skysight-inc/HackerNews huggingface dataset:
That is until somebody writes a simple script to utilize the protocol to overload an end server with requests, then a server not equipped to handle such a load will fail due to an exploit that wasn't immediately obvious (of course it is now. It's an assumed part of best practice for any large project.)

The protocol doesn't offer any recourse itself, and the end user who might suffer because of such an attack has no defense. They rely on the ability of the engineers involved and some technical voodoo they don't understand to keep everything safe and working for them. That's my point -- I wasn't comparing the technologies directly, but their roles in a larger system.
These are good points. What if the default behavior of a contract was to reset the world to its previous state if the program does not terminate within 30 seconds?

Arguably unclear termination semantics would be a good reason not to trust a contract. Ideally trust mechanisms would exist such that closed source contracts were trustable via a pure insurance-based mechanism.
I guess that settles it then!
Your posts always resonate with me, thank you, but I particularly need to hear this one. I will not call myself exceptional, but I often find fitting in almost impossible. Finding a niche and owning it is then survival! Although I'm very aware of the high failure rate with startups, I can't help but keep believing that I can do this thing. Sometimes though I am torn by guilt, that I'm such a snowflake, but I don't know, one thing I know for sure is that if I don't give it a shot, I will regret for the rest of my life. And that is much more unbearable.
What is catnip and what is it doing to my cat?
Not quite true. More auto accident deaths than opioid overdose deaths.

From your own link:

"According to the Center for Disease Control, in 2015 52,404 people died from drug overdoses in the United States. 33,091 of those deaths involved opioids. In comparison, 35,092 people died in auto accidents in 2015 (Department of Transportation), and 12,195 people died from non-suicide firearm-related injuries in 2014 (CDC, 2015 data not yet available)."
NASA, like many large organizations known for prestigious accomplishments, can struggle to meet the needs of those doing more run-of-the-mill things (like internal HR apps as you mentioned). Especially in a place like the government, people's ego's feel small, and they try to compensate by making their projects bigger, grander, and overstated. This just results in bloat, too much talking, and BS as you mentioned.

I'm sorry you had that experience. If you ever consider coming back, I'd recommend getting involved with something more directly related to space applications.
Parity does not appear to be an online service. It's local.
Yes, bingo. I'd suggest reading into how this person described your business. :)
I've been writing some smart contracts over the last couple weeks and have learned a lot from OpenZeppelin's solidity repo–you can either use them directly (importing and extending off of them) or use them as a good resource for building tokens, crowdsales, etc–can't recommend them enough.

https://github.com/OpenZeppelin/zeppelin-solidity
> Equality should at least have the property that
∀ f, x = y ⇒ f(x) = f(y)

My impression was that even that might be a bit contentious[1]. Well, maybe not contentious, but maybe... disputable? It also requires a theory of functions, or at least a syntax to derivation rules.

That was just to be absurdly nitpicky, I think I understand what you're saying here, and it's much appreciated.

[1] https://pdfs.semanticscholar.org/806a/92153c4b8d344edec45eec...
Windows 10 upgrade process: it takes longer, but with less downtime
Ask HN: Do study notes on GitHub breach copyright?
I have been making notes on technical programming books (which I've purchased) for my personal development. An example is modern c++ by Scott Meyers.

Often I paraphrase what is being said but the structure of the notes still follows that of the original text.

If I push these notes to my personal GitHub which is a public repo am I breaching copyright?
just what do you intend to do? Get a recipe that says 2 pounds chicken leg, 30g garlic, 10 sesame seeds and 4.2 cups yogurt; and then sit down and measure everything to these precise requirements? Realize you only have 4.1 cups of yogurt, and start skimming a little meat of the chicken to toss? It'd take you a day just to prepare the ingredient measurements! Drop some yogurt and you're back to the measuring table

Home cooking is an improvised activity, primarily because its so lenient in what it'll accept. Of course, maybe the french will tell you otherwise, but most food doesn't come with any intent to be 100% reproducible (and it'd be extremely boring if it were), or "designed". They come out leniently tasty, and they look good leniently.

