skysight-inc/HackerNews huggingface dataset:
It’s simply a waste of money if we can do the maths and see that it’s always going to be vastly worse than putting them on roofs, on gantries over roads, or literally almost anywhere else but on a dirty, flat surface with huge pressures on what we already knew were fragile and durable cells.

There are several factors, each alone that make this idea a non-starter. All these were known from previous experimental results so this never needed to be done. For example -
1. Placing cells flat reduces the power output by 30% over putting it at an angle and facing north. The angle varies with how far you are from the equator. So putting solar in roads will always yield at least 30% less power than putting it in an appropriate location.
2. Roads are extremely dirty. There’s dirt, brake dust, rubber, etc., not to mention shading from buildings, the natural geography and cars while they are driving over it. This will mean at least another 10-20% less power per solar cell, which will degrade as it gets dirtier. So you’re probably throwing up to 40% of your power away unless you’re cleaning them every week or so.

Then factor in damage, etc... a basic engineering assessment shows that it is infeasable, and even with massive improvements, rooftop solar and solar farms will always be correspondingly better.

But since you seem to be so big on experimentation, do you want to send me a few million dollars and we’ll put solar on the biggest area of all - the sea floor? Think of how much space there is! I mean, we can calculate that basically no light reaches it, but that’s not important, right? It’ll be valuable data!
it's like that kid who envisioned that we could clean the ocean of all the plastic by laying a long catching device. but they never bothered consulting people who actually build ships and other seagoing vessels. and they didn't bother consulting people who've actually worked on this problem. I believe the biggest issue is that the plastic tend to float under the surface of the water and this thing floated on top of the water. and then in the end this thing just bunched up after a day, so it never really caught any plastic.

this is the problem when you have rich people pick and choose which ideas gets implemented. rather than having people who are actually intelligent and have experience driving innovations you have a constant flow of bad ideas. inevitable something will work and these idiots will claim that their process actually works. no, it's more like they have the money to afford a lot of failures.
Making suboptimal investments is also a tax of a sort. Presumably the carbon capture projects that are optimal deployments of capital are already happening. If you want other “investments” to happen, you’re going to need to subsidize them.

So I think the question is: “is the subsidy required to trigger the investment <= $9/ton of CO2 removed”. If the answer is no, we’re still better off deploying capital dumping sand on beaches and otherwise letting investments happen via standard market mechanisms.
Just matching that regex alone is going to take a pretty large number of instructions (at least dozens.) That's not "simple" by any measure.
he already said he could get someone to provide to him...for $500k. Why would it be unwise to build this if "he's not in the business?" isn't that literally what the above site is for?
"Best entity in the world."

Would love to see some data or citations behind these bold claims.
Same reasons they put their zodiac/astrological signs. About as scientific.
>It would be wasteful not to borrow money at near zero rates

Someone gave me this argument recently. Mostly because she would have made a couple thousand in fees. I'd have been out tens of thousands in fees and interest. It wouldn't have done me a lick of good unless I had something amazing to invest in, which means I could have borrowed some money later.

The same actually does apply to the government spending dumb ass Saudi/Japanese tribute money. If they're not investing it in something useful for the future, it's just lighting money on fire.
> in js/node is is a valid object
> { hello :'world' }

In JSON, that's invalid, because the key must be quoted. Check the spec.
I guess it depends how you use it. I started hearing about FizzBuzz in the context of "why can't programmers program" [1]. I.e. that many interview candidates can't solve this problem.

It's also my experience interviewing programmers (outside SF) that most candidates can't solve simple FizzBuzz style questions. As a take-home test, I agree I can't really see the value in it.

[1] https://blog.codinghorror.com/why-cant-programmers-program/
It's not just about regulation . The eco-liberals of the 80s and 90s actively influenced the political landscape to stop nuclear power, which also caused companies to halt investments.

We shouldn't be rewriting history now that we see that nuclear power could have actually prevented global climate change.
Jumpshot is Avast.

