skysight-inc/HackerNews huggingface dataset:
> So, was the Cruise acquisition for the talent or the tech?

It has to be the tech or tech + talent. Are there enough people worth $1 billion or more to do only a talent acquisition?
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Neither of these things is money. Money is by definition a purely financial asset, a liability on somebody's balance sheet.

Gold (and bitcoin for that matter) is a real asset, it is nobody's liability.
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They can be if they're serious enough. Planes and trains carry enough people/other stuff to usually warrant the independent investigator to step in. Buses are sort of there. Cars aren't.

You can either have a good team of people drill down into the root causes of a particular mass-transit failure, or you can have them suffer the death of a thousand cuts by investigating every nose-to-tail collision on a highway because people get distracted. One's worth far more to society.
The damage you do is different. Think about the worth of an apartment. It's net worth is calculated: rental revenues during a year multiplicated with 100 and divided by the interest rate of the bond market = $$$$... example: rent $1000/month =$12,000/year multiplicated with 100 = $12 Million divided bey 5 = $2,4 Million --- now remember the gentrification in big city's and it's influence on prices. Sure, if you calculate your apartment worth using daily earnings your, rental revenues fur upper calculation maybe higher than with a monthly or weekly earnings, but the price of the estate...
Right. Gold has lots of practical uses and if it was valued according to them it would be worth at least as much as Bismuth at $25 per kg. But of course gold is $40,000 per kg.
Stunningly too expensive, according to the article they have "nearly million tonnes of radioactive water". That's a billion kilograms. Even at a pretty phenomenal $15,000 per kg to launch into space that would run an impressive $15 trillion.
Having also lived in NYC, that is true if you're OK with the health effects of eating $1 slices every day. Otherwise, I'm not sure how that math could work out.
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My username is a reference to Project Wildfire from "The Andromeda Strain". In the novel, Andromeda mutates into something that can consume rubber -- the same materials used throughout the world as seals against contagion.

So, yeah, if life imitates art it could get pretty interesting.
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An early place where the OP dropped
the ball:

> and some good experience manipulating continuous functions and their derivatives.

Nope. If a function is differentiable, then it
is continuous, but continuity is not
sufficient for differentiability. So,
we can't talk in general about the
derivatives of continuous functions.

E.g., each sample path of Brownian
motion is almost surely differentiable
nowhere.

Just f(x) = |x| is continuous but not differentiable
at x = 0.

Maybe the OP advice is okay in England, but
here in the US I would advise people
wanting to learn to f'get about the OP
and get better advice.

For job opportunities in quantitative
trading, I tried that on Wall Street
here in NY, and got nowhere.
I came with a Ph.D. from a world-class
US research university with my
dissertation research on stochastic
optimal control, which should have
put my resume near the top of
any stack. My favorite prof was
a star student of E. Cinlar at
Princeton and, thus, about the
best there is for mathematical
finance. I came with a long,
solid background in software,
peer-reviewed publications in
mathematical statistics, optimization,
and artificial intelligence.

I had a good background in
second order stationary stochastic
processes, power spectral estimation,
and the fast Fourier transform --
no interest.

Got nowhere. That was before I
heard about James Simons.

One interview was by a guy who
recruited for Goldman Sachs, and
he didn't have a clue about
my background.

Another interview was at Morgan
Stanley: The interview was in
their computer group, but
I indicated that I'd like to
get into quantitative trading --
they acted like they had never
heard of any such thing.

I got the impression that only
a very tiny fraction of the people
on Wall Street had good backgrounds
in measure theory and stochastic
processes based on measure theory,
that my resume never got in front
of any such person, and that
the other people didn't know
measure theory, anything about
Brownian motion, power spectra,
time series analysis, etc.
and were looking to hire people
like themselves.

