skysight-inc/HackerNews huggingface dataset:
>In Australia almost no one with some or most of the symptoms is being tested. General Practitioners are basically telling people to fuck off, self isolate and call the hospital if symptoms worsen.

This is simply false:

>Here, testing is free and widely available, thanks to early and coordinated planning for a pandemic. On Thursday, Mr. Hanks said he and his wife had seen the efforts firsthand, as they tested positive for the virus.

https://www.nytimes.com/2020/03/12/world/australia/tom-hanks...
because bitcoin is not money, it is an asset, it is a property that can be traded for money but its value fluctuates and is not tied to anything other than people's perceived future value in it (which can be valuable, don't get me wrong there, all I am saying that it will change all the time)
I think contempt is unique in that it is summarily imposed by a judge for failing to follow a lawful order, correct?
That's just a poor default, I guess. Rust compiles debug builds unless you tell it not to.
> "What is the limiting factor on the precision"

Precision in this project is limited by rise time of the received signal. Meanwhile, this time is limited by rise time of laser's current. It is too long now - 10 ns.

Theoretical TDC resolution is ~13mm per BIN.

You could see real results here: https://github.com/iliasam/OpenTOFLidar/wiki/Resolution-of-t...

> "How did you calculate the appropriate laser lens and standoff"

I can't say that there was too much calculations.

The is some information here: http://www.ti.com/lit/ug/tiduc73b/tiduc73b.pdf (part 2.3.5)

and here: http://www.ti.com/lit/ug/tiducm1b/tiducm1b.pdf (part 2.3.2)

Laser's lens should have maximum possible focal length, but it must not crop light beam from the diode.

Photodiode's lens should have maximum Entrance pupil

> "Is the CS mount lens's focal length important, or is there no need for a sharp image at all distances?"

You need to have sharp image at big distances. At short distances it is not important - light signal is high enough.

> "Why use one CS-mount lens and one M12 lens, rather than two M12 lenses?"

I think that it is easier to find lens with big "Entrance pupil" with CS mount that with M12 mount. Bigger mount - bigger lens diameter, bigger "Entrance pupil".

> "Do you need any sort of dynamic gain"

I don't have any kind of electrical gain control. There is an ability to change APD gain, but I don't use it.

> "optical filtering on the received signal"

I don't have filter in my LIDAR, but it is necessary to have it if you are going to run LIDAR at sunlight.
I give links to a several interference filters in "LidarTotalBOM.xlsx".

> "Did you need much fancy $$$$ test equipment to get the design working".

All that I have is Tektronix TDS540D oscilloscope (bought at the Ebay for $300) and multimeter.
Why is cash king?
Show HN: Atlantica – Create a mobile app for free in 10 minutes,no code required
Oh ok I see. I thought it was a program you could opt-out of automatically versus having to do it each time you might get your picture taken.

Thank you!
Those three languages also happen to have memory safety.
I would like to second everything you've said here, and add a few things:

1. If you are feeling stuck, please reach out on users.rust-lang.org or discord.gg/rust-lang. We're here to help!

2. If you're feeling really stuck, maybe take a break and come back to Rust in a few months. A number of people have given up on Rust in frustration, came back after a significant amount of time, and then said "why did I think that was so hard before?"

3. Don't worry about a few calls to clone when you're getting started; it's better to have a working program that does some extra copying than it is to not have a program at all.

4. Especially when starting out, you almost always want structs to own their data. Don't use references as struct members unless you're absolutely sure that's what you want. Advice #3 helps with this.

5. I think one of the biggest mindsets that can set you up for failure with Rust is "The compiler says no, how do I get it to do what I want anyway" instead of "The compiler says no, what is it telling me, and how can I work with it instead?" Especially if you come from an OO heavy background, you may need to change the patterns that you reach for initially. Yes, you can write any style in any language, but Rust pushes you towards its idioms much more strongly than other languages do.
What the Venture Market Could Look Like in the Coronavirus Era
If you want an example of how to competently handle this crisis, just look at South Korea.

The US had a whole month to get prepared for this, and instead did pretty much nothing, and even refused to import test kits and prepare itself for large-scale testing the way SK did.

The US has absolutely been incompetent, and while it hasn't been the only incompetent country (Spain is probably another one), it's easily the most visible because of its size and economic power and status as a superpower.
> How is "The adult voting public cannot be trusted to _invest sufficient effort_ to identify 'wrong' beliefs themselves"
> functionally different from "The adult voting public cannot be trusted to identify 'wrong' beliefs themselves"

You've inserted the word "trust" in there - I was saying we all shouldn't HAVE to.

