skysight-inc/HackerNews huggingface dataset:
The article doesn’t mention this but I will guess this is the real time market, or spot market. In off peak hours and especially at such high prices, you are taking about very little actual energy. Most of it would have been purchased in the day ahead market.

This happens all the time in US markets - especially where there is wind.

It is done as a price signal to producers to either ramp down or consumers to buy a bit more. The ideal winner here is pump storage. But they may have already schedule themselves in the day ahead market and have no extra storage.

The market is far more complicated than the article let’s on.
people are voting with their wallets that a city "crumbling under poor infrastructure" etc. is better than whatever place they're migrating from

I don't think that's true, because of imperfect information. A person living in a remote rural location may believe that they can can have a better life in a city, then make the journey at a high price (relative to their own resources) then arrive and find that it's not what they expected and they have no way to get home. I will wager a significant proportion of those impacted by this policy fall into that category.
I'd recommend reading the code[0], it's pretty short, and can help as a good introduction if you want to get a bit more into VanillaJS.

0: https://github.com/roecrew/zam/blob/master/zam.js
> Any self-respecting statistician would know that the mean of a quantity where addition is not well-defined is meaningless.

There goes the Dow Jones average.
Ask HN: VCs, what are your favorite questions you ask entrepreneurs?
Ben Horowitz asked entrepreneurs to give them an example about overcoming adversity because he wanted to know the entrepreneur had grit. Peter Thiel asked about founder salaries because he saw a positive correlation between Low founder salaries and successful outcome.
We've witnessed technology breakthrough in relative lightning quick speed. It's going out of the lab. Hey excited.
You could buy a cheap TP-Link Router with a USB-Port and LEDE/OpenWRT support, add a second wifi interface (usb dongle) and then use your neighbors wifi as WAN connection.

Good usb dongles are:
1. Alfa AWUS036NHA – $28.97
2. TP-LINK TP-WN722N OR TP-WN722NC $15.99

Benefits:
have "your" wifi on a separate channel, you have your own subnet, firewalled (nat) from your neighbor's net.
Deep Neural Network for Detecting Boring or Not Boring Hat
Kind of, yeah. I liked the article and found it interesting, even said as much, but given the title I expected to learn how the name came about and I didn’t. The article doesn’t do what it said on the tin, as it were, interesting as it may have been.
They mean nothing for crypto currencies. Study LMP day ahead and real time markets.
That’s a lot of ad hominem noise to seemingly no signal all. Why?
Or maybe you learned tons and it makes your 10th attempt more likely to succeed?

Ultimately these ponderations are kind of meaningless in the absence of great data to frame them with.
I'm probably biased because I got started programming with a 48K ZX Spectrum when I was around 12, and low-level stuff followed.

But I started getting interested in "hardware" about this time last year. Soldering was a bit fiddly since I'd only rarely done it in the past, but the programming side was pretty simple to handle. I found tutorials which were very beginner, even non-programmer, friendly.

Of course it helps that I've programmed in C for 20+ years, and I can still do assembly-stuff if I must, but I don't think it is unreasonable for a complete beginner to do useful/fun things given enough willpower.

The only downside for me is ordering kit from AliExpress which takes ~1 month to arrive to me. I'm currently waiting on some E-Paper, which I was recently surprised to discover is very affordable..
My thoughts exactly — thanks for writing this.

Helps to explain how there are so many 'anomalous' serial-entrepreneurs :)
Yeah it doesn't make any sense at all.

He grossed over 800k on a video game, loves programming, but after another three years he has to go back to his day job? It sounds like he's burning over 100k/year and lying about his expenses in this report. In any case, there's a lot of information left out.
Yeah it sounds just like how car salesmen try to talk you into buying a car you cannot afford.
A London conference asks if “smart contracts” can be legally enforced?
The other side says that there’s a 75% chance of not failing ten times in a row. What this says is that it probably doesn’t just happen when it’s a sure thing.
Actually, this is how life works: some people never succeed at what they try to do. It does take an infinite number of attempts to assure 100% success.