Candidate Lesson: Study all the
math you want, but don't expect
Wall Street to be interested.
What is meant by "Hard Tech"? Hardware technology, nontrivial problems, or something else?
I think it's because it's so prevalent. If your car had a faulty AC unit, you wouldn't swear off all cars, because most cars don't have that problem. But I feel like we're all still waiting for an Internet of Things Thing to show up that's actually done right. And it's been long enough that if nobody has done it right so far, it seems like a distinct possibility that nobody ever will.
Does anyone really like this kind of scrolljacking pages? Not responding properly on an MBP 2015. The project looks so interesting that I tortured myself by scrolling till the end.

To me it feels similar to invasion of space.
I think you're oversimplifying it. The temperatures are unpredictable, with molten nuclear fuel possibly at 2000 degrees celcius (it might not be there because it's since cooled down, maybe there are temperature probes that can tell you what the current situation is)

There are gases circulating around, free hydrogen gas, volatile gases that could explode if exposed to a spark - so the robot has to be built to not spark or have inert mechanisms for turning, moving, etc.

Parts are submerged, so this robot needs to be water tight to irradiated water and have some mechanism of moving when submerged (buoyancy control).

Radiation is the highest danger to electronics, it's said that all the wires degrade, all the parts of the robot steadily break down when trying to get inside. The chips and control circuitry needs to be radiation hardened, and I bet the "wires" the article refers to means servo control wires - which needs to be linked to servos that are on the limbs - so it's harder to shield. (whereas control chips, the cpu, etc can be shielded by lead plates in a central location)
Everything you said, and also that the old analog devices are future proof.

For a trendy metropolitan hotel, with a design refresh cycle of 10 years at the most, the future might not matter. But people are wanting to put these devices in homes with a refresh cycle that should be more like 30 to 50 years. Big difference.
> A popular criticism of Silicon Valley, usually levied by people not building anything at all themselves

Why can or should criticism only come from [1] people that are building things themselves? What about the press (as only one example) or people who write books? What about people teaching in colleges? What about people leaving comments on HN or any other forum?

Criticism only valid if coming from someone building something themselves? Don't agree with that. [2]

[1] Which to me by the choice of words is what is meant by this statement.

[2] If that is the case companies should never solicit any feedback from their customers about their product or their business model.
I feel like there's a significant difference between a locked-door, and an unsecured cable/port
From a layout perspective I can kind of see it working.

Rides <--> quest areas.
Class trainers <--> Bathrooms.
This is inherently wrong. Auto-generated files should NEVER be in git.

However, they should be in the stable release tarball.
I couldn't agree more. I'm constantly surprised by the number of people that implement it.
Yep, it's a very ambitious project, but the scrolling is utterly broken for me (firefox 43.0 on Debian), and seeing from other comments, I'm not the only one.

Wonder how someone can possibly ship a website where the scrolling is so broken.
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The treated water isn't the problem, it's all of the water that has yet to be treated. Currently they are accumulating more water in tanks then they are treating it, which is a difficult process. Interestingly some of the cutting edge treatment techniques are being pioneered at the Hanford Nuclear site in Washington State, USA. I went on a tour there and talked to one of the scientists working at the ground water cleanup facilities and he said they have sent a lot of scientists over to Japan to help with Fukushima. Though he mentioned off hand that Tepco has not been as cooperative as they would have hoped.
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>And by the way, who's preventing you to teach your children to identify(and thus ignore) the flaws of this system?

What do you mean 'ignore'? If children are forced to go to school, they can hardly 'ignore' that they are being bullied or 'just go away' if a teachers is incompetent.

Most children are perfectly capable of identifying the flaws, they are just impotent and can't do anything about it which causes additional misery.
But what if you leave your door unlocked, or it isn't locked in a secure enough way?

Who is the guilty party?

Really, this is just social/legal understanding. It's unacceptable to open someone's door -- even if unlocked -- but acceptable (?) to wire yourself into someone's network if unguarded.
The most interesting feature (for me) is its small size:

"Compiled code is 8–20 KiB."

zlib is heavier (about 200Ko).

