skysight-inc/HackerNews huggingface dataset:
I actually think the math really works out well for semis given you can burn through your battery lifespan super quick. Let's say you take two 15 minute breaks + 30 minute lunch per day. That is 1 hour of charge time. Assuming you start from full battery and a 2% per minute supercharge rate (~what wikipedia has for the model s) that gives you an extra 120% battery.

1.9kwh per mile and driving 600 miles per day and you can get away with a 400kwh battery. Less actually but my understanding is you want to not charge to 100% for maximum lifespan. Not sure the optimal cost trade offs...

7 cents per kilowatt hour * 1.9 * 600 = ~$80 a day vs
$2.7 a gallon * 600/6(mpg) = $270 a day

$150/kwh for battery with 2000 full cycles is $85 dollars a day without interest(only ~2 year lifespan so w/e and presumably has some residual value also not taken into account)

Seems to work out to about $100 a day in savings?? I feel like I must be off on numbers somewhere. Data on number of cycles doesn't seem to be particularly consistent.
That's a feature, not a bug. High cost is an efficient barrier to growth that exceeds the carrying capacity of the region.

California is suburban. Changing that will take decades. Cramming more people in to the Bay Area will not result in transit solutions springing up...these will take decades.

Don't forget that the State continues to have long term systemic issues providing water to current residents.

California is at 40 million now and I have no desire to see it reach 50 million. The Governor needs to start thinking about how many people we want here.
You can get excited then, because you can be sure this will be used to supplement vs supplant any existing US security theater.

We couldn't lay off the nearly 250,000 active employees of the Security Theater arm of the US Government just because we had an actionable technological solution that reliably worked. We have votes to think about!
Amd29000. Moto88000. And DEC alpha. But this is long due for India.

Recall that the US semiconductor industry did have plenty of govt help at its inception. The Indian govt can similarly provide early support by being a customer. But still, it is going to be a tough row to hoe.
Honestly not very exciting, and possible region specific to my neck of the woods (South Australia): Office 365 and Azure.

Every non-tech company, and even some tech companies seem to be moving whatever they can into Office 365 and Azure. Some are just moving Exchange, others are moving Sharepoint, and some are just using Azure as an alternative to running a VM farm on-prem (bit boring really). But MS is marketing this HARD here and everyone seems to be buying the message.

Plenty of lower-tier 'Infrastructure Admin' type roles going all over the place, most MSP's are looking for architecture and engineering types as well in fairly high numbers (I count about 20-30 such roles on Linkedin). A lot of Dev roles also seem to be angling towards "Experience with Data Lake/App Service/Some other Azure-ey thing is preferred".
> why we there is a gap between getting a prototype/design done and the actual implementation?

I think this has rather psychological reasons. There is a good book from Seth Godin called 'The Dip' which deals with the problem why most are fast in prototyping but not able to transform a prototype to an actual implementation ('to stick to the end'). However, I think there is nothing wrong with a prototype to fully-implement rate of 100 to 1. Prototyping is how people learn as well.

Moreover, I am not saying that GUIs are per se bad. If I create vector-based graphics I need a GUI, when I browse the web I prefer HTML/CSS and a GUI's smooth scrolling over a text-based Lynx. Some programming languages like Java are better with GUI-IDEs but my main point was another one: That too much GUI in your daily life creates an unnecessary intimidation towards programming (if you are not a programmer yet).
This is why text articles are superior to videos - or at least an accompanying transcript. Text is very hard to mess up.
I took GRE without prep as a non-native speaker. Lets just say I severely underestimated it, and went on to do other things in life … the concept of these tests are quite foreign in Northern Europe, so I was not expecting it /at all/. If I wanted to ace it, it would've probably taken me weeks to prep properly (especially all the silly math things, that I mostly forgot about how to do fast enough without mistakes or stressing out). Never ended up submitting my application, even though I had several first author papers as an undergrad, I felt too defeated by it.
I agree. I created /r/bitcointech (https://www.reddit.com/r/bitcointech) a few years ago but never got it off the ground. If anyone wants to help me contribute and moderate it I could give it another try.
City and Town Councils in the Bay Area decline projects based on views and other issues all the time. They just label these as "aesthetic concerns" and tell the architect to try again. Ask any builder.
Makes sense, seat space isn't really something you consider when shopping for plane tickets. Airlines have nothing to gain by making bigger seats, so the natural progression down this road is smaller and smaller seats -- already, some seats for budget airlines are half-standing [1].

