skysight-inc/HackerNews huggingface dataset:
appreciate that you go so directly after evaluating a business idea, but it's a bad one. if you were hellbent on making this work, you'd have to approach it from a different angle: Instead of "paying" for a "newsletter" (nobody gets excited about those things), you'd offer "membership" in a "community of uplifting individuals" or something along those lines. Personally, this kind of marketing newspeak turns me off massively, but I still remember a time when some flat design, sans-serif font and copy of this sort would get me excited. Also, since it's still practiced by pretty much every startup, presumably somebody still likes to hear it.

also, i sell a jekyll theme that you can buy here: https://qwtel.com/hydejack/
The phosphates are washed off by rainwater and diluted into the watershed (eventually the oceans). In the ocean, it is very slowly converted by bacteria and eventually brought back by geologic processes uplifting sediment. For a while, we could mine the deep ocean floor...which might be comparable to mining on Mars.
What are the odds this is being used for exfiltrating sensitive data? (Reminds me of a Culture novel, I think Excession, where one character tries to sneak information out of a ship by encoding it into the DNA of bacteria on, essentially, packages.)
For an idea of how these cities look here are some drone shots:

Shenzhen: https://www.youtube.com/watch?v=iKLrmi5eOn8

Shanghai: https://www.youtube.com/watch?v=1cC-j4_NtvE

Guangzhou: https://www.youtube.com/watch?v=TNlN1_ANaJs

Chongqing: https://www.youtube.com/watch?v=07dWi-MJReM

Shenyang: https://www.youtube.com/watch?v=QGBSpoTXZmw

Suzhou: https://www.youtube.com/watch?v=4aXLMS-miKU

Dalian: https://www.youtube.com/watch?v=AeEJNNMcR1s

Zhengzhou: https://www.youtube.com/watch?v=KiOlUYfM310

Chengdu: https://www.youtube.com/watch?v=0xwVQ4Jb1zc
Seriously, now border & customs agents will have to require unlocking your DNA as well as your phone.
WordPress.com gives you more options to share your posts on social networks
Startup plans to mobilise the worlds unused office spaces
"NASA did not invent the smoke detector. NASA's connection to the modern smoke detector is that it made one with adjustable sensitivity as part of the Skylab project. The device was made commercially available by Honeywell. The consumer could use it to avoid "nuisance" alarms while cooking. Like the quartz clock, this device is no longer available. "

https://www.nasa.gov/offices/ipp/home/mythbuster/myth_barcod...

edit: actually pretty much none of the things you listed were invented by NASA, several predate its existence.
Don't try to bring morality into any discussion with the free market religionists. The only true morality is profit. Everything else is just stupid.
It’s not just politics, it’s the entire human race.

For example, we are spending $45 billion in our healthcare bill to fight the opioid epidemic. Imagine if we were able to avoid such problems in the first place.
Correct. In my post, I was assuming "lander" would either be a two-stage vehicle like the Apollo lunar lander capable of both landing and later ascending (with or without refueling) or a single-stage vehicle (like SpaceX is developing with ITS/BFS) that is capable of being refueled on the surface for ascending.

And yes, fueling up on the surface is a difficult problem to solve. It will involve at least extraction and electrolysis of CO2 from the Mars atmosphere (as NASA is going to demonstrate on the Mars 2020 Rover), but most probably will also include extraction of water, probably by using a robotic machine to dig up regolith (which contains at least 2% absorbed water almost anywhere on the surface of Mars) or buried ice, electrolysis of that water and reaction of the resultant hydrogen with CO2 from the atmosphere to make methane. (And in both cases of electrolysis, you'll be producing sufficient oxygen.)

This is, of course, partly why SpaceX is developing a methane-based engine for their next-generation launch vehicle.

But you have to develop the lander first otherwise you can't feasibly land enough equipment (using existing techniques limited to just a single ton) to refuel.
This was a great article and I love how the author related it to a common purchase most people have made in their lives already.
Environmentalists will never be satisfied. There is always something to improve.