It could be used to make self-extractible asm.js programs or to compress some embedded resources (like files from "--embedd", fonts, images...).
And my axe!
Also, much of the MH370 search area includes some very rugged seafloor. If or when it sank, the wreckage may be located in the underwater equivalent of very mountainous terrain. Just like above water, it's a lot easier to find something in the desert (abyssal plain) than in the mountains.
http://www.independent.co.uk/news/world/asia/missing-flight-...
I always put anti-barnacle paint on my airplanes. Those things are terrible for aerodynamic flow and seriously increase drag. ;-)
^this
> Sadly, they're doomed and I cannot find a friend who left years ago and never looked back.
￼
Is your double negative the right way round there? That means your British emigrant friends are looking to [move back to?] the UK.

I'm British, and recently left. I've met about 6-7 British people in my new country (I haven't been seeking them) and none have any intention of returning. Of course, they visit family and so on, but at present there's no reason not to.
It is very easy to get most mathematics textbooks online, through slightly unsavoury means. It is far more difficult to figure out which textbooks are worth reading---this is a process that requires trial and error, and browsing through recommendations (math.stackexchange and mathoverflow.net have many good textbook recommendation questions, with many excellent answers).

Also, it is very easy to audit courses at universities! Get out there, ask the professor if you can audit the courses (make friends with them too!), and enjoy yourself a stress-free, and money-free, quality education.
No, the article says the money was wired to the casinos.
People also used to use wooden boats.
Is there a list somewhere of these kind of companies?
Hard Tech means nontrivial problems in all varieties, but Altman is particularly "excited about AI (both general AI and narrow AI applied to specific industries, which seems like the most obvious win in all of startups right now), biotech, and energy."

(edit: okay, okay, maybe the article isn't clear.)
> Are there any resources that talk about what is a safe number of satellites for different altitudes and the effects of space pollution?

Lots. It tracks radius squared, if not cubed. As altitude gets large (which you need for orbit anyway), you can fit a ton of small satellites safely.
I'd take the odds on this. The number of people charged with failing to comply with a s. 49 notice is low (much lower than the number issued with them and whom don't comply). The number of people successfully charged is lower still. Some of the cases of successful convictions were also where people had admitted to having the key; your odds probably improve if you don't do this.

My understanding of s49 is that to convict you, the government has to prove that you had the ability to decrypt at _any time in the past_. If they do that, you can make a defence by showing that you _no longer do_. In other words, if the government shows you ever had the ability to decrypt, the burden of proof changes to you to show you no longer do. Pretty ridiculous.

It does mean that if you can make it patently obvious that you can't decrypt something, you have a good defence. One option therefore is to place control of decryption in the hands of not yourself, but a trusted agent outside the UK (or both, with both required to decrypt).

There may also be grounds for appeal in the ECourtHR, as there is precedent that the 'right to a fair trial' in the EConventionHR includes the right to remain silent, etc.
>> A popular criticism of Silicon Valley, usually levied by people not building anything at all themselves

> Why can or should criticism only come from [1] people that are building things themselves? What about the press (as only one example) or people who write books? What about people teaching in colleges? What about people leaving comments on HN or any other forum?

Another interpretation is that while criticism can come from any source, those who are not building things themselves necessarily have a different perspective than those who do, and therefore their arguments should be heard in that context.
Hey, we will publish English article early next week, but you can just scroll down to the usage graphs. Thanks!
There's a company in my e.f. cohort who do most of their work on a box with 48GB of video memory. Another regularly spins up clusters to do machine learning on large video datasets to identify theft.