Relevant in the NYT: https://www.nytimes.com/2017/12/24/opinion/2017-wrong-number...
As you imply, you don’t get infinite attempts because you’ll die at some point. Some people never succeed despite their best efforts, effectively taking them infinite attempts to succeed.
Why single out video games? I'm guessing the WHO is targeting gaming since its more common among children and adolescent, an age group that is not among their ranks. Will we see a seperate additional disorder of Excessive Facebooking in the future.
Does it transmit like a POST request? If so that is cool. I always feel bad using a Pi Zero for one purpose.

I had a project in mind of making a smart poster that was open buttons on a flat piece of paper that you shorted with your finger with an id. You'd bind this button to a server event and it would be powered by ambient rf signals.

Gotta read up on this.
Ok let me update it. Opportunities are always there for enterprising, confident and contrarian thinkers who will take several chances with low downside and try to create new things rather than compete within existing paradigms.

Disclaimer: Not financial advice but personal observations
A Mind for Numbers.
https://www.amazon.ca/Mind-Numbers-Science-Flunked-Algebra/d...

This was a companion book for a very popular MOOC called "Learning How to Learn".

This gives you insights and practical advice on learning and it works for any subject, not just math & science.
If you are single and don't have children you can always leave CA for a few years, cut your expenses in half by living in a low COL area and come back if it doesn't work out.
I've told people to buy at $3,800, $5,900, and $14,000 and got shouted down each time. All of these were after major crashes, so of course the price was about to bounce back.

Even if you know when the music hasn't stopped yet, it's very hard to get anyone to listen.
A Scientist Spilled 2 Drops Organic Mercury. This Is What Happened to Her Brain
Proceedings from the Internet of Agreements conference are now published.

The conference examined all angles of the links between between blockchains, smart contracts, and the law.

Speakers include Ian Grigg, Michael Mainelli, Trent McConaghy, Wong Meng Weng, Scott Nelson, Imogen Heap, Jeremy Silver and Stephen Diehl.

The conference took place in October 2017 and the proceedings were just published today!
At Spotify, we have a reading group. I started one at SoundCloud and at Google there were multiple focused on very specific topics. If you can prove to your company the value in investing in a reading group, you can probably start one in your company too.

KTH, Stockholm's main technical university, has an open reading group too, open to everyone. Probably if you have a big enough university in your area they have something similar.

Alternatively try reddit, ie.: on r/machinelearning.
That said, the value of doing this in real life, in front of a whiteboard, is worth going extra mile and find someone to team up with.
What was lacking in Watson? Lack of features or lack of accuracy? I had integrated Watson in on of the libraries in a platform I was building and found it reasonable. Haven't compared it extensively with other offerings from Microsoft or AWS, so interested in knowing if you have..
fst rst
TXR is a new Lisp dialect (project started in 2009) with real conses, car and cdr. Plus some little embellishments in that area:

This is the TXR Lisp interactive listener of TXR 188.
Quit with :quit or Ctrl-D on empty line. Ctrl-X ? for cheatsheet.
1> (defstruct kar nil
kar kdr
(:method car (me) me.kar)
(:method cdr (me) me.kdr))
#<struct-type kar>
2> (new kar kar 1 kdr 2)
#S(kar kar 1 kdr 2)
3> (car *2)
1
4> (cdr *2)
2

:)

TXR Lisp has the cadr accessors down to depth five (caar to cddddr).

This stuff is not "muck" to be jettisoned; it is part of the essence without which we don't have Lisp.
The amount of possible chained NATs gave me an aneurysm.
Well, it falls afoul of compilers. JIT compilation does it in memory, but a regular compiler breaks the same rules on disk - it writes a file that is executable.

But even if we were writing binaries by hand, the editor that wrote them would still be breaking the same rules. There's no getting around it. The stuff that creates executables has to break those rules.

You just want a very limited set of things that are able to do that. Even in JIT, the JIT portion of the runtime should be able to write executable pages of memory, and the rest should not be able to.

But how do you enforce that? Aye, there's the rub...
I'd like to think there's a middle ground between 'corporate america' and 'at home alone'.