[1]: https://thepointsguy.com/2017/06/standing-seats-on-vivacolom...
And with the new thinner seat types discussed in the article, the passenger in front feels your knees much more than they used to. I'm 6'3" and while I've never been in trouble I have gotten a lot of dirty looks from the people in front of me.

Airlines need to start reserving the aisle or bulkhead seats for taller passengers or something, this isn't sustainable otherwise.
TensorFlow, Linear Algebra, Calculus and Probability are in high demand right now. They’re the building blocks for Machine Learning.
The idea is not that everyone would implement the entire functionality of every library they would otherwise use. With big libraries, each user may need 5% of the functionality. But not the same 5%. If the options were paying thousands of dollars or implementing your own, in many cases the latter would make sense. Definitely not in all cases, I admit.

The way I think about it is what if the only database solution was Oracle. I'm sure many would have wrote their own limited buggy DBMS or used flat files instead. It will certainly be more expensive to write your own Oracle RDBMS from scratch instead of paying for the licence. But you don't need most of the features and for the ones you need, the price point does not make sense for all projects. For some projects, flat files or JSON files saved somewhere on the disk wouldn't sound so bad.
+1 for using the archaic phrase "tough row to hoe", and for using it correctly. :-) In the few times I've heard someone say it, they say "road to hoe" which doesn't really make sense.
> I always look for the “done for the first time, learnt about X” than the “look, I have done the common Space thing at 1/10th of the cost”

Water on the Moon
Depends on the branch, the D seems ok to me. It’s the only one that doesn’t share the road with cars, which is I think a large part of the problem with B and C. (Aside from the B having a stop every block).
It already is, isn't it? I didn't have to talk to anybody as I went through immigration a couple of months ago, I just scanned my passport, and looked at the camera, and they let me in. Same story for New Zealand.

Or do you mean you wouldn't even have to scan your passport?
You're right, of course. I really shouldn't do math in my head after midnight.
Propaganda has the same nature all over the world:
Let the people believe what they were allowed to believe

So I often just say I dont know, if I was asked to comment on anything. Because I really did not know much to form a valid point.

I advise you to do the same.
I don't think any blackmail would be effective at this point. When a man gets accused of molesting a teenager then gets elected to the Senate, I think the potential for blackmail has passed.
My most recent flight was on a United 737-900 with 38 or 39 rows. The seat pitch can't have been more than 30 inches, and might have been 29. It was as cramped as I have ever seen on a 737. But the thing that really pissed me off was the incredibly cramped bathroom.

This link (https://services.airbus.com/upgrade/cabin/layout-optimisatio...) is actually an Airbus design, but it is almost exactly what I remember on this 737. Not only was it cock-eyed (I don't know what to call it), it was incredibly narrow, even for a 737 bathroom.
What you want are frankly the typical goals of those derided as NIMBYs. They tend to want amenities balanced with housing.
Wow, that's like something out of the onion.

Someone should create a travel site like Kayak with a lot more details about the airline you're flying - how often they are late, CSAT score (can be bogus, I know), seating room, etc.

The old adage is that you can't manage what you don't measure, I'd love to see this stuff quantified every time I search so that I can manage my travel/money better.
You are screwed if you are aged 40 in the Silicon Valley
Of course any new venture has high probability of failure.

However,
But India barely has the kind of interests, state-apparatus or companies that'd want something like this to succeed. They have Flipkart, which is barely an Alibaba...

Flipkart last week announced a Designed and engineered in India Smartphone [1].