Let me insert "trust" into your argument, not to be troll-ey, but to show how that's biasing the argument needlessly, and I'll also answer your question.

I recognize my limitation to not be an expert in everything, including distinguishing experts in all fields from those that falsely claim to be.

I recognize that others are ALSO so limited. If you want to call that not trusting people, feel free, and let's adjust this argument to be "there are other people who feel as I do" - the conclusions will be the same.

We (myself and these like-minded others) wish to select those we do trust to filter out the worst abuses. We'll set up rules to say on what basis these decisions are made.

Of course, any system is prone to abuse, but we judge that our ability to monitor this group is better than our ability to monitor literally everyone.

You aren't trusting us to do that.

> it leads to a centralized authority being entrusted with the task of determining what is and isn't wrong and that is a fundamental non starter if we are to try and preserve free speech in a meaningful way

Considering my position here that absolute free speech turns out to be harmful, this feels like a tautology.

Humans have been filtering and evaluating words from others throughout history. Often poorly, even without a centralized authority involved. Often a centralized authority filters words poorly. Yet in the face of both of these words have been heard, progress is made. Perhaps the more important aspect is that we individuals value hearing the words of others, even words we don't like, and push back against excessive filtering, without requiring that no filtering be done.

You aren't trusting us to be able to do that.
> we probably can't have local party officials stand outside of everyone's homes and test them every time they come back.

Yeah, we can't have a lot of China's solutions here at all.

But we could have state or county officials set up voluntary fever screenings and have them relay the criticality of the value of isolation limiting the spread of the disease.

> We could and should set up mobile testing facilities.

Colorado has some now. Other states should follow their lead. Unfortunately AFAICT it only includes a "get your previously-ordered-by-a-physician test here". Which means that the potentially infectious patient had to visit a clinic with other patients who came for other reasons. Better still would be to (like SK) staff these mobile clinics with physicians who can take a history, rule out influenza/bacterial pneumonia and order tests like a CT if necessary.
Absolutely. Was talking with a friend who was confused about why schools in remote areas are being shut down - testing needs to be done just so people realize that it's not just Washington or New York, this is pretty much everywhere or imminently about to be everywhere in the United States.
I wouldn't necessarily call the data "garbage" but the numbers are definitely _soft_.

But soft numbers are a common issue with many areas of public health. In particular, analysis of the current pandemic suffers from both a "numerator" and "denominator" problem (http://conflict.lshtm.ac.uk/page_83.htm)

I think many of us are accustomed to getting high-quality stats when studying a process. But that's often not possible with a fast-moving public health issue.

I think you have to acknowledge the limitations of the data, but it can still be helpful.

The thing I _don't_ like about the JHU dashboard is that it doesn't really let you slice the data in interesting ways. For example, I'd like to be able to click on a country or state/province and see temporal data. This doesn't seem like it would be that difficult, but maybe I'm naive.
There was a technical issue, and a policy issue.
Here's a few things that could have (and reasonably should have) been done:

* Getting testing kits distributed earlier.

* Not downplaying the severity and contagiousness of the virus.

* Not presenting the virus as a Democratic hoax.

* Putting industry experts in charge of the response rather than politicians.

* Having a fully staffed CDC.

There have been multiple statements by the administration to correct or rectify earlier statements by the same administration. The response has been confusing, contradictory, and in its partisan nature (see bullet point 3 and 4), untrustworthy.
Thank god Europe had the extended sick leave in place or else they might have a COVID outbreak right now.
does not need to go anywhere, cash is a form of storage
If large numbers of people start dying you'll likely see the tolerance for political grandstanding drop to near zero. In the meantime, politics are the dominate sport of the United States and people will vigorously cheer for their chosen team.
Because number of users is a nice pr metric. Just pretend the 15% which are bots are real, and pretend the 15% of suspended and abandoned accounts are active.
There is nothing secret about RNA testing. Any decent lab can synthetise its own markers from a file downloaded from internet. It is like genetic research is illegal in US or what.
How to prepare your team for remote work fast
You might enjoy the movie Primer [0].

[0] https://www.youtube.com/watch?v=x_HHnXeMWT0
We are in the third month of the outbreak and "free testing" is still something up for debate... It's surreal.. When time means lives, the gov should really unite and work on something useful quickly.

I'm wondering when did US start to lose the ability of "fast execution" since WWII.
Why aren't all scientific papers written this simply?
> child labour

> The UK Financial Times reported said that students, aged between 17-19, were being forced by their school to participate in the internship.
We should rethink our entire security culture, which has long been unmoored from reality. Why is (most) everyone still expected to take their shoes off in airports, because one inept terrorist attempted to detonate a bomb in his shoes back in 2001? Likewise, things like public toilets in subway stations have been 'temporarily closed' for nearly 20 years.