Hitting the jackpot the first time around may have actually led the author away from a place he'd feel most comfortable in - a small company with other people who love what they do.
Not sure that's a terribly uncommon scenario. Maybe a little dramatic, but not uncommon. This whole idea of recommending needs a little bit more context to be valuable.

How about "Your friend has decided to ditch cable and try using a video streaming service. How likely are you to recommend Netflix?"

It's even more critical with services that have very specific use-cases. How about a dermatologist? I don't think many people would say they recommend this type of service without some context. So, "If someone you know develops a similar condition, how likely are you to recommend DermatologyCo?"
Clickbait headlines beginning to dominate Hacker News
Yes, I just did that. Because I think it’s true. I always wanted to be believe we were better than that. Let’s do our best to promote articles where the title matches the content.

If I had one post on here that took traction, I wish it would be this one. Happy hunting.
Stellar is interesting, but I fail to see how, outside of its transaction rate, it is superior to Ethereum. Not being Turing complete is a strange bragging point - but then I’m not sure HNs position on smart contracts. Personally I’d take Turing completeness and a lack of tools today over a limited language for posterity.

There are a handful of different tactics in the works to speed up and scale ethereums transactions (were already at 500x smaller fees than BTC). ETH/Viper (a new language for contracts) and ETH/Casper (a method for increasing the transaction rate) together should leave Stellar in the dust. That said I have tremendous respect for Stripe so... we’ll see!
Wow, thanks for this — I did HS-physics but much of my knowledge has since left me... :)

Would love to dig into the science behind this a bit more — I don't really know where to start — i.e. why you're dividing by four.

So as not to waste your time, is there a named phenomenon that you can link me to to learn more about this?

Thanks again!
Hugh Jackman's role as P.T. Barnum helps erase the showman's violent racism
By airline/train or UKBF staff? There’s a difference as airport staff won’t check visa validity etc or do the entry checks that are the subject of this chain.

UKBF checks passports on departure at the Eurostar. At manchester airport at least, there are no routine outbound passport checks by UKBF
thank you. Gonna look at it
I started collecting blockchain and cryptocurrency links that catch my attention
it can work on whatever. the biggest advantage is that it's not using the SD card and it's always using the latest image.
Semantic discussions (such as debating a definition) tend to make us intellerrrrlectuals argue about things we agree on, as appears to be the case here.

It's helpful to split Philosophy into two over-arching conceptual umbrellas:

- Epistemology - "how do we know what is real/true?"

- Ontology - "what is reality/truth?"

Epistemology is the portion of philosophy that likely rubs you the wrong way: theology is founded on epistemology. That said, so are linguistics & Political Science. In addition, mathematical NOTATION is a subset of linguistics, albeit an especially strict one.

Logic, Algebra, &, not least of all, statistical-modeling are the spawn of ontology. Without the ontological sub-dicipline of metaphysics, there would be no mathematical innovation. Whether you think calculus was discovered or invented, it would never come about if Newton(/that-German-Guy) hadn't been considering metaphysics.

Metaphysics rests on the theory that our epistemological-mathematical-notation provides a linguistic analog sufficient to describe the items & phenomena we have thus-far discovered as a species.
Is the question of what I will think of something when I'm old really the best question? I know that this seems natural but I wonder if it is a bad way to make choices. I don't think my enjoyment when old is more valuable than my enjoyment when young.
After reading this, I have so many questions. First, can someone please explain what is this business about "advisors" all about? I see Naval Ravikant on nearly every other coin followed by some big names. What role do they play?

Second:

> 5 seconds median settlement time on Stellar vs 3.5 min on Ethereum for execution and secure confirmations). It costs 1 cent to make 100,000 transactions on Stellar.