Just a subsidiary.
Yes, there is a federal preemption law (FOPA) that permits travel through a restrictive/prohibitive state if the origin and destination permit the carrier to lawfully posses the firearm. However, meeting the FOPA criteria may be treated as an affirmative defense in some states. IANAL so YMMV.
Manipulating emojis in Java, or: What is :) and 1?
I know it's bad to hold USD, but this makes me want to take out a loan
Any tips on signing up?
The US isn't China (or Russia, or Sweden), but when the number of conglomerates in the US has shrunk from six to five, and those conglomerates and their subsidiaries are all run by an elite class of billionares and hundred-millionaires, all with strong ties to and from various politicians, let's be honest that, organizationally, the US doesn't look totally different from China where there are also only a small handful of companies that control everything, the people that run the are ridiculously wealthy compared to the middle class?

Especially since China's internal media companies are now run as for-profit businesses, just like Comcast, Disney, AT&T, FOX - not the parts that Disney bought, and CBS/Viacom, the five media conglomerates in the US.

It is necessary to do the comparison between authoritarian regimes and democratically elected governments where all citizens are subject to the rule of law, because if you squint, they can look similar, and in these trying times it is extremely important to be aware of the key differences, even if some things can't be 100% proven inside or outside of a court of law, or haven't been yet.

Both candidates give giant piles of money to Facebook and Google, and the real power isn't in pushing one or the other, the important thing is that we don't look too hard behind the curtain. I'm all for adding select Internet companies to the list with the five media conglomerates.

Amazon is paying people to post anti-union propaganda on Twitter. Walmart is firing people for making pro-union posts online. Google controls what pops up when I type in antifa and Facebook controls if I see my friends' activities about political rallies in my News Feed.

What's the principled, moral stand going on in Hong Kong right now standing against the Chinese authoritarian regime?

What's going on in Portland?
Where was this when Reader died! Looks great.

The big problem at the time was there was no good options, even a year or so after and I gave up trying. Everything was 90% of the way or too fancy for such a simple service.
> most programming is not solving tricky puzzles, but grinding out code.

Sounds like most jobs need dispassionate guns-for-hire who'll do excellent work, no matter how tedious, get paid, and go home. In other words: pros.
This was obviously never going to work

Could be, and I suspect that a lot of the actual engineering folks involved would agree 100% on this point. They'd probably also tell you that 5 million for real - world experimental data on the exact ways in which it failed was very much worth it.

Was there anything else worth responding to in the wordy pseudo-psychological insults?
As opposed to coal, oil, gas etc where we know where to put the waste—into our atmosphere. That's great. Let's shut down the nuclear and keep the coal going until renewables step up.

But for a few paranoid NIMBY protesters, everyone knows where to put nuclear waste—send it to breeder reactors.

Also, catastrophic nuclear failures are not deadly. Radiation from Fukushima has killed 1 person. And despite being the most absurd scenario possible to contemplate, radiation from Chernobyl killed between 30-100 people.

In 2011, there were 163 wind turbine accidents in England that killed 14 people. Wind kills more people than nuclear, and nuclear makes orders of magnitude more electricity.
I wouldn’t say “ran on.” It wasn’t a fly by wire system or anything like that. But plenty of electronic systems would have used vacuum tubes, such as radios and radar.
This is from a broadband provider perspective but this company vetro is enabling people to do lay smart fiber. This could help someone lay do a fiber plan for their local municipality
https://www.vetrofibermap.com
I'm a bit skeptical of the app. The city very briefly open sourced it. After people dug through the code and raised some privacy concerns, the city removed it from github.

The architecture of the app seems a bit weird to me. Your position is continuously reported to a central server to determine whether or not you are sent an alert, as opposed to filtering that client-side. I suppose it's easy to criticize when I'm not aware of some of the constraints they may have had to deal with, but it was frustrating that the app wouldn't even open unless I gave it fine-grained location permissions on my phone.
How to find websites that are well hidden on the internet?
Hello, I would like to know if you can give me some tips so you can find websites that are quite hidden on the internet, obviously I mean from normal search engines and not to the web depp
Sometimes they share how they beat the market in the past after their advantage faded, i.e.
http://www.edwardothorp.com/books/a-man-for-all-markets/
Probably tens of thousands.

