/E as a 4.4% E/P, i.e. 2 percentage points above the 30-year's 2.4% [1] is hugely clarifying. (I personally prefer the Shiller CAPE [2] for long-term broad-market assessments. It sits at 25.93, i.e. a 3.9% yield or 1.4 percentage points over the 30-year.)

[1] https://www.treasury.gov/resource-center/data-chart-center/i...

[2] https://en.wikipedia.org/wiki/Cyclically_adjusted_price-to-e...

[3] http://www.multpl.com/shiller-pe/
Ask HN: How would you rank 500M rows of data in 5 seconds?
We have a database (SQL Server) which has a table filled with stats. The table currently has around 10 million entries in it. The table is organized "horizontally" so that one user has one row, and we have about 50 stats in the table.

We have a leaderboard for every single one of these stats, and we want to have a "live" leaderboard - that is, the ranks are fresh on each request.

Right now we use an indexed RANK() query which can rank the top 100 in like 15ms. Top 10K is 100ms. Top 1M (or, offset 1M and get the next 100) is around 20 seconds.

At the very least, we'd like to rank 1M within a couple seconds (10x improvement) but ideally we'd be able to serve any number (up to say.. 10 million) of ranks in under a second. This is probably unreasonable, but it's our goal.

Is there any advantage to using a "vertical" stable structure where each stat is a row? That's where the >100M figure comes from - if we convert these stats into rows it's (number of users) x (number of stats).

Is there any specialized way of accomplishing this? Is the database slowing us down? Maybe there's a better way to store all of this stuff than in a DB? I was thinking perhaps storing it in the DB and an in-memory store at the same time, and repopulating the in-memory store when the server starts. But that wouldn't be much use if the in-memory solution doesn't give us a massive performance boost.

Right now we use dedicated servers for our application and database needs. We'd like to switch to cloud architecture but we want to both accomplish what is mentioned above while also reducing costs (we pay quite a bit for our current stack.)
Really happy with my oneplus one which I have had for two years now. Excellent battery life and does everything I want. One of the most important things for me is that it can run CyanogenMod vs. the crap android that is found on phones from LG, Samsung, Lenovo and others. CM is close enough to stock android + a bunch of extra tweaks/toggles that it's perfect for my purposes. I haven't run Oneplus' OxygenOS on it, but based on the videos and screenshots I've seen it looks like since their falling out with CM, they've basically re-implemented many of Cyanogen's features in OxygenOS.
Competing implementations of which part? There's already a number of clients out there.
A Google Trends search for "bubble" might also suggest we are not in a bubble. [I find a peak around 2009]
This post suffers from confirmation bias which feels weird coming from a writer whose entire accelerator is founded on principles which exploit other peoples' biases (e.g. others are biased toward teams with traditional credentials whereas YC evaluates more on accomplishments and building things)
Facebook wants to tell insurers and corporations employees and customers who might be a suicide risk.
I particularly disagree with anyone's opinion that Awk is not worth learning, if they proceed to whip out "cut" as an example of something worth learning.

Awk generates solutions to certain problems involving record and field delimited text whose succinctness cannot be approached by common scripting languages.
The Road to Running Haskell at Facebook Scale – Jon Coens [Nov 2015]
the internet boom (and I mean boom not bubble) started to flicker in 94, gathered steam in 95, and really got going by 96. Saying that was the time to bail out, before 97 98 or 99? I would not say that Greenspan "called" it.

bubbles are caused by collective overinvestment; that means that a lot of the ideas can be good ideas: if everybody else also doesn't invest in them at the same time. It's a bit of tragedy of the commons, it's the collective knowledge that's lacking in individual decisions.
A Glimpse Through a Cosmic Keyhole
Twitter Suggestions Algorithm is Broken. Here's Why
Metlia – 'go-metrics' reporter for ganglia
How is not devoting time to supporting a proprietary browser doing a disservice to the open web?
How many celebrity investments in how many different startups does it take for your metric to reveal that there's a bubble?
I could possibly be interested. I'm on the west side of Bernal Heights. What purpose / use would you have in mind?
If scylla-jmx is used optionally why can you make this package optional ?
And that's all it is?

Because this guy is obviously not a click-farm customer, and Facebook is presumably not paying them to click, either. They're just spam clicking the "boosted" posts Facebook puts in front of them to seem more legitimate?
Well Ashton kutcher has been investing in startups for years now. If that's your metric we should have been in a bubble years ago.
Interview with Cisco's John Chambers
There are 3 ways for people to buy your course:

1) Direct marketing - Udemy drives a ton of traffic to their website, so people just naturally see your course(s) and buy it.

2) Affiliate marketing - Udemy advertises your course(s) via things like Google Adwords. You make a very measly cut on these sales.

3) Personal marketing - You can promote your course through your own channels / reputation. You make like 98% of the sale when people purchase it this way.

Without doing your own marketing, you can easily earn decent side income though.
this is very common on sites like reddit and it's even used by intelligence agencies [1]. Politicians or firms can hire companies to sway public opinion [2], check their clients [3]

[1] https://theintercept.com/2014/02/24/jtrig-manipulation/

[2] http://www.thedailybeast.com/articles/2016/04/21/hillary-pac...

[3] https://modsquad.com/work/
> you had pre-revenue companies with no real working product raising series A, B, C

Color[1]? Theranos? uBeam? Clinkle? Those crazy things are absolutely happening now, but the scale is important to know. (I don't know how the scale compares to the dotcom bubble.)

1. http://mashable.com/2012/10/17/color-shuts-down/
Magic Leap kind of fits into that model, I'm sure there are other better examples.
But perhaps we are too eager to discredit celebrity investors. Anyone can take the time to learn and research and then make investments. Of course, different investors still might invest in different companies, and they don't always pay out. Anecdotally, I would provide Ashton Kutcher's portfolio[0] as evidence for my case, as he has made some successful tech investments.

[0] https://angel.co/aplusk
Show HN: gron, Cron Jobs in Go
Point I was trying to make, there is clear distinction between the bubble and ups & lows.
Take a note out of Atlassian's book and try to take as least funding as possible, and just make great useful enterprise products.
Why don't they just add the dynamic typing when that happens. There could then be a class of Haskell programs that are statically ill-formed, yet actually free of errors.

Maybe adding dynamic typing to a thoroughbred static language could turn out more fruitful than efforts to go the other way.
Moving from C# to F# is much less politically difficult than moving to Haskell. For a start the framework they're on is the same, and actually, you can write object oriented F# that looks almost the same as C# (not that I would advise that, I prefer to use the OO side of F# as a last resort).

I'm the CTO at my place of work, and our primary app is C#. I wanted to tame some of the excesses of the language, and started looking at Haskell - I knocked up a few small projects with it; got it talking to the C# app through RabbitMQ, all happy days. But a few months later I came back to the projects to find they had rotted because of cabal. Some projects I found it next to impossible to recover. That left a pretty sour taste, which was gutting because I loved the language.

Then I took a look at F#. It's not as impressive as Haskell as a language, but it really does sit in that sweet spot for 'fitting in' to a big project environment. I've found that creating satellite projects to our core app in F# has been the perfect way to go. It's moved the team into that mindset slowly without having to force the issue.
Not being able to turn half of your compensation into actual cash that can be spent on things like rent/house down payments/etc is a major downside. It effectively extends the amount of time that the stock is worthless from the employees' perspective.
The video content providers do not pay to be a part of the T-Mobile Bing On program.