How does this work? If it works something like Ripple that's not exactly a decentralised currency, is it?
Reduce risk but also involve more time and energy.
You can do this with an out of process JIT. Basically the JIT process has the code mapped as read/write and maps it into the runtime process as read/execute. Then you can use OS capabilities to prevent the runtime process from creating its own executable pages (on Windows you can do this by enabling ACG).
Tier II of the Synapse ICO Opens February 5th
Is there any evidence that capping resident count is possible at all? Even for China?
You're giving the people behind this metric A LOT of credit if you think they picked a precise cut off based on historical evidence, rather than "hmm 2 and then another 2 sounds good".
Yes, it absolutely does matter. Chaining promises together, running them in parallel with Promise.all, and the abortable-promise pattern, make developing (and especially debugging!) much much easier than having to deal with callback hell.

zam.fadeIn(el, duration)
.then(zam.ajax(url))
.then(response => response.json())
.then(json => el.innerHTML = json.results[2].message)

This code is nearly self-documenting, is easier for a transpiler to handle, and doesn't scream "refactor me!" right after you've deployed your app.
And for fun, those things are called Rockets in Canada as we do have the chocolate Smarties.
cryptsetup benchmark --cipher aes-xts
# Tests are approximate using memory only (no storage IO).
# Algorithm | Key | Encryption | Decryption
aes-xts 256b 2266.2 MiB/s 2273.8 MiB/s

perf says

21.86% cryptsetup [aesni_intel] [k] _aesni_dec4
19.83% cryptsetup [aesni_intel] [k] _aesni_enc4
17.80% cryptsetup [aesni_intel] [k] aesni_xts_crypt8
13.73% cryptsetup [kernel] [k] copy_user_generic_unrolled
2.20% cryptsetup [kernel] [k] get_page_from_freelist
1.86% cryptsetup [glue_helper] [k] glue_xts_crypt_128bit
1.53% cryptsetup [kernel] [k] put_page
1.36% cryptsetup [kernel] [k] blkcipher_walk_done

so it's using the code from:

https://github.com/torvalds/linux/blob/master/arch/x86/crypt...

I don't know if using AVX would speed it up. openssl is faster (openssl speed -evp aes-256-gcm and aes-256-xts).
Oh boy... I told my dad to buy at $8, $27, $200, $2000, $3000, $6000, and $12000. None of these times has he actually taken any action. :(

If only I turned 18 a couple years earlier...
It was more than the last 30 years. Eliminating the need for professional programmers was the original design goal of COBOL.
Agreed. In a communist society you would look out for the greater comunal interest. For example, family would be expected to let their marry to have more children, without expecting anything directly in return, but for the greater good of the people.
The other thing is it doesn’t seem like he’s generated that much wealth. If you’re taking half a million out of savings, working for a year to maybe double it (at long odds, 10-1 or 1000-1 as the article suggests), isn’t a trip to Vegas a viable alternative?
Of Variance and Functors
I totally agree with you.
I think this guy states it pretty well when it comes to React vs. VanillaJS.

There is no doubt that React.js is a great approach towards managing state in the view layer of a browser application. However, from my own limited experience as well as just comparing raw numbers from time spent in rendering to the amount of memory consumed, there is a clear price to pay in any convenience gained from a library like React. From a pure performance perspective it does appear there may be some merit in evaluating a pure JS DOM approach to a given problem. However, from the perspective of managing a team of developers who want to deliver a large amount of maintainable code, there can be a clear advantage to leveraging libraries and frameworks such as React, Polymer, Angular, etc.

https://objectpartners.com/2015/11/19/comparing-react-js-per...
I disagree with you entirely.

The creator requested an open, live debate to put these claims to rest. They haven't accepted and probably won't.
This discounts the high failure low success rates of entrepreneurship, which is dangerous advice in a country with a broken healthcare system and no social safety net.
Update:

I've contacted Renshaw, shared the additional information, and he agrees that the individual he first suspected is likely not the right person. He has made his Facebook post private.

If I had read that in the beginning and not at the end, there'd have been far less risk of having just wasted my time reading this.

It's all circumstantial. There's insider trading but we don't know whether some random Redditer was involved.
They should have entitled it Machine Learning From Dummies

Example https://news.ycombinator.com/item?id=15182478
Recommendations are also skewed by the needs and interests of the pool of friends a customer has. I'd recommend (and brag about) a good computer keyboard or monitor to almost anybody I know, because 90% of my acquaintances spend a lot of time in front of a computer; I can make an educated guess about the small minorities who might be interested in a certain restaurant (location-constrained) or a board game or a bootleg CD; but I don't think I could "promote" to anybody things like old roleplaying games (I'm the most eager collector I know) or a graphic tablet (the handful interested people I know already have a good one).