Most accelerators have partners that can get this stuff for cheap or free - including physical boxes.
> There is one other very precious thing and that is diamond, basically the same except not divisible

Diamons are a bit more complicated than that, owing to the monopolies on mining/cutting/selling (which likely artificially inflates prices) and general inability to re-sell diamonds near the cost at which they were purchased (which also keeps prices high).

https://en.wikipedia.org/wiki/Diamonds_as_an_investment
You can spin up as many as you want if you delete the cookies. They still only last 20 minutes but there is a lot you can do in 20 minutes.
I can't believe people are arguing for more landfill. Its inevitable that its going to happen, but that doesn't mean we should shouldn't try and minimize it. As we know lots of it doesn't end up in landfill.

http://www.theguardian.com/business/2016/jan/19/more-plastic...
I did. It wasn't easy and I had the support of a large team of people to fall back on.

10 years ago I was an early employee of a risk analytics firm. I got pushed into a quant roll because I had an engineering background and could solve PDE's.

My first meeting I remember the head of the quant team hand-waved over a bunch of math that took me two weeks to go through on my own.

I had to spend 2-3 nights a week for 1 year going over my old statistics texts, Differential equations text and Knuth's Concrete Mathematics before I moved onto Stochastic Calculus.

It would have been almost impossible without having a team of people who were willing to help me get through sticking points. That was 8-10 years ago. I still spend atleast 1 night a week learning new math, though now its mostly non-linear regression and chaos theory.

And to be honest I still get alot of quants looking down on me, "A guy who dropped out of his masters, trying to claim he's our equal?". That does bother me a bit, and it means I probably couldn't get a quant job at Goldman, but I'm very proud of where I am now and how I got there!

TL/DR
It can be done, but it gets done over the course of years, not months or weeks. You won't get there without applying what you learned to real world applications, reading the text's aren't enough.
Very ambitious. Will be interesting to see how it pans out.

Interestingly, Google acquired Terra Bella in 2014. Even though the domain says google.com, is this an Alphabet subsidiary or part of Google itself?
For our app the killer was storage costs.

Of course our app is probably different from your app. For us we are doing real-time network testing and diagnostics of a bunch of distributed networks and dumping the data into a series of tables for analysis and diagnostic use. We can also use that data to improve our software in the long term.

A lot of data is generated, but if we lose a little bit it won't kill us. The analytics we want to do right now are fairly consistent in terms of load.

For this work load the cheapest option by far is to buy a RAID array and warehouse it locally. It can also be backed up very cheaply in Glacier so that if we do lose some we can get it back if we want it.

But of course like I said our app is probably not like yours. My point was that you have to do the analysis for your exact specific problem to decide what approach -- cloud or not -- is the best fit.
An odd analysis, given most hotel rooms don't have kitchens. Or space for more than 2 people.

I recently booked a trip to Florence, Italy. While hotel rooms and single-room apartments were on par price-wise, Airbnb offered larger apartments, many with nice balconies and view, that were not available in the hotels. And the apartments were generally less expensive than hotel suites (with kitchen).
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Interesting.

It reminds me encode.ru :)

Do you know the size of the compiled code?
Depends on how targeted the attack is. A hacker who is bored and is searching Shodan for what entertainment the IoT is offering might find GPS quite useful.
Let me cite one thing:

https://github.com/ssloy/tinyrenderer/wiki/Lesson-6:-Shaders...

"Recall that all my source code here is meant to be compared with yours. Do not use my code, write your own. I am a bad programmer."

If you want to improve the text, the wiki is open. If you want to improve the source code, fork -> code -> pull request
> “Without Apple’s assistance, the government cannot carry out the search of Farook’s iPhone authorized by the search warrant. Apple has ensured that its assistance is necessary by requiring its electronic signature to run any program on the iPhone. Even if the Court ordered Apple to provide the government with Apple’s cryptographic keys and source code, Apple itself has implied that the government could not disable the requisite features because it ‘would have insufficient knowledge of Apple’s software and design protocols to be effective’,” the motion says.

http://www.nytimes.com/2016/03/02/technology/apple-and-fbi-f...

> “There was a mistake made in the 24 hours after the attack,” James B. Comey Jr., the director of the F.B.I., told lawmakers at a hearing on the government’s attempt to force Apple to help “unlock” the iPhone.

