skysight-inc/HackerNews huggingface dataset:
As a test a local build of a harmless virus has been done, it worked. You still need to be skilled, though, no terrorist is downloading the smallpox genome and cranking out a lethal agent.
>the WeWork IPO-that-wasn't has caused most VC's to decide that you really need to demonstrate profitability before you can IPO,

That's a polite way to put it.

I'd say the WeWork IPO-that-wasn't was the public saying don't foist your shit on us. How many VC bagholders are now sitting on "billions of dollars" in meaningless paper gains based on nothing but SoftBank's and others nonsense valuations?
Facebook content moderators required to sign PTSD forms
I worked for 1 week at a startup. The founder tried twice to convince me that he is the original Satoshi. He also told me similar fantastic stories every day, such as how he got blown straight through by scud missile shrapnel when he was in military special ops in one of 3 wars he fought in, yet somehow came out without scars or any ongoing physical medical issues related to it. He's also really scrawny - not something I'd expect from even a retired soldier after so much deployment. He constantly felt people were playing tricks on him (like the cleaner moving his network cables around just to annoy him, someone deleting all his monitoring video footage despite the fact that it is kept in his home, the military suddenly claiming they've never heard of him... it goes on and on even though the time was so short... I swear he hired me just to have an audience), and he shooed constructive and strategic people out of his life over stories of bizarre situations and especially confrontations that most surely weren't triggered by happenings in the real world. He talked a lot about PTSD, but other than overwhelming paranoia, the symptoms he showed were far from that.

It takes a certain level of creativity to be successful in a startup. But his type of creativity made it pretty clear to me that I could expect his startup to fail spectacularly. Recently he suggested that his VC people are starting to push him away. Everyone has ideas, but not everyone has the clarity of mind to turn them into something tangible.

This guy doesn't need VC. He needs a psychiatric evaluation. It's extremely hard to tell if his startup idea was one of his many delusions or not, and there is a VC company holding the can for him even now. I'm absolutely surprised they've stuck with him this long. He must hide it well around them.

So that's one way to tell if a startup can survive - is the founder capable of seeing it through without going completely mad? I hope it's not what you're dealing with.
I've accidentally had phones on during takeoff and they lost signal within seconds. Were they already going too fast? Or was there jamming?
They can (and do) put their content behind a login sometimes to prevent this. Either way Google only gets answers as long those answers exist somewhere so I doubt Quora and its alternatives are going away. The site should be rather cheap to run as well (although it's easy to mismanage millions these days).
"It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so." - (Somebody)
My previous company, in true disruptive fashion, was setup as an autonomous entity outside of Fortune 100 mothership with the sole goal to crack a certain market.

3 years in, as we were passing through the trough of disillusionment, I picked up _The Innovator's Dilemma_. Boy did it predict everything we went through. It was like happening upon the script for your life. It was a transcendental experience. And I've recommended the book to anyone there who would listen to me! At one point I was considering buying copies of it and giving it to the executives but I refrained. One thing I took away from the whole experience is knowledge will only take you so far, execution is everything. When someone like Clay comes along and imparts profound wisdom, capitalize on it.

World lost a great mind.
> I think this proves my point?

No, because "less accurate but in practical terms the difference can often be ignored" is not the same as "the same accuracy".
I want to be the person who is sympathetic to people being laid off, instead of making light of the situation.

But Quora grinds my gears so hard that I can't separate the two.
I think this is an important point. I was at a company that got disrupted out of existence, and The Innovator's Dilemma was required reading for all employees. So it's not that companies are necessarily unaware of the impending problem, it's just that they are often structurally unable to respond.
Like others I'm amazed that Quora still exists. In my experience it's accessible to people outside the programming bubble, but eschewed a lot of deliberate choices that StackOverflow made back in the early days. The result is that it's more of a question and opinion site, than a question and answer site.