And it will still be a faster operation than fetching the next json file from disk by an order of magnitude, or two.
It's the only benefit I suppose.

I neglected to think about tab-completion, but I see you mentioned it at the end. I've never used it for bash. It really depends on whether I can guess or remember the first letter(s) to the option. If it's a command I am new to, I'd still need to print out the available options anyways.
I'm assuming it's a MacBook that is being operated normally by a normal person.
National lab details $13B in building plans over next decade
I often manage thousands of servers. This is not a viable option for me.
Made me look:

https://wikidiff.com/acerbic/caustic
Concrete example why it doesn't necessarily work:

Lets say you always have two companies, A and B. Each year one of them triples in value, the other loses all its value, but the loser gets recreated so you can invest in it again. Each year you get to distribute your funds.

Your original strategy is to invest everything in A every year. But after doing some simulations, you see that your current strategy makes you lose all your money within a few years since A will sooner or later make you lose all your money. Should you invert your current portfolio and only buy B? Of course not, both stocks are equivalent in isolation!

The best strategy is to allocate your funds 50/50, that way you double every year. Allocating each part of your money randomly would get close to this, so is still way better than just picking one or the other. What is important is to find stocks whose risks doesn't correlate with each other, since correlated risks will cost you a huge amount in times of down-turns.
For all the negativity for these type of tech interviews, they are, from what i've seen, one of the most merit based systems out there. It is either this or we need to create some sort of national developer exam. The other alternate is to get jobs at good companies, they will only look at what school you went, whether you graduated with a CS degree, what companies you worked etc... All things which do not guarantee merit.
Bright high school students are vastly oversupplied compared to seats in elite colleges. Graduation rates are in the high 90s. There are many more than 5,000 kids who can handle the workload; which 5,000 you pick is arbitrary.

Engineering competence is not even slightly oversupplied compared to useful engineering work. Project failures, incompetent people, and systematically incompetent orgs are still very much alive at the most selective tech employers. There are real business needs to hire better engineers.
No, but thanks for the link - I don't think I've read that one (though I can never tell from Ted's titles). Text: https://web.archive.org/web/20140222103103/http://subterrane...

Maybe I should have said "Language is the bicycle of the mind", but we didn't invent that.
After checking the website, why ‘never frozen’? This is perishable and flash freezing and thawing isn’t a bad idea at all.

$12 is too expensive as many here have opined. Having said that, you can’t make a profit..never mind break even at that price point on a never-frozen, always fresh, delivered to doorstep stand alone perishable $12/order item.

I have done this model with ghee before. And it’s was only one ingrident: butter and it was made in a commissary kitchen/permitted/licensed shared kitchen. And I could make large batches as it was not perishable.

With rent, insurance, packaging, delivery, CoG, labour and other expenses, you will have to sell a few hundred per week on one end and several thousands per month just to get over the hump.

I know this. I have lived this. Freeze it. It’s not so bad. It’s actually a good thing for perishable food.

Good luck.
I'm not a professional coder. And I mostly work with tabular data, in spreadsheets and SQL. I like to get my data as delimited text files. Ideally, delimited with some character that's 100% guaranteed to never occur in the data. In my experience, "|" is often a good option, but you never know. And CSV, even with quotes, can be a nightmare, especially if the data contains addresses. Or names with quoted nicknames.

Anyway, given the choice, I always pick JSON over XML. Because with JSON, I can always identify the data blocks that I need, and parse them out with bash and spreadsheets. Not with XML, however. Just as not with HTML.
Don't US cities already have laws around this?