And this was done by a homegrown company smartron.com. Their website shows how heavily invested they are in IoT (apart from mobile phones). This company was founded by a Mahesh Lingareddy, who it seems was a co-founder for a company which was acquired by Intel for $250 million.[2] - so he has all the resources (or credibility to raise funds) to put in place the execution plan for their vision of "India’s first global brand with focus on innovation, design, engineering, products and platforms." [3]

Or in other words, things are changing - past is not an indication for future failures.

[1] www.flipkart.com/billion-smartphone-launch-store

[2] https://www.msn.com/en-us/finance/technologyinvesting/2-acqu...

[3] http://www.smartron.com/about.html

More about Smartron: www.thehindubusinessline.com/info-tech/smartron-plans-rs-1500cr-investment-to-expand-operations/article9622268.ece
Magna has electric trucks as a short-range shuttle between factories. They charge during loading/unloading. So it certainly seems doable, at least for short-range transportation.

https://investinaustria.at/en/news/2017/11/magna.php

I don't know about long-range. But I would be curious where you get the 1.9 kWh/mile and the 600 miles per day figure from?
Just to illustrate how wasteful the TSA is. It has spent over a billion on something called deception detection. A method with no scientific foundation. It is not clear what, if any, good has come out of the program.[1]

I would be interested in the cost-per-life-saved by TSA, and how many orders of magnitude larger than universal healthcare it would be.

1 - www.latimes.com/business/la-fi-aclu-tsa-20170207-story.html
> but where is all the vitriol coming from?

XML is fine if all you want is a human-readable format to define tree data structures such as documents to be used in applications where only strings are used and someone within the use case needs to have the semantics of each node and each attribute spelled out quite clearly and unequivocally in the document structure itself.

For any other case, XML is horrible.

Now, consider that XML is used quite extensively in any other case beyond tree-based DOM data structures that it was designed for.
There are several residential blocks in central Shanghai, just a couple miles from the bond, that are still not fully served by indoor plumbing i.e. most dwellings have mains water but no sewage lines. Waste buckets are dumped by hand in communal septic tanks which is then emptied by regular vacumm truck visits.The neighborhoods are otherwise quite clean so people from the outside will rarely notice. It's more of an interesting anectode but people should know.

Anyway, there is a looming demographic catastrophy that nobody has mentioned: The working age population in China is due to crash in a decade or two thanks to irrational family planning policies of the past and it may already be too late to prevent it. Japan's decline coincided with their own demographic crisis and some even claim that the USSR collapsed because the Soviet society have never fully recovered from the massive population loss iN WWII. I don't see how China could get themselves out of the same fate.
New residents are suffering today that they cant move in. I think that affects them a lot more than poorer traffic.
There are no self driving cars - yet.
The time scale to realization is measured in decades - longer than is currently promised but the tech companies involved wont tell you that....

I agree with all you on all the other points.
I have had amazing dinner parties with zero planning. Maybe it's because of different cuisine. In my case the first zero planning dinner party I went to was a nabe (hotpot) party. On the way to the friends house we all (10 of us) pitched in like $3-$4 each, we stopped at the supermarket, got a few things, go back to the friends house, dumped them in the hotpot. Yes, you need a hotpot but a burner + pot is < $20 in many parts of Asia (and in the USA too if you go to an Asian supermarket)

I've done the other kind too with more planning and a day or 2 of cooking too. Just suggesting that you can also do it without the planning and hours of cooking.
I’d love to see comparison between Rust and Haskell/ML WRT polymorphism. I wonder if “gets right” would appear there and on what side.
Ultimately, I ended up with Digg Reader. Don't remember exactly how many platforms I tried, maybe a half dozen?.

Feedly was one contender, The Old Reader was another.

The primary reason I settled on Digg is that they came out with an iPhone app relatively quickly after they launched. Regrettably, their iPhone app has been broken for maybe 6 months now. Digg used an OAuth web-view embedded user agent. Google appears to no longer to support such requests from apps. Digg needs to update the app with Google's other authentication libraries.

Might have to find a new platform again. sigh...
I found this product awhile back and was so excited at first.

