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In the last 4-5 years I owned exactly 3 phones: iPhone 3gs, Moto G 1st gen and a Moto G 2nd gen. All phones are in perfect working order with intact screens altough I don't use any cases.

I only upgraded each time because I needed a faster phone, not because it was broken. Currently I am thinking about upgrading again, but unfortunately there is no good phone on the market for me at the moment.
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Actually, I think it should be 3/8, since it's supposed to be the opposing player's win count.

These diagrams were supposed to just be an update of the diagrams from the MCTS Wikipedia article, adding the correct backpropagation values, but I see there are more problems than that.
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What does "police state" have to do with this article? Among other things, some of the feminist progressives in the article want the school to "provide lawyers for students who couldn’t afford them", and to have independent appeals body 'with no stake in defending the initial result.'

How are these the markings of a police state, even metaphorically?
Absolutely will not in China, LOL
sounds a lot like gaussian kd-trees

http://graphics.stanford.edu/papers/gkdtrees/gkdtrees.pdf

Instead of doing a brute force nearest neighbor search, samples are propagated through a tree.

This technique is exotic, but not new.
There are several state and federal laws that can be used to criminally prosecute NDA violations, mainly the National Stolen Property Act and the Economic Espionage Act.
> What about your friend's evil sysadmin who replaces the public key that you sent with another one, thereby enabling MITM?

You could also send with it detached key signatures from mutually trusted friends. This would add weight to your claim that this key belongs to you. Then, your recipient can check that your message's contents (including your pubkey) are signed by a key that your receiver can adequately measure authenticity. Does that seem right?

If a hostile MITM modifies your message and/or your key and signature, then these friend's signatures won't match. If they change these signatures as well, then those won't match the receiver's already trusted keys.

[Aside: One other way I have played with was to rate another signed message by a friend (who sent me his pubkey as an email attachment) with a likelihood that he wrote it, and then I checked if that message's signature matched. As a qualitative heuristic test, it did increase my confidence in that key significantly, though I would have liked to have some trusted 3rd parties witness his possession of it.]
He didn’t: I was talking about Prop 13, which is not about land value taxes, but was sold to voters using an equivalent scenario as a rhetorical frame.

However, the same is generally true for land value taxes. The people who stand to lose most from land value taxes are large land owners who for whatever reason are sitting on unimproved or under-improved property.

Often, property just sits because the owner expects the value to continue rising, and wants to make sure to flip the property for as high a price as possible. There’s no pressure to immediately do anything useful with the property, so in extreme cases you end up with 50% parking lots. This image of Denver in the 70s would never occur with a proper land value tax: http://1p40p3gwj70rhpc423s8rzjaz.wpengine.netdna-cdn.com/wp-... A hard core libertarian might argue that all those property owners should have the right to build parking lots if they want to, and it’s nobody else’s business. In my opinion though, a city where blanketing downtown in parking lots is the rational behavior has a pathologically broken city planning / tax system.

Yeah, it’s too bad that under a land value tax some individual homeowners who really like the tiny house they bought 40 years ago for $50,000 now need to sell it for $1,000,000 because they can’t afford the tax anymore. But these folks are actually pretty rare, and they just received a giant cash windfall, so they probably won’t get too much sympathy. If they really want to stay, they can surely take out a loan against the property, as evgen suggested.

There are plenty of other folks in our society who get screwed much worse, and are more worthy of public attention and concern.
Used iPhones get handed to relatives or sold. I know people using 3rd- or 4th-hand iPhone 4 units, and these came out ~5 years ago. I live in China. Here, a broken iPhone 4 or later will be repaired, not scrapped.
Ask HN: Understanding of networks is necessary for Web Developer?
Hi HN,

I'm a happy Web developer, who is good at front end technologies. I also know how a public private key works to make a secure connection on HTTPS.Fundas of OSI layer of networks.

Is understanding networks ( in depth each and every bit of protocol) is necessarily for a great web developer?

If not all networking concepts, what all network concepts do HN thinks its mandate for an Web Dev guy?

Thanks.
We are going down that road here in the UK - http://www.independent.co.uk/news/uk/crime/crippling-court-c...
No, convenience isn't - but letting it trump utility really is.
The other side of that coin is convicted rapists serving 2-3 years in prison ala Sweden.
Is it signed by trusted key. No? Discard. Spam problem is solved. Bonus no cold calling.