Until brown? Until it looks like a good shade of brown. Until ready? Until it feels like its ready. To taste? Until its tasty.

Its imprecise, because its an ancient activity. You do what seems like a good idea, and don't do it next time if it fails. Its a game where losing is kinda fun (unless you're "designing" food, which I have nothing to say about)
This is probably a good place to ask as any; I might be interested myself (depending on the price point you're looking for), so I'm going to ask more questions:

- What price point are you looking for? 1 year profit, 2 year profit, so like $90-180k? (seems like a normal range for valuation of companies)

- For that matter, you mentioned 90k/year "the year it opened", implying that that was the first year and you're not on your first year now. Are you making more, less, same right now?

- What does running the business entail, what is the day to day operation like? Talking with residents and maintaining condition of the place?

- Does the day to day operation require living in the complex in Mountain View? (I know you mentioned it as a perk, but I own a house myself, with a family, elsewhere, and am not interested to move. Am I the wrong "target audience" to sell to?) [edit:] To clarify, I am in the bay area, but not in Mountain View. [edit 2:] To clarify again, I don't have a problem with commuting to MV to work here, I only mean that I don't intend to live there, and would probably rent out the "master rooms" also just as any other, if I run this.
Incredibly spot on. That's why I went on Suboxone instead, solely because it means I only have to go in once a fortnight. Nice regular prescription, but yeah the amount of travel I do is difficult with it, despite being on the program for 5 years.
When you've actually got nothing you spend your days fighting to survive. See every homeless person ever.
Actually, I think Solidity being designed to turn bad node.js coders into bad smart contract coders was key to Ethereum's success.

I've written a book on this (hit upload five minutes ago! release Monday!) which hammers on this point (and all the stuff surrounding this issue). I think Solidity is actually designed with worse is better in mind, because Ethereum is the first smart contract platform that anyone actually used. Some tried doing them in Bitcoin, but Ethereum's the first that gets lots of action. And so many other blockchains lift the smart contract functionality straight from Ethereum.
* Taking many years to get ....

and at the same time Moz / FF waste time and money on stupid side projects and Virtue Signalling no one cares about.
I used a aws t2.micro 3 year reserve for a side project. It works out to about $5 a month. I also had a few different services, I just put them all on one machine.

I've been looking at DO and something that strikes me is the 20% backup fee, with ebs, the thought backups never even occurred to me. Maybe they should've.

Aws pricing, I found this useful: https://calculator.s3.amazonaws.com/index.html
I have zero domain expertise in cryptocurrencies or Ethereum, but much experience with unexpected failures of "guaranteed" things and processes.

To use your analogy - I'd view the bridge design engineer as having guaranteed that the design process could not possibly result in construction of a bridge that fails. That seems closer to what Ethereum would have us believe.

A bridge design domain expert presumably understands:
- that design process uses strut calculations (and therefore includes measures to guarantee those calculations can never be wrong);
- that bridges may be built from steel (and therefore includes inspection routines that guarantee faulty steel can never be used);
- that the environment acts on bridges through corrosion and earthquakes (and therefore includes routines that absolutely always preclude failures arising from the bridge's environment);
- etc., etc., etc.

Maybe it's just my ignorance or misunderstanding of this domain, but I see Ethereum as naive in its guarantee of perfectly predictable behavior.

A guaranteed flawless protocol that fails (for whatever reason) when implemented in reality, isn't.
Or have the pandit come out to your house... every puja I've been to has been at someone's home, rather than at the temple.
I also think the pricing is unsustainable.

Even if you are making mobile apps all year round, what if tomorrow you don't want to use Fuse anymore? You'd need to keep on paying the subscription to fix bugs.