If humanity dies or goes pre-industrial because someone engineered a supervirus and we refused to put effort into space travel, all our conservation efforts won't really matter much.
My mother taught it me when I was 12. Normally it is presented like a division. At 17, I have coded it in turbo pascal with arrays of digits. If I remember well, I had found a way to apply the same method for cubic roots.
The software is useful because it allows you to have some idea of the function of each component prior to their assembly. Further, at this point, the software is designed for R&D far far upstream of being put directly used as a therapeutic. Finally, if a design causes some problem, we want to know that - we allow that undesirable property to be discovered in the laboratory, annotated, and communicated so that others know to not use such designs.
It's the default for anything. Many ports override that and specify gcc (but that was already the case in a lot of cases where they needed a newer version than what shipped in the base system).
> Photoshop filter

Funnily enough someone correct me if I'm wrong but these are almost entirely ancient single core code.
86.8% is for an infinite number of layers with concentrated solar. 33.7% is the max for a single layer p-n junction, which is what most readily available cells are.

The most expensive, high efficiency cells, like those on spacecraft, are 3 layer. They are too expensive to be practical on Earth.
"if you stump the bot, it triggers a prompt: “Need extra help?” It then provides a rather unhelpful link back to Google."

it could point you to Lexus like the real thing...
5 robots battling to carry your bags
> If I had exactly 100 widgets to sell, I can't take payment for 105 in the hope that at least 5 people won't show up to collect their purchases. That would be straight up fraud

People do this all of the time...

It's called accepting orders prior to manufacture. Most of the time it works out. When it doesn't, you deal with the consequences.

And even if you lied to the customer, you just tell them you had manufacturing delays. And either refund them, or up-sell them to another product.

The only reason we don't see this behavior in the news is that companies typically don't physically assault customers who have bought widgets that can't be delivered.
> Do people actually really log into running production systems and update code

Yes, I've done it once in a while. Cases could be is to deploy a fix and the customer's system is up and running. If say it's something urgent that can't wait until it goes through the full deployment pipeline. Because hot code reloading works so well in Erlang it's not risky as doing it in Java for example.

In fact upgrading by hot code reloading is also a common thing Erlang world. So there are cases where it is done routinely. It takes some preparation and so on:

http://learnyousomeerlang.com/relups

Another case is if you see an issue happening but don't have enough logging or tracing ability in that part of code. You can upgrade the code with an additional log statement or save extra info to a file for debugging. Then remove the patch. The alternative is to try to replicate that on a separate system which sometimes might not be easy - don't have the exact access pattern, exact data and other factor that that would duplicate the original environment.

But you're right doing it haphazardly and just sprinkling hot patched code updates everywhere is a path to disaster. So it's possible to monitor and record these updates to them them visible and managed better. It's up to the team / organization to handle that.

The bottom line don't do it routinely, but when you have it can really save the day. And it's something that many (most!) frameworks / runtimes / languages don't support as well as Erlang does.
Why Vim is the best text editor
Quad channel, so you have to install RAM with 4 match sticks at a time?
Zero right now, but the future where borders agents require you to unlock your DNA as well as your phone makes for a great sci-fi dystopia.
I really hope that you see this, because this seems like a teachable moment.

We aren't talking about making a million dollar donation to get your son into school. That happens, sure, but it's an extreme example.

Here are things that richer people can do easily & poorer people struggle with.

* Not working or working part time for four or more years

* Moving across the country

* Living in places with high cost of living (think Stanford, Berkely, NYU)

* Getting tutoring for the SAT, taking the SAT multiple times

* Going to a high school where the teachers give a shit

* Having people in your life who went to college & can help
you apply

* Having extracurricular activities that show you'd contribute to campus life

* Already being comfortable with being interviewed at age 18

These are just what I could think of in a few minutes. Scholarships _do not_ level the playing field (though they certainly help).
> you absolutely can have its value disappear from you.