You could use something like zrtp once for fingerprint verificatiin.
It seems pretty useful that despite being a decade-old installation and being linked to from HN, it is responding near-instantaneously.

Likewise, the suckless tools are useful in that they just work. That's pretty useful too.
iPhones are expensive in China, mainly due to taxes. Many people buy iOS devices for themselves and for friends when they visit Hong Kong or the USA. HK is better, as there is no sales tax.
Not just used ones.
Agreed - that's why I think it's so important to live/travel in solitude occasionally, so that you can learn to live with yourself.

You might like this piece about hiking the Pacific Crest Trail - it expresses a lot of the same themes:

http://priceonomics.com/hiking-the-2650-mile-pacific-crest-t...
I have the same annoying problem,and this seems to be my living pattern
>The current thinking is that cancers are not evolving for resistance during treatment, but that there are a sub-population of cells present in the tumour mass that are being selected for by treatment (i.e. we kill 99% of the tumour that is sensitive and the 1% that is resistant grows back).

No, the cancer evolves resistance during treatment. Evolution is change in allele frequency in a population over time, not the emergence of new mutation. It does not matter whether the mutation was a rare, preexisting mutation or it occurred after treatment; both likely happen. The "evolution" part is the outgrowth as a result of a fitness differential produced by the new environment (therapy).

>We know how to solve this problem from HIV. HIV evolves resistance to drugs faster than any cancer yet we can treat patients for years by using HAART (i.e. give lots of drugs at once that target different key components). We need to do this with cancer, but this will require developing new drugs that are less lethal since you can't just give a patient a dozen standard anti-cancer drugs and expect them to live.

We will never be able to do this with cancer. HIV has only nine proteins in its genome. This means any resistance mutation it develops must be on-target and will tend to operate through specific bottleneck points. This is not true with cancer - there is on-target resistance, of course, but this is easily overcome through better drug design. We can develop drugs that get around EGFR T790M, but in a cancer there are a dozen different new mutations in other genes that can emerge to produce resistance. Drugging all of these targets in advance is impossible - we can barely drug one gene with patients tolerating it. We'll lose this game of whack-a-mole.

This is a losing game in general. The tumor has too much space to adapt - it's not limited to a tiny genomic space like HIV, it has the whole human genome to work with.

This is why I think successful strategies are going to result from not inhibiting particular genes but treating the tumor as a tissue and modulating the host/tumor interactions. Immunotherapy acts on this axis, and it's already looking more promising in this regard (responders don't tend to become resistant).
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That's correct the USSG pretty much makes plea agreements non-viable because it doesn't allow the prosecutor to offer any substantial leniency on sentencing, mandatory minimums on pretty much every federal crime also make plea agreements pointless.

On the local level plea agreements are used to make prosecuting people cheaper, if you don't agree to it they'll pretty much fuck you up intentionally just to prove a point which is probably even worse than not having the ability to offer them in the first place.
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Don't buy Blackboard? Without knowing a little more about what you really want to do, I couldn't recommend anything else.

Educational software (admin or teacher-facing especially) tends to be garbage
My aimful life: Breaking UEFI security with software DMA attacks
It seems that the website is blocked (by GFW). It makes no sense.
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Lately it seems like I've run into a lot people interested in the so-called materials genome:

https://www.whitehouse.gov/mgi
Quite a number of people in the world, including those in positions of authority, are shockingly incompetent at a very basic level.
Not easier to reason about?

I would argue the opposite — it is immediately easier to reason about, since I see what functions are called, and I can go look up the documentations for those functions without having to go through a precompile-step.
> You could even run for you local city council and become part of the decision making process for the government, being an active participant in it.

This is the only way to ensure your goals or objectives are realized; constant vigilance.
His software creates new top-level directories off root and this simply hasn't found wide acceptance among sysadmins. I've never seen eg daemontools used in the wild for this reason.
> All of this seems like overkill

Did they really burst into his home, armed -- arms drawn? -- and handcuff him in front of his children? Was that necessary?

I don't know enough about the case to speak to the charges themselves -- and I'm confident that, regardless of Xi's individual circumstances, there is plenty of espionage going on [1] -- but I have to wonder at yet another incident that appears to insist upon storm trooper tactics -- followed I presume by a publicity motivated perp walk.

[1] And why don't we pursue further all the production agreements where the Chinese use their economic leverage (politically prescribed and enabled cheaper production costs) to coerce domestic production as a condition of participation in their domestic sector and trade, whereupon they examine and copy the relevant technology, including supposedly restricted high technology components, wholesale.