What if you are a freelancer who only makes mobile apps from time to time? Again you need to pay the whole enchilada to be able to fix little bugs from time to time.

A price per published app would make more sense IMO. Allow devs to use the complete experience for developing, make them pay when they need to compile and publish the app. If you are confident that your users will love your dev experience (which seems your stronger selling point) this would not feel like a trap.
Seems like a bad comparison to a Tesla then, no? Nothing but click bait.
You compared it to Mt Gox, which is where the confusion is coming from. With an online service like Mt Gox you don't have control of the coins at all.

I have no issue using an open source implementation of something. You haven't explained why that's an issue.
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Tech startups are completely random. When you're starting out, it's like playing the lottery.

The more you win, the easier it becomes to win; this keeps you playing... Until you suddenly lose everything.
as Phyllis replied I am in shock that any body able to make $4140 in a few weeks on the internet . try this website..
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The DAO hit every objection from smart contract skeptics, bang bang bang - legal code doesn't work at all like computer code, immutability means you can't fix mistakes, immutability means you can't deal with changes in circumstance, immutability means you must code with 0 bugs - but even we were surprised when they went "lol immutability guarantee" the second the big boys were in danger of losing money.
> Basically, if 51% of the network think you have too much money, they can just take it from you with no recourse available.

That's not how it works. Even if you had 99.99% of the hash rate, you still have to work within the rules of the chain, so a "give me your money" without a valid signature would still be rejected as invalid by every full node (and you just wasted your hashing power). What having 51% or more of the hash rate allows is a double spend attack: you can undo recent transactions, so you can spend a coin twice.

But the rules of the chain can be changed. If for instance 90% of the full nodes decide to change their software so that "give me your money" is now valid in some special circumstance X even without a valid signature, and that "give me your money" transaction is sent to the network, these 90% of the nodes will allow it to be added to the chain, and let the chain grow on top of it; while the other 10% will grow a separate chain on top of the last block without the "give me your money" transaction. Soon, each side has an incompatible view of which transactions are in the blockchain; this is called a "hard fork". And if the minority side is small enough, it will no longer matter if they still say you have your money, since everyone else you want to transact with will say you don't.

That's what blockchain proponents tend to omit: the blockchain is a social construct. Its rules are fixed as long as the majority of participants want them to be. When they decide to change the rules, like that time when the Bitcoin developers fixed a database bug which changed the validity of some blocks, the rules will change. Even retroactively.
Eth is worth less right now, as there is an implicit chance that all transactions will be rolled back to a few hours ago. Hence any buyer of ETH will be getting a fair price for the risk. Wild west all round.
It appears the hacker has begun moving ether from the account. The number presented in this link will no longer match the amount in the title. There is currently 83K ether remaining.
The treatment is pretty brutal. Even when it's available for most cancers there's still lots of room for improvement on the tolerability side.
Thanks for the help. My company uses CPLEX in production on some massive models with a lot of constraints. I'm always curious if Gurobi would be better, but I'm not sure how much work it would be to port it to run on a trial version of Gurobi on the same hardware.

Edit: What are the numbers in the links provided? Number of solved cases or time?
It might help to think of yourself as enriching the diverse ecosystem of humans in order to enhance life for all. In nature, monocultures are horribly vulnerable to disease and other problems. In contrast, diverse ecosystems mean that one creature's wastes are another's nutrients and many creatures can co-exist because they aren't direct competitors. They need inherently different things.

Taking up some niche no one else wants means you aren't in competition with others and you add life to spaces that would otherwise be dead. There is zero reason humans should all strive to fit the same mold and many reasons to be horrified by the idea.
Is multi-branch pipeline really flexible enough to handle e.g Haskell/Cabal projects and Scala/sbt projects and "random things that I'll be happy to specify in a bash script?"?

Remember, I need this thing to be invoked by Gerrit, periodically, whenever there's a push (well, polling would be fine on this one), etc.