I have a design background ( but can dabble in css, hack at php and python) but had trouble trying to get some APIs connected and displayed with Bubble.

Please oh please, can one of you developers have Airtable and Webflow make a baby? This combo would be amazing for functional business use and data display and I would pay good money for it.
I've found a good way to actually figure out how many people are coming is to require people to actually write a message to say they're going. If you just hit the "going" button and don't reply saying you're actually coming, I assume you have no intention of showing up.

Also, it's incredibly rude to show up to an event 4 hours late. 30 minutes, I can understand, if you got caught up, but 4 hours is taking the piss.
There might be problems with the laws still. I.e. Polish constitution has 'Public authorities shall not acquire, collect nor make accessible information on citizens other than that which is necessary in a democratic state ruled by law.'.

There are many techs out there that are quite dystopian (face scans, mass surveillance, etc.) or outright evil (alleged organ harvesting of death row inmates in China) but yet the governments aren't doing it. Even that article in Polish constitution smells (to me personally) like it came due to secret police back in communism collecting 'dirt' on people, that required 0 tech, just secret informants with small monetary incentives or who were blackmailed with dirt already collected, telling little bits of 'innocent' things and yet I can't imagine many (if any) countries Western democratic doing that.
This is obvious to the naked eye. The mission is all 3 story buildings, for example. For the rental revenue you would expect everything to be torn down and built into complexes.
How to hack a PC through an iMac
Educational purposes. I would like to send a message in a message box to a PC in my home. How do I make that happen?
The problem is: They cannot save the world if they crash the company into a wall.

I am not saying that they will, and I hope they will not.

But since a few weeks, I do not completely rule out the possibility anymore. Because if only some of their problems, that are being reported right now, are systemic or hard to fix, 2018 might be a bad year for Tesla...
They've had this for a while in immigration at least. Second time I visited (about 2003) I was greeted with a picture of my first visit through immigration there. Shown on a flat panel with a camera on top. Might just've been a tech demo though.
Preference terms explain some, but a minority, of the pricing gap. It’s mostly so existing investors can keep marking their holdings at $70bn [1]. (It also maximises Uber’s cash extraction from Softbank so the latter doesn’t go and hand that money to Uber’s competitors.)

[1] https://www.bloomberg.com/view/articles/2017-09-15/icos-vcs-...
Linux 4.14 Supports AMD's Secure Memory Encryption (SME)
Are you sure? I was made to take off my fish fur ushanka once on an European airport even though it had no metal in it and didn't cover my face, they were just overzealous (and it only happened once out of 3-6 checks in airports I wore it through).

Also - how forcefully? Just asking firmly or taking your things off? And what about religious hats, like the Sikh headwraps?
actually libc gettimeofday is calling __vdso_gettimeofday when available (if compiled with SHARED).

http://code.metager.de/source/xref/gnu/glibc/sysdeps/unix/sy...
No sane board would ever convert common to preferred because a venture-backed Board represents the preferred shareholders. Before an IPO the preferred converts to common, but not the other way.
Good summary!

Bashing chinese is PC in western world, in general.
These guys cheated Death from sales success
I finally gave up and now just pay to sit up front (6’6” here)
This discussion[1] maybe useful in solving the problem. "things()" member function should be qualified with a reference to prevent it from being called from an rvalue object.

[1] https://stackoverflow.com/questions/21861148/what-does-the-s...
I think you'd run into complaints about constantly-hot phones and short battery lives doing that, not to mention end up with untrustworthy transcriptions.
Tantan, China’s top dating app raises $70M for overseas expansion
I'd question this. These things might be trending in mind share. And companies looking to hire people with these skills might have somewhat of a shortage. But I'm not sure they are actually in high demand.

It's easy to forget on HN that 90% of tech jobs are in 'dull' bread and butter languages used in enterprises, and nothing to do with the latest trends.