This is not a fair representation of what the article says. It doesn't only say that coins you've received may lose value, it says that there's no guarantee the network will recognize the contents of your wallet in the future.

A more accurate analogy would be me handing you a crisp $100 bill which you place in your wallet, and tomorrow when you go to retrieve it, it has vanished into thin air.

Even a turd of a currency like ZWD won't materially vanish. You just have to spend it as quickly as possibly after you receive it, while it still holds value.
You're comparing latency to throughput. Visa intentionally has slow latency, to reduce fraud, which is a major problem with Bitcoin. Visa has excellent throughput, beating the pants off of Bitcoin, which is another major problem with Bitcoin.
I could see AI selecting a set of candidates, but I don't think the people running the show would be willing to delegate the actual hiring of them to an AI.
You are thinking of introns. Their function is still not very well-known. https://en.wikipedia.org/wiki/Intron#Biological_functions_an...
It's widely viewed as better designed (though that's obviously somewhat subjective); it's more modular, and a lot of innovative work on optimization now happens there rather than in GCC.
You jest, but if I ever get the opportunity I will take a one-way trip to Mars without hesitation.
Really? I'm pretty sure Einstein would disagree.
Not to spoil too much but the task was definitely a part of the reason why it didn't have better things to do. Neuromancer, by William Gibson definitely a classic
As we learned in another post, having the name analytics.js can get you blocked by Ad block extensions. Expect analytics.js to not run in your apps.
While technically true, different people have different thresholds about whether a photo resolution is acceptable.

Just like how some people can accept Facebook/Google's invasion of your privacy, while others can't.

As with most things, it is a spectrum.
"The reason they have to cede to Tesla is because of battery supply."

Then they don't have a product.

There is no longer any such thing as a luxury vehicle with an ICE engine in it. I am not spending >100k on a nice new car with some high vibration, overly-complex[1], put-put-puttering 3 or 4 cylinder motor. I don't care how nice it looks or how fancy the software is.

[1] Fuel economy regs make it necessary to turbo and super charge ICE engines to get 300+ horsepower out of these little 4 and 6 cylinder engines. These are not simple devices...
Yes this is the kind of thing I am thinking also. Why do we have to do one "big trip" to mars? It would be better to set up the infrastructure in space and on the moon etc to support future missions further out. Basically, why can't we get to mars incrementally on the current budget? Things like putting a base on the moon, landing supplies on mars, putting a lander in orbit around mars...
Yes, and you can dispute it, by contacting your them/your bank.

Who do I call if bitscoins just evaporate from my wallet thanks to this fork?
No the remaining 10%* of a time it's also not a massive problem, they hand over cash and someone is really pissed. The United thing happens when they let someone board first that they shouldn't have, and then tried to haul him off.

We can argue that the cash offer should be higher, but when was the last time you even saw the voucher bids go up past a thousand dollars and then get replaced by cash? I'm guessing never since you didn't even know it was the law. I've never seen it, only increasingly high voucher offers.

* Also it's not 10%, it's like 1 in 100000 passengers.
Is it actually possible to construct proteins from functional components like we design digital logic and software? Don't the parts interact in highly complex ways that take a lot of compute time to solve?
All hail our new AI slaves, which require less annoying upkeep and political wrangling than our old slave class. May we leverage the labor cost arbitration in our incubator startups to realize our capitalistic founders paradise and have only the human slaves we need for pleasure and mockery.
Box UI Elements – Modular JavaScript Libraries for Building UX with Content
Are you suggesting that not going to Mars will solve all our environmental problems? This isn't an either-or question.

If we really wanted to, there's no reason we couldn't do both and they're is a blocking issue for the other and some of the technology and science for both are complementary (planetary science, solar and battery technology, environmental control, automation).
Sure, but it essentially shifts the debt burden from the individual to the government.