It turns out this is pretty complicated... and maybe nobody does it just right for you. (Hence my other comment. I want ultimate programability. As long as you give me visualization, then I'm OK. I can deal with having to edit a file and pushing rather than doing it through a GUI.)
Why would we choose to read the sort of fake news that olds deliberately poison their minds with?
Good thing that isn't the case! WHOOPS that already happened in Solidity didn't it https://medium.com/@muneeb/solar-storm-a-serious-security-ex...
Think Perl 6 mega book review
"there is a certain type of person who only works at their peak capacity when there is no predictable path to follow, the odds of success are low, and they have to take personal responsibility for failure (the opposite of most jobs at a large company)."

I have never really stopped to consider my own motivations for doing a startup but this sums it up. Do a startup because you have to, not because you want to.
Free for EU citizens. For people from the US there is a small charge if you move here https://www.gov.uk/healthcare-immigration-application/how-mu...

It doesn't cover tourists anymore in theory. They'd treat and then bill you but you could probably go home and not pay.
> It is possible to have trusted contracts, iff their logic is (mathematically) proven.

Suppose a non-Turing-complete language were used instead. Now, imagine a contract that is highly complex. If a layperson decides to trust that contract without reading the code, does it matter whether the language used to implement the contract was Turing-complete or not?

I'd argue that trust of contracts is pragmatically more of a social concept than a computational concept, since at scale the vast majority of contract users would make their trust decision about a contract based on non-technical factors.
Really glad to hear this perspective.

Over the past seven years most of my time has been spent in robotics research labs, and I really struggle to reconcile the state of research with the concerns of those like Elon Musk. I think a series of discussions between the major figures on each side of this would be really valuable.
You may find this interesting: https://en.wikipedia.org/wiki/List_of_countries_by_traffic-r...

Sorting by the second column gives a good picture about which country has more dangerous drivers. And Thailand is #2... so your claim tracks well against this reality.
It's a strange attributional convention used in headlines and links by some publications. I've never understood why, as it reads so confusingly, snd the reverse usage (source: topic) seems readily and intuitively available instead. But it's still common to see (topic: source) in certain house styles.
Monero is the ONLY cryptocurrency where full privacy is enforced by default. No mixers, no opt-in mode, no super-nodes, no tumblers, it's all obfuscated by default. I'm very bullish on Monero long-term.
Whether it's an online service or a local wallet with an embedded buggy smart contract, your coins are just as gone. If you're perfectly happy to use it, you're perfectly happy to lose everything.

How many millions need to be lost before this lesson is learned?
Only good if they can keep the group together after amassing 70+ million dollars.
For the purposes of this project I'm not sure that `file:` is a safe uri prefix.
Yeah... Nope... Wake me when I can buy a zeppelin (no, not a blimp, a zeppelin, and throw in a monocle too) for that price because zeppelins.
Can someone explain to me why you would want a smart contract for multi-sig? This is a feature that can be implemented easily off-chain, i.e. using split keys (Bitcoin has had this approach for some time).

Seems like having this complex logic on-chain is asking for it to be exploited.
Ah yeah I was running the Beta for iOS10. Makes sense. Cheers :)
I don't know the family situation of the AirBnB founders personally, but Wikipedia says both of them were social workers, which isn't exactly what most people would consider a rich kid background.

I'm always a bit perplexed by the people who come out of the woodwork to say that startups are a rich kid's game, though. What's the family background of folks on this site? I understand that there's a wide variety of socioeconomic statuses on the Internet, and that wealth is relative and 50% of Americans have zero in savings. But is there actually a huge HN population whose families are worse-off than social workers (Brian Chesky), seed & clothing factory workers (Marc Andreesen), mechanics (Steve Jobs), engineers (Steve Wozniak), college professors (Larry Page), or refugees (Sergey Brin, Jan Koum)?