There isn't anything wrong with this differentiation in some ways, but it has driven the company further down the SEO path and they don't seem to have tried other things. It feels like SO has built up a recruiting business, tried many times to get their Q&A software into companies with varying success, really managed the costs of their business, and invited public scrutiny of their tech. I can only imagine how much Quora are hemorrhaging from running costs and bad tech choices.
I had a gym that required a certified letter to cancel.
It's grey because someone in their infinite wisdom downvoted you.

Most likely because they'd rather downvote rather than challenge your statement. It's a worrying trend.
I've upgraded since, but my old 182 would do 10K any day and 150knots with a slight tailwind.
Brushing is mainly supposed to mechanically take the bacteria off of your teeth, like washing your hands, not kill them chemically. The fluoride exists to help keep enamel intact.
Startup at this point is effectively shorthand for a company that is growing but doesn't have a firm business model
Do you have any examples of serious papers written by serious linguists debating whether X and Y are the same language or not?

I would be very surprised if such a thing exists.
Computer-generated cars using adjustable chassis for ads (2017)
Right on. Upvoted both your comments, FWIW
It's not about killing bacteria, its about leaving fluoride ions in a slightly basic or at least nonacidic environment for long enough to convert hydroxyapatite to fluorohydroxyapatite. This chemical reaction takes time, but considerably strengthens your teeth against corrosion and prevents cavities.
Really? This is on Hacker News?
This is more like a pancake cake. I like the individual thin ones better. But it's an interesting hack none the less.
I highly recommend Mike Duncans 'revolutions' podcast for a thorough and entertaining history of Cromwell and the entire English revolution - as well as the American revolution, French (my current season) and about 6 others.
Jones was not completely wrong. The chemicals don't make the frogs 'gay' but they definitely severely mess with their sexuality

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2842049/
Water in the UK is also supplemented with flouride. I think the point is that toothpaste contains more.
So just no one should do the job then? What’s your solution? Yeah they see horrible shit, that’s the job. There’s no way to do the job and NOT see horrible shit.

Should they get mental health care? Yes. Should they be treated better? Sure. Should they unionize? I’m all for it. But none of that stuff keeps them from handling garbage day in and day out. Because that’s the job.
> we've already observed quantization of gravitational potential

No, we haven't. We've observed that, under appropriate conditions, gravitational potential has to be included in the potential term in the Hamiltonian. But the potential term in the Hamiltonian is not quantized; it's not part of the quantum state and it does not exhibit quantum properties. The only things in the experiment that exhibit quantum properties are the neutrons themselves.
Alternatively, I will reply to myself at that point in the thread. Just have to make sure you don't include this when conversing later, which isn't a problem as I generally reply to the other person's inbound.

Sending myself emails as notes is the stickiest note taking app I've had in 20+ years of internetting.
Einstein didn't work on the nuclear bomb at all. According to https://www.amnh.org/exhibitions/einstein/peace-and-war/the-..., he wrote that famous letter to Roosevelt and was later denied the necessary security clearance.
Dental advice from the Brits? I'll pass.
Here's what Wikidata says about Earth, an item that is number 2 in the ID list, and also on their front page as an example of incredible data.

https://www.wikidata.org/wiki/Q2

I struggle to find anything interesting on this page. It is apparently a "topic of geography", whatever that means as a statement. It has a WordLift URL. It is an instance of an inner planet.

The first perhaps verifiable, solid fact, that Earth has a diameter of "12,742 kilometre", is immediately suspect. There is no clarifying remark, not even a note, that Earth is not any uniform shape and cannot have a single value as
its diameter.

This is my problem with SPARQL, with "data bases", in that sense. Data alone is useless without a context or a framework in which it can be truly understood. Facts like this can have multiple values depending on exactly what you're measuring, or what you're using the measurement for.

And this on the page for Earth, an example that is used on their front page, and has the ID of 2. It is the second item to ever be created in Wikidata, after Q1, "Universe", and yet everything on it is useless.
30 minutes according to some dentists I know.

I used to rinse my mouth with water, now I just spit the toothpaste.