$1.3 trillion in extra government debt isn't a large enough to really cause problems.
Judge rules pacemaker data admissible in court
Are you suggesting that not going to Mars will solve all our environmental problems? This isn't an either-or question. If we really wanted to, there's no reason we couldnt do both and they're is a blocking issue for the other and some of the technology and science for both are complementary (planetary science, solar and battery technology, environmental control, automation).
That's Okay because it is your genuine intention to fulfill your obligations. If you don't have enough widgets you can just order more, all orders will be fulfilled eventually.

But flights are different. There is a hard limit on availability, plus most bookings are time sensitive. There are only a a certain number of seats available on each flight. You might be fine with being moved on to a later flight, but then again you might not. If you book and pay for a specific flight you should have every right to assume that the seat is yours.
Humanity is at an incredibly high extinction risk. We have all sorts of incredible new technologies that could, at the very least, knock us back to pre-industrial society. They might just kill us outright.

We've already used all the easily accessible high-energy fuels, so if our current industrial society falls apart, we will probably never build another one.

If we don't get to space now, we will probably never get to space. Then it's only a matter of time until we get hit by an asteroid.

Or we'll just get killed by an engineered supervirus and skip the whole pre-industrial decay phase.

Going into space is our insurance policy.
hadn't seen this in years. any more recent examples of anyone fiddling with this kind of thing?
So how's your new Macbook Pro?
Yes it is feasible. The radiation regimes are not vastly different. They're within roughly a factor of two of one another. And since the transit time is about half a year, and we've had multiple people experience ~year-long trips in orbit at a time, I think we're well within our existing knowledge to say they'd do fine radiation-wise, though perhaps with a slightly higher risk than usual. Still better than being a smoker. That is not at all the showstopper.

If you choose to remain in orbit around Mars instead of landing, however, you'll be exposed to a higher dose. Mars' surface has a level of radiation that's below that of ISS plus contains plenty of material for shielding your habitat.

Therefore, the lander helps address the radiation problem as well by getting you down to the surface for most of the mission's duration (instead of doing initial missions in Mars orbit only due to lack of money for a Mars lander as is the current NASA plan).

(Using the ISS spare pool is only one possible solution, by the way, and not likely to be the most optimum.)
I don't think that it's correct to say that NASA is getting less and less funding. At least according to the data on Wikipedia, NASA's budget has been between $15B and $20B per year in inflation adjusted dollars for the last few decades, and so increasing a bit most years to account for inflation.

The only budget metric that has been dropping has been NASA's percentage of the federal budget, and that's more due to the huge growth in federal spending rather than any decrease in the amount of funds that NASA has available.
When this happens, the people without seat assignment haven't boarded at all, there's 10 people for 9 seats or w/e, and the airline tries to get one of them to cave for the lowest price.
Careful with these jokes -- your coding style nazis will give you a new coding rule in return to prevent this madness in the future!
LLVM-Based JIT Compiler for Ruby
The claim is not that colleges provide no value, but that going to college is not a reliable indicator of anything but privilege. Using it as an indicator of intelligence or work ethic, especially as being more intelligent and hard working than someone who got their degree from University of Phoenix, doesn't work. It's just buying into the narrative that rich people must be rich because they're smart.
I don't know, Soundcloud actually does have an extraordinary amount of independent content ("folk music") that what.cd wouldn't have ever been able to facilitate.

I'd argue that they are both quite prolific, just different.
Most people felt the same way about the Atlantic Ocean.
What's the biggest Kickstarter on record so far? Keep in mind that, while tiny compared to the total US budget, NASA's budget is still $18 billion/year.