We went from rational levels of elevated caution and prudence to paranoia and created a surveillance society, creating a false sense of security against other hazards. Now we're in a state of institutional and fiscal paralysis because we've run into a conflict with nature, in which social theater and abstractions like nationality or sovereignty are meaningless.

https://en.wikipedia.org/wiki/Richard_Reid#Preparation_for_b...
Assets and long term-investments mean nothing during a crisis, so short-term value stores becomes a much higher priority (currency).
Like a handful, tops.
That's his opinion. Tens of millions of other Americans don't think so at all, and they're making their voices heard in national elections and successfully choosing our leaders.
When the Computer Wore a Skirt (NASA Langley’s Computers)
It is a lesson on how not to do breaking changes, when one wants the community to actually adopt new versions.
The startups I worked in around that time - we were using recent hardware with 4 digit years and unconcerned about Y2K issues.

So while we were -aware- of the Y2K issue, it didn't impact any of us in a concrete fashion. We would talk about people we knew on Y2K projects, which were mostly mission critical legacy systems.

So it's not inconceivable for devs in the 90s to have only cursory awareness of the -real- issues that the people who worked on Y2K projects were facing and solved.
Anyone want guess at how difficult it is to ramp up testing to a population of 320 million for a disease that didn't exist 4 months ago?
That seems like an unsubstantiated claim.

Does the current set of systems promote the progress of "science" and "useful arts" as they would have been known by those signing those laws many lifetimes ago?

From what I remember of other parts of the constitution and amendments offhand they generally don't include an explicit directive about why something is there. It's extremely implicit as an often obvious effect of what the law expressly allows or forbids.

Thus it is very reasonable to ask: Is the behavior we see from IBM in this news story promoting the progress of "science" and/or "useful arts"? Is the behavior of industry overall with respect to these tools doing more good or more harm?
> The Framers were not omniscient, and the Constitution isn't a religious text.

Sure, but this is the text we have. If you don’t like what it creates, change it, there is a procedure to add amendments or change the whole thing altogether. Of course, the difficulty then is that quite a lot of people in fact like what we have and want to keep it this way.
we did PCR in my highschool biochem lab...
> a safety net in times of pandemic is, in my opinion, nowhere close to a Constitutional overreach based on how these objectives have been interpreted.

Fair.

The provisions in the bill are not impermanent, though. If they had a time limit on them, they would be reasonable.

[Edit for spelling]
Offering a diagnostic test without FDA approval is illegal, for good reason (there would be companies far worse than Theranos) but clearly in an emergency regulators need to adapt.
It's not true for europe either. People are not expexted to go to GP or the hospital for tests. Testing is done in people's homes.
From a technical perspective, it is a simple test. Hard part is chain of custody and sample integrity - controls, etc.
They won't lol. FFS joe biden is getting nominated
The white house said that testing is going "really smooth" and all travelers are being tested two hours ago on live TV, both are lies, obviously the white house is not on board with Fauci's message.
Just return 401. Or 301. Virus will disappear!
Brazil communications secretary, who met Trump, has coronavirus
Fed Pumps Money into the Market
It’s not false because I went through this myself yesterday. Was told over the phone “don’t come in, its probably a common cold, stay at home and if symptoms worsen called the health hotline”

Community forums are full others reporting similar stories

https://apple.news/ASvoRONOWS9ijWX4RrGmiTQ

“Currently we are not testing everyone, and whilst this may change in the future, at the moment this isn’t feasible. The pressure on labs would be mammoth and the yield is likely low,”
Testing means nothing if people then just go to work anyway because they can't stay home, whether to self quarantine or to care for family members and then self quarantine, without being fired.
I would steer you away from Rc and Arc unless you know you need them.
Brown Political Review Interviews Paul Graham
> The Federal government's duty to the people (according to the Constitution) is seeing to their safety from foreign threats. Testing for all is in line with that duty. Being a social safety net is the duty of your family, your church, and your friends. Maybe even your state government.

This is technically correct, and at the time perfectly reasonable.

What would the founding fathers advise when they observed our current situation, where we've allowed the planet to grow into this massively interconnected system, the particular design of which is derived from the "fact" that we've been optimizing for profits above almost everything else (like redundancy/resiliency/shock) for the last <x> decades? I imagine they'd start by remarking that they would never have gotten us into this situation in the first place (for reasons that I hope should finally be visible to people) - but now that we're here, what do you think their advice (including temporary measures) would be now that a significant number of variables have significantly changed?
What that the reason why the President looked to worried last night? Or was it that he has his meeting with the representatives from all major banks just before, and they explained to him that you cannot fix a real-world crisis with virtual money?
I got some bad news if you think the USA's response and cultural attitudes are going to result in a better weathering of this crisis.
Are there any differences for Covid-19 samples versus any of the other samples such labs would be routinely testing though?
Motion sense could be used in a lot of applications.