I haven't asked but this may be recommended only if you're not using an abrasive toothpaste which could damage your teeth enamel.
Every time Twitter comes up on HN people complain about missing reverse chronological order and hating on the liked by tweets feature. The old classic mode is one click away. Or am I in a weird long running A/B testing group still having access to this feature? I know the default mode is not what most people here like but is it really that hard to switch the display mode?
Only about 10% of it, according to Wikipedia. https://en.wikipedia.org/wiki/Fluoridation_by_country (75% of those with community water systems in the U.S., for reference.)
FYI, that UX Movement article misrepresents the few studies that it actually cites and offers no evidence for its claim regarding saturation causing eye strain. I know this because someone complained at me recently about a design, linked to that article, and I actually bothered to read the couple of studies it did cite.

Where the UX Movement article says “saturation and brightness have a more significant impact [than hue on arousal]”, one of the studies it cites clearly states that brightness had no impact on arousal. This obvious mistake calls into doubt (for me, at least) whether the author has any objective basis for their claims.

On the other hand, this study which actually looks at colour preferences of people experiencing eye strain [0] appears to show (Figure 1) that people experiencing eye strain don’t select away from green, which seems to refute fairly strongly your claim that green text causes eye strain for everybody. This study references several other studies on the effects of colour overlays so it is probably a good resource for additional research.

[0] https://insights.ovid.com/optometry-vision-science/opvis/201...
ex* girlfriend
That's because they started paying people to post questions, which is completely absurd since the real value is in the answers.

Unfortunately, as predicted by pretty much everyone, it led to a massive influx of generic, repetitive, and trivial questions spammed endlessly to the top writers who have now stopped contributing. Most questions are just spam sinkholes in an endless battle by fake accounts for top position.
Maybe that is a selection effect. Objects like this that are more inclined will tend to look more like regular galaxies so will not be identified as ring galaxies so easily.
Considering that "back then" (e.g. 2000 years ago) people didn't consume sugar, soft drinks, and their food was mostly natural and sparse (no 3 meals and 2 snacks), plus the fact that people didn't live to 100yo, I would assume that tooth decay was less of a problem.

Interesting article for about 12,000 years ago:
https://eu.usatoday.com/story/news/nation/2014/01/06/tooth-d...

The comparison to London 200 years ago is astonishing, sugar is bad for us a hundred different ways!
I can't hear 'carbon-14' without thinking of archaeology.

Archaeologists of 3020: We carbon dated this object, and it comes from the future.
Clay Christensen on Business and Life
I bet he likes getting pegged
Plants evolved lignin well before fungus figured out how to break it down. That gap in time is when most of our coal was formed.
I'm not a fan of crypto at all, but I like the originality of this story and real consistency of Nzyo developers. It isn't clear to me are these sentinels in the same cycle with verifiers or they are out of it, fully independent.
Besides the valid points of the other commenters, I have a nitpick: It is special relativity that deals with things near the speed of light, you do not need GR for it. GR is necessary to account for strong gravitational fields.
10% of water in UK, not 10% of toothpaste.
It's not hard at all, it's just not permanent. After about 3-4 days twitter "helpfully" sets one back to the order they want you to see.
"Using a mouthwash that contains fluoride can help prevent tooth decay, but don't use mouthwash (even a fluoride one) straight after brushing your teeth or it'll wash away the concentrated fluoride in the toothpaste left on your teeth. "
I suspect it doesn't really make a difference, there may have been one mediocre study which showed a couple percent improvement, or more than likely one opinion simply gained more traction than the other.

Both orders have downsides - if you floss first, you risk forcing detritus back between your teeth while brushing.

If you brush first, you risk leaving some of the gunk from between your teeth on the surfaces - although perhaps now it will be bound loosely enough to be washed off with water.

Either way you're probably getting rid of most of the organic material anyway.
I think there is a symbiotic relationship here. Google still needs to feed enough traffic into their main training sets so it can keep training. If these training sets were to fully die (or become stale) then the Google NLP would be equally useless. So Google has an inherent desire to prop up Quora, if anything.