In Australia I can't just stick a giant billboard in front of my house or shop without local government permission

Any signs need to be in keeping with the existing streetscape and usually kept to reasonable proportions
When I watched high-resolution videos on Youtube with Chrome, its process could take about 400 Mb of memory or even more and swap out other processes.

I've noticed you've said this twice in this thread like it's a bad thing. This is exactly the behaviour I'd expect and want.

If I'm watching a video I'd want the system to do everything possible to make it as smooth as possible.
> There will be no political solutions to climate change, only technological ones. The clearest example is carbon taxes, they fail to pass or are repealed in Australia, Canada, Washington, France.

This is flat-out wrong in the case of Canada. Carbon taxes exist in 6 provinces of Canada currently (one by choice, 5 provinces had a federal carbon tax imposed as they did not have provincial legislation with comparable effect). Two provinces challenged the tax in court and lost.

In the case of British Columbia, their carbon tax was by choice, and their economy has grown (faster than Canada) while their emissions dropped [1]. Carbon taxes are a political solution that works.

[1] https://en.wikipedia.org/wiki/British_Columbia_carbon_tax
This is a really interesting observation, thank you.

Is there anything they could have done differently to make the situation easier? (I would guess perhaps giving you more notice about language requirements?). Or is there a different interview format that you feel would have worked better?
If you're interested in this topic I highly recommend Adam Minter as better source on this stuff. He adopts a strictly economic perspective on the recycling trade which makes way more sense.

https://www.amazon.com/Junkyard-Planet-Travels-Billion-Dolla...
State of the React Job Market
Docker: Make Files Created Inside Containers Editable Outside
> There was plenty of excitement

The point is there shouldn't have been. Some people deduced and others hoped or willed themselves to ignorance.
Alexander Graham Bell
William Shockley
So rsync.net is your cloud storage backup solution, and you also want something local that can be customized. But you want to...have the user carry it to and from work?

They'll never use that. That sounds incredibly annoying.

You've already got cloud storage. Add alerting for yourself if the user hasn't backed up within an acceptable period of time. Your user will always connect to the Internet wherever they are, so the backup will keep happening as long as you've set it up right.

Then, hook up a spinning USB drive to their laptop dock at work or whatever, and enable Time Machine/Windows Backup.

Anything more than that is:

1. An indicator that the primary place for this important data to live on shouldn't be a portable workstation, it belongs on a well-engineered server in multiple data centers getting professionally backed up.

2. Over-engineered and prone to break anyway

3. Impossible to maintain once you stop being their provider

Finally, the most important part of backups besides backing up is to test your restoration solution. If you've never tried to restore your backup you don't really know that it's a backup at all.
Very clever. That said, there’s plenty of HKers who were happy to be govt stooges who speak Cantonese and can write English.
This race to the bottom, as parent poster said, is from a generation of developers hyper-specializing in interview-style problems. These problems are tiny and self-contained and have a slick solution which can be regurgitated onto a whiteboard in about 30 minutes give or take.

While that is not a negative skill to have, it is also not a skill that I'd list anywhere in the Top-25 of most valuable skills for productive developers.
Very interesting. I wonder if researchers take the time to make sure they have hardware that can handle such things
Yes. I believed MJ’s innocence too... I so desperately wanted to believe in his innocence because he was such an incredible artist... until I saw the documentary and did more research. He had “child companions” one at a time, alone in his room, with a silent alarm to let him know if anyone approached. That moment of Jimmy Safechuck describing how he cried on the bed as he realized he was no longer Michael’s favorite “companion” was absolutely heart-wrenching to me. It wasn’t a “slumber party atmosphere.” It was a one-on-one predation atmosphere.

To me, Diane Dimond said it best: “Is Michael Jackson the incredible victim of multiple extortion attempts? Or is he simply a man that is a pedophile?”