Edit: While not a Kickstarter, I think Star Citizen might be the crowd-funding winner. Even they have "only" raised $150 million so far. That's a lot of money for a space video game. It's not a lot of money for actually going to space.
FWIW, Harbor Fright sells pliers for retaining clips. They're not the best, but like everything from Harbor Fright, will either suffice for the occasional job or demonstrate that you use the tool enough to buy a better version.
I Have No Enemies (Nobel Lecture in Absentia, December 10, 2010)
Yeah I've been thinking about this for a very long time. I think something like this would work really well with the lean start up type approach at least until you hit product market fit. Every good pitch should have an estimate for the cost of the flash corporation and the expected non vanity metrics they should achieve at the end of the initial phase.
Yeah, main difference though is that LaunchCode provides it education for free rather than charging $15k
You are correct saying that Africa has it's share of problems, but I don't think they are insurmountable.

You might want to take a look at this project: https://www.kountable.com/

I'm quite proud that I once was a part of the team working on it.
Ask HN: Any thoughts on how “The Education System” should be 4 presnt/future plp?
For optimal reading experience you can use the below format. Have a sentence or two (or even a para) for each section.
* Elementary :
* Middle/Junior high :
* High School:
* College:
An Arctic Early Warning System?
I can imagine a situation where the transactions are of such a big value that even the 7 transactions per second are enough to pay for the whole system sustenance. But yeah the system currently burns resources on a level comparable to gold mining (https://medium.com/@zby/proof-of-work-8d8265def194) - but it is much less useful than gold (for value store).
In the real-world, planning algorithms are AI so this isn't really so unreasonable.

Supply the AI planner with a set of tasks (objectives) and let it plan out what needs to be done. Provide it with a set of actuators (this could be people, software, physical systems) which are capable of, given some input, accomplishing the tasks needed for the final objective(s). Give the same planner or a separate one the authority to act within various constraints (time objectives, financial and other resource constraints).

EDIT: Honestly, I could see a lot of intermediary jobs being replaced or largely displaced by such a planner. As an example, the USAF has a role called "Item Manager". Their job is to track materiel (primarily) needed for various systems and customers, and make sure that they're available when they need to be, get serviced when they need to be, are replaced when they need to be.

A (very abstract) example might be a particular ground vehicle, let's say trucks. They have maintenance schedules, they have spare parts that are needed, and replacements need to be available should one irreparably breakdown. So an IM may be responsible for every truck of that kind for 100 customers (various squadrons around the world) each with maybe 10-20 trucks on average.

A lot of their work is already semi-automated, but with sufficient care the full scheduling of maintenance, receipt of damage reports, maintaining a supply of spare parts and trucks, can be fully automated. With a human perhaps only involved to assess the damage reports submitted from the field, and to periodically sanity check the numbers, and to actually authorize spending requests. The AI planner can be given all the information needed (including budget, shipping logistics, storage availability) to do a lot of the planning itself.
Users don't care about scaling at all. They care about capacity only indirectly.

Scaling is something developers care about, but in the nascent field of cryptocurrencies there probably no single solution.

It should be noted that with your credit card example, however, that credit card networks charge a percentage of the funds transferred while in the case of Bitcoin it is instead a fixed fee. Should you instead have said that it costs $5 to send $5000 it would have been equally true but sounded quite different.

That Bitcoin as it is described in the whitepaper doesn't scale to even a single US credit card network should be obvious to any reasonably informed reader. That every participant in the network store everyone else's transactions forever has its limitations. Does that mean the technology is useless? No, it means the use case is different from credit cards.

It seems possible to build payment systems on top of Bitcoin that fills those use cases, and sidechains and payment channels are research along those lines. But just as crypocurrencies were a theoretical possibility twenty years ago, one should not expect working products too soon. It's not like there is a shortage of payment solutions in the meantime. For end users, credit cards offer a negative cost, so even then we should not expect the use cases to be identical.
Not too many decades ago, computers were also prohibitively expensive and largely only available to corporations and governments.

I don't think we can discard any possibility given the exponential nature of human advancement.
Open Listings raised $6.5M to help you buy a home without an annoying agent
Think so? That's a naive view of business. You know what airline doesn't oversell flights? JetBlue. You know which airline doesn't turn a profit? United. Weirdly, JetBlue is profitable though.