I come from a single-earner (elementary school teacher) family, and usually think of myself as smack in the middle of the socioeconomic spectrum. I could and did move back home after college, but then, a lot of children also have that privilege. Do the demographics of HN skew so much poorer that most folks here do not have parental households they could go back to?
I didn't grow up in the 1 percent and the vast majority of people I know in YC didn't either.
I hate it when people who know how to disable them don't do it and complain about it. It is really Ubuntu's fault for bundling an addon that is not compatible with multiprocesses.
If we put "cash in a hidden safe" at 1, I'd put "money in a bank" around 10. My checking account was once drained by the state on a clerical error. Or almost - they left me 17 cents. They did have a process to get it back (which, interestingly enough, involved emailing cryptographically signed documents back and forth), but it took a few days, and it was only lucky timing that prevented it from triggering a cascade of problems.

These newfangled experiments that I don't fully understand are still well above 10 for me, but they only have to get down to around 11-15 before I'll be interested.
As Charlie Lee said:

If the creator of Solidity, Gavin Wood, cannot write a secure multisig wallet in Solidity, pretty much confirms Ethereum is hacker paradise.

https://twitter.com/SatoshiLite/status/887781929726038016
> Not just proof of "design", but proof of the implementation.

Absolutely, few people really get this. Even those that do get it generally don't know what it looks like in practice because it's so rare.

In case you're curious about what it looks like in practice (at least one way), we presented direct user code compilation and verification[1] in Jan for our smart contract language Pact[2].

The idea that you can write a doc test that triggers a formal verification about some aspect of your code is, for lack of a better term, strange and yet the power to weight ratio is just off the charts. For the first few days that the system started working (I built the FV portion, Stuart the language + H-M type system) I thought it was broken... turned out we just had a bug in our demo code that we never noticed.

Usually, tests check the things you know to check so when they find something it's not a surprise what they find. Sometimes you can fuzz and randomly find something, which is cool but doesn't guarantee that there isn't a problem somewhere else. However, FV just feels uncanny (as a dev) because the test either finds a problem in the code -- and tells you how to replicate the bug -- OR proves that a problem cannot exist.

[1]: https://youtu.be/Nw1glriQYP8?t=1071

[2]: kadena.io/pact
I have an photo of a handwritten signature that I use in Adobe. They do a pretty good job of extracting the signature contours from the photo. I've also seen a (much crappier) version of this on my mobile banking app, for processing photos of checks. They basically just blow up the contrast until only the blackest part of the image remains. It looks awful, but it might be a good place to iterate from. If you implement something more sophisticated, it definitely makes sense to save it on the backend so you don't have to redo the (possibly expensive/slow) image processing operation every time.

A signature pad could work too; I think HelloSign has something like that. But it's not a great solution if you don't have a tablet, since it's really hard to draw a proper signature with a mouse. Honestly, even just adding a "handwriting font" might be good enough for most circumstances. Most of the document signing services provide this, and it could be implemented very quickly with minimal changes to your API.

If I were you, I would probably start with a handwriting font, and add hand-drawn signature support afterward. I would also look into what the law says about this sort of thing. I know that services like HelloSign require that you authorize them to use your signature in a legally-binding manner. But I don't know if that regulation would apply to your service, since your service is a lot more bare-bones. For example, you don't store the PDFs indefinitely, and you don't coordinate any sort of multi-party signature operation; that all happens out-of-band. So you might be in the clear.
If you are directing the immune system against cells that the body perceives as 'self', then simply boosting the system to the point it attacks a cancer will likely be detrimental the patient. Cancers and other similar diseases are so difficult to address precisely because they are borne from a patient's own cells, own genome, and own systems. This therapy here is a very pointed mechanism to demonstrate to the immune system what is okay to attack, and what is not - a very particular and specific kind of guidance that a generalized 'boost' would not properly address. And in that way it actually is an elegant, precisely designed system in play here.
Sorry was I should have said is the vast majority (over 90%) of our employees didn't come from Ivy's.