I can’t believe the amount of MJ truthing in this thread and Im glad you’ve seen the light. I agree that the stories in the doc may not be 100% credible, but Jimmy Safechuck is simply not a Machiavellian personality type, IMO. I strongly believe Safechuck and Robson, strongly believe that MJ was guilty as hell, and thanks for circling back to discuss your findings.
Correct, but they have links to storing cache in tmpfs as well.
> The article can't even render fonts correctly.

The article, or what you’re using to view it? Falls back fine for me.
> Total coincidence - MA has the lowest gun death rate at <1/3 the national average and <1/6 some of the most dangerous states: https://en.wikipedia.org/wiki/Firearm_death_rates_in_the_Uni...

And yet Massachusetts' murder rate of 3.2/100k/yr is right about the median for the US. Who ever would have thought? (Granted, the suicide rate of 8.8/100k/yr is pretty impressive, and some of that might be assignable to their gun control efforts)
Dude’s a professor at Santa Cruz in the film department, not some “leech in the software industry”. Ex-Media Lab. Code on his site looks legit and his, I bet he’d pass fizzbuzz.

I found this out in 15 seconds of Googling.
Yes it was designed in the 50s but there was plenty of time for the design faults making it vulnerable to a tsunami to be fixed..
How to Manage Thousands of Ecommerce Product SKUs
Oy vey. I didn't mean passion in the "I'll work 80 hours a week for little pay mister!" kind of way. I mispoke. I meant that before, if you based your interview process off data structures and algorithms, you'd get competent professionals who just happened to be good at algorithms. While now you'll get a bunch of people who have specifically trained to be good at algorithms. Which has no bearing on competence.
Neither Jsonnet nor JSON5 are JSON, and they're considerably less popular than their forebear.

(Although I do love JSON5.)
Also 95% of job descriptions list skills candidates will never use and screen candidates with problems they will never encounter.

At the final interview to join the SRE team at Google I was asked to implement the kNN algorithm. I barfed at implementing a kD-tree after regurgitating the brute force solution.

Has any SRE ever had to implement a kD-tree in < 20 minutes or Google would go down?

I asked the interviewer at the end. They had never implemented one on the job.

As long as companies insist on these inane rituals I think it’s fair game to optimize for it as an interviewee.

It’s stupid but what else can you do?
It’s never a zero sum game - we can try many things at once, some will work well, some will work poorly, some won’t work at all

Trying things helps us move forward
Quantum theory pretty conclusively shows that it is in fact.
>I'm saying that things that don't fly at small scale, don't become good ideas at large scale.

They absolutely do.

Fourier transform multiplication methods are a terrible idea if you run them on numbers that aren't hundreds of digits long, but the only way to multiply truly large numbers.
Any serious carbon tax scheme proposed is income neutral; a tax-and-dividend system.
True, but it no doubt greatly reduces the amount of government involvement in this area.
Thanks for the head's up! :)

Not long after this HN thread, this thread popped up on Reddit. It answered a lot of my questions ([1], [2], [4], and [7]), and I found it immensely useful:

https://www.reddit.com/r/LearnJapanese/comments/crlsqj/googl...
I don't understand why we can't pursue all of those options at the same time. Especially solar road vs laser energy from space.

Solar roads has the distinct advantage over covering all the roads in that it's not an eye sore and fits more seamlessly in the scenario we figure out the engineering.
I live in LA and neither quake was worth warning anyone. They were hundreds of miles away. Why bring it up a month later?
And some aren't even worth trying in the first place.
Like this idea.

edit: I'm all for trying crazy moonshots. Just not down right idiotic ones that are pushed by pseudo-science and clickbait activism [1].

[1]https://www.vox.com/2014/5/14/5717036/should-we-cover-all-ou...
I agree it is too late to enact things like a lower minimum wage — the damage is already done.

The real problem came from cheap consumer credit... everything in our economy is built around the existence of such credit. Consumers are conditioned and targeted to consume and borrow. Full stop.

Same thing happened with education — 4 years of productive time were siphoned towards college degrees that didn’t mean much.

This is the gutting of the middle class... not fiscal conservatism.