Who's knocking on the door of e.g. the CEO of Hughes?

Who's publicly displaying those who've grossly mismanaged compromised high value information systems?

Each case like this just further disillusions me with respect to what increasingly appears to be primarily the Federal government's ongoing dog and pony show of law enforcement.

Back to the SWAT teams and perp walks. I no longer see quiet competence on display. Rather, more and more political grandstanding.
I was hellbanned for a while and didn't know it until someone told me.

I emailed the mods and they told me they never banned me and that it must've been a technical glitch.
Sweden is just one example. In Germany you get a criminal sentence and potentially preventive detention, which means you get to stay in prison until you no longer pose any danger to society. Given that nobody wants to be responsible for releasing such a prisoner only to have him commit a crime later on, people tend to stay quite a while in preventive detention.

Makes much more sense than labelling people as sex offenders in my opinion.
netcode is the most difficult part of fast multiplier games.
then again one could just read quake3 source - its actually, 16 years later, still one of the best for that.
> but then you have to explain why the mass is in a shell, rather than collapsing in on itself.

That is an easy one. It is the only "stable" configuration given two pieces of information:

1) The force of (and therefor effects of) gravity of a sphere is maximum on the surface and tapers to zero at the center.

2) Time (and therefor motion) all but stops at when the force of gravity reaches black-hole proportions.

So the center becomes an unstable region of low density and rapid time/motion, and the surface becomes a stable region of treacle-time. A hollow sphere would be the result.

That said it is almost certainly wrong because it is sufficiently simple that every pop-culture astrophysicist would have written about it, and none have.
I have JavaScript off. I can read the article just fine.
Took me a while to notice that it's not written by djb himself.
Obligatory: https://xkcd.com/592/
You might be depressed. At least, that was the case with me when I started sleeping all the time and lost interest in programming. I finally got the courage to explain it to a doctor, was prescribed some meds, and a couple months later was back to normal.
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Only if doing web development involving the Internet, which is, well, a network.
I'm curious why they needed to use additive manufacturing instead of machining and joining the parts.
I'm still using my 4S from 2011, and I've been using the hell out of it literally every day over that timespan, and have never owned a phone case.

How do yours break?
> use of a feature or function without understanding why and how it works can lead to really interesting performance problems, even if the code is functionally correct

Which you shouldn't worry about until a profile shows it's an issue. Otherwise, having a basic understanding of data structure usage is the actual critical bit
Why is the government acting on what is a contractual matter between Xi and "US company"?
By far the most exciting news here, to me, is PEP 484 typing module. Typing support would eliminate one of pythons biggest weaknesses. Furthermore, having it optional means it can remain as easy play and prototype with while becoming "more professional."

The other features are all well rounded, with co-routines having quite some potential, though I'd have to play around with them first to assess.

Now if everything would please start moving on to Python 3 pretty please ;).
Then it's those laws that can be enforced. NDAs themselves are not laws, they're contracts. You can sue, but you can't arrest.
Working just fine for me.
I like the thought of coroutines, but it's definitely been especially slow for the ecosystem to adapt to asyncio so far. (And for good reason. It has new syntax that doesn't play well with non-asyncio). Adding even more syntax for the same things may slow down adoption more? Admittedly, it's much better syntax.

The optional typing is a tricky subject. I'll have to wait until there are tools actually using it to see. One of my biggest hesitances with it is that until runtime checking or really good static analysis exists, annotating things incorrectly can be too easy. I am cautiously optimistic though. The theory is fantastic, just have to wait for the follow through. The best way to sort-of statically type things right now(imo) is through namedtuples (which I make use of heavily for lightweight, strict datatypes)

Formatting for bytes and bytearray is actually one I run into a ton trying to port py2 code to py3. Pretty excited about that.
What it boils down to is that as long as you stick to users and groups, su works just fine.

But systemd is using cgroups and pam to do session tracking, and using su within that seems to break some elements of their tracking (or some concept within it).

Thing here is that su is doing the job it has always done, so frankly it is the systemd session tracking code that is in the wrong.
And the complexity is growing every second. Its glorious and confounding. I want a million life times to learn it all!
I feel the learning is like living in a fractal. Just as you feel that you grasp the scale of it, you see a whole new level of complexity.
I find where I walk makes a big difference, it's much better if I can avoid any traffic.
Everything you wrote could have been said about the comment saying that it is a status symbol.
Surely this is something that should unite both ends of the political spectrum?