Anecdotally, Quora has taken a top spot in SEO alongside Stackoverflow for a lot of my searches (and Reddit). I think that over time this will improve actually and I don't think this layoff is because they are doing poorly, rather the opposite, I predict they're doing well enough to go IPO soon and need to clean house.
>Sign in to read more

No thank you.
Why can’t negative SEO be unnatural?
I think we all use excessive amount of toothpaste. That makes us get a mouth full of foam, that subsequently forces us to rinse instead of just spit.
You don't blame the tool. You blame the toolmaker.

Every real toolmaker is gifted with perfect precognitive capabilities so their tool behaves exactly as it should for all users, don'cha'know.
I disagree. There are fairly distinct cultures; Stephen Colbert+Hollywood have quite a different overall view on many political topics than, say, /r/politics or /r/Economics does.
Kafka in Netflix Studios
Hah. This is perfectly normal for me. I have never done the rinsing after toothbrushing thing. There's definitely something about childhood patterns though. The slight taste of toothpaste in my mouth makes me feel clean and refreshed. I brush my teeth several times a day, usually just before I go somewhere.
Twitter regularly switches you back to garbage mode without telling you, and you have to mute all the words in this submission to make classic mode work. muting all these words does nothing if you are in garbage mode.
There’s more. I think people are afraid. First from having to do something “unpleasant” and on a deeper level from loosing their own status of “importance”. It’s a pity indeed.
That's why my dentist recommends a fluoride mouthwash after brushing.
Is there something wrong with that? Nice casual homophobia by the way.
My routine:

1. Floss
2. Waterpik (water + mouthwash)
3. Electric brush, no rinsing
Depends what you're optimizing for. If you never eat or drink anything again, your teeth will stay healthy until you die...?

I've heard dentists recommend brushing after every meal. Which really doesn't seem realistic for people who snack or regularly drink coffee / tea.
Don’t pressures and temperatures impact which chemical classes can do which job?
> Was everyone's teeth just completely screwed, all the time? How could evolution work that way? We need our teeth to eat.

Grains have sugar in them that cause tooth decay. You can blame agriculture, mostly.
I can hear the halo music already
I remember readinh about this a few months ago when the story came out. How is this newsworthy now?
Baidu Xuperchain
We do know how bad teeth were a century ago. There's even evidence that humans several thousands of years ago didn't have as many cavities as we do today because of their diet.

I'm not in a position to give you advice, but be very careful with your teeth. A tootache can lead to an infection that if not treaded may kill you.
Scientist says aliens in UFOs might be Earthlings from the future
> It's weird that we don't know what teeth were like before fluoride was invented.

We have teeth from fossils that are a few thousand years old all the way to over a million years old.

https://www.npr.org/templates/story/story.php?storyId=129562...

https://www.smithsonianmag.com/science-nature/oldest-human-f...

https://www.nationalgeographic.com/news/2018/01/oldest-human...
Side piece, never worth it. Gotta lie and sneak. Why go out for steak when you got tacos at home?
I've said it in a few other posts but post WeWork, a lot of the big D, E, F companies are expected to hit profitability/break-even soon.

Some other threads are talking about Google stealing a lot of the content. That's definitely true for weather, flights, but things like long form content is still long form. I would argue these layoffs aren't a function of the GMachine at work, but more generally all the big tech firms with lofted valuations are being 'called in'. Every week, I see at least 1 large name running lay offs here on HNews.

The bubble at the 1B+ vals has started to correct. Firms are expecting people to prove their worth. Lots of times this means IPO and then trading on a multiple of earnings. Many of these guys aren't even near net positive so it's very scary.

I expect 2020 to be the year startups have a lot of trouble at the Series C.
Do you have more information on this? I thought that fluoride was toxic and thus shouldn't be swallowed. Are the quantities too small to harm you yet sufficient to prevent the formation of caries?
The toothpaste I'm using doesn't even contain flouride. What do?
no, I left my door open to share my indoor library with neighbors does not mean you can take them away, google is supposed to help me to locate those original content, it should stay as a search engine to keep fair play of original content providers.
Unless of course you drink filtered water.
You also have to be logged in to comment. Simon_says decided to comment rather than hide.
> Was everyone's teeth just completely screwed, all the time?