And what about the buying potential of one's friends? Consider plants: students could help sell their student friends something inexpensive that fits in a small vase in a small dorm room, farmers could help sell other farmers enormous amounts of product.
For what is worth, I also thought that ~5500 dip in mid november was a good time as well. I wish I had money in the exchange that weekend because it quickly recovered days afterward.

The recent dip was scarier though and time will tell whether we are still on the rise or just a temporary recovery.
It is, but it's also the most accurate way to view your actual costs. You understand it can be both, correct?

In the case of your car, what benefits are there to the more expensive model? My iPhone X, those benefits are easy to describe, better screen, better camera, faster, better form factor. Amortizing to compare the relative cost between it an iPhone 8 and seeing that it's roughly $10 a month allows me to make an informed decision about whether those benefits are worth the cost.

In the case of your car purchase, if the car salesman says it's only $200 a month more to get the "better" car, are it's benefits worth that much to you? Is the more expensive car safer, more comfortable, and are those benefits worth $200 a month? How much do you drive a month? Do you commute in rush hour traffic, or drive on the freeway? etc. etc.
> . . . grammatical errors..

Normally we only put one period at the end of a sentence.
Open Trading Network Leverages Cross-Chain Technology
point was that it does not just work on a pi 3 if you put it in a real-life environment.

also, net booting is still a thing, but not for the diskless scenario :)
It's always interesting and amusing to read these sorts of articles. This has been a recurring dream and topic of conversation since well before I wrote my first program in 1975. It's easy to understand why. We've built these super fast number crunchers and added thick layers of abstraction that let us do useful things like encoding videos and tweeting. These things seem magically elevated above and beyond the simple operations from which they are assembled, and it's tempting to think we can continue piling up abstractions until we get to "intelligence."

I suspect, though, that the fundamental metaphors of human intelligence, whatever they are, far transcend "processing" the way our number crunching machines work now. That's why analogies to the way we interact with others ("Why can't I just tell the machine what I want?") fall woefully short of providing any insight into how we might program computers in the future. As long as the computers we are programming are processors of the same sort we program now, they will remain far, far too simple to ever understand what we want and act on our desires. To the extent they get part of the way to that ideal it can only be by relying on deeper and deeper layers of software, which at some point has to be written in the old-fashioned way. If that remains true then it would probably be dangerous to allow ourselves to get too far removed from the way things really work. We already know how painful it can be to end up relying on stuff nobody understands any more to provide critical functions.
> I don't know many tech savvy people with iphones of any kind anymore.

To present alternate anecdata, nearly every tech savvy person I know uses an iPhone, especially those who understand the privacy differences between the Apple and Google ecosystems.
4% withdrawal rate is a conservative figure often used to live “forever” from a portfolio (use 3% if you want to be more conservative, 5-6% for more risk friendly).

To get $30k a year, that’s a starting portfolio of $750k. [0]

If you’re making $140k a year and living frugally, you can amass $750k in less than 10 years, perhaps even 5-7 if you are really frugal + lucky with the market.

It’s within reach of most software engineers, to be honest - but of course many people prefer the regular ski trips, new Tesla every few years, and so on. But if your dream is to work on your own stuff free of bosses/corporate politics/etc, it might be worth doing.

$30k a year won’t be much of a living in the Bay Area or New York, but for a single dependent person it’s quite alright; and in many mid sized European cities with socialized healthcare/university/etc, it’ll even let you raise a kid or two without having to sacrifice much.

[0]: http://www.firecalc.com/ gives us an 80% chance of success for a $750k portfolio on $30k withdrawal a year over 50 years.

If you’re new to this and want to delve further, check out https://www.reddit.com/r/financialindependence/
Your potential true friends will. Also, it’s not just about your true friends anyways, is it? There’s more to why we like social media than just that (although granted you qualified your statement). Anyways I don’t want to make it harder for you to quit but I don’t think misleading yourself (intentionally or not) and others is the right way to do it.