For the right - it's about improving market efficiency and rewarding economically useful behaviour over 'rent seeking'.

For the left - it's about social justice and avoiding yet another way for wealth to accumulate wealth.
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Anecdotally I have observed that there are two groups of people. Runners and lifters. The one love all kinds of explosive strength exercises, the other low intensity high volume. Sprinters are lifters btw.
If this is a topic that fascinates you, I'd suggest you read Alice Miller's, "For Your Own Good."[1] This has always seemed to me to be the most plausible explanation for why Hitler and the German people acted in a way that seems so inexplicable.

It's the only explanation I've seen that starts from the assumption that there wasn't anything fundamentally different about Hitler or the Germans of the time but that their shared psychosis was the result of well-understood psychological phenomena...that the extraordinary result derives from the extraordinary circumstances in which they lived the formative parts of their lives.

[1] https://en.wikipedia.org/wiki/Alice_Miller_(psychologist)#Fo...
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Just an anecdatum, for amusement: My kids seem to know which kids at school have an iPhone. But they think that Samsung makes a better phone. This is without them having first hand knowledge of either.

Also, my impression from conversations with them over the years: The kids who were the youngest when they got cell phones, e.g., fifth grade or younger, got iPhones.
I am not a physicist but I believe it is similar in a superficial way. With a piece of parchment, the information is encoded based on the relative positions of molecules of ink and paper and if you use thermodynamically irreversible processes to decompose the constituent molecules you by definition lose any information encoded in higher layers of abstraction.

The most fundamental piece of information is the identity of individual clumps of energy (subatomic particles). The reason black holes destroy information is that they are such an extreme environment that this identity no longer holds. Any energy, whether it is a photon or gluons making up a proton, that enters a black hole becomes a faceless part of the entire mass.

Even if Hawking is correct and blackholes can radiate energy, anything they radiate will be made up of the same energy as the particles absorbed by the singularity but any information about what energy was before is entirely lost, as is any information stored in higher level patterns of that energy.
Try this one instead http://cacm.acm.org/magazines/2011/8/114944-cognitive-comput...
"taking away his title as "chairman of the physics department" doesn't strike me as fair.

And he's obviously he playing nice with his employer - to try and stave off any retaliation.

You do know the famous quote "University politics are vicious precisely because the stakes are so small."
Your theory is so important that it will get evaluated no matter what. And today it is vague and baseless, a speculation. We're seeing a lot of speculations around black holes, most of them obviously turn out wrong.
Finally, and I love the simplicity of the API. Can't wait to play with it; though I'd have loved to see modern C++ futures to have been used, given that it was just released. But even then, finally there is at least something!
Got any sources? Sounds like a very interesting topic.
You can even do that, plus add two things. 1) mail that gets filtered gets an automatic reply 'your email went into the spam folder, here's how to reach me if it's genuine', and 2) any email with say $1 or some threshold you can manually set is accepted into the inbox with a 'paid' label.

Things like bitcoin have made it pretty easy to add digital money attachment to email as an anti-spam measure, first proposed as a proof of work system by Cryptographer Adam Back to introduce a cost to sending email, a bit like a computerised form of a captcha, something that doesn't affect normal users but is disastrously expensive for power users like spammers.

The combination ensures that 1) spam gets filtered 2) genuine emailers flagged as spammers get notified their email didn't arrive 3) important email can reach the recipient if it's worth enough (say $1, totally undoable for a spammer who'd end up with a cost-per-click on his email campaign of hundreds of dollars instead of cents, completely unworkable on any scale, but financially no problem for when say a stranger wants to send you a genuine email for the first time with a non-trusted key).
And "emergency" low interest rates for 7 years or so. I imagine a fair fw of those would need to be sold if interest rates were at 5%.
Yes, you can read their legal agreement to learn about how this works.

This is effectively a 0% loan for 24 months, once paid off, it is yours.

If you choose to upgrade after a year, Apple will pay the rest of the loan and you get a new loan again.
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The article is saying that when an object is sucked into a black hole, all state information is squeezed back out in the form of vibrations.

The brick wall analogy is very bad. It is more like flushing an object down a toilet: information about what it was is represented in variatons in the sound of the flush.
I would like to see an embodied energy comparison - if it's significantly lower it might be a much better short-term solution, especially if the technology keeps improving, because then it's not as bad to replace it every few years
Since tax is tied to the value of the property when the house loses value taxes go down.