Well, often, yes. See, for example, the history of pre-modern dentures, which were common for people in only their 30s and 40s (George Washington's teeth all fell out before he even reached 30!).

> How could evolution work that way?

Two reasons:

First, if you've had children, you're surplus material. Most people throughout history who have had children have done so by the age of 30 or 40, and so after that, their teeth just don't matter, evolution-wise.

Second, humans evolved in an environment with very limited access to sugar and acidic foods. Sugar and acidic foods are the main cause of cavities, and have been common since the invention of civilization and extremely common since the advent of mass industrialization.

> Still have it six years later, and it's fine.

It's probably not fine. It's entirely possible to have teeth that are apparently pain-free right up until they literally snap in half from deep cavities.
just off the top of my head, https://database.lichess.org/ has a larger gameplay dataset than what you're claiming
Women can peg men too
hmmm... I was trying to understand how the smartkey system worked and ran across this article:

"Millions of Kwikset Smartkey Locks Vulnerable to Hacking, Say Researchers"

https://www.wired.com/2013/08/kwikset-smarkey-lock-vulns/

EDIT: and then I noticed there is smartkey gen 1, gen 2 and gen 3 so I'm not sure if this is applicable.
you’d be surprised. it’s usually just the approval of one other engineer. and sometimes you can even force push
>I can't imagine that jobs acquired this way ever last, but that doesn't stop people from trying.

Probably because there's a real slice of the job market that gets paid six figures to do nothing much more than browse the internet all day.

2 of the 5 tech jobs I've had have had this. I kid you not, I spent 6 months opening my PC, watching email, and doing whatever I wanted from home. My current job is like this as well but I actually get to help others, so it's not as bad. Believe me, I don't want it -- it gets very boring, very quickly, but legal agreements mean you can't really work on anything else.

And it's not hard to imagine someone trying to cover up a blunder of making a bad hire by giving them no work or busy work because the company is just awash in so much cash that it doesn't actually affect much to just let them leech compared to the reputation damage of admitting that mistake.

Every time someone cannot believe this is possible, I have no empathy for them. It has happened over and over and over and over again. If you don't believe this happens, you are being willfully ignorant! Don't be ignorant!

Sadly there just isn't a good solution for it. A more complex interview doesn't fix it.
I love PinballMap.com. I am a Patreon donator as I felt their service deserved my support.
https://neurogal.com/neuro-blog/is-fluoride-toxic-to-the-bra....

HOW DO I AVOID FLUORIDE TOXICITY?
1. AVOID FLUORIDATED WATER
2. AVOID NON-STICK COOKWARE
3. CHOOSE YOUR TEA WISELY
4. USE FLUORIDE-FREE TOOTHPASTE

I hate to be a contrarian, but the latest intelligence says fluoride is a neurotoxin.
Yeah, it popped up for me as it was rising (I couldn't tell you how many likes it had). I thought "wow, I didn't expect Bernie to address this issue in that way." Then I saw the username, felt a little duped but hey, this is the web, I'm used to it. Then I felt very duped when I realized that nobody I followed had followed the account, let alone liked or retweeted it. It wasn't Promoted. It ended up on my feed because it was popular and related to my interests, I guess? What made me feel uneasy was that I follow the real Bernie Sanders, and a website showed me something that I legitimately thought he had said for a moment, and I didn't even set myself up to be in that position.
So they overestimated what Quora really could be and burned way more money? Or is Google suffocating smaller tech companies?

Content curation doesn’t scale as well as search algorithms. It reminds me of Yahoo and other portals who relies on editorial staffs (not meant it in a bad way).
In some areas there is too much of fluoride naturally and it must be removed, not added.

Geographical areas associated with groundwater having over 1.5 mg/L of naturally occurring fluoride, which is above recommended levels https://en.wikipedia.org/wiki/Water_fluoridation#/media/File...
Why Coax Internet Cannot Offer Symmetrical Speeds