I’d like to use an ATM without touching anything.

The coronavirus scare should open up markets.
1) Regulatory issues

2) The reagents needed for the testing are also in extremely short supply, and labs are having a hard time getting more. So, you can develop a test, but your testing capacity will remain limited.
Drank App – Never wait in a long line at bars again
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Especially since the article isn't about him. It mentions him twice, once citing the travel ban, another time quoting him as saying that we have good testing infrastructure (but noting that he did not elaborate). It does not describe him as "bad" or say anything directly negative. The article is about a high-level bureaucrat who says only "we".

The OP's comment is, unfortunately, indicative. The OP reads it as negative, and the reality is negative, but his primary concern is about the assignment of blame. In particular, assuring that it does not fall on him, and trying to shift it anywhere else. Meantime, the person actually cited in the article is trying to get something done -- which starts by admitting the there is a thing that needs to be done.
The OP probably can't cash out on the RSUs at this point, and options plays are like shooting fish in a barrel at the moment. Remember that the hard part of an options play is knowing when something is going to happen with a fair amount of accuracy, but there probably won't be a miraculous recovery of the market in the next 24-48 hours.
Its value is not suddenly dropping as the same rate as the other investments. You can (hopefully) buy food with it.

(But being good to your family, having low or no debt and some prudent food storage are also wise, among other things our church has counseled us for a long time). (Edit: and savings "for a rainy day".)

(Edit: This is considering the definition of "cash" to be not just paper in your hand, but as a regulated currency whether paper or in a bank. Further clarification in another reply just below.)
Like it or not, guaranteed medical leave and guaranteed sick leave has been a political issue for decades.

It makes sense in times like these of course. But it's been 50 years since there's been a panic similar to this over a virus.

Attaching something permanent to a disaster relief bill is a scummy political move.
Your analogy makes no sense. Land is a scarce and finite resource. Land ownership is a zero sum game. Patents are arbitrary and there can be an infinite number of them.

You don't need patents to build software but you need land for crops.
That’s Tom Hanks by the way. You don’t think he got preferential treatment?
Yeah, I agree. We need distributed solutions with a lot of layers.

- probably mandate some paid leave for the next X months federally
- local testing centers
- quarantine at state and local levels when there are confirmed cases (probably the hardest thing)
- incentivize private production of test kits, medical supplies, cleaning supplies, etc
- checking travelers
That's unlikely, covid19 is not infectious for very long after symptoms disappear [relative to HIV's infectiousness].
Politics is complicated and every situation is not the same. This is the biggest issue in the world right now and voters are watching C19 coverage.

There’s a famous saying in politics that every crisis is an opportunity. The United States has already fallen well behind everyone else and what we’re doing, there could be political problems to resisting this too much too publicly. Also, and saying this in a completely neutral fashion, the US president is a wildcard. If he supports this, R senators fearing reelection will support it as well
Exactly. It's like here in Florida, when the systems go down after a hurricane, cash is king in the digital age.
Unit Testing Entry and Entry Points
Yes, current crisis. Everyone agrees on the fact that the virus will probably spread and become much more widespread. Isn't it logical that costs will go up too, especially if the state decides that the economy isn't worth the loss of lives? Is slippery slope just saying that cause and effect exist now?

I don't see how the original comment was unreasonable in asking what is the threshold where economic losses are too high. Halting all economic activity to completely stop the spread of the disease and prevent deaths amounts to a 100% taxation since you are forced to not work and generate revenue. Whether that is acceptable or not isn't my point, but asking the question isn't a fallacy
Here is the text of the bill for those interested.

H.R.6201 - Families First Coronavirus Response Act.

https://www.congress.gov/bill/116th-congress/house-bill/6201...
The point of science communication isn't stamp collecting random disconnected facts. It's to give people mental models that they can use to answer questions. If this information is so half-baked and imperfect that you can't make a basic inference from it, then it's not good science communication.
What do you mean the tests don't exist? The most common test uses nasal swabs and the Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) technique. Millions have been tested globally and thousands in the US: https://www.cdc.gov/coronavirus/2019-ncov/about/testing.html

In the UK the NHS will drop a kit off at your house if you call up and say you have the symptons. In the UK you will soon be able to buy them directly for £40 online: https://www.drandrews.co.uk/covid-19-corona-virus-self-test-...
U.S. Testing System Failing; EU May Be Overwhelmed