I think the stack overflow jobs stats linked elsewhere in this thread says it all... Java, JavaScript, Python are the most in demand languages right now. Tensorflow doesn't even show up on their list of popular tools.
> They will have a large bank or some other third party as the underwriter for the deal

Secondaries aren’t underwritten; they’re brokered. Underwriters purchase the shares for their own account and then resell them. In a secondary, the buyer and seller negotiate directly.
Package distchan enables Go channels to be used for distributed computation
If power to network gear was down, then it probably affected vrack connectivity, likely on the entirety of sbg.
SQL has been up there for the last 20 years. I doubt its going away any time soon either.
Without density you can't have these in a walkable neighborhood. It takes X number of customers to support a grocery store (or a bodega, or a restaurant, etc). If you want one nearby, you need more people in a smaller geographic area.

Besides, it is not one or the other. Ground level retail, upper level residential, and you get both.
How does a stock exchange actually work
Tunnels are more important than Uber or self driving cars

“Without tunnels we’ll be in traffic hell forever” -Elon Musk
Traffic lights cost a lot of energy

How would one address this without motorizing the bike? Or is this just a personal issue, since many purists would prefer that aspect as an added benefit, and more strenuous exercise?

Is that bullet point intended to hint at the inclusion of compact electric motors as the new normal? The only other fix would be dedicated ramps and roadways, as far as I can tell.
And yet most of the money I pay the GEZ, sorry, for the Rundfunkbeitrag, goes to exactly ARD/ZDF. I have neither TV nor Radio, but I'd happily pay what I do to the stations you mentioned. But between quiz shows, reality tv, football licenses and badly researched shows like Frontal 21 I hate paying.
I am non-American and pretty much everyone I knew who wanted to study in America prepared for those tests extensively for months. Yes, if you did the same style of problems a lot without lsat being target, then you are practically prepared.

However, just being good in math in general and good in solving hard math exercises wont make it. You would spend a lot of time thinking and trying to figure things out, while if you prepare you will instantly recognize problem and "solve it fast".

The only difference there is that Americans see test being learnable as a bad thing and talk about preparing on it as almost cheating. Here it was common sense, of course all tests are learnable and of course you gotta learn to do well.
I think you’re missing the point: a technology advance without the ability to mass-produce isn’t a real advance. Otherwise we’d all be using VR-enabled memristor computers to sequence tailored anti-cancer meds.
U+1F928 FACE WITH ONE EYEBROW RAISED

(Interpretation of that raised eyebrow: text isn’t hard to mess up. It is nonetheless more accessible in general, I just couldn’t leave the “text is very hard to mess up” unremarked on.)
An app that finds NSFW photos on your phone?
> After the student investigation, the teacher highlights important ideas embedded in a concrete problem, and summarizes and generalizes their findings. In particular, the teacher’s summary makes sense and is meaningful, because students have had the experience of playing around with these ideas on their own before coming together to formalize them as a class.

It's important for students to get their hands on examples and play with the ideas we're trying to present on their own. One issue I have is that this takes so much time. If you're introducing concepts that the students don't have good intuition about, you have to go so slowly. Even then it feels like some students can't follow.

I think it's beneficial when it's possible to get students to engage with the material on a daily basis as reading or homework. Hard to do when they're expected to take 4 classes (college) or 6-8 (high school) and dedicate study time to each of them.
It's really unusual to just launch into deep conversation with someone you barely know.

It's not that unusual for me. This might be part of why people seem to have strong reactions to me, whether positive or negative. I am pretty terrible at small talk.
Governments always gain their power from the governed, and nowhere else. This fact is always resisted by those who know it because it a) makes the people responsible for the actions of their government and b) makes the government responsible for their people.

For as long as we ignore this fact, we'll get corrupt governments. Alas, its also a key reason that governments are corrupt - a government is only as ethical as the people it governs.
Very cool name selection by the way. I hope you stick around hn.
Yes but at least with open source software, you have a fighting chance of knowing what you're running.

What's the open source equivalent of DUAL_EC_DRBG or Kaspersky Anti-Virus?
Batteries on the trailers, charge while loading
https://www.seatguru.com maybe