> F.B.I. personnel apparently believed that by resetting the iCloud password, they could get access to information stored on the iPhone. Instead, the change had the opposite effect — locking them out and eliminating other means of getting in.

> The iPhone used by Syed Rizwan Farook, one of the assailants in the Dec. 2 attack in which 14 people were killed, is at the center of a fierce legal and political fight over the balance between national security and consumer privacy. Many lawmakers at Tuesday’s hearing of the House Judiciary Committee seemed torn over where to draw the line.

http://www.latimes.com/local/lanow/la-me-ln-fbi--terror-susp...

> Had there been no reset on the iCloud password, investigators may have been able to get a more updated backup of Farook's iPhone without any need to unlock the device itself.

They simply aren't competent and every time someone suggests they need more power to cover for their incompetence they need to be called out on it.
Maybe embedded network is the new javascript ecosystem: rediscovering novel ideas (like authentication!) that were invented 50 years ago.

/deploying CAN bus without security
It's not slowing down at all for Startups. That's just the media.

Only you can decide if it's worth it to move. I'm an American that has lived abroad twice. Weigh the decision. I'm am extremely happy that I had those opportunities.

I would guess that you would not risk losing much or that you would be able to get a job back in Ireland if things didn't work out, but I'm not real informed as to the Irish tech market.

I would say make the move, but I'm not you :)
Not sure, but biggest one so far is probably Deepmind, from the UK.

Magic Pony (machine learning for reverse-compressing video data, re-adding data that was removed during the compression process) is pretty cool.
You missed the point completely. Indeed you need to reverse the order of your underlying axiom, completely. That gold has value because it serves as money is obvious. The real question, which the author does a very good job at least at beginning to broach, is why did it, and not some other material or scarce human creation, become money in the first place.
I will defer to you re: Modbus/TCP as it is outside my area of expertise. Even if these systems are "common," I would still claim that they are not the "norm" for the simple reason that I have been in buildings that were clearly "smart" buildings and ones that were clearly not, and the latter outnumber the former. However, even if it were the norm for commercial buildings, I was thinking far more generally and that may be the source of our disagreement. Automatic doors, for example, are the norm for major retail stores (as well as airports, et cetera), but they just don't exist in private homes. It would be expensive and serve no purpose, and that is how I feel about most "Internet of Things" devices [EDIT: and most "home automation" devices].
I'm curious why people care about articles with referral links. It's not like you're paying more if you end up buying something, is it?
Thank you for pointing out my mistake! Indeed, that was a slip of mine to write about continuous functions, assuming they had derivatives.
Lasers, satellites, really accurate rifles, decade-long life extensions, industrial meat production without a nervous system, advanced optics, cheaper / better sensors, swarm AI.

In contrast Facebook is largely just a couple of web forms and some Big O problems at scale.
Exactly. I've worked on autonomous vehicles by myself to the point of acquiring a vehicle for development. But the vehicle's conditions were less than ideal and it became too expensive to repair. I am using parts from it to mock up some prototypes. Acquiring a reliable vehicle for development is too expensive. Mind you, I'm an individual working on this as a hobby project. A startup will have a harder time due to overhead costs.

If anyone wants to talk autonomous vehicles feel free to email me. I enjoy it. :)
I catch your drift, but I don't think it's necessarily true for all "hard tech" problems.
For example, putting together a proof of concept or even an MVP for a robotics product (maybe not drivable cars) is totally feasible, but taking that kind of product to market absolutely does require a huge amount of capital. The latter part of that equation is where something like YC is going to provide an immense amount of value.
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granted, but gold can be used as an ornament and money at the same time. use as an ornament does not detract from its use as money.
You just need to look at Therac-25 for a device which lacked hardware interlocks/cut-offs, had flawed/buggy software interlocks, and still received certification.
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because of those five properties of gold.